COMPOSITION

专利摘要:
Liquid laundry composition comprising octylisothiazolinone and an additional isothiazolinone selected from benzisothiazolinone, chloromethylisothiazolinone, 2-methyl-1,2-benzisothiazol-3 (2H) -one and methylisothiazolinone.
公开号:BE1026541B1
申请号:E20195497
申请日:2019-07-30
公开日:2020-03-16
发明作者:Matthew Rhys Thomas
申请人:Unilever Sa；
IPC主号:

专利说明:

COMPOSITION
The present invention laundry compositions comprising mixtures of isothiazolinones.
Despite the prior art there remains a need for improved preserved liquid laundry compositions. The preservative must be stable in the liquid laundry composition and effective against environmental microorganisms typically found in laundry compositions as a result of manufacturing processes.
Accordingly, and in a first aspect, there is provided a liquid laundry composition comprising octylisothiazolinone and an additional isothiazolinone selected from benzisothiazolinone, chloromethylisothiazolinone, 2-methyl-l, 2benzisothiazol-3 (2H) -one and methylisothiazolinone .
Preferably, octylisothiazolinone and additional isothiazolinone are present in a weight ratio ranging from 0.05: 1 to 65: 1, more preferably from 0.1: 1 to 10: 1 and most preferably from 0.7: 1 to 1.3: 1.
Preferably, the pH of the composition is between 3.5 and 10.
The additional isothiazolinone is preferably chosen from benzisothiazolinone, chloromethylisothiazolinone, 2-methyl-l, 2benzisothiazol-3 (2H) -one and methylisothiazolinone.
Preferably
The additional isothiazolinone is methylisothiazolinone.
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Preferably, the mixture of octylisothiazolinone and additional isothiazolinone is present in an amount of 0.001 to 1% by weight of the composition.
Liquid laundry detergents
The term "laundry detergent" in the context of the present invention refers to formulated compositions intended for, and capable of, wetting and cleaning household linen such as clothing, bedding and other household textiles. The term "bedding" is often used to describe certain types of laundry items, including sheets, pillow cases, towels, tablecloths, napkins and work clothes. Textiles can include woven fabrics, non-woven fabrics and knitted fabrics; and can include natural or synthetic fibers such as silk fibers, linen fibers, cotton fibers, polyester fibers, polyamide fibers such as nylon, acrylic fibers, acetate fibers and blends thereof, including blends of cotton and polyester.
Examples of liquid laundry detergents include strong liquid laundry detergents for use in the washing cycle of automatic washing machines, as well as delicate and color washing liquid detergents such as those suitable for washing clothes delicate (e.g. those made of silk or wool) or by hand, or during the washing cycle of automatic washing machines.
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The term "liquid" in the context of the present invention indicates that a continuous phase or that a predominant part of the composition is liquid and that the composition can flow at 15 ° C and above.
Consequently, the term "liquid" can include emulsions, suspensions, and compositions having a fluid but still rigid consistency, known as gels or pastes. The viscosity of the composition can suitably be in the range of about 200 to about 10,000 mPa.s at 25 ° C at a shear rate of 21 s ^-1 . This shear rate is the shear rate which is usually exerted on the liquid when it is poured from a bottle. Liquid pourable detergent compositions generally have a viscosity of 200 to 1,500 mPa.s, preferably 200 to 500 mPa.s.
Liquid detergent compositions which are pourable gels generally have a viscosity ranging from 1,500 mPa.s to 6,000 mPa.s, preferably from 1,500 mPa.s to 2,000 mPa.s.
A composition according to the invention may suitably have an aqueous continuous phase. By continuous aqueous phase is meant a continuous phase based on water. Compositions having an aqueous continuous phase will generally comprise from 15 to 95%, preferably from 20 to 90%, more preferably from 25 to 85% of water (by weight based on the total weight of the composition).
A composition according to the invention can also have a low water content, for example
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BE2019 / 5497 when the composition is intended to be packaged in a polymer film soluble in washing water. Low water compositions will generally not include more than 20%, and preferably not more than 10%, such as 5-10% water (by weight based on the total weight of the composition).
The composition of the invention has a pH in the range of 6 to 8.5, more preferably 6.5 to 8, when measured with a 1% dilution of the composition using water demineralized.
A composition of the invention suitably comprises from 1 to 60%, preferably from 1.5 to 40%, and more preferably from 2 to 30% (by weight relative to the total weight of the composition) of one or more detersive surfactants chosen from soap-free anionic surfactants, nonionic surfactants and mixtures thereof.
The term “detersive surfactant” in the context of the present invention designates a surfactant which provides a detersive (ie cleaning) effect to laundry treated in the context of a household laundry process.
Anionic surfactants without soap to be used in the invention are typically salts of organic sulfates and sulfonates having alkyl radicals containing from about 8 to about 22 carbon atoms, the term "alkyl" being used to include the alkyl part of radicals upper acyl. Examples of such materials include alkyl sulfates, alkyl ether sulfates, alkarylsulfonates, alphaolefinsulfonates and mixtures thereof. The
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BE2019 / 5497 alkyl radicals preferably contain from 10 to 18 carbon atoms and can be unsaturated. The alkyl ether sulfates can contain from one to ten ethylene oxide or propylene oxide units per molecule, and preferably contain from one to three ethylene oxide units per molecule. The counter ion for anionic surfactants is generally an alkali metal such as sodium or potassium; or an ammoniacal counter ion such as monoethanolamine (MEA), diethanolamine (DEA) or triethanolamine (TEA). Mixtures of such counterions can also be used.
A preferred class of anionic soap-free surfactant for use in the invention includes alkylbenzene sulfonates, in particular linear alkylbenzene sulfonates (LAS) with an alkyl chain length of 10 to 18 carbon atoms. A commercial LAS is a mixture of isomers and closely related homologues, alkyl chain homologues, each containing a sulfonated aromatic ring in the "para" position and attached to a linear alkyl chain in any position, except terminal carbons. The linear alkyl chain typically has a chain length of 11 to 15 carbon atoms, the predominant materials having a chain length of about C12. Each alkyl chain homolog consists of a mixture of all possible sulfophenyl isomers, with the exception of the 1phenyl isomer. A LAS is normally formulated in compositions in acid form (that is to say HLAS), then at least partially neutralized in situ.
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Also suitable are alkyl ether sulfates having a straight or branched chain alkyl group having 10 to 18, more preferably 12 to 14 carbon atoms and containing an average of 1 to 3 EO units per molecule. A preferred example is sodium lauryl ether sulfate (SLES) in which the mainly C12 laurylalkyl group has been ethoxylated with an average of 3 EO units per molecule.
Certain alkyl sulfate surfactants (PAS) can be used, such as primary and secondary alkyl sulfates which are not ethoxylated with an alkyl chain length of 10 to 18.
Mixtures of any of the materials described above can also be used.
In a composition of the invention, the total content of anionic surfactant can be in the range from 0 to 15% by weight based on the total weight of the composition. However, it is preferred that the total content of anionic surfactant is between 2 and 15% by weight, more preferably between 2 and 10% by weight, particularly preferably between 3 and 8% by weight of the composition.
Nonionic surfactants to be used in the invention are typically polyoxyalkylene compounds, i.e. the reaction product of alkylene oxides (such as ethylene oxide or propylene oxide or mixtures thereof) with initiator molecules having a hydrophobic group and a reactive hydrogen atom which is reactive with alkylene oxide. These priming molecules include
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BE2019 / 5497 alcohols, acids, amides or alkylphenols. When the initiator molecule is an alcohol, the reaction product is known as an alcohol alkoxylate. Polyoxyalkylene compounds can have a variety of block and heteric (random) structures. For example, they can comprise a single block of alkylene oxide, or they can be diblock alkoxylates or triblock alkoxylates. In block structures, the blocks may consist entirely of ethylene oxide or propylene oxide, or the blocks may contain a heteric mixture of alkylene oxides. Examples of such materials include C5 to C22 alkylphenolethoxylates with an average of 5 to 25 moles of ethylene oxide per mole of alkylphenol; and aliphatic alcohol ethoxylates such as linear or branched alcohol ethoxylates, primary or secondary Cs to Cis, with an average of 2 to 40 moles of ethylene oxide per mole of alcohol.
A preferred class of nonionic surfactant for use in the invention includes primary linear C 1 to C 8 aliphatic alcohol ethoxylates, more preferably C 12 to C 15, with an average of 3 to 20, more preferably 5 10 moles of ethylene oxide per mole of alcohol.
Another class of nonionic surfactants include alkylpolyglycosides and rhamnolipids.
Mixtures of any of the materials described above can also be used. Preferably, the total level of surfactant in the composition is between 10 and 30% by weight of the composition.
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In a composition of the invention, the total level of nonionic surfactant will preferably be between 10 and 25% (by weight based on the total weight of the composition).
Raw materials from sustainable sources.
It will be understood that a large number of the materials described can be obtained from numerous sources. It is preferred that the materials described are obtained from sustainable sources, in particular avoiding the use of what is called black carbon, and using green carbon instead. Some of the methods that can be used to obtain these materials are described below. Others also exist.
Alcohol ethoxylate surfactants
SLES and other such anionic alkali metal alkyl ether sulfate surfactants can typically be obtained by sulfating alcohol ethoxylates. These alcohol ethoxylates can typically be obtained by ethoxylating linear alcohols. Similarly, primary alkyl sulfate surfactants (PAS) can be obtained from linear alcohols directly by sulfation of linear alcohol. Consequently, the formation of linear alcohol is a central step in obtaining both PAS surfactants and alkali metal alkyl ether sulfate.
Linear alcohols which are suitable as an intermediate stage in the manufacture of alcohol ethoxylates and therefore of anionic surfactants such as sodium laurylethersulfate as well as surfactants
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BE2019 / 5497 nonionic APG, etc. can be obtained from many different sustainable sources. These include:
Primary sugars
Primary sugars are obtained from cane sugar or sugar beet, etc., and can be fermented in bioethanol. The bioethanol is then dehydrated to form bio-ethylene which can then be converted to olefins by processes such as the Shell Superior Olefin Process (SHOP) or the Chevron Phillips Full Range Process. These alkenes can then be transformed into linear alcohols by hydroformylation, followed by hydrogenation.
