US20140295195A1 - Biobased resilient floor tile - Google Patents
Biobased resilient floor tile Download PDFInfo
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- US20140295195A1 US20140295195A1 US14/306,323 US201414306323A US2014295195A1 US 20140295195 A1 US20140295195 A1 US 20140295195A1 US 201414306323 A US201414306323 A US 201414306323A US 2014295195 A1 US2014295195 A1 US 2014295195A1
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- biobased
- base layer
- flooring product
- resilient flooring
- polyester
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
- E04F15/107—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials composed of several layers, e.g. sandwich panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/14—Layered products comprising a layer of synthetic resin next to a particulate layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/025—Particulate layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/02—Synthetic macromolecular particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/06—Vegetal particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2272/00—Resin or rubber layer comprising scrap, waste or recycling material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/75—Printability
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2419/00—Buildings or parts thereof
- B32B2419/04—Tiles for floors or walls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2471/00—Floor coverings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
- Y10T428/3179—Next to cellulosic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
- Y10T428/31797—Next to addition polymer from unsaturated monomers
Definitions
- the present invention relates to resilient flooring products and more particularly to a biobased resilient floor tile.
- the calculation of the amount of biobased content in the material or product is important for ascertaining whether the material or product, when used in commercial construction, would qualify for Leadership in Energy and Environmental Design (LEED) certification.
- the US Green Building Council has established a LEED rating system which sets forth scientifically based criteria for obtaining LEED certification based on a point system. As shown in Table 1, under the LEED rating system, for new construction 1 point is granted for at least 5% wt of the total of post-consumer materials and 1 ⁇ 2 post-industrial materials. A second point is granted for at least 10% wt of the total of post-consumer materials and 1 ⁇ 2 post-industrial materials. An additional point is granted for at least 5% wt of rapidly renewable building materials and products.
- FIG. 1 is a cross-sectional view of a biobased resilient floor tile according to an embodiment of the invention.
- FIG. 1 shows a resilient flooring product according to an embodiment of the invention.
- the resilient flooring product shown and described herein is a biobased resilient floor tile 1 .
- the biobased resilient floor tile 1 comprises at least one base layer 2 , at least one film layer 3 , and a topcoat 4 .
- the resilient flooring product is not limited to the structure shown and described herein.
- the resilient flooring product may comprise additional base layers and/or additional film layers and/or may be provided without the topcoat 4 .
- at least one of the film layers may be clear and/or back printed.
- the thickness of the base layer 2 , the film layer 3 , and the topcoat 4 may be varied depending on the desired characteristics of the resilient flooring product.
- the formulation listed as EX-13 in Table 2 was mixed in a Baker Perkins type mixer and the hot mix was dropped into the nip of a two roll calender.
- the rolls of the calender were set at different temperatures wherein one roll was hotter than the other.
- the hot roll was set at about 285 degrees Fahrenheit
- the cold roll was set at about 240 degrees Fahrenheit.
- the nip opening between the calender mill rolls were set to provide a final sheet thickness of about 123 mils.
- the base layer 2 may be prepared using a high intensity heated mixer, such as an extruder or Farrell type mixer, that operates at a higher temperature than the low intensity mixer.
- the film layer 3 may be provided with a topcoat 4 .
- the topcoat 4 is coated in a liquid or flowable form onto the film at a thickness of about 1 mil and then cured. It is known to cure the topcoat 4 by controlled exposure to radiation, such as ultraviolet or electron beam radiation.
- the topcoat 4 may be, for example, a radiation curable coating, such as acrylated urethane or acrylated polyester.
- the topcoat 4 may be a radiation curable biobased coating comprising a biobased component.
- the film layer 3 is laminated to the base layer 2 .
- the film layer 3 may be laminated, for example, with a press for about 5 minutes at 265 degrees Fahrenheit under about 1000 psi of pressure.
- the film layer 3 is then cooled to about 100 degrees Fahrenheit while still under about 1000 psi of pressure.
