• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a thermal insulation material with flame retardant, comprising: 85 to 95 wt .-% waste paper as insulating material and 5 to 15 wt .-% powdered flame retardant, wherein the flame retardant contains no boron and no boron-containing compounds. The flame retardant further comprises: 15 to 100% by weight of perlite, 0 to 85% by weight of one or more synergistic additive (s) selected from the group consisting of phosphorus-containing compounds, nitrogen-containing organic compounds, organic phosphorus-nitrogen compounds and magnesium sulfate, sodium bicarbonate, lysine sulfate, calcium carbonate, sodium carbonate, sodium citrate, aluminum hydroxide, magnesium hydroxide, zinc sulfide, sodium phosphinate, magnesium chloride, calcium sulfate, calcium magnesium carbonate, the flame retardant being free of ammonium compounds.
    公开号:CH714275A2
    申请号:CH00091/18
    申请日:2018-01-25
    公开日:2019-04-30
    发明作者:Stöckle Markus
    申请人:Haeffner Gmbh & Co Kg；
    IPC主号:
    专利说明:

    The invention relates to a heat insulation material with flame retardant comprising 80 to 95 wt .-% waste paper as insulation and 5 to 15 wt .-% powdered flame retardant, the flame retardant containing no boron and no boron-containing compounds.
    To increase energy efficiency, special attention has been paid to good thermal insulation in buildings in recent years. For thermal insulation, inorganic materials such as glass and rock wool or organic materials such as polystyrene and sheep's wool or cellulose-containing materials such as sawdust, cork or felt are used. Shredded newsprint is obtained from recycling processes and used as a thermal insulation material. A disadvantage of insulating materials made from waste paper is the flammability and the high risk of ignition.
    For this reason, thermal insulation materials from waste paper must be equipped with a flame retardant so that they meet the requirements of the fire protection class placed on such a product. Boron salts are mainly used as flame retardants today. However, these have been classified as toxic to reproduction and have been included as a subject of very high concern in the candidate list of the Reach Regulation. They are therefore considered undesirable in an ecological product, as is the alternative insulation with cellulose flakes made from waste paper.
    So far, ammonium salts have been used as a flame retardant in waste paper as an alternative. Another important restriction now results from a new EU regulation 2016/1017 of June 23, 2016, which provides for a ban on ammonium salts as a flame retardant component in cellulose insulation materials.
    The majority of the conventional fire retardants used are critical because of their chemical composition in terms of toxicity, environmental compatibility and degradability.
    It was therefore an object to provide an environmentally friendly thermal insulation material from waste paper with a flame retardant that circumvents the aforementioned disadvantages and that is particularly toxicologically safe and legally permissible.
    The object is achieved according to the invention by a thermal insulation material according to protection claim 1.
    Further embodiments are the subject of the dependent claims or described below.
    The thermal insulation material according to the invention with flame retardant comprises
    - 85 to 95% by weight of waste paper as insulation and
    - 5 to 15 wt .-% powdered flame retardant.
    According to the invention, the flame retardant contains no boron, no boron-containing compounds and is free from ammonium salts. Contains the flame retardant in the thermal insulation material according to the invention
    15 to 100% by weight pearlite,
    - 0 to 85% by weight of one or more synergistic additive (s) selected from the group consisting of • phosphorus-containing compounds, • nitrogenous organic compounds, • organic phosphorus-nitrogen compounds and • magnesium sulfate, sodium bicarbonate, lysine sulfate, calcium carbonate, sodium carbonate , Sodium citrate, aluminum hydroxide, magnesium hydroxide, zinc sulfide, sodium phosphinate, magnesium chloride, calcium sulfate, calcium magnesium arbonate.
    The thermal insulation material according to the invention preferably contains 85 to 95% by weight of waste paper and 5 to 15% by weight of flame retardant, particularly preferably 85 to 95% by weight of waste paper and 5 to 15% by weight of flame retardant, the components becoming Add 100% by weight.
    The flame retardant in the thermal insulation material according to the invention preferably consists of up to 100 wt .-% pearlite or is supplemented by synergistic additives in the range of 20 to 50 wt .-%. In a further embodiment, the flame retardant can consist of 15 and 100% by weight pearlite and can also be supplemented with suitable additives in the range from 20 to 85% by weight. Amounts of 30 to 50% of additives are preferably added and 70 to 50% by weight of pearlite are used.