Alternatively, ethylene can be converted directly to fatty alcohol via the Ziegler process.
An alternative process also using primary sugars to form linear alcohols can be used and in which the primary sugar undergoes microbial conversion by algae to form triglycerides. These triglycerides are then hydrolyzed to linear fatty acids which are then reduced to form linear alcohols.
Biomass
Biomass, for example forest products, rice husks and straw, to name a few, can be transformed into syngas [gas] by gasification. By a Fischer Tropsch reaction, these are transformed into alkanes, which are in turn dehydrogenated to form olefins. These olefins can be processed from the
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An alternative process transforms the same biomass into polysaccharides by explosion of vapor which can be degraded enzymatically into secondary sugars. These secondary sugars are then fermented to form bioethanol which is in turn dehydrated to form bio-ethylene. This bio-ethylene is then transformed into linear alcohols as described above [rimary sugars].
Plastic waste
Plastic waste is pyrolyzed to form pyrolysis oil. This is then fractionated to form linear alkanes which are dehydrogenated to form alkenes. These alkenes are treated as described above [rimary sugars].
Alternatively, the pyrolyzed oils are cracked to form ethylene which is then treated to form the required alkenes by the same methods as those described above in [rimary sugars]. The alkenes are then transformed into linear alcohols as described above [rimary sugars].
MSW (Household Garbage)
MSWs are transformed into synthesis gas by gasification. From synthesis gas, it can be transformed into alkanes as described above [Biomass] or converted into ethanol by enzymatic processes (for example, the Lanzatech process) before being dehydrogenated to ethylene. Ethylene can then
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BE2019 / 5497 be transformed into linear alcohols by the methods described above [rimary sugars].
Syngas can also be converted to methanol and then to ethylene. At this point, the processes described in [rimary sugars] convert it to the final fatty alcohol.
MSW can also be transformed into pyrolysis oil by gasification, then fractionated to form alkanes. These alkanes are then dehydrogenated to form olefins, then linear alcohols.
Likewise, the organic fraction of MSW contains polysaccharides which can be broken down enzymatically into sugars. At this point, they can be
fermented in ethanol, dehydrated to ethylene and converted in fatty alcohol via described routes this- above. Marine carbonThere are various sources of carbon from of marine flora, such as Algae and
kelp. From this marine flora, the triglycerides can be separated from the source and are then hydrolyzed to form fatty acids which are reduced to linear alcohols in the usual way.
Alternatively, the raw material can be separated into polysaccharides which are degraded enzymatically to form secondary sugars. These can be fermented to form bioethanol and then processed as described above [Primary Sugars].
Waste oils
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Used oils such as used cooking oil can be physically separated into triglycerides which are split to form linear fatty acids and then into linear alcohols as described above.
Alternatively, the used cooking oil can be subjected to the Neste Process, so that the oil is catalytically cracked to form bio-ethylene. This is then processed as described above [rimary sugars].
Methane capture
Methane capture methods capture methane from landfills, anaerobic digestion, or fossil fuel production. Methane can be transformed into synthesis gas by steam reforming. The synthesis gas can then be treated as described by any of the methods described above.
As a variant, the synthesis gas can be transformed into alkanes and then into olefins by the Fischer Tropsch process and then by dehydrogenation.
Carbon capture
Carbon dioxide can be captured by any of a variety of methods which are well known. Carbon dioxide can be transformed into carbon monoxide by a reverse reaction of gas to water which can in turn be transformed into synthesis gas by combining it with hydrogen gas formed by electrolysis of water to produce hydrogen gas. The synthesis gas is then treated as
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Alternatively, the captured carbon dioxide is mixed with hydrogen gas before being treated enzymatically to form ethanol. It is a process that was developed by Lanzatech. At this point, the ethanol is transformed into ethylene then transformed into olefins, then into linear alcohols as described above.
Captured carbon dioxide can also be used to fuel the CO2 using algae. These algae can convert CO2 to fatty triglycerides or ethanol depending on the type of algae that is used. Triglycerides can be hydrolyzed and converted to useful hydrocarbons by the same processes as those described in [Marine Carbon and Waste Oils]. Ethanol can be treated according to the methods described in [rimary sugars].
Finally, CO2 can be converted biologically to bio-acetaldehyde using H2 generated by electrolysis. Acetaldehyde can then be
converted by methods chemical classics in useful hydrocarbons • THE ACE One of the other main surfactants commonly used in compositions of cleaning,
in particular laundry compositions, is LAS (linear alkylbenzenesulfonate).
The key intermediate in the manufacturing of LAS is the appropriate alkene. These alkenes (olefins) can be produced by one
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While in the process described above, the olefin is treated to form linear alcohols by hydroformylation and oxidation, instead, the olefin is reacted with benzene and then sulfonate to form LAS.
NON-AQUEOUS MEDIA
A composition of the invention can incorporate non-aqueous supports such as hydrotropes, co-solvents and phase stabilizers. These materials are typically organic liquids of low molecular weight, soluble in water or miscible in water, such as monohydric alcohols in C1 to C5 (such as ethanol and n- or i-propanol); C2 to C6 diols (such as monopropylene glycol and dipropylene glycol); C3 to C9 triols (such as glycerol); polyethylene glycols having a weight average molecular weight (M _w ) ranging from about 200 to 600; C1 to C3 alkanolamines such as mono-, di- and triethanolamines; and alkylarylsulfonates having up to 3 carbon atoms in the lower alkyl group (such as xylene, toluene, ethylbenzene and isopropylbenzene (cumene) sodium and potassium sulfonates).
Mixtures of any of the materials described above can also be used.
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Non-aqueous carriers, when included, may be present in an amount ranging from 0.1 to 20%, preferably 1 to 15%, and more preferably 3 to 12% (by weight based of the total weight of the composition).
CQ-SURFACTANTS
A composition of the invention may contain one or more co-surfactants (such as amphoteric (zwitterionic) and / or cationic surfactants) in addition to the anionic and / or nonionic detersive surfactants without soap described above.
Specific cationic surfactants include C8 to C18 alkyldimethylammonium halides and their derivatives, in which one or two hydroxyethyl groups replace one or two of the methyl groups, and mixtures thereof. The cationic surfactant, when included, may be present in an amount ranging from 0.1 to 5% (by weight based on the total weight of the composition).
Specific amphoteric surfactants (zwitterionics) include alkylamine oxides, alkylbetaines, alkylamidopropylbetaines, alkylsulfobetaines (sultaines), alkylglycinates, alkylcarboxyglycinates, about alkylamphopropylates, alkylamphopropylates, alkylamphopropionates, alkylamphopropionates, alkylamphopropylates, alkylamphopropionates, alkylamphopropylates at about 22 carbon atoms, the term "alkyl" being used to include the alkyl portion of higher acyl radicals. A
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BE2019 / 5497 amphoteric (zwitterionic) surfactant, when included, may be present in an amount ranging from 0.1 to 5% (by weight based on the total weight of the composition).
Mixtures of any of the materials described above can also be used.
POLYAMINES
Ethoxylated polyamines (EPEI) are generally linear or branched poly (> 2) amines. The amines can be primary, secondary or tertiary. One or more amine functions are reacted with one or more alkylene oxide groups to form a side chain of polyalkylene oxide. The alkylene oxide can be a homopolymer (for example ethylene oxide) or a random or block copolymer. The end group of the alkylene oxide side chain can be further reacted to give an anionic character to the molecule (for example to give a carboxylic acid or sulfonic acid functionality).
The composition comprises from about 0.01% to about 5% of polyamine. Preferably, the polyamine is a soil release agent comprising a polyamine skeleton corresponding to the formula:
f I [HN-Rh + tlN-RlTrlN-Rh-NHz having a modified polyamine formula V (n + l) WmYnZ, or a polyamine skeleton corresponding to the formula:
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ÎHN-Rfrk + H [to-F3nT-ita RrH ^ Rk-NH "having a modified polyamine formula
V (nk + 1) WmYnY'kZ, where or equal to n
Preferably, the polyamine backbone before modification has a molecular weight greater than about 200 daltons.
Preferably
i) V units are terminal units corresponding to the following formula
E ^— M ^- R— or or he) units
W are skeleton units having the formula or
OR ill) Y units are branching units having the formula:
and
E Xor iv) units
Z are terminal units having the formula:
E X — N — E or or
Preferably the units
Backbone R are selected from the group consisting of alkylene in
C2-C12
- (RIO) xR3 (OR1) X
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BE2019 / 5497 (CH ₂ CH (OR2) CH ₂ O) z (RIO) yRl (OCH ₂ CH (OR2) CH ₂ ) w-,
CH ₂ CH (OR2) CH ₂ - and mixtures thereof, provided that, when R comprises a C1-C12 alkylene, R also comprises at least one unit - (RIO) xR3 (CRI) x-, - (CH ₂ CH (OR2) CH ₂ O) z (RIO) yRl (OCH ₂ CH (OR2) CH ₂ ) w-, or -CH ₂ CH (OR2) CH ₂ -;
Of preferably RI is alkylene in C2-C6 and mixtures of it; Of preferably R2 is an atom hydrogen, (RIO) XB, and mixtures thereof; Of preferably, R3 represents a alkylene in
C1-C12, hydroxyalkylene at C3-C12, dihydroxyalkylene at
C4-C12, C8-C12 dialkylarylene, -C (O) -,
C (O) NHR5NHC (O) -, C (O) (R4) rC (O) -, -CH ₂ CH (OH) CH ₂ O (RIO) yR10CH ₂ CH (OH) CH ₂ -, and mixtures thereof;
Preferably, R4 is C1-C12 alkylene, C4-C12 alkenylene, C8-C12 arylalkylene, C6-C10 arylene, and mixtures thereof;
Preferably, R5 is a C2-C12 alkylene or C6-C12 arylene;
Preferably, units E are chosen from the group consisting of (CH ₂ ) p-CO ₂ M, - (CH ₂ ) qSO ₃ M, CH (CH ₂ CO ₂ M) CO ₂ M, (CH ₂ ) pPO ₃ M, - (RlO) xB, and their mixtures,
Preferably, B is a hydrogen atom, (CH ₂ ) qSO ₃ M, - (CH ₂ ) pCO ₂ M, - (CH ₂ ) g CH (SO ₃ M) CH ₂ SO ₃ M, (CH2) qCH (SO ₂ M) CH ₂ SO ₃ M, - (CH ₂ ) pPO ₃ M, -PO ₃ M, and mixtures thereof,
Preferably, M is a hydrogen atom or a water-soluble cation in an amount sufficient to satisfy a balance of charges;
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Of preference, X is a soluble anion in Water;Of preference, k at the value going of 0 at about 2 0; Of preference, m at the value going of 4 at about 400 r Of preference, not at the value going of 0 at about 200 r Of preference, p a the value ranging from 1 to 6, Of preference, q a the value ranging from 0 to 6 rOf preference, r a the value 0 or 1; Of preference, w a the value 0 or 1; Of preference, X at the value going of 1 100 ;Of preference, y at the value going of 0 100 ; and Of preference, z a the value 0 or 1.