Abstract
Description
- This application claims priority from U.S. patent application Ser. No. 12/432,907, filed Apr. 30, 2009, which in turn claims the benefit of priority from U.S. Provisional Application Ser. No. 61/125,975, filed Apr. 30, 2008; the contents of which are hereby incorporated herein by reference, in their entireties.
- The present invention relates to resilient flooring products and more particularly to a biobased resilient floor tile.
- Resilient flooring products, such as residential tiles, typically have at least one layer made from polymeric binders, such as polyvinyl chloride. However, the use of polyvinyl chloride is argued to pose a threat to human and environmental health due to its effect on the recycling stream. Not only is polyvinyl chloride not typically recyclable due to the prohibitive cost of regrinding and re-compounding the resin, but also, polyvinyl chloride is manufactured using fossil fuels, such as petroleum and coal, which additionally negatively impacts the environment.
- In response to the growing controversy over the manufacture, use, and disposal of polyvinyl chloride, commercial efforts been made to develop materials and polymers from other resources. For example, efforts have been made to use functionalized polyolefins, such as ethylene acrylic acid co-polymers, and other polyolefin materials as polymeric binders for flooring products. Due to the chemical composition of polyolefin, however, conventional adhesives and waxes can not be used on flooring products formed with polymeric binders made from polyolefin materials. Additionally, polyolefin is also manufactured using fossil fuels, such as petroleum and coal, which negatively impacts the environment.
- Polymeric binders, therefore, still need to be developed which can be used with existing product structures and/or processes while being derived from recycled materials or renewable resources, such as biobased materials. Recycled materials are materials that have been recovered or otherwise diverted from the solid waste stream, either during the manufacturing process (pre-consumer), or after consumer use (post-consumer). Recycled materials therefore include post-industrial, as well as, post-consumer materials. Biobased materials are organic materials containing an amount of non-fossil carbon sourced from biomass, such as plants, agricultural crops, wood waste, animal waste, fats, and oils. Biobased materials formed from biomass processes have a different radioactive C14 signature than those produced from fossil fuels. Because the biobased materials are organic materials containing an amount of non-fossil carbon sourced from biomass, the biobased materials may not necessarily be derived 100% from biomass. A test has therefore been established for determining the amount of biobased content in the biobased material. Generally, the amount of biobased content in the biobased material is the amount of biobased carbon in the material or product as a fraction weight (mass) or percentage weight (mass) of total organic carbon in the material or product.
- The calculation of the amount of biobased content in the material or product is important for ascertaining whether the material or product, when used in commercial construction, would qualify for Leadership in Energy and Environmental Design (LEED) certification. The US Green Building Council has established a LEED rating system which sets forth scientifically based criteria for obtaining LEED certification based on a point system. As shown in Table 1, under the LEED rating system, for new construction 1 point is granted for at least 5% wt of the total of post-consumer materials and ½ post-industrial materials. A second point is granted for at least 10% wt of the total of post-consumer materials and ½ post-industrial materials. An additional point is granted for at least 5% wt of rapidly renewable building materials and products. For existing building 1 point is granted for at least 10% wt post-consumer materials. A second point is granted for at least 20% wt of post-industrial materials. An additional point is granted for at least 50% wt of rapidly renewable materials. Thus, flooring products meeting the LEED criteria can be used to obtain points for LEED certification.
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TABLE 1 LEED Rating System Rating LEED - Version 2.1 Rating LEED - Version 2.0 System New Construction System Existing Building MR Credit = 5% wt of post- MR Credit = 10% wt of post- 4.1 consumer materials + ½ 2.1 consumer materials 1 Point post-industrial materials 1 Point MR Credit = 10% wt of post- MR Credit = 20% wt of post- 4.2 consumer materials + ½ 2.1 industrial materials 1 Point post-industrial materials 1 Point MR Credit = 5% wt of rapidly MR Credit = 50% wt of rapidly 6 renewable building 2.5 renewable materials 1 Point materials and products 1 Point - Because there has been renewed market interest in giving preference to “greener” flooring products based upon the LEED rating system, there remains a need to develop “greener” flooring products based upon existing product structures and/or processes and available recycled and/or renewable materials. The key to this approach is to integrate recycled materials and/or rapidly renewable materials, such as biobased materials, into polymeric binder systems for resilient flooring products thereby reducing reliance on limited resources, such as fossil fuels.
