EP3859078A1 - Cuir artificiel en copolymère d'éthylène-propylène et son procédé de fabrication - Google Patents

Cuir artificiel en copolymère d'éthylène-propylène et son procédé de fabrication Download PDF

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Publication number
EP3859078A1
EP3859078A1 EP21153866.5A EP21153866A EP3859078A1 EP 3859078 A1 EP3859078 A1 EP 3859078A1 EP 21153866 A EP21153866 A EP 21153866A EP 3859078 A1 EP3859078 A1 EP 3859078A1
Authority
EP
European Patent Office
Prior art keywords
layer
epm
artificial leather
foaming
fabric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP21153866.5A
Other languages
German (de)
English (en)
Inventor
Chih-Yi Lin
Kuo-Kuang Cheng
Chi-chin CHIANG
Chi-Wei Chang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
San Fang Chemical Industry Co Ltd
Original Assignee
San Fang Chemical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by San Fang Chemical Industry Co Ltd filed Critical San Fang Chemical Industry Co Ltd
Publication of EP3859078A1 publication Critical patent/EP3859078A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/045—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyolefin or polystyrene (co-)polymers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0043—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/18—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
    • D06N3/183—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials the layers are one next to the other
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2203/00—Macromolecular materials of the coating layers
    • D06N2203/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N2203/042—Polyolefin (co)polymers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/10—Clothing
    • D06N2211/106—Footwear
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • D06N2211/28—Artificial leather
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2213/00—Others characteristics
    • D06N2213/03—Fibrous web coated on one side with at least two layers of the same polymer type, e.g. two coatings of polyolefin

