专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明申请

US20210002791A1 SEMI-AROMATIC POLYAMIDE FIBER AND METHOD FOR PRODUCING SAME 有权
公开(公告)号：US20210002791A1
公开(公告)日：2021-01-07
申请号：US17023532
申请日：2020-09-17
申请人： KURARAY CO., LTD.
发明人： Takeshi TSUDAKA , Shohei TSUNOFURI , Yosuke WASHITAKE
IPC分类号： D01F6/60 , C08G69/26 , D01D5/08
摘要： Provided is a semi-aromatic polyamide fiber having excellent spinning stability, heat resistance and chemical resistance. The semi-aromatic polyamide fiber includes a semi-aromatic polyamide resin having a melting point of 290° C. or higher and a plasticizer having a 5% thermal weight reduction temperature of 320° C. or higher, the resin having as a dicarboxylic acid component an aromatic dicarboxylic acid unit and as a diamine component 1,9-nonanediamine unit and 2-methyl-1,8-octanediamine unit in a molar ratio (the former:the latter) of 70:30 to 99:1.

82. 发明授权

US10857763B2 Interlayer film for laminated glass and laminated glass 有权
公开(公告)号：US10857763B2
公开(公告)日：2020-12-08
申请号：US16541373
申请日：2019-08-15
申请人： KURARAY CO., LTD.
发明人： Taiga Yui , Takuya Kobayashi , Takeshi Kusudou , Koichiro Isoue
IPC分类号： B32B17/10 , E06B3/66 , B32B25/08 , E06B3/67 , B60J1/00 , B32B25/04 , B60J1/02 , B60J1/08 , B60J1/18 , B60J7/043
摘要： The present invention provides an interlayer film for laminated glass which has excellent sound insulating properties even when the thickness is reduced, and also hardly causes optical unevenness.An interlayer film for laminated glass includes at least one layer A containing a thermoplastic elastomer, wherein the shear storage modulus of the layer A at 70° C. as measured by performing a dynamic viscoelasticity test at a frequency of 1,000 Hz in accordance with ASTM D4065-06 is 1 MPa or more, and a layer having a higher shear storage modulus than the layer A is provided on at least one surface of the layer A, and at least one surface of the interlayer film for laminated glass is in a state of having been shaped.

83. 发明授权

US10851545B2 Concrete tile and molding material for same 有权
公开(公告)号：US10851545B2
公开(公告)日：2020-12-01
申请号：US15141232
申请日：2016-04-28
申请人： Kuraray Co., Ltd.
发明人： Akira Imagawa , Shinya Inada , Yoshihiro Iwasaki , Saburo Hada
IPC分类号： E04D3/26 , B28B11/16 , C04B28/02 , E04D1/04 , B28B1/52 , B28B5/02 , C04B16/06 , E04D1/16 , B28B3/12 , C04B111/00 , C04B111/20
摘要： A concrete tile comprising a tile body, the tile body having an upper face hardened through non-mold shaping, a lower face hardened through mold shaping, and a side surface that includes a cut end face in at least one side of the tile body, wherein the tile body contains alkali-resistant fiber in an entire thickness thereof in a state substantially free of fiber-containing granular bodies; the alkali-resistant fibers comprise at least one member selected from the group consisting of polyvinyl alcohol-based fibers, polyethylene fibers, polypropylene fibers, acrylic fibers, and aramid fibers; and a flexural strength of a 30 mm×150 mm sized cut piece of the tile body is not less than 6 N/mm2.

84. 发明授权

US10829879B2 Conductive nonwoven fabric and method of producing meltblown nonwoven fabric used in conductive nonwoven fabric 有权
公开(公告)号：US10829879B2
公开(公告)日：2020-11-10
申请号：US15505495
申请日：2014-08-22
申请人： KURARAY CO., LTD.
发明人： Yasuhiro Shirotani , Kimihiko Houhashi , Kazuo Ohira
IPC分类号： D04H3/16 , D04H3/011 , D06M11/83 , D01F6/62 , D04H1/435 , D01D5/098 , D04H3/016
摘要： Provided is a conductive nonwoven fabric, including a meltblown nonwoven fabric made from a melt liquid-crystal-forming wholly aromatic polyester having a melt viscosity at 310° C. of less than or equal to 20 Pa·s and satisfying (A) an average fiber diameter from 0.1 μm to 5 μm, (B) two or less film-like objects existing per 1 mm2 of the nonwoven fabric, (C) a breaking length in a warp direction of greater than or equal to 10 km and a breaking length in a weft direction of greater than or equal to 6 km, (D) a basis weight from 1.0 g/m2 to 15 g/m2, (E) a thickness from 5 μm to 50 μm, and (F) an air permeability of less than or equal to 300 cc/cm2/second, and a metal coating film formed on the meltblown nonwoven fabric.

