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    公开号:BE1020391A3
    申请号:E2011/0262
    申请日:2011-05-02
    公开日:2013-09-03
    发明作者:Kris Edward Hahn
    申请人:Shaw Ind Group Inc；
    IPC主号:
    专利说明:

    Vinyl-free elastic floor covering product and method for its production
    Field of the invention
    The invention relates to an elastic floor covering, and in particular a vinyl-free elastic floor covering product.
    Background of the invention
    Conventional resilient floor coverings are typically made in the form of a continuous web or in tile form. Resilient flooring as a web typically comprises a bottom, thermally stable underlayer or mat layer which is coated with one or more layers of similarly formulated polymer compounds. For aesthetic reasons, a color layer is typically also disposed between the polymer layers and the polymer layers can optionally be chemically or mechanically embossed. Similarly, resilient tile flooring is typically formed as a laminated composite structure having a base layer, a decorative layer disposed on the base layer, a protective film layer disposed on the decorative layer, and a topcoat disposed on the protective film layer , For aesthetic reasons, the tile may also be mechanically embossed to impart a desired surface texture or pattern.
    At present, both conventional elastic sheet and tiled floor coverings use vinyl polymers, e.g. Polyvinylchloride plastisols, polyvinyl chloride homopolymers, and polyvinyl chloride acetate resin as a major component in the various sub and composite layers described above. However, these conventional vinyl flooring systems have some known disadvantages. For example, the long-term appearance of an installed elastic floor depends on its dimensional stability, which relates to the ability of the tile or the web over which
    Useful life of the flooring to maintain their original dimensions and to withstand shrinkage. That is, conventional vinyl polymers are unable to provide the requisite dimensional stability necessary to maintain an acceptable long-term appearance and useful life of an installed elastic bottom. In order to improve dimensional stability, various chemical stabilizers and fiber-based additives including synthetic fibers, fillers, binders, resin and glass have been incorporated into these polymer systems. Unfortunately, however, these additives and stabilizers also result in an increased price of the final product. In addition, it is also known that vinyl polymers, when the concentration of additives such as e.g. Fillers and fibers is increased, have limited flexural and impact resistance properties. This is particularly problematic because increasing the filler concentration not only increases dimensional stability but is also a recognized means of improving fire suppression, thermal insulation and also the sound deadening properties of the floor covering.
    Still further, the installation of elastic I flooring typically requires the use of an adhesive to secure the flooring to the underlying underbody structure. Many conventional commercial adhesives are chemically incompatible with vinyl polymers and in some cases will not provide the necessary adhesion. In even more extreme cases, certain adhesives will chemically react with the vinyl polymers, resulting in complete degradation of the resilient flooring. Therefore, it has become necessary to provide specially formulated adhesives which are chemically compatible chemically with conventional vinyl resilient floor coverings. Understandably, this creates additional installation expenses, which are desirably avoided.
    Resilient flooring also has a limited lifetime and must eventually be replaced, with the resulting flooring used usually being sent to landfill. The plethora of flooring waste that accumulates annually is a burden on landfill capacity and has a negative impact on the environment. In order to reduce the impact of used resilient flooring on the environment, and to recover some of the financial loss due to disposal of useful scrap, the recycling of resilient flooring would appear to be a logical solution. However, the presence of vinyl polymers in resilient floor coverings adds expense to recycling efforts. In particular, vinyl polymers must first be mechanically separated from the vast quantities of dissimilar polymers and inorganic materials that are commonly present in resilient floor coverings. In addition, the cost of grinding and remixing these resins is usually prohibitive when compared to the significantly lower cost of virgin vinyl resins.
    Recently, and perhaps most importantly, there are significant health and safety concerns associated with the use of vinyl polymer systems in resilient floor covering systems. As noted above, vinyl flooring products often contain additional chemicals to alter the chemical or physical properties of the product. For example, For example, phthalate plasticizers are traditionally added to make PVC systems more elastic. There are concerns that these additives will be washed out of the vinyl products over time. In addition, there are concerns that vinyl flooring will eventually release harmful gases into the air. Some studies suggest that outgassing can contribute to health complications. In the face of these concerns, certain are aimed
    Jurisdictions now contemplate legislation which prohibits the use of certain vinyl polymers, e.g. PVC in various consumer goods because of the hazards they pose to human and environmental health.
    In view of these disadvantages, some in the flooring industry have begun to seek suitable replacement for conventional vinyl systems in the manufacture of resilient floor coverings. An alternative is the use of ordinary thermoplastic polyolefins.
    Various methods are available to
    Apply polyolefin support materials, which include powder coating, hot melt application and extruded film or Folienlaminierung. However, using ordinary polyolefins can also present difficulties. For example, For example, ordinary polyolefin resins have insufficient adhesion to use in elastic floor construction. In addition, ordinary polyolefins have relatively high application viscosities and relatively high heat requirements. That is, ordinary thermoplastic polyolefins are characterized by having relatively high melt viscosities and high recrystallization and solidification temperatures. Even ordinary elastomeric polyolefins, i. Polyolefins, which have low crystallinity, usually have relatively high viscosities and relatively high recrystallization temperatures.