    In one embodiment, the flame retardant according to the invention contains 1 to 100 ppm of one or more biocidal substances. The biocidal substances are added to protect the finished insulation from fungal attack. These substances are preferably added in extremely low doses of 1 to 100 ppm. The silver salts are particularly preferred here.
    CH 714 275 A2 According to the invention, the flame retardant preferably contains 20 to 85% by weight, particularly preferably 30 to 50% by weight of synergistic additives and 15 to 80% by weight of pearlite, particularly preferably 45 to 70% by weight ,
    In one embodiment of the thermal insulation material according to the invention, the components perlite, synergistic additives and possibly biocide of the flame retardant add up to 100% by weight.
    [0016] According to the invention, the flame retardant particularly preferably has one of the following compositions:
    A: 100% by weight pearlite or
    B: 50 to 70% by weight of pearlite and up to 30% by weight of inorganic phosphorus compounds and up to 20% by weight of organic phosphorus-nitrogen compounds.
    The invention further relates to the use of a waste paper containing a powdered flame retardant which contains
    15 to 100% by weight pearlite,
    - 0 to 85 wt .-% one or more synergistic additive (s) selected from the group consisting of phosphorus-containing compounds, nitrogen-containing organic compounds, organic phosphorus-nitrogen compounds and magnesium sulfate, sodium bicarbonate, lysine sulfate, calcium carbonate, sodium carbonate, sodium citrate, aluminum hydroxide , Magnesium hydroxide, zinc sulfide, sodium phosphinate, magnesium chloride, calcium sulfate, calcium magnesium carbonate,
    - no ammonium compounds and
    - No boron and no boron-containing compounds as thermal insulation.
    The flame retardant used according to the invention corresponds to the flame retardant used in the thermal insulation according to the invention. In one embodiment, the flame retardant used in accordance with the invention contains one or more phosphorus-containing compounds selected from the group consisting of monosodium phosphate, disodium phosphate, trisodium phosphate, monopotassium phosphate, dipotassium phosphate, tripotassium phosphate, monocalcium phosphate, dicalcium phosphate, tricalcium phosphate, trisodium phosphate, trisodium phosphate, trisodium phosphate, trisodium phosphate, trisodium phosphate, trisodium phosphate, trisodium phosphate, trisodium phosphate, trisodium phosphate , Dicalcium diphosphate, calcium dihydrogen phosphate, pentasodium triphosphate, pentapotassium triphosphate, sodium polyphosphate, potassium polyphosphate, sodium calcium polyphosphate, calcium polyphosphate, iron phosphate, magnesium phosphate, aluminum phosphate and mixtures thereof. In another embodiment, the flame retardant used according to the invention also contains one or more nitrogen-containing organic compounds selected from the group consisting of melamine, guanidine, urea and 1-cyanoguanidine, benzoguanidine and mixtures thereof. In one embodiment, the flame retardant used according to the invention also contains one or more nitrogenous phosphorus compounds selected from the group consisting of urea phosphate, melamine phosphate, melamine polyphosphate, melamine cyanate, guanidine phosphate and mixtures thereof.
    Alternatively or additionally, the flame retardant used according to the invention in one embodiment as synergistic additives contains one or more compounds from the group consisting of magnesium phosphate, aluminum phosphate, dicalcium phosphate, disodium phosphate, disodium hydrogen phosphate, sodium polyphosphate, calcium magnesium phosphate, melamine phosphate, guanidine phosphate phosphate, melamine phosphate, melamine , Melamine, 1-cyanoguanidine, calcium carbonate and magnesium sulfate.
    The flame retardant used according to the invention preferably contains 1 to 100 ppm of one or more biocidal substances.
    Preferably, the flame retardant used according to the invention consists of perlite, synergistic additives and possibly biocide, these components of the flame retardant being 100% by weight.
    [0022] There are different types of perlites. On the one hand there is the so-called raw perlite, which has its origin in volcanic lava, in which it quickly cools down in contact with water (steam) under extreme pressure. It belongs to the group of rhyolites, formerly known as quartz porphyry, and is assigned to the rocks. Raw perlite is an aluminum silicate and, at over 70 percent, has an exceptionally high proportion of silicon dioxide. The second is the expanded perlite. Raw perlite has a bulk density of about 900 to 1000 kg / m 3 , by annealing to about 800 to 1000 ° C it swells to 15 to 20 times its original volume and then has a bulk density of 50 to 100 kg / m 3 . According to the invention, raw and expanded perlite types are equally suitable for use as flame retardants.