Definitions

  • the present disclosure relates to an artificial leather and a manufacturing method, and more particularly to an artificial leather made by environmentally-friendly processes, and a manufacturing method thereof.
  • Conventional artificial leather may be manufactured by a dry process or a wet process.
  • the wet process involves impregnating or coating a textile with a resin solution including resin (e.g., polyurethane), organic solvent (e.g., dimethylformamide), surfactant, colorant, filler, etc. Then, the organic solvent may be replaced by water, so as to form pores in the resin.
  • the resin is then solidified, thus forming the conventional artificial leather.
  • a resin solution is coated on a release material. After it is dried, a paste is applied on the resin, and the resin is attached to a textile. The resin is then matured at a specific temperature, and the release material is removed to obtain the conventional artificial leather.
  • An improvement of the aforementioned processes may include heat press laminating or extrusion laminating polyurethane onto a textile.
  • the resultant artificial leather is heavy, and has a stiff hand feel and rubber-like appearance. It is also uncomfortable to wear, and not completely recyclable.
  • the present disclosure provides an artificial leather which can be manufactured by environmentally-friendly processes.
  • the artificial leather is light-weight, and provides a favorable hand feel and leather-like appearance.
  • the artificial leather is also comfortable to wear, and is completely recyclable.
  • the present disclosure provides an artificial leather including a fabric layer and an ethylene-propylene copolymer (EPM) layer attached to the fabric layer.
  • the EPM layer is an EPM composite layer including an EPM foaming layer and an EPM surface layer.
  • the present disclosure further provides a method for manufacturing the aforementioned artificial leather including: providing the fabric layer; providing the EPM layer; and attaching the EPM layer to the fabric layer.
  • the present disclosure further provides a shoe structure including the aforementioned artificial leather.
  • FIG. 1 illustrates a cross-sectional view of an artificial leather 1 according to a first embodiments of the present disclosure.
  • the artificial leather 1 includes a fabric layer 11 and an ethylene-propylene copolymer (EPM) layer 12 attached to the fabric layer 11.
  • EPM ethylene-propylene copolymer
  • the artificial leather of the present disclosure may be used in clothing, shoes, hats, accessories, furniture, wall decorations, etc., or raw materials or semi-finished products.
  • the artificial leather may be used in handicrafts or for other purposes, which are not limited by the present disclosure.
  • the artificial leather may be a part of a shoe structure, such as a part of or the entire shoe upper in the shoe structure.
  • the fabric layer may be any type of fabrics, such as woven fabrics or nonwoven fabrics.
  • the fabric layer is a nonwoven fabric.
  • nonwoven fabric used in the present disclosure refers to a sheet, web or bat manufactured by directionally or randomly oriented fibers, bonded by friction, and/or cohesion and/or adhesion, excluding paper or products which are woven, knitted, tufted stitch bonded incorporating binding yarns or filaments, or felted by wet milling, whether or not additionally needled.
  • the fibers may be of natural or man-made origin. They may be staple or continuous filaments or may be formed in situ.
  • the nonwoven fabric usually includes a composite nonwoven fabric, a needle-punched nonwoven fabric, a melt-blown nonwoven fabric, a spun bonded nonwoven fabric, a dry-laid nonwoven fabric, a wet-laid nonwoven fabric, a stitch-bonded nonwoven fabric, or a spun lace nonwoven fabric.
  • the fabric layer provides a soft hand feel similar to real leather.
  • the fiber layer comprises a plurality of fibers.
  • the fibers are made of at least one material selected from the group consisting of polyene, polyamide, poly(p-phenylene terephthalamide), polyolefin, polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), polytrimethylene terephthalate(PTT), polybutylene terephthalate (PBT), polyacrylonitrile (PAN), and a mixture thereof.
  • FIG. 2 illustrates a cross-sectional view of an artificial leather 2 according to a second embodiment of the present disclosure.
  • the artificial leather 2 also includes a fabric layer 21 and an EPM layer, while the EPM layer is an EPM composite layer 22.
  • the EPM composite layer 22 includes an EPM foaming layer 221 and an EPM surface layer 222.
  • the fabric layer 21 is attached to the EPM foaming layer 221.
  • the EPM surface layer 222 is disposed on a surface of the EPM foaming layer 221 opposite to the fabric layer 21. That is, the EPM foaming layer 221 has a first surface and a second surface opposite to the first surface.
  • the fabric layer 21 is attached to the first surface of the EPM foaming layer 221, and the EPM surface layer 22 is disposed on the second surface of the EPM foaming layer 221.
  • a manner of foaming the EPM foaming layer may be chemically foaming or physically foaming, wherein the chemically foaming manner uses an agent capable of conducting a chemical reaction to yield gas, with the gas evenly distributed in the EPM.
  • the physically foaming manner includes infiltrating gas or supercritical carbon dioxide into the EPM, and making the gas evenly distributed in the EPM by stirring to form the EPM foaming layer. Since the EPM foaming layer includes foaming pores, it is capable of replacing the polyurethane used in the conventional artificial leather, especially the wet-process polyurethane.
  • the EPM foaming layer can provide a thick and rich hand feel similar to the wet-process polyurethane.
  • the EPM is lighter in weight at the same thickness.
  • the foaming density reduction rate (density after foaming/density before foaming) of the EPM foaming layer is about 40% to about 90%.