    One method of overcoming the viscosity and recrystallization deficiencies of conventional polyolefins is to formulate the polyolefin resin as a hot melt, which is usually associated with low molecular weight polyolefins with waxes, tackifiers, various flow modifiers, and / or other elastomeric ones Materials are formulated. Unfortunately, hot melt systems can provide considerable
    Require formulating and yet often achieve insufficient cleavage strengths. However, the most significant defect of a typical hot melt system is its melt strengths, which are usually too low to allow use in a direct extrusion coating process 5. As such, polyolefin hot melt systems are typically employed in relatively slow, less efficient processes, such as e.g. in the use of heated doctor blades or rotary melt transfer rolls.
    Although high density, low density non-formulated polyethylenes (LDPE) can be used in a conventional extrusion coating process, LDPE resins typically have poor elasticity, which can lead to exaggerated stiffness. Conversely, those ordinary polyolefins which have improved elasticity, e.g. Ultra low density polyethylene (ULDPE) and ethylene / propylene interpolymers, still insufficient in elasticity, have exceedingly low melt strengths and / or tend to be in tensile resonance during extrusion coating. In order to overcome extrusion coating difficulties, ordinary polyolefins having sufficient elasticity can be used in i lamination processes; Lamination processes, however, are typically expensive and can lead to prolonged production rates as compared to direct extrusion coating processes.
    There remains a need for resilient floor coverings which do not contain vinyl polymers. In other words, it would be desirable to provide a non-vinyl resilient floor covering that can be made in a manner and with equipment similar to those used to make conventional vinyl resilient floor coverings. Likewise, there continues to be a need for a vinyl-free resilient flooring which is dimensionally stable and adequate
    Irrespective of the concentration of inorganic filler that might be present. Still further, there is a need for a vinyl-free resilient flooring that is capable of being recycled with greater ease than conventional vinyl flooring products. Finally, there is also a need for vinyl-free resilient flooring that is considered safe without being associated with health and public safety concerns for the environment.
    I summary
    Described herein are resilient floor coverings configured to be placed on a floor in a selected orientation. In one aspect, the resilient floor coverings may have a backing member, a decorative member, and a wear layer. In a further aspect, the support member may include more than one support layer. In an additional aspect, the decorative part may include a color layer and / or a decorative layer. Optionally, the resilient floor coverings may have one or more tie layers located between the support member and the decor part and / or between the decor part and the wear layer.
    Detailed description of the figures
    These and other properties of the preferred
    Embodiments of the invention will become more apparent in the detailed description in which reference is made to the appended drawings wherein: FIG
    Figures 1-5 illustrate structures of the vinyl-free elastic flooring products described herein.
    i
    Detailed description of the invention
    The present invention can be more readily understood by reference to the following detailed description, examples, drawings and claims, and the foregoing and following description.
    However, before disclosing and describing the subject devices, systems and / or methods, it is to be understood that this invention is not limited to the specific devices, systems and / or methods disclosed unless otherwise noted of course, can vary. It is also to be understood that the terminology used herein is for the purpose of describing particular aspects only and is not intended to be limiting.
    The following description of the invention is provided as an executable teaching of the invention in its best currently known i embodiment. To this end, those skilled in the art will recognize and understand that many changes may be made to the various aspects of the invention described herein while still obtaining the beneficial results of the present invention. It will also be apparent that some of the desirable advantages of the present invention can be obtained by selecting some of the characteristics of the present invention without using other properties. Thus, those skilled in the art will recognize that many modifications and adaptations to the present invention are possible and even desired in certain circumstances and are a part of the present invention. Therefore, the following description is provided as an illustration of the principles of the present invention and not as a limitation thereof.
    The singular forms "a", "an", "an" and "the", "the", "the", as used herein include the plural referents unless the context clearly dictates otherwise in front. Therefore, e.g. one
    Reference to a "tube" two or more such tubes, unless the context indicates otherwise.
    Ranges may be expressed herein as being from "about" a particular value, and / or "to about" another particular value. When such a range is expressed, another aspect of the one includes a particular value and / or the other particular value. Likewise, when expressing values as approximations using the reference word "about", it should be understood that the particular value forms another aspect. It is further understood that the endpoints of each region are significant both in relation to the other endpoint and independent of the further endpoint.
    The terms "optional" or "optional" as used herein mean that the subsequently described event or circumstance may or may not occur, and that the description includes cases where the event or circumstance occurs and cases where he / she does not enter.
    In one embodiment, the invention relates to a resilient floor covering which is configured for placement on a floor in a selected orientation. In one aspect, and with reference to FIG. 1, the resilient floor covering may comprise a support part, a decorative part and a wear layer.