    [0023] A typical chemical composition of pearlite is:
    SiO 2 68-75%
    CH 714 275 A2
    AI 2 O 3 10-15% Fe 2 O 3 1.0-2.5% CaO 1.5-2.0% MgO 0.2-1.5% K 2 O 3.2-4.5% Na 2 O 2.8-4.5% Loss on ignition (H 2 O) 2.0-5.0%
    According to the invention, the following compounds are used as synergistic additives to perlite:
    - Phosphorus compounds
    Both inorganic and organic phosphorus compounds or mixtures of the two can be used. Examples of phosphorus-containing additives of the invention the flame retardant include monosodium phosphate, disodium phosphate, trisodium phosphate, monopotassium phosphate, dipotassium phosphate, tripotassium phosphate, monocalcium phosphate, dicalcium phosphate, tricalcium phosphate, monomagnesium phosphate, dimagnesium phosphate, disodium diphosphate, Trisodium diphosphate, tetrasodium diphosphate, Tetrapotassium, Dicalcium diphosphate, calcium dihydrogen phosphate, pentasodium triphosphate, pentapotassium triphosphate, sodium polyphosphate, potassium polyphosphate , Sodium calcium polyphosphate, calcium polyphosphate, iron phosphate, magnesium phosphate, aluminum phosphate. Calcium and magnesium phosphates are particularly preferred.
    Compounds containing phosphorus serve to form a solidified, charred surface layer of phosphorus compounds. In addition, in certain cases they interrupt the radical chain mechanism of the combustion process within the gas phase. The thermal decomposition converts the flame retardant to phosphoric acid and removes water from the substrate by pyrolysis. This creates a protective layer of polyphosphoric acids and carbon.
    - Nitrogen-containing phosphorus compounds
    Organic phosphorus compounds that contain both nitrogen and phosphate have proven to be particularly suitable. These include in particular: urea phosphate, melamine phosphate, melamine polyphosphate, melamine cyanate, guanidine phosphate.
    - Nitrogenous compounds
    Organic compounds containing only nitrogen are also suitable. These include in particular:
    Melamine, guanidine, urea and 1-cyanoguanidine, benzoguanidine.
    These compounds can act in the gas phase by splitting off inert gases (ammonia, nitrogen) or cause carbonization / s of the solid phase by condensation reactions.
    The following substances have also proven useful as synergistic additives: magnesium sulfate, sodium bicarbonate, lysine sulfate, calcium carbonate, sodium carbonate, sodium citrate, aluminum hydroxide, magnesium hydroxide, zinc sulfide, sodium phosphinate, magnesium chloride, calcium sulfate, calcium magnesium carbonate. These additives act through the energy consumption of an endothermic decomposition, for example through evaporation of bound water, which cools the material or through the release of flame-emitting gases (e.g. carbon dioxide).
    The synergistic additives are used individually or in a mixture of different additives and a mixture of the different groups.
    The thermal insulation material according to the invention is to be regarded as an environmentally friendly innovation, which is also free of ammonium salts and has a better efficiency than thermal insulation materials with flame retardants according to the prior art.
    The flame retardant can be applied to the waste paper by known methods. For example, the flame retardant can be mixed with the insulating material from waste paper when it is fibered up in appropriate mills. In this case, the flame retardant is available as a dry powder.
    It has surprisingly been found that the use of perlite (volcanic rock) can achieve extremely strong flame retardancy for insulating materials made from waste paper. Perlite is a natural, non-flammable and pollutant-free volcanic rock, which arises when liquid magma meets water with the exclusion of oxygen. A suitable combination of different synergistic additives can further improve the flame retardant properties. As a result, better and environmentally friendly flame protection can be achieved than is known from the prior art. This was so unpredictable, as the main uses of Perlit are mainly in the construction industry for sound insulation or lightweight construction, food industry as filter material in the production of beer, soft drinks and table oil, pharmaceutical industry
    CH 714 275 A2 for filtering antibiotics, agriculture for soil improvement, treatment of liquid fertilizers, pesticides and environmental protection for collecting oil pollution on the surface of water and water filtering in swimming pools. Perlite was not expected to be ideally suited for use in waste paper insulation.
    Another advantage of Perlite is the relatively low procurement costs and the inexhaustible occurrence and emergence from volcanic activity around the world. Since it is a purely mineral raw material, it is environmentally friendly and sustainable and therefore fits perfectly with insulation materials that come from a recycling process.