  • the EPM foaming layer includes a plurality of independent pores.
  • a diameter of the pores in the EPM foaming layer is about 20 ⁇ m to about 150 ⁇ m, preferably about 50 ⁇ m to about 120 ⁇ m, and more preferably about 70 ⁇ m to about 100 ⁇ m.
  • the EPM foaming layer is capable of providing a thick, rich and bouncy hand feel similar to real leathers.
  • the EPM foaming layer has a thickness of about 0.10 mm to about 0.70 mm, preferably 0.25 mm to about 0.55 mm, and more preferably about 0.30 mm to about 0.40 mm.
  • a hardness of the EPM foaming layer is about 50 A to about 80 A, preferably about 55 A to about 75 A, and more preferably about 60 A to about 70 A.
  • a melting point of the EPM foaming layer is about 60°C to about 200°C, preferably about 100°C to about 190°C, and more preferably about 130°C to about 170°C.
  • the EPM surface layer presents a texture on a surface opposite to the EPM foaming layer. That is, the EPM surface layer has a first surface facing the EPM foaming layer and a second surface opposite to the first surface. The texture is presented on the second surface of the EPM surface layer.
  • a method for forming the texture may include transfer printing using a release material or a mold having a corresponding texture, but is not limited thereto.
  • a thickness of the EPM surface layer is about 0.10 mm to about 0.50 mm, preferably about 0.20 mm to about 0.40 mm, and more preferably 0.30 mm to about 0.35 mm.
  • a hardness of the EPM surface layer is 50 A to about 95 A, preferably about 55 A to about 80 A, and more preferably about 65 A to about 75 A.
  • a melting point of the EPM surface layer is about 60°C to about 200°C, preferably about 100°C to about 190°C, and more preferably about 130°C to about 170°C.
  • a ratio of the thickness of the EPM surface to the thickness of the EPM foaming layer is about 9:1 to about 1:9, preferably about 5:1 to about 1:5, and more preferably about 3:1 to about 1:3.
  • the EPM layer further includes an EPM adhesive layer
  • the fabric layer is attached to the EPM layer through the EPM adhesive layer.
  • FIG. 3 illustrates a cross-sectional view of an artificial leather 3 according to a third embodiment of the present disclosure.
  • the artificial leather 3 also includes a fabric layer 31 and an EPM layer, while the EPM layer is an EPM composite layer 32.
  • the EPM composite layer 32 includes an EPM foaming layer 321, an EPM surface layer 322, and an EPM adhesive layer 323.
  • the fabric layer 31 is attached to the EPM layer (e.g., the EPM composite layer 32) through the EPM adhesive layer 323.
  • the fabric layer 31 is attached to the EPM foaming layer 321 by the EPM adhesive layer 323, and the EPM surface layer 322 is disposed on a surface of the EPM foaming layer 321 opposite to the fabric layer 31. That is, the EPM adhesive layer 323 and the EPM surface layer 322 are respectively disposed on two opposite surfaces of the EPM foaming layer 321.
  • the EPM adhesive layer 323 is a hot-melt adhesive.
  • a hardness of the EPM adhesive layer is about 50 A to about 85 A, preferably about 55 A to about 80 A, and more preferably about 60 A to about 75 A.
  • a melting point of the EPM adhesive layer is about 50°C to about 140°C, preferably about 55°C to about 130°C, and more preferably about 60°C to about 110°C.
  • the fabric layer is attached to the EPM foaming layer by another adhesive layer.
  • the other adhesive layer is a hot-melt adhesive, more preferably a hot-melt adhesive of EPM. That is, the adhesive layer may not be a part of the EPM layer or the EPM composite layer.
  • the artificial leather further includes a covering layer disposed on a surface of the EPM layer opposite to the fabric layer. That is, the EPM layer has a first surface and a second surface opposite to the first surface.
  • the fabric layer is attached to the first surface of the EPM layer, and the covering layer is disposed on the second surface of the EPM layer.
  • FIG. 4 illustrates a cross-sectional view of an artificial leather according to a fourth embodiment of the present disclosure.
  • the artificial leather 4 includes a fabric layer 41, an EPM layer (e.g., an EPM composite layer 42) and a covering layer 43.
  • the EPM composite layer 42 includes an EPM foaming layer 421, an EPM surface 422, and an EPM adhesive layer 423.
  • the fabric layer 41 is attached to the EPM foaming layer 421 by the EPM adhesive layer 423, and the EPM surface layer 422 is disposed on a surface of the EPM foaming layer 421 opposite to the fabric layer 41.
  • the covering layer 43 is disposed on a surface of the EPM surface layer 422 opposite to the EPM foaming layer 421 or the fabric layer 41.
  • the EPM composite layer may only include, or be composed of, an EPM foaming layer and an EPM surface layer.
  • the covering layer of the present disclosure includes, but is not limited to, polyurethane, thermoplastic polyurethane, polyolefin or thermoplastic polyolefin.
  • the polyurethane is an aqueous polyurethane.
  • the covering layer may optionally present textures or have microstructures on its surface, or may include pigments.
  • the artificial leather of the present disclosure is mainly made of EPM.
  • the fabric layer made of polyolefin is used, the artificial leather is completely made of polyolefin materials, and thus is completely recyclable.
  • the artificial leather of the present disclosure has leather-like hand feel, and excellent physical properties and abrasion resistance.
  • the torsion resistance strength of the artificial leather can reach 2.5 kgf/cm or more.
  • the artificial leather of the present disclosure is light-weight and soft, and is suitable for all kinds of applications, especially shoes.
  • the present disclosure further provides a method for manufacturing the aforementioned artificial leather, including: providing the fabric layer; providing the EPM layer; and attaching the EPM layer to the fabric layer.