ADDITIVES
A composition of the invention may contain one or more adjuvants. Adjuvants improve or maintain the cleaning efficiency of the surfactant, primarily by reducing the hardness of the water. This is done by sequestration or chelation (maintenance of minerals responsible for hardness in solution), by precipitation (formation of an insoluble substance), or by ion exchange (trading of electrically charged particles).
Adjuvants for use in the invention may be of the organic or inorganic type, or a mixture thereof.
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Suitable inorganic builders include hydroxides, carbonates, sesquicarbonates, bicarbonates, silicates, zeolites, and mixtures thereof. Specific examples of such materials include sodium and potassium hydroxide, sodium and potassium carbonate, sodium and potassium bicarbonate, sodium sesquicarbonate, sodium silicate and mixtures thereof.
Suitable organic adjuvants include polycarboxylates, in acid and / or saline form. When used in saline form, alkali metal (e.g. sodium and potassium) or alkanolammonium salts are preferred. Specific examples of such materials include sodium and potassium citrates, sodium and potassium tartrates, sodium and potassium salts of tartaric acid monosuccinate, sodium and potassium salts of tartaric acid disuccinate , sodium and potassium ethylenediaminetetraacetates, sodium and potassium N (2-hydroxyethyl) -ethylenediamine triacetates, sodium and potassium nitrilotriacetates and sodium and potassium N- (2-hydroxyethyl) nitrilodiacetates. Polymeric polycarboxylates can also be used, such as polymers of unsaturated monocarboxylic acids (for example, acrylic, methacrylic, vinylacetic and crotonic acids) and / or unsaturated dicarboxylic acids (for example, maleic, fumaric, itaconic, mesaconic acids and citraconic and their anhydrides). Specific examples of such materials include an acid
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Mixtures of any of the materials described above can also be used. Preferred adjuvants for use in the invention may be chosen from polycarboxylates (for example citrates) in acid and / or saline form and their mixtures.
The adjuvant, when included, may be present in an amount ranging from about 0.1 to about 20%, preferably from about 0.5 to about 15%, more preferably from about 1 to about 10% (by weight based on the total weight of the composition).
FATTY ACID
A composition of the invention will preferably contain one or more fatty acids and / or their salts.
Fatty acids suitable in the context of the present invention include aliphatic carboxylic acids of formula RCOOH, where R is a linear or branched alkyl or alkenyl chain containing from 6 to 24, more preferably from 10 to 22, most preferably preferred 12 to 18 carbon atoms and 0 or 1 double bond. Preferred examples of such materials include C12-18 saturated fatty acids,
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The fatty acids may be present in the form of their sodium, potassium or ammonium salts and / or in the form of soluble salts of organic bases, such as a mono-, di- or triethanolamine.
Mixtures of any of the materials described above can also be used.
Fatty acids and / or their salts, when included, may be present in an amount ranging from about 0.25 to 5%, more preferably 0.5 to 5%, most preferably from 0.75 to 4% (by weight based on the total weight of the composition).
For formula information purposes, in the formulation, fatty acids and / or their salts (as defined above) are not included in the surfactant content or in the adjuvant content.
POLYMERIC CLEANING AMPLIFIERS
To further improve the environmental profile of liquid laundry detergents, it may be preferred in some cases to reduce the volume of laundry detergent dosed per wash load and to add various ingredients that are very effective in terms of
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Anti-redeposition polymers stabilize soiling in the washing solution, thus preventing redeposition of soiling. Suitable soil release polymers for use in the invention include alkoxylated polyethyleneimines. Polyethyleneimines are materials composed of ethylene imine units -CH2CH2NH- and, when branched, the hydrogen present on the nitrogen is replaced by another chain of ethylene imine units. Preferred alkoxylated polyethyleneimines for use in the invention have a polyethyleneimine backbone of from about 300 to about 10,000 in terms of weight average molecular weight (M _w ). The polyethyleneimine backbone can be linear or branched. It can be branched as long as it is a dendrimer. The alkoxylation can typically be ethoxylation or propoxylation, or a mixture of the two. When a nitrogen atom is alkoxylated, a preferred average degree of alkoxylation is between 10 and 30, preferably between 15 and 25 alkoxy groups by modification. A preferred material is an ethoxylated polyethyleneimine, having an average degree of ethoxylation ranging from 10 to 30, preferably 15
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Mixtures of any of the materials described above can also be used.
When included, a composition of the invention will preferably comprise from 0.25 to 8%, more preferably from 0.5 to 6% (by weight based on the total weight of the composition) of one or more anti-redeposition polymers such as, for example, the alkoxylated polyethyleneimines described above.
SOIL RELEASE POLYMERS
Soil release polymers help improve soil separation from the fabric by changing the surface of the fabric during washing. The adsorption of an SRP onto the tissue surface is promoted by an affinity between the chemical structure of the SRP and the target fiber.
SRPs for use in the invention can include a variety of charged (e.g. anionic) as well as uncharged monomeric units, and the structures can be linear, branched or star-shaped. The SRP structure can also include styling groups to control molecular weight or to modify polymer properties, such as surface activity. The weight average molecular weight (M _w ) of the SRP can be in the range of about 1,000 to about 20,000 and preferably in the range of about 1,500 to about 10,000.
SRPs to be used in the invention can be suitably chosen from copolyesters of dicarboxylic acids (for example acid
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BE2019 / 5497 adipic, phthalic acid or terephthalic acid), diols (for example ethylene glycol or propylene glycol) and polydiols (for example polyethylene glycol or polypropylene glycol). The copolyester can also include monomer units substituted by anionic groups, such as for example sulfonated isophthaloyl units. Examples of such materials include oligomeric esters produced by transesterification / oligomerization of poly (ethylene glycol) methyl ether, dimethyl terephthalate ("DMT"), propylene glycol ("PG") and poly (ethylene glycol) (" PEG ”); partially and fully anionic terminal cap oligomer esters such as ethylene glycol ("EG"), PG, DMT and Na-3,6-dioxa-8-hydroxyoctanesulfonate oligomers; polyester oligomeric compounds with nonionic capped blocks, such as those produced from DMT, PEG and EG and / or PG capped with Me, or a combination of DMT, EG and / or PG, PEG capped with Me and Na-dimethyl-5sulfoisophthalate, and copolymer blocks of ethylene terephthalate or propylene terephthalate with polyethylene oxide or polypropylene oxide terephthalate.
Other types of SRP for use in the invention include cellulose derivatives such as hydroxyethercellulose polymers, C1-C4 alkylcelluloses and C4 hydroxyalkylcelluloses; polymers with hydrophobic segments of polyvinyl ester such as graft copolymers of polyvinyl ester, for example C1-C8 vinyl esters (such as polyvinyl acetate)
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BE2019 / 5497 grafted onto polyalkylene oxide skeletons; poly (vinyl caprolactam) and copolymers associated with monomers such as vinylpyrrolidone and / or dimethylaminoethyl methacrylate; and polyester-polyamide polymers prepared by condensation of adipic acid, caprolactam, and polyethylene glycol.
Preferred SPRs for use in the invention include copolyesters formed by condensation of terephthalic acid ester and diol, preferably 1,2-propanediol, and further comprising an end cap formed of repeating units of alkylene oxide capped with an alkyl group. Examples of such materials have a structure corresponding to the general formula (I):
2 or R and R, independently of each other, are X- (OC2H4) n- (OC ₃ H ₆ ) _m ;
where X is a alkyl in C1-4 and preferably a methyl;n is a number going from 12 to 120, of preferably 40 to 50 r m is a number going from 1 to 10, of preferably 1 to 7; and
a is a number from 4 to 9.
Since these are averages, m, n and a are not necessarily whole numbers for the bulk polymer.
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Mixtures of any of the materials described above can also be used.
The overall level of SRP, when included, can range from 0.1 to 10%, preferably 0.3 to 7%, more preferably 0.5 to 5% (by weight based on total weight of the composition).
Suitable soil release polymers are described in more detail in U.S. Patents 5,574,179; 4,956,447; 4,861,512; 4,702,857, W02007 / 079850 and WO2016 / 005271. If used, soil release polymers will typically be incorporated into liquid laundry detergent compositions at concentrations ranging from 0.01% to 10%, more preferably 0.1% to 5%, by weight of the composition.
