Patents Assigned to Kyowa Leather Cloth Co., Ltd.
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Patent number: 11965286Abstract: A synthetic resin skin material and a manufacturing method thereof, the synthetic resin skin material including, in this order: a base fabric; a thermoplastic resin layer having a storage elastic modulus at 160° C. of 2,000,000 Pa or less measured in accordance with JIS K 7244 (1998); and a skin layer containing a urethane resin, wherein the synthetic resin skin material has recesses at a side of the skin layer, the recesses having a depth, in a thickness direction of the synthetic resin skin material, that extends from the skin layer as far as an inner part of the thermoplastic resin layer, past a boundary that is present between the skin layer and the thermoplastic resin layer at a non-recessed region.Type: GrantFiled: May 28, 2020Date of Patent: April 23, 2024Assignee: KYOWA LEATHER CLOTH CO., LTD.Inventors: Tomohisa Sakashita, Tomoyuki Ishiyama, Mayu Ohba, Kento Terai, Akinaka Fukumi
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Publication number: 20230142471Abstract: A skin material that achieves both of a cushion-like sensation and a rupture property at low temperature environments, including: a skin layer including an olefin-based resin, an intermediate layer including a polypropylene resin, and a foam layer including an olefin-based resin, in this order.Type: ApplicationFiled: November 9, 2020Publication date: May 11, 2023Applicant: KYOWA LEATHER CLOTH CO., LTD.Inventors: Yasuaki SATO, Yutaka SHIGENOBU
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Patent number: 11577487Abstract: A synthetic resin skin material composite, including: a urethane resin skin material including a urethane resin skin layer provided at one surface of a substrate; and a cushion layer that is placed at a surface on an opposite side of the substrate from the surface of the urethane resin skin material at which the urethane resin skin layer is provided; in which the urethane resin skin material has recesses at a side of the urethane resin skin layer, and each of the recesses has a depth in a thickness direction of the synthetic resin skin material composite, such that the recesses extend from the urethane resin skin layer into the cushion layer beyond an interface between the urethane resin skin material and the cushion layer that is present in a region without a recess, as well as a method of producing a synthetic resin skin material composite.Type: GrantFiled: September 26, 2018Date of Patent: February 14, 2023Assignees: KYOWA LEATHER CLOTH CO., LTD., HAYASHI TELEMPU CORPORATION, INOAC CORPORATIONInventors: Tomoyuki Ishiyama, Kenji Kubo, Tetsuya Ogawa, Atsuhiko Itakura
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Patent number: 11434602Abstract: A synthetic leather includes: a base cloth; on the base cloth, an adhesion layer, a skin layer, and a flame-retardant layer, in this order, in which the flame-retardant layer includes at least one selected from hydrotalcite or a hydrotalcite-like compound, and is a cured product of a composition that includes a binder and particles having an average particle diameter of from 10 nm to 2500 nm, and is a layer having a thickness of from 1 ?m to 20 ?m.Type: GrantFiled: October 26, 2018Date of Patent: September 6, 2022Assignees: KYOWA LEATHER CLOTH CO., LTD., NT&I CO., LTD., SHINSHU UNIVERSITYInventors: Tadahisa Sasase, Yusuke Kato, Shohei Hosoo, Yasushi Murakami
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Publication number: 20220186428Abstract: A synthetic resin skin material and a manufacturing method thereof, the synthetic resin skin material including, in this order: a base fabric; a thermoplastic resin layer having a storage elastic modulus at 160° C. of 2,000,000 Pa or less measured in accordance with JIS K 7244 (1998); and a skin layer containing a urethane resin, wherein the synthetic resin skin material has recesses at a side of the skin layer, the recesses having a depth, in a thickness direction of the synthetic resin skin material, that extends from the skin layer as far as an inner part of the thermoplastic resin layer, past a boundary that is present between the skin layer and the thermoplastic resin layer at a non-recessed region.Type: ApplicationFiled: May 28, 2020Publication date: June 16, 2022Applicant: KYOWA LEATHER CLOTH CO., LTD.Inventors: Tomohisa SAKASHITA, Tomoyuki ISHIYAMA, Mayu OHBA, Kento TERAI, Akinaka FUKUMI
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Publication number: 20210292965Abstract: A synthetic resin skin material, including a base cloth and a vinyl chloride resin skin layer that is formed on the base cloth and that includes a vinyl chloride resin having a degree of polymerization of 1,600 to 3,000 and includes 3 parts by mass to 20 parts by mass of a silicon-acrylic copolymer with respect to 100 parts by mass of the vinyl chloride resin, and a manufacturing method thereof.Type: ApplicationFiled: January 9, 2020Publication date: September 23, 2021Applicant: KYOWA LEATHER CLOTH CO., LTD.Inventors: Ryutaro SUZUKI, Masato YAMAOKA