    Examples Several flame retardants were made. The individual components were ground to a powder in an IKA® “Tube Mill” laboratory mill at 20,000 rpm for 25 seconds. The flame retardants had the following compositions:
    Example A: a composition according to the invention
    perlite 100% by weight
    Example B: a composition according to the invention
    perlite 39% by weight magnesium phosphate 39% by weight guanidine 22% by weight
    Example C: a composition according to the invention
    perlite 78% by weight melamine 22% by weight
    Example D: a composition according to the invention
    perlite 20% by weight magnesium phosphate 20% by weight aluminum phosphate 20% by weight calcium carbonate 20% by weight melamine phosphate 20% by weight
    Example E: a composition according to the invention
    perlite 50% by weight magnesium phosphate 15% by weight dicalcium 15% by weight melamine phosphate 20% by weight
    Example F: a composition according to the invention
    perlite 50% by weight
    CH 714 275 A2
    calcium carbonate 35% by weight melamine 15% by weight
    Example G: a composition according to the invention
    perlite 28% by weight disodium phosphate 15% by weight disodium dihydrogen 15% by weight melamine 22% by weight
    Example H: a composition according to the invention
    perlite 50% by weight sodium polyphosphate 20% by weight Maqnesiumsulfat 10% by weight 1-cyanoguanidine 20% by weight
    Example I: a composition according to the invention
    perlite 50% by weight Calciummagnesiumcarbonate 35% by weight urea phosphate 20% by weight
    Example J (comparative example): a composition according to the prior art (containing ammonium)
    ammonium polyphosphate 10% by weight ammonium sulfate 45% by weight aluminum hydroxide 45% by weight
    Fibrous waste paper was mixed with 10% by weight of one of the above-mentioned ammonium-free flame retardant mixtures according to the invention or mixed with the flame retardant composition according to Comparative Example J.
    Fire test The fire tests were carried out in a fire test device according to DIN ISO 11 925-2 to determine the building material class B2 (normally flammable). The thermal insulation materials with flame retardant compositions A to J were filled in the sample holder (basket for loose substances) and fixed vertically in the firebox on the holding device. The flame was then applied to a burner inclined at an angle of 45 ° for 15 seconds. The charring distance (fire cone, charred material), as well as any afterglow and smoke afterwards were measured. The test is passed if the charring distance is not exceeded 15 cm. Afterglow and after-smoking were also observed, but are currently not parameters that are required for passing the test according to building material class B2.
    The results are summarized in the following table:
    CH 714 275 A2
    Sample No .: Charring distance in cm Afterglow seconds Smoke after sec Test building material classB2 passed A) 8th 15 0 Yes B) 9 8th 2 Yes C) 10 6 0 Yes D) 10 2 3 Yes e) 8th 3 0 Yes F) 9 6 1 Yes G) 7 8th 2 Yes H) 7 11 0 Yes 1) 7 7 3 Yes J) Vergi. E.g. 9 1 6 Yes
    Thus, the required classification into building material class B2 could be achieved for all ammonium-free flame retardant mixtures based on perlite.
    权利要求:
    Claims (18)
    [1]
    claims
    1. Comprehensive thermal insulation with flame retardant
    - 85 to 95% by weight of waste paper as insulation and
    - 5 to 15 wt .-% powdered flame retardant, wherein the flame retardant contains no boron and no boron-containing compounds, characterized in that the flame retardant contains • 15 to 100 wt .-% pearlite, • 0 to 85 wt .-% one or more synergistic (n) Additive (s) selected from the group consisting of phosphorus-containing compounds, nitrogenous organic compounds, organic phosphorus-nitrogen compounds and magnesium sulfate, sodium bicarbonate, lysine sulfate, calcium carbonate, sodium carbonate, sodium citrate, aluminum hydroxide, magnesium hydroxide, zinc sulfide, sodium phosphinate, magnesium chloride, calcium sulfate , Calcium magnesium carbonate, and the flame retardant is free of ammonium compounds.
    [2]
    2. Thermal insulation according to claim 1, characterized in that the thermal insulation contains 85 to 95 wt .-% waste paper and 5 to 15 wt .-% flame retardant.
    [3]
    3. Thermal insulation material according to claim 1 or 2, characterized in that the flame retardant contains 1 to 100 ppm of one or more biocidal substances.
    [4]
    4. Thermal insulation material according to one of the preceding claims, characterized in that the flame retardant contains 20 to 85 wt .-%, preferably 30 to 50 wt .-% synergistic additives.
    [5]
    5. Thermal insulation material according to one of the preceding claims, characterized in that the flame retardant contains 15 to 80 wt .-%, preferably 50 to 70 wt .-% pearlite.