POLYMERIC THICKENERS
A composition of the invention may comprise one or more polymeric thickeners. Suitable polymeric thickeners for use in the invention include hydrophobically modified alkali (HASE) emulsion copolymers. Example HASE copolymers for use in the invention include linear or crosslinked copolymers which are prepared by polymerization by the addition of a mixture of monomers including at least one vinylic acid monomer, such as (meth) acrylic acid (c ' i.e. methacrylic acid and / or acrylic acid); and at least one associative monomer. The term "associative monomer" in the context of the present invention denotes a
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BE2019 / 5497 monomer having an ethylenically unsaturated section (for addition polymerization with the other monomers of the mixture) and a hydrophobic section. A preferred type of associative monomer includes a polyoxyalkylene section between the ethylenically unsaturated section and the hydrophobic section. Preferred HASE copolymers for use in the invention include linear or crosslinked copolymers which are prepared by addition polymerization ((meth) acrylic acid with (i) at least one associative monomer selected from polyethoxylated (meth) acrylates of alkyl linear or branched Cg-C-jo (preferably linear C12-C22 alkyl); and (ii) at least one other monomer chosen from C1-C4 alkyl (meth) acrylates, polyacid vinyl monomers (such as maleic acid, maleic anhydride and / or their salts) and their mixtures. The polyethoxylated part of the associative monomer (i) generally comprises about 5 to about 100, preferably about 10 to about 80, and more preferably about 15 to about 60 repeating units of oxyethylene.
Mixtures of any of the materials described above can also be used.
When included, a composition of the invention will preferably comprise from 0.1 to 5% (by weight based on the total weight of the composition) of one or more polymeric thickeners such as, for example, the HASE copolymers described above.
FLUORESCENT AGENTS
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It may be advantageous to include a fluorescent agent in the compositions. Usually these fluorescent agents are supplied and used in the form of their alkali metal salts, for example sodium salts. The total amount of the fluorescent agent or agents used in the composition is generally from 0.005 to 2% by weight, more preferably from 0.01 to 0.5% by weight.
Preferred classes of fluorescent agent are: biphenyl di-styryl compounds, for example Tinopal (Trademark) CBS-X, diamine stilbene di-sulfonic acid compounds, for example Tinopal DMS pure Xtra, Tinopal 5BMGX and Blankophor ( Trademark) HRH, and pyrazoline compounds, for example Blankophor SN.
Preferred fluorescent agents are: sodium 2 (4-styryl-3-sulfophenyl) -2H-naphthol [1,2-d] triazole, 4,4'-bis {[(4-anilino-6- (N methyl-N-2 hydroxyethyl) amino 1,3,5-triazin-2-yl)] amino} stilbene-
2-2 'disodium disulfonate, 4,4'-bis {[((4-anilino-6morpholino-1,3,5-triazin-2-yl)] amino} stilbene-22' disodium disulfonate and 4,4 '-bis (2sulfoslyryl) disodium biphenyl.
COLORING DYES
A shading dye can be used to improve the performance of the compositions. Preferred dyes are purple or blue. It is assumed that the deposition on fabrics of a low level of a dye of these shades masks the yellowing of the fabrics. Another benefit of shading dyes is
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BE2019 / 5497 they can be used to mask any yellow tint in the composition itself.
Suitable and preferred classes of dyes are discussed below.
Direct dyes:
Direct dyes (otherwise known as substantive dyes) belong to the class of water-soluble dyes which have an affinity for fibers and which are absorbed directly. Direct purple and direct blue dyes are preferred.
Preferably, bisazo or tris-azo dyes are used.
Most preferably, the direct dye is a direct violet having the following structures:
NaO ₃ S or
or :
rings D and E can independently be naphthyl or phenyl, as represents;
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RI is chosen from: a hydrogen atom and a C1-C4 alkyl, preferably a hydrogen atom;
R2 is chosen from: a hydrogen atom, C1-C4 alkyl, substituted or unsubstituted phenyl and substituted or unsubstituted naphthyl, preferably a phenyl group;
R3 and R4 are independently chosen from: a hydrogen atom and a C1-C4 alkyl, preferably a hydrogen atom or a methyl;
X and Y are independently selected from: a hydrogen atom, C1-C4 alkyl and C1-C4 alkoxy; preferably, the dye has X = methyl; and Y = methoxy and n is 0, 1 or 2, preferably 1 or 2.
Preferred dyes are direct violet 7, direct violet 9, direct violet 11, direct violet 26, direct violet 31, direct violet 35, direct violet 40, direct violet 41, direct violet 51, and direct violet 99. Dyes containing bis-azo copper, for example, direct violet 66, can be used. Benzidene-based dyes are less preferred.
Preferably, the direct dye is present in an amount of 0.000001 to 1% by weight, more preferably from 0.00001% by weight to 0.0010% by weight of the composition.
In another embodiment, the direct dye can be covalently bonded to the photo-bleaching agent, for example as described in document WO2006 / 024612.
Acid dyes:
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Cotton acidic dyes provide benefits to cotton-containing garments. Preferred dyes and dye mixtures are blue or purple. Preferred acid dyes are:
(i) azine dyes, in which the dye has the following central structure:
NOT.
where R _a , Rb, R _c and Rd are chosen from: H a branched or linear C1 to C7 alkyl chain, a benzyl, a phenyl, and a naphthyl;
the dye is substituted by at least one SO ₃ - or -COO group;
cycle B does not carry a negatively charged group or a salt thereof; and ring A may further be substituted to form naphthyl; the dye is optionally substituted by groups chosen from: amine, methyl, ethyl, hydroxyl, methoxy, ethoxy, phenoxy, Cl, Br, I, F, and NO ₂ .
Preferred azine dyes are:
acid blue 98, acid purple 50, and acid blue 59, more preferably acid purple 50 and acid blue 98.
Other preferred non-azine acid dyes are acid purple 17, acid black 1 and acid blue 29.
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Preferably, the acid dye is present in an amount of 0. 0005% by weight to 0.01% by weight of the formulation.
Hydrophobic dyes:
The composition may comprise one or more hydrophobic dyes chosen from benzodifurans, methine, triphenylmethanes, naphthalimides, pyrazole, naphthoquinone, anthraquinone and chromophores of mono-azo or di-azo dye. Hydrophobic dyes are dyes that do not contain any charged water-solubilizing groups. Hydrophobic dyes can be chosen from the groups of dispersion and solvent dyes. Blue and purple anthraquinone and a mono-azo dye are preferred.
Preferred dyes include the violet solvent 13, dispersed violet 27, dispersed violet 26, dispersed violet 28, dispersed violet 63 and dispersed violet 77.
Preferably, the hydrophobic dye is present in an amount of 0.0001% by weight to 0.005% by weight of the formulation.
Basic dyes:
Basic dyes are organic dyes that carry a net positive charge. They are deposited on cotton. They are particularly useful for use in a composition containing mainly cationic surfactants. Dyes can be chosen from the basic purple and blue dyes listed in the Colors International index.
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Preferred examples include basic triarylmethane dyes, basic methane dyes, basic anthraquinone dyes, basic blue 16, basic blue 65, basic blue 66, basic blue 67, basic blue 71, blue basic 159, basic violet 19, basic violet 35, basic violet 38, basic violet 48; basic blue 3, basic blue 75, basic blue 95, basic blue 122, basic blue 124, basic blue 141.
Reactive dyes:
Reactive dyes are dyes which contain an organic group capable of reacting with the cellulose and binding the dye to the cellulose with a covalent bond. They are deposited on cotton.
Preferably, the reactive group is hydrolyzed or the reactive group of dyes has been reacted with an organic species, for example a polymer, in order to bind the dye to this species. Dyes can be chosen from the purple and blue reactive dyes listed in the International Colors index.
Preferred examples include reactive blue 19, reactive blue 163, reactive blue 182 and reactive blue 96.
Dye conjugates:
Dye conjugates are formed by binding direct, acidic or basic dyes to polymers or particles via physical forces. Depending on the choice of polymer or particle, they
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BE2019 / 5497 deposit on cotton or synthetic materials. A description is given in document W02006 / 055787.
Particularly preferred dyes are: direct violet 7, direct violet 9, direct violet 11, direct violet 26, direct violet 31, direct violet 35, direct violet 40, direct violet 41, direct violet 51 , direct violet 99, acid blue 98, acid violet 50, acid blue 59, acid violet 17, acid black 1, acid blue 29, solvent violet 13, dispersed violet 27, dispersed violet 26 , dispersed violet 28, dispersed violet 63, dispersed violet 77 and mixtures thereof.
The shading dye can be used in the absence of a fluorescent agent, but it is particularly preferred to use a shading dye in combination with a fluorescent agent, for example to reduce yellowing due to chemical modifications of the agent fluorescent adsorbed.
EXTERNAL STRUCTURANTS
Compositions of the invention may have their rheology further modified by the use of one or more external structuring agents which form a structuring network within the composition. Examples of such materials include hydrogenated castor oil, microfibrous cellulose and citrus pulp fiber. The presence of an external structuring agent can provide a shear thinning rheology and can also allow materials such as encapsulations and visual cues to be suspended in a stable manner in the liquid.
ENZYMES
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A composition of the invention may comprise an effective amount of one or more enzymes chosen from the group comprising pectate lyase, protease, amylase, cellulase, lipase, mannanase and mixtures thereof. The enzymes are preferably present with corresponding enzyme stabilizers.
PERFUMES
Examples of fragrance components include aromatic, aliphatic and araliphatic hydrocarbons having molecular weights of from about 90 to about 250; aromatic, aliphatic and araliphatic esters having molecular weights of from about 130 to about 250; aromatic, aliphatic and araliphatic nitriles having molecular weights of from about 90 to about 250; aromatic, aliphatic and araliphatic alcohols having molecular weights of from about 90 to about 240; aromatic, aliphatic and araliphatic ketones having molecular weights of from about 150 to about 270; aromatic, aliphatic and araliphatic lactones having molecular weights of about 130 to about 290; aromatic, aliphatic and araliphatic aldehydes having molecular weights of from about 90 to about 230; aromatic, aliphatic and araliphatic ethers having molecular weights of from about 150 to about 270; and condensation products of aldehydes and amines having molecular weights of about 180 to about 320.