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Publication number: 20210162705Abstract: A synthetic resin skin material composite, including: a urethane resin skin material including a urethane resin skin layer provided at one surface of a substrate; and a cushion layer that is placed at a surface on an opposite side of the substrate from the surface of the urethane resin skin material at which the urethane resin skin layer is provided; in which the urethane resin skin material has recesses at a side of the urethane resin skin layer, and each of the recesses has a depth in a thickness direction of the synthetic resin skin material composite, such that the recesses extend from the urethane resin skin layer into the cushion layer beyond an interface between the urethane resin skin material and the cushion layer that is present in a region without a recess, as well as a method of producing a synthetic resin skin material composite.Type: ApplicationFiled: September 26, 2018Publication date: June 3, 2021Applicants: KYOWA LEATHER CLOTH CO., LTD., HAYASHI TELEMPU CORPORATION, INOAC CORPORATIONInventors: Tomoyuki ISHIYAMA, Kenji KUBO, Tetsuya OGAWA, Atsuhiko ITAKURA
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Patent number: 10828866Abstract: Provided are a decorative sheet which has excellent processability and with which an increase in workability during mounting can be achieved, a formed sheet obtained by forming the decorative sheet, and a formed sheet manufacturing method. The decorative sheet 1 is provided with a release layer 2, a pressure-sensitive adhesive layer 3 disposed on a surface of the release layer 2, and a skin layer 4 disposed on a surface of the pressure-sensitive adhesive layer 3. The release layer 2 includes a shape retention layer 5 and an easy release layer 6 interposed between the pressure-sensitive adhesive layer 3 and the shape retention layer 5. The shape retention layer 5 is a resin sheet made from an acrylonitrile-butadiene-styrene copolymer. The shape retention layer 5 has a thickness of not less than 100 ?m and not more than 700 ?m.Type: GrantFiled: December 17, 2015Date of Patent: November 10, 2020Assignees: DAIHATSU MOTOR CO., LTD., KYOWA LEATHER CLOTH CO.,LTD.Inventors: Jun Nagata, Akira Sakabe, Kazuyoshi Baba, Tadahiko Inagaki, Haruyuki Ishizu, Keiko Nakada
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Publication number: 20200325625Abstract: A synthetic leather includes: a base cloth; on the base cloth, an adhesion layer, a skin layer, and a flame-retardant layer, in this order, in which the flame-retardant layer includes at least one selected from hydrotalcite or a hydrotalcite-like compound, and is a cured product of a composition that includes a binder and particles having an average particle diameter of from 10 nm to 2500 nm, and is a layer having a thickness of from 1 ?m to 20 ?m.Type: ApplicationFiled: October 26, 2018Publication date: October 15, 2020Applicants: KYOWA LEATHER CLOTH CO., LTD., NT&I CO., LTD., SHINSHU UNIVERSITYInventors: Tadahisa SASASE, Yusuke KATO, Shohei HOSOO, Yasushi MURAKAMI
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Publication number: 20190382953Abstract: Provided is a synthetic leather including: a base fabric that has a limiting oxygen index of 25 or more, and that is a knitted body of a yarn including a flame-retardant fiber having a limiting oxygen index of 25 or more, a cellulose-based fiber, and a carbon fiber; an adhesion layer containing a flame retardant, the adhesion layer being provided at at least one side of the base fabric; and a skin layer provided at a side of the adhesion layer opposite from a side at which the base fabric is provided.Type: ApplicationFiled: November 9, 2017Publication date: December 19, 2019Applicant: KYOWA LEATHER CLOTH CO., LTD.Inventors: Kenji KUBO, Noriyuki ISHIYAMA
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Patent number: 10173404Abstract: A synthetic resin skin material includes, on one side of a base material 12, an adhesive layer 14, a skin layer 16, and a surface processing layer 18 in this order from the base material 12, the adhesive layer 14 and the skin layer 16 containing a polyurethane urea resin having a number average molecular weight of from 35,000 to 100,000.Type: GrantFiled: July 6, 2015Date of Patent: January 8, 2019Assignees: Kyowa Leather Cloth Co., Ltd., Tosoh CorporationInventors: Takafumi Kinoshita, Takahito Nakamura, Tadayuki Kawaguchi
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Patent number: 9885148Abstract: A laminated sheet includes a base cloth layer having a porous structure obtained by impregnating a woven fabric, which has a tear strength by a trapezoid method of 150 N or more in the longitudinal direction and 100 N or more in the lateral direction, with a resin composition containing a polyurethane resin and an organic flame retardant, and a skin layer layered on the base cloth layer, and has plural air holes penetrating in the thickness direction.Type: GrantFiled: December 13, 2013Date of Patent: February 6, 2018Assignees: KYOWA LEATHER CLOTH CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koji Sugiura, Akinaka Fukumi, Kenji Kubo, Takanori Tatematsu