- The invention relates to a resilient flooring product comprising at least one base layer including a polymeric binder and a filler. The base layer has at least about 20-95% weight of the filler and at least about 5% weight of recycled material.
- The invention further relates to a resilient flooring product comprising at least one base layer, at least one film layer, and a topcoat. The base layer includes a polymeric binder and a filler. The base layer has at least about 20-95% weight of the filler and at least about 5% weight of recycled material. The film layer is supported by the base layer. The film layer is a rigid film selected from the group consisting of polyethyleneterephthalate, glycolated polyethyleneterephthalate, polybutylene terephthalate, polypropylene terephthalte, or a thermoplastic ionomer resin. The film layer includes recycled material. The topcoat is provided on the film layer. The topcoat is a radiation curable biobased coating comprising a biobased component selected from the group consisting of a biobased resin, a biobased polyol acrylate, or a biobased polyol.
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FIG. 1 is a cross-sectional view of a biobased resilient floor tile according to an embodiment of the invention. -
FIG. 1 shows a resilient flooring product according to an embodiment of the invention. The resilient flooring product shown and described herein is a biobased resilient floor tile 1. As shown inFIG. 1 , the biobased resilient floor tile 1 comprises at least onebase layer 2, at least onefilm layer 3, and atopcoat 4. It will be appreciated by those skilled in the art, however, that the resilient flooring product is not limited to the structure shown and described herein. For example, the resilient flooring product may comprise additional base layers and/or additional film layers and/or may be provided without thetopcoat 4. Additionally, at least one of the film layers may be clear and/or back printed. Further, the thickness of thebase layer 2, thefilm layer 3, and thetopcoat 4 may be varied depending on the desired characteristics of the resilient flooring product. - In the illustrated embodiment, the
base layer 2 comprises a polymeric binder and a filler. The polymeric binder may be, for example, a thermoplastic polyester resin including at least one recyclable or renewable component. As used in this disclosure, “thermoplastic” means a polymer that softens when exposed to heat and returns to its original condition when cooled to room temperature, whereas “thermoset” means a polymer that solidifies or sets irreversibly when heated. Thermoset is usually associated with a cross-linking reaction of the molecular constituents induced by heat or radiation. The polymeric binder or the polyester resin may also contain functional groups that could involve dynamic vulcanization with other active additives during the manufacturing processes. The functional groups may be, for example, acid or hydroxyl groups. The active additives could be an epoxy, amine, isocyanate containing compounds, oligomers, or polymers. The epoxy may be, for example, epoxidized natural oils, such as epoxidized soy oils, epoxidized linseed oils, vernonia oil, or combinations thereof. The polyester resin may be, for example, amorphous, or crystalline and may contain, for example, aromatic and/or aliphatic diacid and diol components. The polyester resin may also be of a high molecular weight. An example of a suitable polyester resin includes, for example, the commercially available polyester resin ECOFLEX FBX7011 manufactured by BASF SE of Ludwigshafen, Germany, which is a high molecular weight, biodegradable, aliphatic-aromatic copolyester based on butanediol, adipic acid, and terephthalic acid exhibiting a Tg of about −25 degrees Celsius and a Tm of about 115 degrees Celsius. Other examples of suitable polyester resins are disclosed, for example, in U.S. Patent Application Publication No. 2008/0081882 A1, which is hereby incorporated by reference in its entirety. - The filler may be, for