85. 发明申请

US20200339771A1 RESIN COMPOSITION, PRODUCTION METHOD THEREOF, MOLDED PRODUCT, MULTILAYER STRUCTURE, FILM, PRODUCTION METHOD THEREOF, VAPOR DEPOSITION FILM, PACKAGING MATERIAL, VACUUM PACKAGING BAG, VACUUM INSULATOR, THERMOFORMED CONTAINER, BLOW MOLDED CONTAINER, FUEL CONTAINER, AND BOTTLE-SHAPED CONTAINER 审中-公开
公开(公告)号：US20200339771A1
公开(公告)日：2020-10-29
申请号：US16958559
申请日：2018-12-27
申请人： KURARAY CO., LTD.
发明人： Tatsuya HASEGAWA , Hiroshi KAWAI , Mizuko OSHITA
IPC分类号： C08J5/18 , C08K3/38 , B32B27/08 , B32B27/30 , B29C55/00 , B29C51/00 , B65D65/40
摘要： Provided are a resin composition, a production method thereof, and a molded product and a multilayer structure each including such a resin composition. The resin composition enables: even in the case in which a film formation temperature is high, excessive elevation of torque to be inhibited with occurrence of neck-in during film formation being prevented; a molded product superior in appearance characteristics to be formed continuously for a long time period, with defects such as fish eyes and streaks being prevented; and further a thermoformable multilayer structure to be produced continuously for a long time period, the thermoformable multilayer structure being capable of providing a thermoformed product superior in appearance characteristics. A resin composition containing: an ethylene-vinyl alcohol copolymer (A) having an ethylene unit content of 20 to 60 mol %; and a boron compound (B), the boron compound (B) including a free boric acid (C), with a content of the boron compound (B) with respect to the ethylene-vinyl alcohol copolymer (A) being 100 ppm or more and 5,000 ppm or less in terms of orthoboric acid, and a proportion of the free boric acid (C) in the boron compound (B) being 0.1% by mass or more and 10% by mass or less in terms of orthoboric acid.

86. 发明申请

US20200339724A1 (METH)ACRYLIC BLOCK COPOLYMER AND ACTIVE ENERGY RAY CURABLE COMPOSITION CONTAINING THE SAME 审中-公开
公开(公告)号：US20200339724A1
公开(公告)日：2020-10-29
申请号：US16763730
申请日：2018-11-12
申请人： KURARAY CO., LTD.
发明人： Junya TAKAI , Kenji SHACHI
IPC分类号： C08F299/00
摘要： Provided are a (meth)acrylic block copolymer exhibiting good active energy ray curability, in particular, curability of a blend thereof with an acrylate monomer, and an active energy ray curable composition comprising the (meth)acrylic block copolymer. The (meth)acrylic block copolymer includes a methacrylic polymer block (A) having an active energy ray curable group including a partial structure represented by the general formula (1) below wherein R1 denotes a hydrocarbon group having 1 to 10 carbon atoms, and W denotes a saturated hydrocarbon group having 1 to 10 carbon atoms, and an acrylic polymer block (B) having no active energy ray curable groups.

87. 发明申请

US20200332090A1 HEAVY-DUTY TIRE RUBBER COMPOSITIONS AND TIRES 审中-公开
公开(公告)号：US20200332090A1
公开(公告)日：2020-10-22
申请号：US16643138
申请日：2018-08-29
申请人： KURARAY CO., LTD.
发明人： Daisuke KODA , Hiroshi KANBARA
IPC分类号： C08L9/00 , B60C1/00
摘要： The invention provides a heavy-duty tire rubber composition capable of giving heavy-duty tires which exhibit low heat generation properties and have good abrasion resistance, and also provides a tire tread, a bead filler, a tire belt and a heavy-duty tire which each partially include the composition. The heavy-duty tire rubber composition includes 100 parts by mass of a solid rubber (A), 0.1 to 50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound with a specific structure, and 20 to 200 parts by mass of a filler (C), the modified liquid diene rubber (B) satisfying the following (i) and (ii): (i) the weight average molecular weight (Mw) is not less than 1,000 and not more than 120,000, and (ii) the vinyl content is less than 30 mol %.