  • the EPM layer is an EPM composite layer including an EPM foaming layer and an EPM surface layer.
  • the method includes forming the EPM foaming layer and the EMP surface layer concurrently.
  • "forming the EPM foaming layer and the EMP surface layer concurrently” may be achieved by co-extruding the EPM foaming layer and the EPM surface layer.
  • the co-extrusion process includes, but is not limited to, drying the materials of the EPM foaming layer and/or the EPM surface layer; melting the aforementioned materials; co-extruding the materials using a die (e.g., a T-die); and cooling the materials to a predetermined thickness.
  • a release material may be applied to a surface of the EPM layer during the co-extrusion process (e.g., before the cooling step), such that the surface texture of the release material can be transfer printed on the EPM surface layer.
  • the EPM composite layer further includes an EPM adhesive layer. Accordingly, the method may include co-extruding the EPM foaming layer, the EPM surface layer and the EPM adhesive layer.
  • the EPM adhesive layer is a hot-melt adhesive.
  • the method includes heat press laminating the EPM adhesive layer to the fabric layer, such that the EPM composite layer is attached to the fabric layer through the EPM adhesive layer.
  • the method includes extrusion laminating the EPM foaming layer to the fabric layer, such that the EMP layer (e.g., the EPM composite layer) is attached to the fabric layer.
  • the EMP layer e.g., the EPM composite layer
  • the method includes attaching the EPM layer to the fabric layer by another adhesive layer.
  • the other adhesive layer is a hot-melt adhesive, more preferably a hot-melt adhesive of EPM.
  • the method further includes providing a covering layer, and attaching the covering layer to a surface of the EPM layer opposite to the fabric layer.
  • the method of the present disclosure can avoid the use of organic solvents in the manufacturing process of the conventional artificial leather. Hence, the method of the present disclosure meets the 2020 ZDHC (Zero Discharge of Hazardous Chemicals) requirements. Furthermore, the method of the present disclosure is simpler and faster than the conventional wet process.
  • the present disclosure further provides a shoe structure including the aforementioned artificial leather.
  • the artificial leather may be a part of or the entire shoe upper in the shoe structure. That is, the artificial leather a can be combined with the sole and other parts to form the shoe structure.
  • the EPM was dried to a moisture content of about 300 ppm or lower.
  • the EPM surface layer was extrusion laminated to a nonwoven fabric, and was cooled by cooling rollers.
  • the speed of the laminating rollers was set at 3.0 m/min, thus forming an artificial leather of EPM having a thickness of about 0.8 mm.
  • the artificial leather was pressed by embossing rollers having a surface temperature of 100°C, thus forming the surface-textured artificial leather of EPM.
  • the EPM was dried to a moisture content of about 300 ppm or lower.
  • the temperature of the T-die was set at 185°C.
  • the metering pumps of the component A and the component B were set so that the thickness ratio of the EPM surface layer and the EPM foaming layer was 1:3.
  • the EPM surface layer and the EPM foaming layer were cooled by laminating rollers.
  • the speed of the laminating rollers was set at 3.0 m/min, thus forming an EPM composite layer (including the EPM surface layer and the EPM foaming layer) having a thickness of about 0.4 mm.
  • the thickness of the EPM surface layer was about 0.1 mm, and the thickness of the EPM foaming layer was about 0.3 mm.
  • the EPM composite layer was attached to a polyolefin nonwoven fabric by 0.1 mm EPM hot-melt adhesive, thus forming the artificial leather.
  • the attaching process was conducted using a heat roll laminator with a roll surface temperature of 100°C.
  • the EPM was dried to a moisture content of about 300 ppm or lower.
  • EPM adhesive layer (component C): 150°C, 185°C, 180°C
  • the temperature of the T-die was set at 185°C.
  • the metering pumps of the component A, the component B and the component C were set, so that the thickness ratio of the EPM surface layer, the EPM foaming layer and the EPM adhesive layer is 1:7:1.
  • the EPM surface layer, the EPM foaming layer and the EPM adhesive layer were cooled by laminating rollers.
  • the speed of the laminating rollers was set at 2.5 m/min, thus forming an EPM composite layer (including the EPM surface layer, the EPM foaming layer and the EPM adhesive layer) having a thickness of about 0.9 mm.
  • the thickness of the EPM surface layer was about 0.1 mm
  • the thickness of the EPM foaming layer was about 0.7 mm
  • the thickness of the EPM adhesive layer was about 0.1 mm.
  • a water-based polyurethane covering layer was applied to the EPM surface layer.
  • the EPM composite layer was attached to a polyolefin nonwoven fabric through the 0.1 mm EPM adhesive layer, thus forming the artificial leather.
  • the attaching process was conducted using a heat roll laminator with a roll surface temperature of 100°C.
  • the EPM surface layer was extrusion laminated to a nonwoven fabric, and was cooled by cooling rollers.
  • the speed of the laminating rollers was set at 3.0 m/min, thus forming an artificial leather of EPM having a thickness of about 0.8 mm.
  • the artificial leather was further pressed by embossing rollers having a surface temperature of 100°C, thus forming the surface-textured artificial leather of EPM.
  • the EPM containing TPV with different contents can provide the artificial leather with improved mechanical properties and hand feel.
  • Test result of Example 4 TPV content 0% 10% 20% 30% 50% Peel strength (kg/cm) 3.2 3.5 3.7 3.4 3.8 Flex fatigue resistance (cycles) 5,000 20,000 50,000 80,000 100,000