example, limestone, talc, or other minerals. The filler may be a recyclable or renewable material. Recycled fillers generated from post-industrial processes include limestone, quartz, ceramic powders, glass, fly ash, concrete powder, and other minerals. Additionally, recyclable fillers may be obtained from wood or plants, such as pecan shells, wood flour, saw dust, walnut shells, rice hulls, corn cob grit, and others. Other post-industrial or renewable fillers include inorganic fillers, such as ground shells from animals, for example, clams and coral, which contain biobased content. Recycle thermoset resin based fillers can also be employed. For example, powders produced by grinding thermoset polyester materials, such as products made from bulk molding compounds (BMC) or sheet molding compounds (SMC) can be post-industrial, as well as post-consumer materials. Another thermoset material of interest is recycled fillers made from urea formaldehyde thermoset resins. Depending upon the source, these materials can also be post-industrial or post-consumer. Another example includes ground, cured (cross-linked) rubber materials such as used in tires. These rubbers materials can be based on natural or synthetic rubbers, polyurethanes, or other well known thermoset rubber compositions. Additionally, recycled thermoplastic resin based materials may be employed as fillers if they are incompatible with the polyester binder. For example, polyethylene (PE), polypropylene, polyamide, polyester, polystyrene, polycarbonate, acrylonitrile butadiene styrene, and thermoplastic rubbers may be incompatible with the high molecular weight polyester binder. Such materials, if added as particulate will essentially function as fillers in these compositions. The
base layer 2 contains for example, about 20-95% weight of the filler, preferably about 40-90% weight of the filler, and more preferably about 50-85% weight of the filler. Additionally, the use of different sized limestone filler yields better processibility and improved performance. - Table 2 shows some examples of some base layer formulations. In Table 2, the AWI polyester is an Armstrong World Industries, Inc.'s amorphous polyester. Examples of AWI polyesters are described in Tables 5C-5D of U.S. Patent Application Publication No. 2008/0081882 A1, which was previously incorporated by reference in its entirety. Specifically, the AWI polyester of Table 2 is EX-36 from U.S. Patent Application Publication No. 2008/0081882 A1. A plurality of the base layer formulations in Table 2 contains a weight percentage of recycled material of at least about 5% and more preferably at least about 10%.
- Additionally, a plurality of the base layer formulations in Table 2 contains a weight percentage of biobased content of at least about 3% and more preferably at least about 9%. The use of recycle fillers in the base layer formulations therefore allows the biobased resilient floor tile 1 to qualify for at least one point within the LEED System.
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TABLE 2 Base Layer Formulations EX-1 EX-2 EX-3 EX-4 Ex-5 EX-6 Trade Amt Amt Amt Amt Amt Amt Ingredient Name (g) (g) (g) (g) (g) (g) Limestone Imerys 82.10 68.73 68.73 0 0 0 DP-04 Recycled SYCX 16.67 16.67 20.84 20.84 20.84 0 Limestone 3359 Limestone Vical 0 0 0 85.91 90.91 106.75 5030 Pigment Kronos 0.60 0.60 0.75 0.75 0.75 0.75 2220 Polyester AWI 7.00 0 8.75 8.75 6.25 8.75 Polyester Polyester Ecoflex 7.00 14.00 8.75 8.75 6.25 8.75 FBX7011 Total 100.00 100.00 125.00 125.00 125.00 125.00 Wt % 10.0 10.0 10.0 10.0 10.0 0 Recycled Material Wt % 9.0 0 9.0 9.0 9.0 9.0 Biobased Content Wt % 14.0 14.0 14.0 14.0 10.0 14.0 Binder Wt % 83.53 86.0 86.0 86.0 90.0 86.0 Filler Mixer 351 351 351 351 351 351 Temp (° F.) Batch 8:30 8:30 8:00 8:00 8:00 8:06 Time (min) Mix Drop 366.8 370.4 381.2 388.4 375.8 386.6 Temp (° F.) EX-7 EX-8 EX-9 EX-10 EX-11 EX-12 EX-13 Trade Amt Amt Amt Amt Amt Amt Amt Ingredient Name (g) (g) (g) (g) (g) (g) (g) Limestone Imerys 0 0 0 0 0 0 849.0 DP-04 Recycled SYCX 0 0 0 0 0 0 0 Limestone 