    In one aspect, the support portion of the resilient floor covering may have a bottom surface and an opposite top surface. In this aspect, the lower surface of the support member may be configured to substantially abut the floor when the resilient flooring is placed in the selected orientation. In a further aspect, the carrier part may have at least one carrier layer. It is contemplated that a backing layer of the at least one backing layer may define the bottom surface of the backing member. It is further contemplated that a backing layer of the at least one backing layer may define the topmost surface of the backing member. In one aspect, the at least one carrier layer may comprise a single carrier layer. Optionally, the at least one carrier layer may comprise a plurality of carrier layers.
    In a further aspect, the decorative part of the resilient floor covering may have a lower surface and an opposite uppermost surface. In one aspect, the decorative part may have a color layer. In this aspect, the color layer may define the uppermost surface of the decorative part. Optionally, the ink layer may also define the lower surface of the decorative part. In an additional aspect, the decorative part may be configured to overlay the carrier part. In this aspect, the decorative part may be substantially adjacent to the support part so that the uppermost surface of the support part contacts the lower surface of the decorative part. It is contemplated that the color layer may be applied either directly or indirectly to the uppermost surface of the support portion of the floor covering 1. Alternatively, the decorative part may be spaced from the carrier part.
    In a further aspect, it is contemplated that the color layer may comprise any conventional ink, dye, pigment or other marking substance which may be applied within the resilient flooring in a desired pattern. For example, and, without limitation, the color layer may comprise water-based, soy-based, and / or solvent-based pigments selected to operably adhere to the underlying decorative layer. In a particular example, the ink layer may include inks and pigments made by Sun Chemical Corporation.
    In addition, it is contemplated that the color layer may be applied to the underlying decorative layer by any conventional printing device including, without limitation, rotogravure, flexographic, lithographic, offset lithographic, relief, thermographic,
    Thermosublimation pressure, dye sublimation pressure, heat transfer pressure, and the like.
    In another aspect, the wear layer may have an exposed outer surface and an opposing lower surface I. In this aspect, the outer surface of the wear layer may be configured for exposure to the surrounding environment. In another aspect, the wear layer may be configured to substantially overlay the decorative portion of the flooring. It is contemplated that the wear layer may abut the decorative part so that the uppermost surface of the decorative part contacts the lower surface of the wear layer. Alternatively, the wear layer may be spaced from the decorative part. In one aspect, the wear layer may be e.g. and without limitation, conventional ionomers, polyethylene terephthalates (PET), polyurethane, polypropylene, polytrimethylene terephthalate (PTT), nylon 6, I nylon 6,6, and the like. It is contemplated that the wear layer may be Surlyn resin, e.g. and, without limitation, Surlyn® 1706 resin manufactured by E.I. du Pont de Nemours and Company, Inc. In another aspect, the wear layer may be embossed with a desired surface texture pattern.
    Optionally, the resilient flooring may comprise at least one bonding layer. In one aspect, the at least one tie layer may be located between opposing layers of the resilient flooring to otherwise bond dissimilar materials that form the otherwise opposing layers of the flooring. It will be understood by those skilled in the art that such dissimilar materials may have intrinsic properties that adversely affect the ability of the corresponding materials to join or otherwise adhere to one another.
    In one aspect, one or more tie layers of the at least one tie layer may be located between the bottom surface of the wear layer and the top surface of the decorative part of the floor covering. In a further aspect, a bonding layer of the at least one bonding layer may be located between the lower surface of the decorative part and the uppermost surface of the backing part. In an additional aspect, each bonding layer of the I may comprise at least one bonding layer e.g. and without limitation polyethyleneimine (FEI), conventional acrylic materials, maleic anhydride (MAH), ethylene methyl acrylate (EMA), ethylene vinyl acetate (EVA) and the like. It is contemplated that the at least one tie layer Entira ™ modifier and additives such as e.g. and, without limitation, Entira ™ Coat 100 modifier and additive, available from E.I. du Pont de Nemours and Company, Inc.. It is further contemplated that the at least one tie layer has water-dilutable coating primers, including e.g. and without) Restriction G-680 primer made by Mica Corporation.
    In a further aspect and with reference to Figures 2 to 5, the decorative part of the floor covering may have a decorative layer. In this aspect, the decorative layer may have a desired aesthetic appearance, e.g. and have without limitation the appearance of imitation hardwood or ceramic flooring. In one aspect, the decorative layer may define the bottom surface of the decorative part of the flooring. In an additional aspect, the color layer may be configured to substantially overlay the decorative layer. In this aspect, the decorative layer may be adjacent to the color layer. In another aspect, the decorative layer may comprise a film. In yet another aspect, the decorative layer may be e.g. and without limitation oriented polypropylene (OPP), polypropylene (PP) film, polyethylene (PE) film, PET film, oriented PET film, PTT film, nylon film, woven polyethylene (PE), non-woven or non-woven Nonwoven PE, woven polypropylene (PP), nonwoven PP, woven PET, nonwoven PET, woven nylon, nonwoven nylon, conventional papers, conventional films, and the like.