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Publication number: 20170136749Abstract: A synthetic resin skin material includes, on one side of a base material 12, an adhesive layer 14, a skin layer 16, and a surface processing layer 18 in this order from the base material 12, the adhesive layer 14 and the skin layer 16 containing a polyurethane urea resin having a number average molecular weight of from 35,000 to 100,000.Type: ApplicationFiled: July 6, 2015Publication date: May 18, 2017Applicants: Kyowa Leather Cloth Co., Ltd., TOSOH CorporationInventors: Takafumi KINOSHITA, Takahito NAKAMURA, Tadayuki KAWAGUCHI
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Publication number: 20150299944Abstract: A laminated sheet includes a base cloth layer having a porous structure obtained by impregnating a woven fabric, which has a tear strength by a trapezoid method of 150 N or more in the longitudinal direction and 100 N or more in the lateral direction, with a resin composition containing a polyurethane resin and an organic flame retardant, and a skin layer layered on the base cloth layer, and has plural air holes penetrating in the thickness direction.Type: ApplicationFiled: December 13, 2013Publication date: October 22, 2015Applicants: KYOWA LEATHER CLOTH CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koji SUGIURA, Akinaka FUKUMI, Kenji KUBO, Takanori TATEMATSU
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Patent number: 6001455Abstract: There is provided a sheet-shaped product of a thermoplastic elastomer provided with an embossed pattern on the surface thereof, comprising as a base material a component (II) comprising a thermoplastic elastomer, said elastomer being obtained by subjecting a composition (I) comprising the following components (A) and (B) to dynamic heat treatment carried out in the presence of an organic peroxide: component (A): from 10 to 75% by weight of an olefin resin containing 50 to 100% by weight of a crystalline propylene polymer resin, and component (B): from 90 to 25% by weight of an olefin copolymer rubber containing 10 to 100% by weight of an olefin-propylene copolymer rubber whose propylene content is from 65 to 90% by weight.Type: GrantFiled: April 18, 1995Date of Patent: December 14, 1999Assignees: Mitsubishi Chemical Corporation, Toyota Jidosha Kabushiki Kaisha, Kyowa Leather Cloth Co.,LtdInventors: Takeyoshi Nishio, Takao Nomura, Yukio Okishio, Ichiro Nishi, Tatsuo Yamamoto, Junji Mayumi, Takao Usami, Takao Yazaki
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Patent number: 5087185Abstract: An apparatus for continuously taking off a thermoplastic synthetic resin sheet foamed by a vertical foaming furnace which has a rail fixedly disposed horizontally, two bodies mounted obliquely at the same angle in a linear symmetrical manner with respect to a vertical line and moving in parallel along the rail, a driver for driving the bodies, two holding roll rows having a plurality of holding rolls disposed in a zigzag manner along the longitudinal direction of the body, a pair of supports respectively wound on the holding rolls, and sensors having optical fiber sensors electrically connected to the driver and provided at each of the upper ends of the bodies. The interval of the two bodies is defined to be narrow at its top and wider toward the lower interval. The degree of the width of the foamed sheet is determined by the angle. The sensor includes two casing halves. One casing half contains a light emitting unit of the optical fiber sensor.Type: GrantFiled: September 7, 1989Date of Patent: February 11, 1992Assignee: Kyowa Leather Cloth Co., Ltd.Inventors: Tooru Yada, Hideaki Nakayama, Hiroyuki Kurita
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Patent number: 4986860Abstract: A method for producing a laminated material including a lower layer of highly-expanded plasticized polyvinyl chloride with cross-linking and a surface layer of thermoplastic resin sheet laminated on an upper surface of said lower layer, said method including the steps of: heating and kneading raw materials for the lower layer in an extruder, the raw materials excluding a cross-linking agent and a blowing agent; adding the cross-linking agent and the blowing agent; heating and kneading the obtained material at or less than a reacting temperature of the cross-linking agent and a decomposition temperature of the blowing agent to obtain a sheet; heating the sheet to cross-link and expand the sheet to form the lower layer of cross-linked highly-expanded plasticized polyvinyl chloride; and laminating the surface layer of the thermoplastic resin on the upper surface of the lower layer.Type: GrantFiled: September 13, 1988Date of Patent: January 22, 1991Assignee: Kyowa Leather Cloth Co., Ltd.Inventors: Hirofumi Akimoto, Sadayuki Takeyama, Toshimichi Hiki, Masayuki Kondo