Specific examples of fragrance components for use in the invention include:
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i) hydrocarbons, such as, for example, D-limonene, 3-carene, a-pinene, β-pinene, a-terpinene, γ-terpinene, p-cymene, bisabolene, camphene, caryophyllene, cedrene, famesene, longifolene , myrcene, ocimene, valencene, (E, Z) -1,3,5-undecatriene, styrene and diphenylmethane;
ii) aliphatic and araliphatic alcohols, such as, for example, benzyl alcohol, 1-phenylethyl alcohol, 2phenylethyl alcohol, 3-phenylpropanol, 2-phenylpropanol, 2phenoxyethanol, 2,2-dimethyl-3-phenylpropanol , 2,2dimethyl-3- (3-methylphenyl) propanol, 1,1dimethyl-2-phenylethyl alcohol, 1,1-dimethyl-3phenylpropanol, l-ethyl-l-methyl-3-phenylpropanol, 2methyl-5-phenylpentanol, 3 -methyl-5-phenylpentanol, 3phenyl-2-propen-l-ol, 4-methoxybenzyl alcohol, l- (4isopropylphenyl) ethanol, hexanol, octanol, 3octanol, 2,6 dimethylheptanol, 2-methyl-2-heptanol, 2methyl- 2-octanol, (E) -2-hexenol, (E) - and (Z) —3— hexenol, l-octene-3-ol, a mixture of 3,4,5,6,6pentamethyl-3 / 4- hepten-2-ol and 3,5,6,6-tetramethyl-4methyleneheptan-2-ol, (E, Z) -2,6-nonadienol, 3,7dimethyl-7-methoxyoctane-2-ol, 9-decenol, 10-undecenol and 4-methyl-3-decen-5-ol;
ill) cyclic and cycloaliphatic alcohols, such as, for example, 4-tertbutylcyclohexanol, 3,3,5-trimethylcyclohexanol, 3isocamphylcyclohexanol, 2,6,9-trimethyl-Z2, Z5, E9cyclododécatrien-l-ol, 2-isobutyl- 4-methyltetrahydro-2Hpyran-4-ol, alpha, 3,3-trimethylcyclo-hexylmethanol, 2methyl-4- (2,2,3-trimethyl-3-cyclopent-1-yl) butanol, 2
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BE2019 / 5497 methyl-4- (2,2,3-trimethyl-3-cyclopent-1-yl) -2-buten-lol, 2-ethyl-4- (2,2,3-trimethyl-3-cyclopent- l-yl) -2buten-l-ol, 3-methyl-5- (2,2,3-trimethyl-3-cyclopent-lyl) -pentan-2-ol, 3-methyl-5- (2,2, 3-trimethyl-3cyclopent-1-yl) -4-penten-2-ol, 3,3-dimethyl-5- (2,2,3trimethyl-3-cyclopent-1-yl) -4-penten-2-ol , 1- (2,2,6trimethylcyclohexyl) pentan-3-ol, and 1- (2,2,6trimethylcyclohexyl) hexan-3-ol;
iv) aliphatic aldehydes and their acetals, such as, for example, hexanal, heptanal, octanal, nonanal, decanal, undecanal, dodecanal, tridecanal, 2-methyloctanal, 2-methylnonanal, 2methylundecanal, (E) -2-hexenal, ( Z) -4-heptenal, 2,6dimethyl-5-heptenal, 10-undecenal, (E) -4-decenal, 2dodecenal, 2,6,10-trimethyl-5,9-undecadienal, heptanaldiethylacetal, 1, l-dimethoxy -2,2,5-trimethyl-4-hexene, and citronellyle oxyacetaldehyde;
v) aliphatic ketones and their oximes, such as, for example, 2-heptanone, 2-octanone, 3octanone, 2-nonanone, 5-methyl-3-heptanone, 5methyl-3-heptanone oxime, and 2,4, 4,7-tetramethyl-6-octene-3one;
vi) aliphatic sulfur compounds, such as, for example, 3-methylthiohexanol, 3methylthiohexyl acetate, 3-mercaptohexanol, 3mercaptohexyl acetate, 3-mercaptohexyl butyrate, 3-acetylthiohexyl acetate, and l-mentiol;
vi) aliphatic nitriles, such as, for example, 2-nonenenitrile, 2-tridecenitrile, 2.12 tridecenitrile, 3,7-dimethyl-2,6-octadienenitrile and 3,7-dimethyl-6-octenenitrile;
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BE2019 / 5497 viii) aliphatic carboxylic acids and their esters, such as, for example, (E) - and (Z) —3— hexenylformate, ethyl acetoacetate, isoamyl acetate, hexyl acetate, acetate of 3 , 5,5 trimethylhexyl, 3-methyl-2-butenyl acetate, (E) -2-hexenyl acetate, (E) - and (Z) -3-hexenyl acetate, octyl acetate, 3-octyl acetate , 1octene-3-yl acetate, ethyl butyrate, butyl butyrate, isoamyl butyrate, hexylbutyrate, (E) and (Z) -3-hexenyl isobutyrate, hexyl crotonate, ethylisovalerate, ethyl pentanoate -2-methyl, ethyl hexanoate, allyl hexanoate, ethyl heptanoate, allyl heptanoate, ethyl octanoate, ethyl- (E, Z) -2,4decadienoate, methyl-2-octinate, methyl- 2-noninate, allyl-2-isoamyl oxyacetate and methyl-3,7-dimethyl2, 6-octadienoate;
lx) acyclic terpene alcohols, such as for example citronellol; geraniol; nerol; linalool; lavandulol; nerolidol; farnesol; tetrahydrolinalool; tetrahydrogeraniol; 2,6-dimethyl7-octen-2-ol; 2,6-dimethyloctan-2-ol; 2-methyl-6methylene-7-octen-2-ol; 2,6-dimethyl-5,7-octadiene-2ol; 2,6-dimethyl-3,5-octadiene-2-ol; 3,7-dimethyl-4,6octadiene-3-ol; 3,7-dimethyl-1,5,7-octatrien-3-ol, 2,6dimethyl-2,5,7-octatrien-1-ol; as well as formates, acetates, propionates, isobutyrates, butyrates, isovalerates, pentanoates, hexanoates, crotonates, tiglinates and 3-methyl-2-butenoates thereof;
x) acyclic terpene aldehydes and ketones, such as, for example, geranial, neral, citronellal, 7-hydroxy-3,7-dimethyloctanal, 7-methoxy-
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3,7-dimethyloctanal, 2,6,10-trimethyl-9-undecenal, αsinensal, ß-sinensal, geranylacetone, as well as the geranial, mineral and 7-hydroxy-3,7-dimethyloctanal dimethyl- and diethylacetals;
xi) cyclic terpene alcohols, such as, for example, menthol, isopulegol, alpha-terpineol, terpinene-4-ol, menthan-8-ol, menthan-l-ol, menthan-7ol, bomeol, isoborneol, linalool oxide , nopol, cedrol, ambrinol, vetiverol, guaiol and the formates, acetates, propionates, isobutyrates, butyrates, isovalerates, pentanoates, hexanoates, crotonates, tiglinates and alpha-terpineol 3-methyl-2-butenoates, terpinen-4-ol , 4-ol methan-8-ol, methan-1-ol, methan-7ol, borneol, isoborneol, linalool oxide, nopol, cedrol, ambrinol, vetiverol and guaiol;
xii) aldehydes and cyclic terpene ketones, such as, for example, menthone, isomenthone, 8-mercaptomenthan-3-one, carvone, camphor, fenchone, α-ionone, ß-ionone, α-n-methylionone, ß- nmethylionone, α-isomethylionone, β-isomethylionone, alpha-irone, α-damascone, ß-damascone, β-damascenone, δdamascone, γ-damascone, 1- (2,4,4-trimethyl-2cyclohexene-l-yl) - 2-butene-1-one, 1,3,4,6,7,8ahexahydro-1,1,5,5-tetramethyl-2H-2,4a-methanonaphthalene8 (5H) -one, nootkatone, dihydronootkatone and cedrylmethyl ketone;
xiii) cyclic and cycloaliphatic ethers, such as, for example, cineole, methyl cedryl ether, methyl cyclododecyl ether, (ethoxymethoxy) cyclododecane; epoxy alphacedrene, 3a, 6,6,9a2019 / 5497
BE2019 / 5497 tetramethyldodecahydronaphto [2,1-b] furan, 3a-ethyl6,6,9a-trimethyldodecahydronaphto [2,1-b] furan, 1,5,9trimethyl-13-oxabicyclo [10.1.0] -trideca-4, 8-diene, rose oxide and 2- (2,4-dimethyl-3-cyclohexen-1-yl) -5methyl-5- (1-methylpropyl) -1,3-dioxane;
xiv) cyclic ketones, such as, for example, 4-tert-butylcyclohexanone, 2,2,5-trimethyl-5pentylcyclopentanone, 2-heptylcyclopentanone, 2pentylcyclopentanone, 2-hydroxy-3-methyl-2-cyclopentene1-one, 3- methyl-cis-2-pentene-1-yl-2-cyclopentene-1one, 3-methyl-2-pentyl-2-cyclopentene-l-one, 3-methyl-4cyclopentadecenone, 3-methyl-5-cyclopentadecenone, 3methylcyclopentadecanone, 4- (1-ethoxyvinyl) -3,3,5,5tetramethylcyclohexanone, 4-tert-pentylcyclohexanone, 5cyclohexadecene-l-one, 6,7-dihydro-l, 1,2,3,3pentamethyl-4 (5H) -indanone , 5-cyclohexadecene-1-one, 8cyclohexadecene-1-one, 9-cycloheptadecene-1-one and cyclopentadecanone;
xv) aldehydes and cycloaliphatic ketones, such as, for example, 2,4-dimethyl-
3-cyclohexene carbaldehyde, 2-methyl-4- (2,2,6-trimethylcyclohexene-1-yl) -2-butenal, 4- (4-hydroxy-4methylpentyl) -3-cyclohexene carbaldehyde, 4- (4-methyl -3pentene-1-yl) -3-cyclohexene carbaldehyde, 1- (3,3- dimethylcyclohexyl) -4-pentene-1-one, 1- (5,5-dimethyl-lcyclohexene-1-yl) -4-pentene -l-one, 2,3,8,8-tetramethyl1,2,3,4,5,6,7,8-octahydro-2-naphthalenyl methyl ketone, methyl-2,6,10-trimethyl-2, 5,9-cyclododecatrienyl ketone and tert-butyl- (2,4-dimethyl-3-cyclohexene-1-yl) ketone;