    In another aspect, the decorative layer of the decorative part may comprise a three-layered film, e.g. and, without limitation, a SynDECOR® OPP film manufactured by Applied Extrusion Technologies Inc. In this aspect, the three-layered film may have an uppermost skin, a central core, and a lower skin. In one aspect, the top skin may be configured to be compatible with the color layer of the decorative part of the floor covering. It is contemplated that at least a portion of the color layer may be applied to the top skin of the three-layer film. In another aspect, the central core of the three-layer film may comprise a solid material. In this aspect, the solid material may be substantially opaque. In this aspect, an opaque film can be used. Such an exemplary opaque film is desired because it can create a color barrier between the decorative layer and the subsequent backing layers which "may vary in color. In another aspect, the bottom skin of the three-layer film may be configured to be compatible with the post-industrial carpet and / or post-consumer carpet materials that form part of the one or more primary backing layers.
    In an additional aspect, the at least one carrier layer of the carrier part may comprise one or more main carrier layers or primary carrier layers and a secondary carrier layer or secondary carrier layers. In this aspect, the sub-carrier layer may define the lower surface of the carrier part and the one or more main carrier layers may be configured to substantially overlay the sub-carrier layer. In another aspect, the one or more main carrier layers may be e.g. and, without limitation, low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), EMA, EVA, PE-PP rubber, conventional thermoplastic elastomers I (TPEs), conventional thermoplastic olefins (TPOs), alpha-olefin-polyethylene copolymers , PET, ethylene butyl acrylate (EBA) and the like. In another aspect, the sub-carrier layer may be e.g. and without limitation OPP, woven PE, nonwoven PE, woven PP, nonwoven PP, woven i PET, nonwoven PET, woven nylon, nonwoven nylon and the like.
    In one aspect, the one or more main carrier layers may include a first main carrier layer and a second main carrier layer. In this aspect, the first main support layer may define the upper surface of the support member. Optionally, in another aspect, the support member may comprise a glass fiber layer located between the first and second main support layers.
    In one aspect, the one or more major carrier layers may include post-industrial carpet composites and / or composites
    Post-consumer carpet. In this aspect, the main carrier layer of the one or more main carrier layers may define the upper surface of the carrier part of the floor covering.
    In yet another aspect and as in United States patent! Application 11 / 963,263, which is incorporated herein by reference in its entirety, may include at least one of
    Carrier layers are formed from substantially linear ethylene polymers and homogeneously branched linear ethylene polymers (i.e., homogeneously branched ethylene polymers) having a low solidification temperature, good polypropylene adhesion, and a low modulus compared to conventional ethylene polymers such as e.g. Low-density polyethylene (LDPE), heterogeneously branched linear low-density polyethylene (LLDPE), high-density polyethylene (HDPE) and heterogeneously branched Ultralow density polyethylene (ULDPE). Exemplary carrier layers formed from the disclosed homogeneously branched I ethylene polymers are shown in the figures as EcoWorx.
    The use of substantially linear ethylene polymers as a support layer in the flooring may allow the elimination of sub-base materials and thereby lead to significant manufacturing cost savings. In addition, flooring having a substantially linear ethylene polymer or homogeneously branched linear ethylene polymer layer can provide a substantial fluid and particulate barrier which enhances the hygienic properties of the flooring.
    The preferred homogeneously branched ethylene polymer has a single melting peak between -30 ° C and 150 ° C as determined by Differential Scanning Calorimetry. The most preferred homogeneously branched ethylene polymer is a substantially linear ethylene polymer which is characterized by having i: (a) a melt flow rate, I-10 / I2> 5.63;
    (B) a molecular weight distribution MJMn as determined by gel permeation chromatography and determined by the equation:
    (C) such a gas extrusion rheology has that the critical shear rate at the onset of surface melt fracture in the substantially linear ethylene polymer is at least 50% greater than the critical shear rate at the onset of surface melt fracture for a linear ethylene polymer wherein the linear ethylene polymer is homogeneously branched Short chain branching distribution and no long chain branching, and wherein the substantially linear ethylene polymer and the linear ethylene polymer are at the same time ethylene homopolymers or interpolymers of ethylene and at least one C3-C2o α-olefin and have the same L2 and Mw / Mn and wherein the corresponding critical shear rates of the substantially linear ethylene polymer and linear ethylene polymer are measured at the same melting temperature by means of a gas extrusion rheometer;
    (D) has a single differential scanning calorimetry, DSC, melting peak between -30 ° C and 150 ° C.
    The homogeneously branched ethylene polymers used in the present invention are characterized by a single DSC melting peak. The single melting peak is determined using a differential scanning calorimeter standardized with indium and deionized water. The method involves 5-7 mg sample sizes, a "first heat" up to about 140 ° C held for 4 minutes, a 107 ° C to -30 ° C cooling which is held for 3 minutes, and heating 10 ° C / min to 150 ° C as "second heat". The single melting peak is taken from the "second heat" heat flow versus temperature curve. The total melting half of the polymer is calculated from the area under the curve.