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Laminated Bodies (AREA)
EP21153866.5A 2020-01-31 2021-01-27 Cuir artificiel en copolymère d'éthylène-propylène et son procédé de fabrication Withdrawn EP3859078A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW109103114 2020-01-31

Publications (1)

Publication Number Publication Date
EP3859078A1 true EP3859078A1 (fr) 2021-08-04

Family

ID=74346869

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21153866.5A Withdrawn EP3859078A1 (fr) 2020-01-31 2021-01-27 Cuir artificiel en copolymère d'éthylène-propylène et son procédé de fabrication

Country Status (3)

Country Link
US (1) US20210238798A1 (fr)
EP (1) EP3859078A1 (fr)
CN (1) CN113201941A (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1272129A (en) * 1968-08-28 1972-04-26 Toray Industries Press-moulded cross-linked polymeric foams and a process for producing the same
EP1882715A1 (fr) * 2005-05-18 2008-01-30 Toray Industries, Inc. Mousse de resine de polyolefine reticulee
WO2011008336A1 (fr) * 2009-07-16 2011-01-20 Dow Global Technologies Inc. Cuir artificiel à base de polyoléfine
WO2012068727A1 (fr) * 2010-11-24 2012-05-31 Dow Global Technologies Llc Composition comprenant un copolymère d'alpha-oléfine et de propylène, un copolymère bloc d'oléfine, et de la matière fondue moléculaire de dpo-bsa
KR20190004492A (ko) * 2017-07-04 2019-01-14 (주)엘지하우시스 인조 가죽 및 이의 제조방법

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4248084B2 (ja) * 1999-06-04 2009-04-02 オカモト株式会社 発泡ポリオレフィン系レザー
CN201056070Y (zh) * 2007-03-30 2008-05-07 郑添来 彩色复合皮革
CN103726344B (zh) * 2012-10-16 2016-04-06 三芳化学工业股份有限公司 人工皮革及其制造方法
CN106149397A (zh) * 2015-04-14 2016-11-23 三芳化学工业股份有限公司 热可塑性人工皮革及其制造方法与热可塑性复合基材

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1272129A (en) * 1968-08-28 1972-04-26 Toray Industries Press-moulded cross-linked polymeric foams and a process for producing the same
EP1882715A1 (fr) * 2005-05-18 2008-01-30 Toray Industries, Inc. Mousse de resine de polyolefine reticulee
WO2011008336A1 (fr) * 2009-07-16 2011-01-20 Dow Global Technologies Inc. Cuir artificiel à base de polyoléfine
WO2012068727A1 (fr) * 2010-11-24 2012-05-31 Dow Global Technologies Llc Composition comprenant un copolymère d'alpha-oléfine et de propylène, un copolymère bloc d'oléfine, et de la matière fondue moléculaire de dpo-bsa
KR20190004492A (ko) * 2017-07-04 2019-01-14 (주)엘지하우시스 인조 가죽 및 이의 제조방법

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Publication number Publication date
US20210238798A1 (en) 2021-08-05
CN113201941A (zh) 2021-08-03

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