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公开(公告)号：US11634330B2
公开(公告)日：2023-04-25
申请号：US16488862
申请日：2018-02-23
申请人： KURARAY CO., LTD.
IPC分类号： C01B31/08 , C01B32/318 , C01B32/348 , C01B32/336 , C01B32/30
摘要： The present invention relates to a carbonaceous material which is derived from a plant, having a specific surface area of 1800 to 3000 m2/g as measured by a BET method, a hydrogen element content of 0.42% by mass or less and an oxygen element content of 1.5% by mass or less.
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2.发明申请公开(公告)号：US20230122106A1
公开(公告)日：2023-04-20
申请号：US17798175
申请日：2021-06-25
申请人： KURARAY CO., LTD.
IPC分类号： C02F1/00 , C01B32/318 , C01B32/354
摘要： One aspect of the present invention relates to a carbonaceous material having a BET specific surface area calculated from a nitrogen adsorption isotherm by a BET method, of 750 m2/g or more and 1000 m2/g or less, a ratio of a pore volume of pores of 0.3875 to 0.9125 nm calculated from the nitrogen adsorption isotherm by a HK method to a total pore volume calculated from the nitrogen adsorption isotherm by the HK method, of 80% or more, and an average pore diameter obtained by the following formula using the BET specific surface area and the total pore volume calculated from the nitrogen adsorption isotherm by the HK method, of 1.614 nm or less: D=4000×V/S (wherein D represents the average pore diameter (nm), V represents the total pore volume (mL/g), and S represents the specific surface area (m2/g)).
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公开(公告)号：US20230118744A1
公开(公告)日：2023-04-20
申请号：US17915740
申请日：2021-03-26
申请人： KURARAY CO., LTD.
发明人： Taeko Kaharu , Yoriko Imaoka , Yuta Taoka , Ayumu Yamamoto
IPC分类号： C08F216/06 , C08L23/08 , D21H19/34 , D21H19/22 , C08K7/02 , C09J11/06 , C09J123/08
摘要： The present invention provides an aqueous dispersion that enables production of a film having improved water resistance, tensile elastic modulus, and stress at break, and with which a decrease of strain at break can be reduced in the film. The present invention relates to an aqueous dispersion comprising an ethylene-vinyl alcohol copolymer (A) and a cellulose nanofiber, the ethylene unit content of the ethylene-vinyl alcohol copolymer (A) being 1 mol % or more and less than 20 mol %.
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公开(公告)号：US11628430B2
公开(公告)日：2023-04-18
申请号：US16480082
申请日：2018-02-21
申请人： KURARAY CO., LTD.
发明人： Yusaku Hosaka
摘要： There is provided a method for producing a catalyst liquid containing a Group 6 to 11 transition metal catalyst in which the transition metal catalyst can be prevented from being blackened during storage, the method including performing addition of an alkenyl compound and addition of a phosphorus ligand, and then performing addition of a Group 6 to 11 transition metal catalyst
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公开(公告)号：US20230112098A1
公开(公告)日：2023-04-13
申请号：US17904900
申请日：2021-02-26
发明人： Nobuhiro Koga , Hideki Kamada , Satoru Ono , Yoshikatsu Fujisawa
IPC分类号： A44B13/00
摘要： A water-soluble male-type molded hook-and-loop fastener includes a substrate and a plurality of male-type engaging elements, arranged in rows, protruding from the substrate surface. The engaging elements have a shape rising from the substrate surface and curving mid-course in a row direction, or a shape rising from the substrate surface, branching forward and backward mid-course in the row direction and curving in the row direction, with tip portions oriented toward the substrate surface in either shape. The substrate and the engaging elements both contain a mixture of a polyvinyl alcohol, 5 to 30 parts by mass of a polyhydric alcohol- or ethylene oxide-based polymer, and 3 to 20 parts by mass of a layered inorganic particle, based on 100 parts by mass of the polyvinyl alcohol. The polyvinyl alcohol has a degree of polymerization of 300 to 700 and a degree of saponification of 60 to 80% by mole.
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公开(公告)号：US20230073770A1
公开(公告)日：2023-03-09
申请号：US17789669
申请日：2021-10-14
申请人： KURARAY CO., LTD.