    For polymers having a density of from 0.860 g / cc to 0.910 g / cc, the single melting peak, depending on instrument sensitivity, may exhibit a "shoulder" or "hump" on the low melt side, which is less than 12%. , typically less than 9%, and more typically less than 6%, of the total melting half of the polymer. Such artifact may be used in other homogeneously branched polymers such as e.g. Exact ™ -> resins, and is detected at the base of the slope of the single melting peak, which changes monotonically over the melting range of the artifact. Such an artifact occurs within 34 ° C, typically within 27 ° C, and more typically within 20 ° C of the melting point of the single melt peak i. The enthalpy of fusion, which can be attributed to the artifact, can be determined separately by specifically integrating the area associated with it under the heat flux vs. temperature curve.
    The molecular weight distribution (Mw / Mn) of the substantially linear ethylene polymers and homogeneous linear ethylene polymers used in the present invention is usually about 1.8 to 2.8. It is also contemplated that, unlike homogeneous and heterogeneously branched linear ethylene polymers, the melt flow rate (I10 / I2) of substantially linear ethylene polymers can be essentially changed independently of their molecular weight distribution Mw / Mn.
    Suitable homogeneously branched ethylene polymers for use in the present invention include interpolymers of ethylene and at least one α-olefin prepared by a solution, gas phase or slurry polymerization process or combinations thereof. Suitable α-olefins are represented by the following formula:
    CH2 == CHR
    Wherein R is a hydrocarbyl radical. In addition, R may be an i-hydrocarbyl radical having from 1 to 20 carbon atoms, and as such, the formula includes C 3 -C 20 -α-olefins. Suitable α-olefins for use as comonomers include propylene, 1-butene, 1-isobutylene, 1-pentene, 1-hexene, 4-methyl-1-pentene, 1-heptene and 1-octene, as well as other comonomer types such as e.g. Styrene, halo- or 'alkyl-substituted styrenes, tetrafluoroethylenes, vinylbenzocyclobutenes, 1,4-hexadienes, 1,7-octadienes and cycloalkenes, e.g. Cyclopentenes, cyclohexenes and cyclooctenes. Preferably, the comonomers will be 1-butene, 1-pentene, 4-methyl-1-pentene, 1-hexene, 1-heptene, 1-octene, or mixtures thereof, since adhesive support materials having higher alpha-olefins will be especially improved To be tough. Most preferably, however, the comonomer will be 1-octene and the ethylene polymer will be prepared in a solution process.
    In another aspect, it is contemplated that the density of the substantially linear ethylene polymer or homogeneously branched linear ethylene polymer measured in accordance with ASTM D-792 does not exceed 0.92 g / cm 3, and usually in the range of about 0.85 g / cm3 is up to about 0.92 g / cm3, preferably from about 0.86 to 0.91 g / cm3, and especially from about 0.86 g / cm3 to about 0.90 g / cm3.
    In another aspect, the molecular weight of the homogeneously branched linear ethylene polymer or ethylene polymer is usually determined by melt flow measurement according to ASTM D-1238, condition 190 ° C / 2.16 kg (formerly known as "Condition (E)"). and also known as h). The melt index is inversely proportional to the molecular weight of the polymer. Therefore, the higher the molecular weight, the lower the melt index, though the relationship is not linear. In various aspects, the melt index of the homogeneously branched linear ethylene polymers or of the substantially linear ethylene polymers is generally about 1 g / 10 min (g / 10 min) to about 500 g / 10 min, preferably about 2 g / 10 min to about 300 g / 10 minutes, more preferably about 5 g / 10 minutes to about 100 g / 10 minutes, especially about 10 g / 10 minutes to about 50 g / 10 minutes, and most preferably about 25 to about 35 g / 10 minutes.
    Another measurement useful for characterizing the molecular weight of the homogeneously linear ethylene polymer or im
    Substantially linear ethylene polymer is usually indicated using a melt index measurement according to ASTM D-1238, Condition 190 ° C / 10 kg (formerly known as "Condition (N)" and also known as ho). The ratio of the ho and h melt index terms is 3 the melt flow rate and is referred to as ho / b. For the substantially linear ethylene polymer, the ho / b ratio indicates the degree of long chain branching, i. the higher the ho / b ratio, the more long chain branches are in the polymer. The I10 / I2 ratio of the substantially linear ethylene polymer is 5 at least 6.5, preferably at least 7, especially at least 8. The ho / h ratio of the homogeneously branched linear ethylene polymer is usually less than 6.3.
    Preferred ethylene polymers for use in the present invention have a relatively low modulus. That is, the ethylene polymer is characterized as having a 2% secant modulus of less than 24,000 psi (163.3 MPa), especially less than 19,000 psi (129.3 MPa), and most particularly less than 14,000 psi ( 95.2 MPa) as measured according to ASTM D790.
    Preferred ethylene polymers for use in the present invention are substantially amorphous or totally amorphous.