xvi) esters of cyclic alcohols, such as, for example, 2-tert-butylcyclohexyl acetate, acetate
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BE2019 / 5497 4-tert-butylcyclohexyl, 2-tertpentylcyclohexyl acetate, 4-tert-pentylcyclohexyl acetate, decahydro-2-naphthyl acetate, 3pentyltetrahydro-2H-pyran-4-yl acetate, decahydro2,5 acetate 5,8a-tetramethyl-2-naphthyl, 4,7-methano3a acetate, 4,5,6,7,7a-hexahydro-5 or 6-indenyl, 4,7-methano-3a propionate, 4,5, 6,7,7a-hexahydro-5 or 6indenyl, 4,7-methano-3a, 4,5,6,7,7a hexahydro-5 or 6indenyl-isobutyrate and acetate of 4,7-methanooctahydro-5 or 6-indenyl ;
xvii) esters of cycloaliphatic carboxylic acids, such as, for example, allyl 3-cyclohexylpropionate, allyl cyclohexyl oxyacetate, methyl dihydrojasmonate, methyl jasmonate, methyl 2hexyl-3-oxocyclopentanecarboxylate, 2-ethyl-
Ethyl 6,6-dimethyl-2-cyclohexenecarboxylate, ethyl 2,3,6,6tetramethyl-2-cyclohexenecarboxylate and ethyl 2-methyl-1,3-dioxolane-2-acetate;
xviii) esters of araliphatic alcohols and aliphatic carboxylic acids, such as, for example, benzyl acetate, benzyl propionate, benzyl isobutyrate, benzyl isovalerate, 2-phenylethyl acetate, 2-phenylethyl propionate, isobutyrate of 2-phenylethyl, 1phenylethyl acetate, a-trichloromethylbenzyl acetate, a, a-dimethylphenylethyl acetate, a, adimethylphenylethyl butyrate, 2-phenoxyethyl isobutyrate and 4-methoxybenzyl acetate;
xix) araliphatic ethers and their acetals, such as, for example, 2-phenylethyl methyl ether, 2-phenylethyl isoamyl ether, 2- ether
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BE2019 / 5497 phenyethyl cyclohexyl, 2-phenyethyl-lethoxyethyl ether, phenylacetaldehyde dimethyl acetal, phenylacetaldehyde diethyl acetal, 2phenylpropionaldehyde dimethyl acetal, phenylacetaldehyde glycerol acetal, 2,4,6-trimethyl-4,4-phenane-4,4-phenyl-4,4 5.9b-tetrahydroindeno [1,2-d] -mdioxin and 4.4a, 5.9b-tetrahydro-2,4-dimethylindeno [1,2d] -m-dioxin;
xx) aromatic and araliphatic aldehydes and ketones, such as, for example, benzaldehyde; phenylacetaldehyde, 3-phenylpropanal, 2-phenyl propanai, 4-methylbenzaldehyde, 4methylphenylacetaldehyde, 3- (4-ethylphenyl) -2,2 dimethylpropanal, 2-methyl-3- (4isopropylphenyl) propanai, 2-methyl-3- (4-tertbutylphen ) propanai, 3- (4-tert-butylphenyl) propanai, cinnamaldehyde, alpha-butylcinnamaldehyde, alphaamylcinnamaldehyde, alpha-hexylcinnamaldehyde, 3-methyl5-phenylpentanal, 4-methoxybenzaldehyde, 4-hydroxy-3-methoxybenzaldehyde, 4-hydroxy-3benzaldehyde 4-methylenedioxybenzaldehyde, 3,4-dimethoxybenzaldehyde, 2-methyl3- (4-methoxyphenyl) propanai, 2-methyl-3- (4methylendioxyphenyl) propanai, acetophenone, 4-methylacetophenone, 4-methoxyacetophenone, 4-tert-tert-butyl
2,6-dimethylacetophenone, 4-phenyl-2-butanone, 4— (4— hydroxyphenyl) -2-butanone, 1- (2-naphthalenyl) ethanone, benzophenone, 1,1,2,3,3,6-hexamethyl -5-indanyl methyl ketone, 6-tert-butyl-l, l-dimethyl-4-indanyl methyl ketone, 1- [2,3-dihydro-l, 1,2,6-tetramethyl-3- (1-methyl
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BE2019 / 5497 ethyl) -1H-5-indenyl] ethanone and 5 ', 6', 7 ', 8'-tetrahydro3', 5 ', 5', 6 ', 8', 8'-hexamethyl-2-acetonaphthone;
xxi) aromatic and araliphatic carboxylic acids and their esters, such as, for example, benzoic acid, phenylacetic acid, methyl benzoate, ethyl benzoate, hexyl benzoate, benzyl benzoate, methyl phenylacetate, ethyl phenylacetate , geranyl phenylacetate, phenylethyl phenylacetate, methyl cinnamate, ethyl cinnamate, benzyl cinnamate, phenylethyl cinnamate, cinnamyl cinnamate, allyl phenoxyacetate, methyl salicylate, isoamyl salicylate, hexyl salicylate, salycate cyclohexyl, cis-3hexenyl salicylate, benzyl salycate, phenylethyl salicylate, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, ethyl 3-phenylglycidate and ethyl 3-methyl-3phenylglycidate;
xxii) nitrogen-containing aromatic compounds, such as, for example, 2,4,6-trinitro-1, 3dimethyl-5-tert-butylbenzene, 3,5-dinitro-2,6-dimethyl-
4-tert-butylacetophenone, cinnamonitrile, 5-phenyl-3methyl-2-pentenonitrile, 5-phenyl-3methylpentanonitrile, methylanthranilate, methyl-Nmethylanthranilate, Schanth bases of methylanthranilate with 7-hydroxy-3,7-dimethyloctanal, 2-methyl 3- (4-tert-butylphenyl) propanai or 2,4-dimethyl-
3-cyclohexene carbaldehyde, 6-isopropylquinoline, 6isobutylquinoline, 6-sec-butylquinoline, indole, skatole, 2-methoxy-3-isopropylpyrazine and 2-isobutyl-3methoxypyrazine;
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BE2019 / 5497 xxiii) phenols, phenyl ethers and phenyl esters, such as, for example, estragole, anethole, eugenol, eugenyl methyl ether, isoeugenol, isoeugenol methyl ether, thymol, carvacrol, diphenyl ether, beta-ethyl ether, beta-ethyl ether, beta-ethyl ether beta-naphthylisobutyl ether, 1,4-dimethoxybenzene, eugenyl acetate, 2-methoxy-4methylphenol, 2-ethoxy-5- (1-propenyl) phenol and presylphenylacetate;
xxiv) heterocyclic compounds, such as, for example, 2,5-dimethyl-4-hydroxy-2H-furan-3-one, 2ethyl-4-hydroxy-5-methyl-2H-furan-3-one, 3- hydroxy-2methyl-4H-pyran-4-one, 2-ethyl-3-hydroxy-4H-pyran-4 one;
xxv) lactones, such as, for example, 1,4-octanolide, 3-methyl-1,4-octanolide, 1,4nonanolide, 1,4-decanolide, 8-decen-1,4,4-olide, 1, 4undecanolide , 1,4-dodecanolide, 1,5-decanolide, 1,5dodecanolide, 1,15-pentadecanolide, cis and trans-1'pentadecene-1,15-olide, cis and trans-12-pentadecene1,15-olide, 1 , 16-hexadecanolide, 9-hexadecene-l, 16olid, 10-oxa-l, 16-hexadecanolide, ll-oxa-1,16hexadecanolide, 12-oxa-l, 16-hexadecanolide, ethylene1, 12-dodecanedioate, ethylene-1 , 13-tridecanedioate, coumarin, 2,3-dihydrocoumarin, and octahydrocoumarin.
Natural exudates such as essential oils extracted from plants can also be used as fragrance components in the invention. Essential oils are generally extracted by steam distillation, solid phase extraction, cold pressing, extraction by
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BE2019 / 5497 solvent, extraction by supercritical fluid, hydrodistillation or simultaneous distillation-extraction. Essential oils can be derived from many different parts of the plant, including for example the leaves, flowers, roots, buds, twigs, rhizomes, heartwood, bark, resin, seeds and fruit. The main families of plants from which essential oils are extracted include: Asteraceae, Myrtaceae, Lauraceae _r Lamiaceae _r Myrtaceae _r Rutaceae and Zingiberaceae. The oil is "essential" in that it carries a distinctive smell, or essence, of the plant.
Those skilled in the art know that essential oils are complex mixtures generally made up of several tens or hundreds of constituents. Most of these constituents have an isoprenoid skeleton having 10 carbon atoms (monoterpenes), 15 carbon atoms (sesquiterpenes) or 20 carbon atoms (diterpenes). Smaller amounts of other constituents can also be found, such as alcohols, aldehydes, esters and phenols. However, an individual essential oil is generally considered to be a unique ingredient in the context of a practical fragrance formulation. Therefore, an individual essential oil can be considered to be a unique fragrance component for the purpose of the present invention.