3359 Limestone Vical 111.75 106.75 111.75 85.92 90.92 125.16 0 5030 Pigment Kronos 0.75 0.75 0.75 0.75 0.75 0.84 6.0 2220 Polyester AWI 6.25 0 0 0 0 0 72.50 Polyester Polyester Ecoflex 6.25 17.50 12.50 17.50 12.50 14.00 72.50 FBX7011 Total 125.0 125.0 125.0 125.0 125.0 140.0 1000 Wt % 0 0 0 10.0 10.0 10.0 0 Recycled Material Wt % 9.0 0 0 0 0 0 9.0 Biobased Content Wt % 10 14 10 14 10 10 14.5 Binder Wt % 90 86 90 86 90 90 85.5 Filler Mixer 351 351 351 351 351 351 320 Temp (° F.) Batch 8:00 8:00 8:00 8:00 8:00 8:00 15:00 Time (min) Mix Drop 374.0 419.0 386.6 419.0 386.6 408.2 270.0 Temp (° F.) - The base layer formulations of EX-1-EX-12 in Table 2 were mixed using a medium intensity Haake Rheocord 9000 heated mixer (Haake mixer). The ingredients were added to the Haake mixer which was heated to about 351 degrees Fahrenheit. The formulations were mixed and heated for approximately 8 minutes on average in the Haake mixer to a drop temperature of about 389 degrees Fahrenheit on average. Depending upon the formulation, mixing time varied between 8-8.5 minutes and drop temperature varied between about 366-419 degrees Fahrenheit. A low intensity heated mixer, such as “dough” mixer or Baker Perkins type mixer may be used to compound and melt mix the formulation which is subsequently calendered into the
base layer 2. The formulation listed as EX-13 in Table 2 was mixed in a Baker Perkins type mixer and the hot mix was dropped into the nip of a two roll calender. The rolls of the calender were set at different temperatures wherein one roll was hotter than the other. Typically, the hot roll was set at about 285 degrees Fahrenheit, and the cold roll was set at about 240 degrees Fahrenheit. The nip opening between the calender mill rolls were set to provide a final sheet thickness of about 123 mils. Alternatively, thebase layer 2 may be prepared using a high intensity heated mixer, such as an extruder or Farrell type mixer, that operates at a higher temperature than the low intensity mixer. - Since formulations based solely on ECOFLEX FBX7011 in pellet form can not be adequately mixed in the low intensity mixer, the base layer formulations of Table 2 are based on blends of the AWI polyester and ECOFLEX FBX7011. Because there is not enough heat transfer and shear within the mix to breakdown the pellet form of the ECOFLEX FBX7011, the addition of the AWI polyester enables the physical nature of the mix to change thereby allowing the ECOFLEX FBX7011 to be incorporated. The
base layer 2 may also include other ingredients such as processing aids, tackifiers, hydrophobic agents, stabilizers, colorants and other known additives. Of particular interest, thebase layer 2 may also contain up to 30% by weight of one or more additional polymers or reactive additives. The additional polymers may assist in processing in the low intensity mixer, and also may assist in achieving improved physical properties. The additional polymers may consist of hydroxyl functionalized polymers, such as hydroxyl end-capped polyester, and may also consist of acid functionalized polymers including excitatory amino acids, ethylene methyl acrylate, and partially neutralized versions thereof (ionomers), or other (methacrylic) acrylic acid, or maleic acid (anhydride) copolymers to obtain desired process and physical properties. The functionalized polymers may enhance physical properties by dynamically reacting with the active additives during the manufacturing process, such as during mixing and calendering. - The
film layer 3 may be, for example, a rigid film comprised of polyethyleneterephthalate (PET), glycolated polyethyleneterephthalate (PETG), polybutylene terephthalate (PBT), polypropylene terephthalte (PPT), or a thermoplastic ionomer resin, such as SURLYN from E. I. du Pont de Nemours and Company. “Rigid film” is a term of art which means any film that is substantially free of plasticizers, e.g., phthalate esters, thereby imparting resistance of the polymer to deform. Thefilm layer 3 may consist, for example, of recycled material, such as recycled polyethyleneterephthalate or polybutylene terephthalate modified by renewable polyesters, as described in US Patent Application Publication No. 2008/0081882 A1, which is hereby incorporated by reference in its entirety. - The