    That is, the ethylene polymer is characterized by having a crystallinity content of less than 40%, preferably less than 30%, more preferably less than 20, and most preferably less than 10%, as measured by dynamic differential scanning calorimetry is calculated by the equation percent
    Crystallinity = Hf / 292 * 100, where Hf is the enthalpy of fusion in Joules / g.
    The homogeneously branched ethylene polymer may be used alone or it may be fused or blended with one or more synthetic or natural polymeric materials. Suitable polymers for fusing or blending with homogeneously branched ethylene polymers used in the present invention include, but are not limited to, other homogeneously branched ethylene polymers, low density polyethylene, I heterogeneous branched LLDPE, heterogeneously branched ULDPE, medium density Polyethylene, high density polyethylene, grafted polyethylene (eg, a maleic anhydride extrusion grafted heterogeneously branched linear low density polyethylene or a maleic anhydride extrusion grafted homogeneously branched i Ultralow density polyethylene), ethylene acrylic acid copolymer,
    Ethylene vinyl acetate copolymer, ethylene ethyl acrylate copolymer,
    Polystyrene, polypropylene, polyester, polyurethane, polybutylene, polyamide, polycarbonate, gums, ethylene-propylene polymers, ethylene-styrene polymers, styrene-block copolymers, and vulcanizates.
    Methods of making the elastic flooring described herein are also disclosed. In one aspect, a method of making the resilient flooring described herein may include providing the backing as described herein. Optionally, in another aspect, the method of making the elastic floor covering described herein may include applying the decorative part to the topmost surface of the support part. In an alternative aspect, the method of making the resilient flooring described herein may include applying a tie layer as described herein to the top surface of the backing member. In this aspect, the method of making the elastic flooring described herein may include applying the decorative part to the bonding layer that is applied to the backing part. It is contemplated that the bottom surface of the decorative member may be applied substantially directly to the topmost surface of the backing member or to the tie coat applied to the backing member. It is also contemplated that the bottom surface of the decorative member may be applied to the top surface of the backing member or to the tie coat applied to the backing member using a chemical adhesive, mechanical bond or other application means.
    Optionally, in an additional aspect, the method for producing resilient floor coverings described herein may include applying the wear layer to the topmost surface of the trim piece. In an alternative aspect, the method of making resilient floor coverings described herein may include applying one or more tie layers described herein to the top surface of the trim piece. In this aspect, the method of making elastic floor coverings described herein may include applying the wear layer to the tie layer applied to the trim piece. It is contemplated that the wear layer may be applied substantially directly to the uppermost surface of the decorative member or to the tie coat applied to the decorative member. It is also contemplated that the wear layer may be applied to the uppermost surface of the decorative part or to the tie layer applied to the decorative part using a chemical adhesive, a mechanical bond or other application means.
    ! It is contemplated that the illustrated layers may be fashioned or otherwise formed by conventional methods and / or processes. Likewise, it is contemplated that the respective layers may be interconnected in sequential or non-contiguous order. Unless otherwise stated, no particular order of product formation operations is needed to practice the present invention. It is further contemplated that any conventional means of forming or joining layers of a layered construct such as the illustrated resilient flooring may be used, including without limitation extrusion, lamination, combinations thereof, and the like. Finally, it is contemplated that after the layers of flooring have been joined together, the resulting composite flooring sheet can be cut to the desired shape and size, for example, without limitation, in plank or tile form, conventional or non-standard. conventional sizes and shapes may have.
    In one aspect, as disclosed herein, the materials selected for the respective layers of the flooring can be easily recycled. It is contemplated that one or more of the respective layers may comprise recycled post-consumer and / or post-industrial carpet, such as, but not limited to, recycled post-consumer and / or post-industrial carpet polymer materials. In this aspect, the molded flooring can minimize the use of virgin materials and advantageously permit the use of already recycled materials for molding the recyclable flooring of the present invention.
    An illustrated method of making the resilient flooring, initially referring to Figures 2-4, may include the step of adhering the one or more paint layers to the topmost surface of the film / decorative layer by conventional means. Thereafter, a tie layer may be subsequently applied to the top surface of the color layers, if desired or if the materials forming the corresponding color layers and wear layer require the use of a tie layer. Optionally, the tie layer may be extruded or laminated to the topmost surface of the color coat. In the example shown in FIG. 4, the film / decorative layer has the three-layer AET SynDECOR® OPP film, and the ink layer has Sun Ink with Hartmann pigments. In this particular example, two consecutive tie layers are applied, Mica G680, which contacts the uppermost surface of the color coat, and Entira ™ Coat 100, which is applied to the uppermost surface of the Mica G680 tie coat.
    Subsequently, thereafter, the first layer of the main carrier is extruded or otherwise bonded to the lower surface of the film / decorative layer, and a glass fiber mat layer is embedded in the lower surface of the first carrier layer. Of course, prior to this step, if required, an optional tie layer may be bonded to the bottom surface of the film / decor layer.