Specific Examples of Essential Oils to Be Used as Perfume Components in the Invention
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BE2019 / 5497 include cedarwood oil, juniper oil, cumin oil, cinnamon bark oil, camphor oil, rosewood oil, ginger oil, basil oil, eucalyptus oil, lemongrass oil, peppermint oil, rosemary oil, spearmint oil, tea tree oil, frankincense oil, chamomile oil, clove oil, jasmine oil, lavender oil, rose oil, oil ylangylang, bergamot oil, grapefruit oil, lemon oil, lime oil, orange oil, fir needle oil, galbanum oil, geranium oil, grapefruit oil, pine needle oil , cumin oil, labdanum oil, lovage oil, marjoram oil, mandarin oil, clary sage oil, nutmeg oil, myrtle oil, clove oil, neroli oil, patchouli oil, sandalwood oil, thyme oil, verbena oil, vetiver oil and forest tea oil.
The number of different perfume components contained in the perfume formulation (fl) will generally be at least 4, preferably at least 6, more preferably at least 8 and most preferably at least minus 10, such as from 10 to 200 and more preferably 10 to 100.
Typically, no single perfume component will constitute more than 70% by weight of the total weight of the perfume formulation (fl). Preferably, no single perfume component will constitute more than 60% by weight of the total weight of the perfume formulation (fl) and more preferably no perfume component
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BE2019 / 5497 single will not constitute more than 50% by weight of the total weight of the perfume formulation (fl).
The term "fragrance formulation" in the context of the present invention refers to the fragrance components as defined above, plus any optional excipient. Excipients can be included in perfume formulations for various purposes, for example as solvents for insoluble or sparingly soluble components, as diluents for more powerful components or for controlling the vapor pressure and vapor pressure characteristics. evaporation of the perfume formulation. Excipients can have many characteristics of fragrance components, but they do not emit strong odors by themselves. Consequently, excipients can be distinguished from perfume components because they can be added to perfume formulations in high proportions such as 30% or even 50% by weight of the total weight of the perfume formulation without significantly modifying the quality. odor of the perfume formulation. Some examples of suitable excipients include ethanol, isopropanol, diethylene glycol monoethyl ether, dipropylene glycol, diethyl phthalate and triethyl citrate. Mixtures of any of the materials described above can also be adapted.
A suitable perfume formulation (f1) to be used in the invention comprises a mixture of at least 10 perfume components chosen from hydrocarbons i) aliphatic alcohols and
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BE2019 / 5497 araliphatics; ii) aliphatic aldehydes and their acetals; iv) aliphatic carboxylic acids and their esters; viii) acyclic terpene alcohols; ix) cyclic terpene aldehydes and ketones;
xii) cyclic and cycloaliphatic ethers;
xiii) cyclic alcohol esters; xvi) esters of araliphatic alcohols and aliphatic carboxylic acids; xviii) araliphatic ethers and their acetals; xix) aromatic and araliphatic aldehydes and ketones; xx) and aromatic and araliphatic carboxylic acids and their esters; xxi) as described and illustrated in more detail above.
The content of fragrance components is preferably in the range of 50 to 100%, more preferably 60 to 100% and most preferably 75 to 100% by weight based on the total weight of the formulation perfume (fl); one or more excipients (as described above) constituting the remainder of the perfume formulation (fl) if necessary.
A perfume formulation (fl) is in the form of free droplets dispersed in the composition. The term "free droplets" in the context of the present invention refers to droplets which are not trapped in discrete polymer microparticles.
In a typical liquid laundry detergent composition according to the invention, the level of perfume formulation (fl) generally ranges from 0.1 to 0.75%, and preferably from 0.3 to 0.6% (by weight on the basis of the total weight of the composition).
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BE2019 / 5497
Preferably, when the perfume comprises an aldehyde, it is preferred that the total content of aldehyde in the composition of the invention is less than 0.25% by weight of the composition. This makes it possible to provide a composition having improved stability in the presence of polyamine.
MICROCAPSULES
One type of microparticle suitable for use in the invention is a microcapsule. Microencapsulation can be defined as the process of surrounding or wrapping a substance in another substance on a very small scale, generating capsules ranging in size from less than one micron to several hundred microns. The material that is encapsulated can be called the heart, active ingredient or principle, filling, payload, nucleus, or internal phase. The material encapsulating the heart can be called the lining, membrane, envelope, or wall material.
Microcapsules generally have at least one generally spherical continuous envelope surrounding the heart. The envelope may contain pores, gaps or interstitial openings depending on the materials and the encapsulation techniques used. Several envelopes can be made of identical or different encapsulation materials, and can be arranged in layers of varying thicknesses around the heart. Alternatively, the microcapsules can be shaped asymmetrically and variably with an amount of smaller droplets of core material embedded in the microcapsule.
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BE2019 / 5497
The envelope can have a barrier function protecting the core material from the environment external to the microcapsule, but it can also serve as a means of modulating the release of core materials such as a perfume. Thus, an envelope may be water soluble or may swell in water and a fragrance release may be activated in response to exposure of the microcapsules to a humid environment. Likewise, if an envelope is temperature sensitive, a microcapsule can release perfume in response to high temperatures. Microcapsules can also release perfume in response to shear forces applied to the surface of the microcapsules.
A preferred type of polymer microparticle suitable for use in the invention is a core-shell polymer microcapsule in which at least one generally spherical continuous shell of polymeric material surrounds a core containing the perfume formulation (f2). The envelope will typically constitute at most 20% by weight based on the total weight of the microcapsule. The perfume formulation (f2) will typically constitute from about 10 to about 60% and preferably from about 20 to about 40% by weight based on the total weight of the microcapsule. The quantity of perfume (f2) can be measured by taking a suspension of the microcapsules, extracting it in ethanol and carrying out a measurement by liquid chromatography.
The core-shell polymer microcapsules intended for use in the invention can be
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BE2019 / 5497 prepared using methods known to those skilled in the art such as coacervation, interfacial polymerization, and polycondensation.
The coacervation process typically involves the encapsulation of a core material generally insoluble in water by the precipitation of one or more colloidal materials on the surface of droplets of the material. Coacervation can be simple, for example using a colloid such as gelatin, or a complex where two or potentially more than two colloids of opposite charge, such as gelatin and gum arabic or gelatin and carboxymethylcellulose, are used under carefully controlled pH, temperature and concentration conditions.
An interfacial polymerization generally takes place with the formation of a fine dispersion of oil droplets (the oil droplets containing the core material) in a continuous aqueous phase. The dispersed droplets form the heart of the future microcapsule and the dimensions of the dispersed droplets directly determine the size of the following microcapsules. Materials forming a microcapsule shell (monomers or oligomers) are contained both in the dispersed phase (oil droplets) and in the continuous aqueous phase and they react together at the phase interface to form a polymer wall around the oil droplets, thus encapsulating the droplets and forming heart-shell microcapsules. An example of a core-shell microcapsule produced by this process is
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BE2019 / 5497 a polyurea microcapsule with an envelope formed by the reaction of diisocyanates or polyisocyanates with diamines or polyamines.
Polycondensation involves forming a dispersion or an emulsion of the core material in an aqueous solution of precondensate of polymeric materials under suitable stirring conditions to produce capsules of a desired size, and adjusting the reaction conditions so as to cause condensation of the precondensate by acid catalysis, the result being that the condensate separates from the solution and surrounds the dispersed core material to produce a coherent film and the desired microcapsules. An example of a core-shell microcapsule produced by this process is an aminoplast microcapsule with a shell formed from the polycondensation product of melamine (2,4,6-triamino-1,3,5triazine) or urea with formaldehyde. Appropriate crosslinking agents (e.g. toluene diisocyanate, divinyl benzene, butanediol diacrylate) can also be used and secondary wall polymers can also be used when appropriate, e.g. anhydrides and their derivatives, especially maleic anhydride polymers and copolymers.
An example of a preferred core-envelope polymer microcapsule for use in the invention is an aminoplast microcapsule with an aminoplast envelope surrounding a core containing the perfume formulation (f2). More preferably, such
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BE2019 / 5497 aminoplast shell is formed from the product of polycondensation of melamine with formaldehyde.
Polymeric microparticles suitable for use in the invention will generally have an average particle size of between 100 nanometers and 50 microns. Particles larger than these enter the visible range. Examples of particles in the submicrometric range include latexes and miniemulsions with a typical size range of 100 to 600 nanometers. The preferred particle size range is in the micron range. Examples of particles in the micron range include core-shell polymer microcapsules (such as those described in more detail above) with a typical size range of 1 to 50 microns, preferably 5 to 30 microns. The average particle size can be determined by light scattering using a Malvern Mastersizer device, the average particle size being taken as the median particle size value D (0.5). The particle size distribution can be narrow, wide, or multimodal. If necessary, the microcapsules as originally produced can be filtered or screened to produce a product of greater uniformity in size.
Polymeric microparticles suitable for use in the invention may be provided with a deposition aid on the exterior surface of the microparticle. Deposits are used to modify the properties of the exterior of the
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BE2019 / 5497 microparticle, for example to make the microparticle more resistant to a desired substrate. Desired substrates include cellulosics (including cotton) and polyesters (including those used in the manufacture of polyester fabrics).
The deposition aid can be suitably supplied to the outer surface of the microparticle by means of a covalent bond, entanglement or strong adsorption. Examples include core-shell polymeric microcapsules (such as those described in more detail above) in which a deposition aid is attached to the outside of the shell, preferably by means of a covalent bond. Although it is preferred that the deposition aid is attached directly to the outside of the envelope, it can also be attached via some kind of bond.
Deposition aids to be used in the invention may be suitably selected from polysaccharides having an affinity for cellulose. Such polysaccharides may be natural or synthetic and may have an intrinsic affinity for cellulose or may have been derived or otherwise modified to have an affinity for cellulose. Suitable polysaccharides have a ßl-4 glycan skeleton structure linked (generalized sugar) with at least 4, and preferably at least 10 skeleton residues which are ßl-4 linked, such as a glucan skeleton (consisting of residues linked ßl-4 glucose), a mannan backbone (consisting of linked ßl-4 mannose residues) or a
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BE2019 / 5497 xylan (consisting of bound ßl-4 xylose residues). Examples of such linked ß 1-4 polysaccharides include xyloglucans, glucomannans, mannans, galactomannans, ß (1-3), (1-4) glucan and the xylan family incorporating glucurono-, arabino- and glucuronoarabinoxylans. Preferred linked ßl-4 polysaccharides for use in the invention may be selected from xyloglucans of plant origin, such as pea xyloglucan and tamarind seed xyloglucan (TXG) (which has a ßl glucan backbone -4 linked with side chains of αD xylopyranose and ß-D-galactopyranosyl- (1-2) -α-Dxylo-pyranose, both 1-6 linked to the backbone); and plant-based galactomannans such as locust bean gum (LBG) (which has a mannan skeleton consisting of linked ß1-4 mannose residues, with single unit galactose side chains linked al-6 to the skeleton) .