    [6]
    6. Thermal insulation material according to one of the preceding claims, characterized in that the constituents perlite, synergistic additives and possibly biocide of the flame retardant add up to 100% by weight.
    [7]
    7. The heat insulating material according to any one of the preceding claims, characterized in that the phosphorus-containing compounds are selected from the group consisting of monosodium phosphate, disodium phosphate, trisodium phosphate, monopotassium phosphate, dipotassium phosphate, tripotassium phosphate, monocalcium phosphate, dicalcium phosphate, tricalcium phosphate, monomagnesium phosphate, dimagnesium phosphate, disodium diphosphate, Trisodium diphosphate, tetrasodium -diphosphate, tetrakalium diphosphate, dicalcium diphosphate, calcium dihydrogen phosphate, pentasodium triphosphate, pentapotassium triphosphate, sodium polyphosphate, potassium polyphosphate, sodium calcium polyphosphate, calcium polyphosphate, iron phosphate, magnesium phosphate and mixtures thereof, aluminum phosphate.
    [8]
    8. Thermal insulation material according to one of the preceding claims, characterized in that the nitrogen-containing organic compounds are selected from the group consisting of melamine, guanidine, urea and 1-cyanoguanidine, benzoguanidine and mixtures thereof.
    CH 714 275 A2
    [9]
    9. Thermal insulation material according to one of the preceding claims, characterized in that the nitrogen-containing phosphorus compounds are selected from the group consisting of urea phosphate, melamine phosphate, melamine polyphosphate, melamine cyanate, guanidine phosphate and mixtures thereof.
    [10]
    10. Thermal insulation material according to one of the preceding claims, characterized in that the synergistic additives one or more compounds from the group consisting of magnesium phosphate, aluminum phosphate, dicalcium phosphate, disodium phosphate, disodium hydrogen phosphate, sodium polyphosphate, calcium magnesium phosphate, melamine phosphate, guanidine phosphate, melamine polyamine phosphate, melamine polyamine phosphate , 1-cyanoguanidine, calcium carbonate and magnesium sulfate.
    [11]
    11. Thermal insulation material according to one of the preceding claims, characterized in that the flame retardant has one of the following compositions:
    -100% pearlite or
    -50 to 70% by weight of pearlite and 20 to 30% by weight of inorganic phosphorus compounds and 10 to 20% by weight of organic phosphorus-nitrogen compounds.
    [12]
    12. Use of a waste paper containing a powdered flame retardant that contains
    15 to 100% by weight pearlite,
    - 0 to 85 wt .-% one or more synergistic additive (s) selected from the group consisting of phosphorus-containing compounds, nitrogen-containing organic compounds, organic phosphorus-nitrogen compounds and magnesium sulfate, sodium bicarbonate, lysine sulfate, calcium carbonate, sodium carbonate, sodium citrate, aluminum hydroxide , Magnesium hydroxide, zinc sulfide, sodium phosphinate, magnesium chloride, calcium sulfate, calcium magnesium carbonate,
    - no ammonium compounds and
    - No boron and no boron-containing compounds as thermal insulation.
    [13]
    13. Use according to claim 12, characterized in that the flame retardant contains 1 to 100 ppm of one or more biocidal substances.
    [14]
    14. Use according to claim 12 or 13, characterized in that the flame retardant consists of pearlite, synergistic additives and possibly biocide and these components of the flame retardant add up to 100% by weight.
    [15]
    15. Use according to one of claims 11 to 14, characterized in that the flame retardant contains one or more phosphorus-containing compounds selected from the group consisting of monosodium phosphate, disodium phosphate, trisodium phosphate, monopotassium phosphate, dipotassium phosphate, tripotassium phosphate, monocalcium phosphate, dicalcium phosphate, tricalcium phosphate, monomagnesium phosphate , Dimagnesium phosphate, disodium diphosphate, trisodium diphosphate, tetrasodium diphosphate, tetrapotassium diphosphate, dicalcium diphosphate, calcium dihydrogen phosphate, pentasodium triphosphate, pentapotassium triphosphate, sodium polyphosphate, potassium polyphosphate phosphate, sodium phosphate phosphate, sodium phosphate phosphate, sodium phosphate phosphate
    [16]
    16. Use according to one of claims 12 to 15, characterized in that the flame retardant contains one or more nitrogen-containing organic compounds selected from the group consisting of melamine, guanidine, urea and 1-cyanoguanidine, benzoguanidine and mixtures thereof.