发明人： Osamu KAZETO , Yasutaka INUBUSHI
IPC分类号： C08F216/06 , C08J5/18
摘要： A PVA film containing PVA that does not increase carbon dioxide existing in the global environment or has a small increase amount even when carbon dioxide is generated by a biodegradation treatment or an incineration treatment. A polyvinyl alcohol resin film having a polyvinyl alcohol resin with an abundance ratio of carbon 14 in total carbon constituting the polyvinyl alcohol resin of 1.0×10−4 or more. A method for discriminating a polyvinyl alcohol resin film, the method including discriminating a polyvinyl alcohol resin film containing a polyvinyl alcohol resin (Ab) in which at least part of the carbon is derived from bio-derived ethylene.
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公开(公告)号：US11598034B2
公开(公告)日：2023-03-07
申请号：US15506423
申请日：2015-08-25
申请人： KURARAY CO., LTD.
发明人： Satoshi Koizumi , Sumito Kiyooka , Yasurou Araida
IPC分类号： D04H1/50 , D04H1/4391 , D04H1/4382 , A61F13/02 , D04H1/435
摘要： Provided are a stretchable non-woven fabric including crimped fibers, satisfying the following formula: (σ65−σ55)/(σ30−σ20)≥2.5, when a stress σ (N/50 mm) at a strain ε of 20%, 30%, 55% and 65% in a stress-strain curve by a tensile test for at least one direction in a plane direction, is referred to as σ20, σ30, σ55 and σ65, respectively, and a bandage including the non-woven fabric. The non-woven fabric and the bandage lead small deterioration in stretching performance when used repeatedly, and can be excellent in repetition durability.
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公开(公告)号：US20230069427A1
公开(公告)日：2023-03-02
申请号：US17792154
申请日：2020-12-18
申请人： KURARAY CO., LTD.
摘要： The present invention relates to a resin composition, comprising: a modified vinyl acetal resin which comprises 20 to 80 mol % of ethylene units and 4 to 76 mol % of vinyl alcohol units based on all monomer units constituting the resin, and has an acetalization degree of 5 to 80 mol %; and an alkali metal salt and/or an alkaline earth metal salt of a strong acid, wherein a total content of the alkali metal salt and/or the alkaline earth metal salt of the strong acid is 0.0005 to 0.06 part by mass with respect to 100 parts by mass of the modified vinyl acetal resin.
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9.发明申请公开(公告)号：US20230065457A1
公开(公告)日：2023-03-02
申请号：US17788392
申请日：2020-12-10
申请人： KURARAY CO., LTD.
发明人： Yasushi SENDA , Masahiro KATO
IPC分类号： C08L67/00
摘要： Provided is a thermoplastic elastomer composition and the like which can have improved vibration-damping properties while retaining properties inherent in a polyester-based thermoplastic elastomer. The thermoplastic elastomer composition contains a polyester-based thermoplastic elastomer (A) and a hydrogenated aromatic vinyl compound-based elastomer (B) having a glass transition temperature Tg of −10 to 40° C., wherein the hydrogenated aromatic vinyl compound-based elastomer (B) is a hydrogenate of a block copolymer containing a polymer block (a) having a structural unit derived from an aromatic vinyl compound and a polymer block (b) having a structural unit derived from a conjugated diene compound, and the ratio by mass of the polyester-based thermoplastic elastomer (A) to the hydrogenated aromatic vinyl compound-based elastomer (B), (A/B) is 99/1 to 1/99.
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公开(公告)号：US11590799B2
公开(公告)日：2023-02-28
申请号：US16643160
申请日：2018-08-29
申请人： KURARAY CO., LTD.
发明人： Daisuke Koda , Hiroshi Kanbara
IPC分类号： C08L7/00 , C08L9/00 , B60C1/00 , B60C15/06 , C08F230/08 , C08F236/06 , C08F236/08 , C08K3/04 , C08K3/36 , C08L25/10
摘要： The invention provides a heavy-duty tire rubber composition excellent in wet grip performance and steering stability, and 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 not less than 30 mol % and less than 70 mol %.
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