    Thereafter, a wear layer is extruded or otherwise bonded to either the top surface of the paint layer or the top surface of the top tie layer. It is contemplated that, if needed, the application of the tie layer to the topmost surface of the color coat and the application of the wearer layer to the top tie layer of the color coat may be done sequentially in a coextrusion process. For example, in Figure 4, the Entira ™ Coat 100 tie layer and the Surlyn® 1706 wear layer may be sequentially applied to the top surface of the underlying Mica G680 tie layer.
    In the next exemplary following step, a second
    Layer of the main carrier extruded thereon or otherwise connected to the lower surface of the glass fiber mat layer to completely encapsulate the glass fiber layer. In an example, referring to FIGS. 3 and 4, the respective first and second layers of the main carrier may comprise the EcoWorx material described herein. Thereafter, if desired, a secondary support, such as the illustrated non-woven PP secondary support, may be extruded thereon or otherwise bonded to the lower surface of the second layer of the main support.
    Of course, as noted in Figures 2 and 3, an optional bonding layer could be applied to the bottom surface of the film / decor layer, if desired or if the materials forming the film / decor layer and the first layer of the primary backing otherwise unable to connect effectively. As noted in Figure 4, no tie layer was needed to effect the desired bond between the three-layer AET SynDECOR® OPP film (the film / decor layer) and the EcoWorx material (the first layer of the main backing).
    In another example, and now referring to the specific example illustrated in Figure 5, initially the Sun Ink with Hartmann pigment layer is applied to the uppermost surface of the three-layer AET SynDECOR® OPP film. Subsequently, the first main carrier layer of EcoWorx is applied to the lower surface of the three-layer AET SynDECOR® OPP film and the glass fiber material is applied to the lower surface of the first main carrier layer of EcoWorx. Then the Entira ™ Coat 100 Bonding Layer is applied to the Sun Ink layer and the Surlyn® 1706 Wear Layer is applied to the uppermost surface of the Entira ™ Coat 100 Bonding Layer. Finally, the second main carrier layer of EcoWorx is subsequently applied to the glass fiber material layer, whereby the nonwoven PP secondary carrier layer adheres to the lower surface of the glass fiber material layer.
    Although some embodiments of the invention have been disclosed in the foregoing description, it will be understood by those skilled in the art that many modifications and other embodiments of the invention pertaining to the invention are contemplated and which have the benefit of the foregoing description and the It is therefore to be understood that the invention is not limited to the specific embodiments disclosed hereinabove and that many modifications and others are intended
    To include embodiments within the scope of the appended claims. Furthermore, while specific terms are used herein as well as in the claims that follow, they are used in a generic and descriptive sense only and not for the purpose of limiting neither the invention described nor the claims that follow.
    权利要求:
    Claims (31)
    [1]
    An elastic floor covering having a support member having an uppermost surface and an opposing lower surface configured to substantially abut the floor when the resilient flooring is placed in the selected orientation, and wherein the support member is at least a carrier layer, wherein the at least one carrier layer of the carrier part can have one or more main carrier layers; a decorative member having an uppermost surface and an opposing lower surface, the decorative member configured to superimpose the support member so that the uppermost surface of the support member contacts the lower surface of the decorative member, and the decorative member has a coloring layer; and a wear layer having an exposed outer surface configured for exposure to the surrounding environment and having an opposing lower surface configured to overlie the decorative portion of the flooring.
    [2]
    2. An elastic floor covering according to claim 1, wherein a carrier layer of the at least one carrier layer defines the lower surface of the carrier part, and wherein a carrier layer of the at least one carrier layer defines the uppermost surface of the carrier part.
    [3]
    3. An elastic floor covering according to claim 1, wherein the one or more main carrier layer comprises a first main carrier layer and a second main carrier layer.
    [4]
    The elastic floor covering of claim 1, wherein the one or more main support layers comprise at least one of low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), EMA, EVA, PE-PP rubber, conventional thermoplastic elastomers (TPEs ), conventional thermoplastic olefins (TPOs), alpha-olefin polyethylene copolymers, PET, or ethylene butyl acrylate (EBA).
    [5]
    6. Elastic floor covering according to claim 2, wherein the at least one support layer further comprises a secondary support layer.
    [6]
    The resilient floor covering of claim 5, wherein the secondary support layer defines the lower surface of the support member and the one or more main support layer may be configured to substantially overlay the subcurtain layer.
    [7]
    The resilient floor covering of claim 6, wherein the secondary support layer comprises at least one of OPP, woven PE, nonwoven PE, woven PP, nonwoven PP, woven PET, nonwoven PET, woven nylon, or nonwoven nylon.
    [8]
    The elastic floor covering of claim 3, wherein the support member further comprises a glass fiber layer located between the first and second main support layers.
    [9]
    The resilient floor covering of claim 1, wherein a main support layer of the one or more main support layers defines the uppermost surface of the support part of the flooring.
    [10]
    11. An elastic floor covering as claimed in claim 1, wherein at least one of the support layers comprises substantially linear ethylene polymers and homogeneously branched linear ethylene polymers.