Also suitable are polysaccharides which can gain an affinity for cellulose during hydrolysis, such as cellulose monoacetate; or modified polysaccharides having an affinity for cellulose such as hydroxypropylcellulose, hydroxypropylmethylcellulose,
Hydroxyethylmethylcellulose, hydroxypropylguar, hydroxyethylethylcellulose and methylcellulose.
Deposition aids to be used in the invention can also be chosen from polymers containing phthalate having an affinity for polyester. These phthalate-containing polymers may have one or more non-hydrophilic segments
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BE2019 / 5497 ionic comprising oxyalkylene groups (such as oxyethylene, polyoxyethylene, oxypropylene or polyoxypropylene groups), and one or more hydrophobic segments comprising terephthalate groups. Typically, the oxyalkylene groups will have a degree of polymerization from 1 to about 400, preferably from 100 to about 350, more preferably from 200 to about 300. A suitable example of a phthalate-containing polymer of this type is a copolymer having random blocks of ethylene terephthalate and polyethylene oxide terephthalate.
Mixtures of any of the materials described above can also be adapted.
Deposition aids for use in the invention will generally have a weight average molecular weight (M _w ) in the range of from about 5 kDa to about 500 kDa, preferably from about 10 kDa to about 500 kDa and so more preferred from about 20 kDa to about 300 kDa.
An example of a particularly preferred core-shell polymer microcapsule for use in the invention is an aminoplast microcapsule with a shell formed by the polycondensation of melamine with formaldehyde; surrounding a heart containing the perfume formulation (f2); a deposition aid being attached to the outside of the envelope by covalent bonding. The preferred deposition aid is chosen from linked β1-4 polysaccharides, and in particular xyloglucans of plant origin, as described in more detail above.
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BE2019 / 5497
The present inventors have surprisingly observed that it is possible to reduce the total level of perfume included in the composition of the invention without sacrificing the overall feeling of perfume supplied to the consumer at key stages of the laundry process. A reduction in the total level of perfume is advantageous for cost and environmental reasons.
Consequently, the total amount of perfume formulation (fl) and perfume formulation (f2) in the composition of the invention is between 0.5 and 1.4%, preferably between 0.5 and 1.2 %, more preferably between 0.5 and 1% and most preferably between 0.6% and 0.9% (by weight based on the total weight of the composition).
The weight ratio between the perfume formulation (f1) and the perfume formulation (f2) in the composition of the invention is preferably in the range of 60:40 to 45:55. Particularly good results have been obtained in a report in
weight between the formulation of perfume (fl) and the perfume formulation (f2) About 1 50:50. The perfume (fl) and the perfume (f2)are typically incorporated at different stages of the
formation of the composition of the invention. Typically, the discrete polymer microparticles (for example microcapsules) containing the perfume formulation (f2) are added in the form of a suspension to a heated base formulation comprising other components of the composition (such as surfactants and solvents). The scent (fl) is typically post
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BE2019 / 5497 dosed later after the base formulation has cooled.
OTHER OPTIONAL INGREDIENTS
A composition of the invention may contain other optional ingredients to improve performance and / or consumer acceptability. Examples of such ingredients include foam boosting agents, preservatives (e.g. bactericides), polyelectrolytes, anti-shrinkage agents, anti-crease agents, antioxidants, sunscreens, anti-corrosion agents, imparting agents drapery, antistatic agents, ironing aids, dyes, nacre agents and / or opacifiers, and shading dyes. Each of these ingredients will be present in an amount effective to achieve its goal. Generally, these optional ingredients are included individually in an amount of up to 5% (by weight based on the total weight of the composition).
PACKAGING AND DOSAGE
A composition of the invention can be packaged in the form of unit doses in a polymer film soluble in washing water. Alternatively, a composition of the invention may be provided in multi-dose plastic packaging with an upper or lower closure. A dosage measure can be supplied with the packaging, in the form of a part of the cap, or in the form of an integrated system.
The composition is particularly useful for use in methods of treating
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BE2019 / 5497 fabrics (or specific to: laundry, cleaning, conditioning, stain removal, etc.) carried out at least partially in washing machines with automatic dosing. The automatic dosing function may include a control device which is internal or external to the washing machine. In the case of external control devices, these can be connected to the machine wirelessly or by wired connection in order to allow control of the washing machine functions.
The automatic dosing machine can comprise at least one reservoir for the bulk storage of multiple doses of the composition and an automatic dosing device for automatically dispensing one or more doses of the composition from the reservoir into a treatment chamber, for example a machine drum. The at least one tank can be housed inside or outside the machine. One or more tanks can be removable and / or replaceable and / or refillable or any combination thereof. The consumer can buy one or more reservoirs in the form of a pre-filled cartridge, containing multiple doses of the composition.
The dosage can be automatic in the sense that the quantity of the composition dosed for a treatment program is calculated and / or implemented by the washing machine. The automatic dosing function can extend to a recommendation and / or a selection of appropriate washing programs by the washing machine. Calculation of the dose and / or washing program can
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BE2019 / 5497 be in response to data input by the user, for example or directly in a washing machine control device or via a personal computing device such as a laptop, a pocket computer or a smartphone, or data detected by the machine or associated devices, etc.
For example, the user can enter data about fabric smearing, etc. or this can be detected by the machine or by a stain detection device. The machine can dose appropriate amounts of the composition / ingredient ratios optimized for stain treatment. The machine can also select the most suitable washing program for stain treatment.
Accordingly, the present invention may incorporate a method of treating a fabric substrate with the composition in an automatic dosing washing machine as described above, the machine comprising at least one tank for bulk storage of doses. multiples of the composition and an automatic dosing device which automatically calculates and distributes one or more doses of the composition from the reservoir to a tissue treatment chamber, and optionally recommends and / or selects appropriate washing programs for said substrate, the process comprising the steps of:
1. add the composition to the tank, and there. initiating a washing cycle in which a dose of the composition is calculated and distributed
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BE2019 / 5497 automatically from the tank by the washing machine.
A method of laundry fabrics using a composition of the invention will usually involve diluting the dose of detergent composition with water to obtain a wash liquor, and washing fabrics with the wash liquor so formed.
The dilution step preferably provides a wash liquor which comprises inter alia from about 3 to about 20 g / wash of detersive surfactants (as defined in more detail above).
In automatic washing machines, the dose of detergent composition is typically introduced into a dispenser and from this, it is expelled into the machine by the water which flows in the machine, thus forming the washing liquor. . Depending on the configuration of the machine, 5 to about 65 liters of water can be used to form the washing liquor. The dose of detergent composition can be adjusted accordingly to give appropriate concentrations of wash liquor. For example, dosages for a typical front-loading washing machine (using 10 to 15 liters of water to form the wash liquor) can range from about 10 ml to about 60 ml, preferably from about 15 to 40 ml. Dosages for a typical top-loading washing machine (using 40 to 60 liters of water to form the wash liquor) may be higher, for example up to about 100 ml.
A subsequent step of aqueous rinsing and drying of the laundry is preferred.
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BE2019 / 5497
EXAMPLES
This is a formulation according to the present invention.
Ingredient % in weight 3EO SLES 6.8% 25-7 EthoxylateAlcohol (Non-Ionic) 10.2% Fatty acid 0.75% Triethanolamine 1.5% NaOH 1% Soil release polymer 0.3% Polyamine 1.7% Octyl1sothiazolinone 90 ppm Methylisothiazolinone 90 ppm Citric acid 0.5 / 1% Lactic acid 0.5 / 1% Demineralized Water Balancee
2019/5497

权利要求:
Claims (9)
[1]
1. - Liquid detergent composition comprising octylisothiazolinone and an additional isothiazolinone chosen from a benzisothiazolinone, chloromethylisothiazolinone, 2-methyl-1, 2benzisothiazol-3 (2H) -one and a methylisothiazolinone.
[2]
2. - Composition according to claim 1, in which the octylisothiazolinone and the additional isothiazolinone are present in a weight ratio ranging from 0.05: 1 to 65: 1, more preferably from 0.1: 1 to 10 : 1 and most preferably from 0.7: 1 to 1.3: 1.
[3]
3. - Composition according to any one of claims 1 to 3, in which the pH of the composition is between 3.5 and 10.
[4]
4. - Composition according to any one of the preceding claims, in which
The additional isothiazolinone is methylisothiazolinone.
[5]
5. - Composition according to any one of the preceding claims, in which
Octylisothiazolinone and additional isothiazolinone are present together in an amount of 0.001 to 1% by weight of the composition.
[6]
6. - Composition according to any one of the preceding claims comprising from 3 to 15% by weight of anionic surfactant.
[7]
7. - Composition according to any one of the preceding claims comprising from 0.5 to 3.0% by weight of polyamine.
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BE2019 / 5497
[8]
8. - Composition according to any one of the preceding claims, comprising a soil release polymer.
[9]
9. - Composition according to any one of the preceding claims, which is a unit dose product.

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法律状态:
2020-04-22| FG| Patent granted|Effective date: 20200316 |

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2021-07-19| PD| Change of ownership|Owner name: UNILEVER IP HOLDINGS B.V.; NL Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), ASSIGNMENT; FORMER OWNER NAME: UNILEVER SOCIETE ANONYME Effective date: 20210607 |

优先权:

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申请号 | 申请日 | 专利标题

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EP18189064|2018-08-14|

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