88. 发明申请

US20200325259A1 METHOD FOR PRODUCING VINYL ALCOHOL POLYMERS 审中-公开
公开(公告)号：US20200325259A1
公开(公告)日：2020-10-15
申请号：US16304842
申请日：2017-05-25
申请人： KURARAY CO., LTD.
发明人： Takuma KANESHIMA
IPC分类号： C08F216/06 , C08F118/08 , C08F2/38 , C08F2/06 , C08F4/34 , C08F8/12
摘要： The present invention provides an industrially advantageous method for producing vinyl alcohol polymers having a low degree of polymerization using a chain transfer agent having an aliphatic hydrocarbon group having 6 to 12 carbon atoms, the method being capable of producing a vinyl alcohol polymer whose aqueous solution has excellent viscosity stability. The present invention relates to a method for producing vinyl alcohol polymers, including: polymerizing a vinyl ester monomer (a) in the presence of a polymerization initiator (B) and a chain transfer agent (C) having an aliphatic hydrocarbon group having 6 to 12 carbon atoms to obtain a vinyl ester polymer (A); and saponifying the vinyl ester polymer (A) at a concentration of 40 mass % or more and 75 mass % or less in the presence of an acidic catalyst (D) to obtain a vinyl alcohol polymer, wherein the vinyl alcohol polymer has a viscosity-average degree of polymerization of 160 or more and 400 or less.

89. 发明申请

US20200324525A1 FILM, MOLDED PRODUCT, AND METHOD FOR PRODUCING FILM 审中-公开
公开(公告)号：US20200324525A1
公开(公告)日：2020-10-15
申请号：US16305681
申请日：2017-05-31
申请人： KURARAY CO., LTD.
发明人： Yasuhiro NONAKA , Makoto SUZUKI
IPC分类号： B32B27/08 , B32B27/30 , B32B27/40 , B32B25/08 , B32B25/14 , C08J5/18
摘要： A film with a gas barrier resin having a glass transition temperature of 70° C. or below and an elastomer, and having an oxygen permeability coefficient of 200 mL/(m2·day·atm) or less. In a case where tension is applied to stretch the film in a machine direction (MD) at 20° C. such that a twofold increase in length of the film is kept for 30 seconds, and then the tension is released, a ratio L2/L1 is 1.5 or less, where L1 denotes the length of the film prior to application of the tension and L2 denotes the length of the film subsequent to release of the tension. An elongation ratio at break ETD/EMD of the film is preferably 0.9 or more and 1.7 or less, there EMD denotes the elongation at break in MD and ETD denotes the elongation at break in the transverse direction (TD).

90. 发明授权

US10800912B2 Resin film 有权
公开(公告)号：US10800912B2
公开(公告)日：2020-10-13
申请号：US16066853
申请日：2016-12-27
申请人： KURARAY CO., LTD.
发明人： Hiroshi Ozawa , Yasuhito Kitade
IPC分类号： B32B27/30 , C08L33/08 , C08L33/10 , C08L33/12 , C08J5/18 , C08L33/06 , C08L101/00 , B29C45/00 , B29K433/04 , B29L7/00
摘要： A resin film comprising a resin (A) and a multi-layered particle (B), the multi-layered particle comprising a layer (a) made of a polymer comprising 80 to 99.99% by mass of a methyl methacrylate unit, 0.01 to 2% by mass of a crosslinkable monomer unit and 0 to 19.99% by mass of additional copolymerizable monomer units, a layer (b) made of a polymer comprising 70 to 99.8% by mass of an alkyl acrylate unit, 0.2 to 10% by mass of a crosslinkable monomer unit and 0 to 29.8% by mass of additional copolymerizable monomer units, and a layer (c) made of a polymer comprising 80 to 100% by mass of a methyl methacrylate unit and 0 to 20% by mass of additional copolymerizable monomer units, wherein an amount of the layer (a) is 5 to 15 parts by mass, an amount of the layer (b) is 40 to 60 parts by mass and an amount of the layer (c) is 35 to 50 parts by mass, based on 100 parts by mass of the total amount of the layer (a), the layer (b) and the layer (c), and the layer (a), the layer (b) and the layer (c) are arranged in this order from the center of the particle toward the outer surface of the particle, and a volume-based average particle diameter is 90 to 150 nm.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式