    [11]
    The elastic floor covering of claim 10, wherein at least one of the support layers further comprises other homogeneously branched ethylene polymers, low density polyethylene, heterogeneously branched LLDPE, heterogeneously branched ULDPE, medium density polyethylene, high density polyethylene, grafted polyethylene, ethylene acrylic acid Copolymer, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, polystyrene, polypropylene, polyester, polyurethane,
    [12]
    13. Polybutylene, polyamide, polycarbonate, rubbers, ethylene propylene polymers, ethylene styrene polymers, styrene block copolymers, or vulcanizates.
    [13]
    14. An elastic floor covering according to claim 1, wherein the color layer defines the uppermost surface of the decorative part.
    [14]
    15. An elastic floor covering according to claim 1, wherein the color layer defines the lower surface of the decorative part.
    [15]
    The elastic floor covering of claim 1, wherein the color layer comprises colors selected from the group consisting of water-based, soy-based or solvent-based pigments.
    [16]
    17. An elastic floor covering according to claim 1, wherein the wear layer is located adjacent to the decorative part, that the uppermost surface of the decorative part touches the lower surface of the wear layer.
    [17]
    18. An elastic floor covering according to claim 15, wherein the wear layer comprises at least one of polyethylene terephthalate (PET), polyurethane, polypropylene, polytrimethylene terephthalate (PTT), nylon 6, or nylon 6,6.
    [18]
    The elastic floor covering of claim 1, further comprising at least one bonding layer, the at least one bonding layer configured to be located between opposing layers of the resilient flooring to form otherwise dissimilar materials that together form the otherwise opposing layers of flooring; connect to.
    [19]
    20. An elastic floor covering according to claim 17, wherein one or more bonding layers of the at least one bonding layer are located between the lower surface of the wear layer and the uppermost surface of the decorative part of the floor covering.
    [20]
    21. An elastic floor covering according to claim 17, wherein one or more bonding layers of the at least one bonding layer are located between the lower surface of the decorative part and the uppermost surface of the support part.
    [21]
    The elastic floor covering of claim 17, wherein the bonding layer comprises at least one of water-dilutable coating primers, polyethyleneimine (PEI), conventional acrylic materials, maleic anhydride (MAH), ethylene methyl acrylate (EMA), ethylene vinyl acetate (EVA).
    [22]
    23. An elastic floor covering according to claim 1, wherein the decorative part has a decorative layer.
    [23]
    The resilient floor covering of claim 21, wherein the decorative layer defines the bottom surface of the decorative portion of the flooring, and wherein the color layer is configured to substantially overlay the decorative layer.
    [24]
    The resilient floor covering of claim 21, wherein the decorative layer is at least one of oriented polypropylene (OPP), woven polyethylene (PE), nonwoven PE, woven polypropylene (PP), nonwoven PP, woven PET, nonwoven PET, woven nylon , non-woven nylon, conventional papers, and conventional films.
    [25]
    26. A method for producing an elastic floor covering, which comprises providing a support part having a topmost surface and an opposing bottom surface, and configured to substantially abut the floor when the elastic floor covering in the in which the carrier part has at least one carrier layer, wherein the at least one carrier layer of the carrier part can have one or more main carrier layers; that the decorative part is applied to the uppermost surface of the carrier part, and that the wear layer is applied to the uppermost surface of the decorative part.
    [26]
    27. The method of claim 24, further comprising applying a bonding layer to the uppermost surface of the backing member, wherein the decorative member is applied to the bonding layer applied to the backing member.
    [27]
    28. The method of claim 25, wherein the lower surface of the decorative part is applied substantially directly on the uppermost surface of the support member or on the applied on the support member binding layer
    [28]
    29. The method of claim 24, further comprising applying one or more tie layers to the top surface of the decorative member, wherein the wear layer is applied to the tie coat applied to the decorative member.
    [29]
    30. The method according to claim 27, wherein the wear layer is applied substantially directly on the uppermost surface of the decorative part or on the applied on the decorative part binding layer.
    [30]
    The resilient floor covering of claim 1, wherein the one or more main support layers comprise post-industrial carpet composites and / or post-consumer carpet composites.
    [31]
    32. The method of claim 24, wherein the one or more main carrier layer comprises post-industrial carpet composites and / or post consumer carpet composites.
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    同族专利:
    公开号 | 公开日
    JP2016104966A|2016-06-09|
    CN102277945B|2015-01-21|
    JP2018141365A|2018-09-13|
    US8859085B2|2014-10-14|
    JP2011236733A|2011-11-24|
    US20130333821A1|2013-12-19|
    CN102277945A|2011-12-14|
    US9359773B2|2016-06-07|
    JP2020076318A|2020-05-21|
    US20110268933A1|2011-11-03|
    KR101974216B1|2019-04-30|
    KR20110121596A|2011-11-07|
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    优先权:
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    US33000610|2010-04-30|
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