    [17]
    17. Use according to one of claims 12 to 16, characterized in that the flame retardant contains one or more nitrogen-containing phosphorus compounds selected from the group consisting of urea phosphate, melamine phosphate, melamine polyphosphate, melamine cyanate, guanidine phosphate and mixtures thereof.
    [18]
    18. Use according to one of claims 12 to 17, characterized in that the flame retardant contains as synergistic additives one or more compounds from the group consisting of magnesium phosphate, aluminum phosphate, dicalcium phosphate, disodium phosphate, disodium hydrogen phosphate, sodium polyphosphate, calcium magnesium phosphate, melamine phosphate, guanidine phosphate, melamine phosphate, melamine Urea phosphate, melamine cyanurate, melamine, 1-cyanoguanidine, calcium carbonate and magnesium sulfate.
    类似技术:
    公开号 | 公开日 | 专利标题
    US4168175A|1979-09-18|Fire retardant compositions
    US9410087B2|2016-08-09|Fungicidal and parasiticidal fire-retardant powder
    EP0946809B1|2001-10-17|Non-inflammable fiber product
    Liodakis et al.2013|Thermal analysis of Pinus sylvestris L. wood samples treated with a new gel–mineral mixture of short-and long-term fire retardants
    EP0351670B1|1993-01-07|Poorly inflammable construction parts, especially boards, and process for their manufacture
    EP0106248A2|1984-04-25|Process for the preparation of activated ammonium polyphosphate and its use
    CN101961879A|2011-02-02|Method for preparing fiberboard composite flame retardant
    CN102827398B|2014-04-16|Core-shell-structure phosphorus-nitrogen compound modified hydrotalcite-like flame retardant and preparation method thereof
    CH714275A2|2019-04-30|Ammonium-free thermal insulation material.
    EP2721121B1|2017-11-08|Use of old paper with flame retardant composition as thermal insulation material
    US20170022420A1|2017-01-26|Composition based on magnesium sulfate and diammonium hydrogenphosphate
    US10767306B2|2020-09-08|Water based liquid fire retardant for use in cellulose insulation
    Jin et al.2013|Combustion Characteristics of Pinus rigida Plates Painted with Alkylenediaminoalkyl-Bis-Phosphonic Acid |
    WO2017042022A1|2017-03-16|Method for recovering phosphorus
    Fouladi et al.2015|Enhancement of coir fiber fire retardant property
    Gao et al.2006|Synergism of GUP and boric acid characterized by cone calorimetry and thermogravimetry
    Li et al.2014|Effect of ammonium polyphosphate modified with 3-| propyltrimethoxy silane on the flammability and thermal degradation of pine-needles
    Colson et al.2019|Formulation of novel fire retardant additives for biobased insulation material
    Chung2015|Combustion Characteristics of Pinus rigida Specimens Treated with Phosphorus-Nitrogen Additives
    Li et al.2014|The synergistic effect of boric acid and ammonium polyphosphate on the thermal degradation and flammability of pine-needles
    Gao et al.2016|Flame retardancy of wood treated with GUP by cone calorimetry
    Bartošová et al.2019|Novel Environmental Friendly Fire Retardants
    Yu et al.2021|Study of Burning Behaviors and Fire Risk of Flame Retardant Plywood by Cone Calorimeter and TG Test
    Wang et al.2021|Flame Retardant Properties of a Guanidine Phosphate–Zinc Borate Composite Flame Retardant on Wood
    EP0263570A1|1988-04-13|Fire-extinguishing solution for extinguishing phosphorous and metal fires
    同族专利:
    公开号 | 公开日
    AT16465U1|2019-10-15|
    DE202017106453U1|2017-11-07|
    SE1850163A1|2019-04-26|
    CZ31962U1|2018-08-14|
    FI12048U1|2018-04-23|
    FR3072696B3|2019-12-20|
    FR3072696A3|2019-04-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3904539A|1973-01-02|1975-09-09|Grefco|Insulation having a reduced thermal conductivity|
    US4302344A|1980-02-22|1981-11-24|Grefco, Inc.|Loose-fill, thermal insulation|
    KR100635832B1|2003-09-29|2006-10-18|최준한|Incombustible composition, incombustible material for architecture using the same and preparing method thereof|
    PL403967A1|2013-05-20|2014-11-24|Wiesław Glaner|Ecological composite for the production of insulation panels for the building industry|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE202017106453.0U|DE202017106453U1|2017-10-25|2017-10-25|Ammonium-free thermal insulation material|
    [返回顶部]