film layer 3 may be provided with atopcoat 4. Thetopcoat 4 is coated in a liquid or flowable form onto the film at a thickness of about 1 mil and then cured. It is known to cure thetopcoat 4 by controlled exposure to radiation, such as ultraviolet or electron beam radiation. Thetopcoat 4 may be, for example, a radiation curable coating, such as acrylated urethane or acrylated polyester. Alternatively, thetopcoat 4 may be a radiation curable biobased coating comprising a biobased component. The biobased component may be, for example, a biobased polyol, acylated biobased polyol, or biobased resin derived, for example, from renewable and/or biobased materials, such as plant oils, polyester, polyester-ether, vegetable oils, corn, cellulose, starch, sugar, or sugar alcohols. Examples of suitable radiation curable biobased coatings are disclosed in U.S. patent application Ser. No. 12/432,845 and U.S. Patent Application Ser. No. 61/173,996, which are hereby incorporated by reference in their entireties. Additionally, it will be appreciated by those skilled in the art that although thetopcoat 4 is shown and described herein as being a single layer topcoat, that thetopcoat 4 could alternatively be a multiple layer topcoat. - After the
topcoat 4 is applied to thefilm layer 3, thefilm layer 3 is laminated to thebase layer 2. Thefilm layer 3 may be laminated, for example, with a press for about 5 minutes at 265 degrees Fahrenheit under about 1000 psi of pressure. Thefilm layer 3 is then cooled to about 100 degrees Fahrenheit while still under about 1000 psi of pressure. - The foregoing illustrates some of the possibilities for practicing the invention. Many other embodiments are possible within the scope and spirit of the invention. It is, therefore, intended that the foregoing description be regarded as illustrative rather than limiting, and that the scope of the invention is given by the appended claims together with their full range of equivalents.
Claims (20)
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US14/306,323 US20140295195A1 (en) | 2008-04-30 | 2014-06-17 | Biobased resilient floor tile |
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US14/306,323 US20140295195A1 (en) | 2008-04-30 | 2014-06-17 | Biobased resilient floor tile |
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US12/432,907 Continuation US20090274919A1 (en) | 2008-04-30 | 2009-04-30 | Biobased Resilient Floor Tile |
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US14/306,323 Abandoned US20140295195A1 (en) | 2008-04-30 | 2014-06-17 | Biobased resilient floor tile |
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US12/432,907 Abandoned US20090274919A1 (en) | 2008-04-30 | 2009-04-30 | Biobased Resilient Floor Tile |
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US (2) | US20090274919A1 (en) |
EP (1) | EP2271487B8 (en) |
JP (1) | JP2011523685A (en) |
KR (1) | KR20110018887A (en) |
CN (1) | CN102046369A (en) |
AU (1) | AU2009241730B2 (en) |
BR (1) | BRPI0911887A2 (en) |
WO (1) | WO2009134403A1 (en) |
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WO2022211704A1 (en) * | 2021-03-30 | 2022-10-06 | Ceraloc Innovation Ab | Method and assembly for manufacturing a board element comprising a recycled material |
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Also Published As
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CN102046369A (en) | 2011-05-04 |
EP2271487B1 (en) | 2017-06-07 |
EP2271487A4 (en) | 2011-11-16 |
JP2011523685A (en) | 2011-08-18 |
EP2271487B8 (en) | 2017-08-09 |
AU2009241730A1 (en) | 2009-11-05 |
EP2271487A1 (en) | 2011-01-12 |
US20090274919A1 (en) | 2009-11-05 |
KR20110018887A (en) | 2011-02-24 |
WO2009134403A1 (en) | 2009-11-05 |
AU2009241730B2 (en) | 2014-06-26 |
BRPI0911887A2 (en) | 2015-10-13 |
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