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公开(公告)号：US10590221B2
公开(公告)日：2020-03-17
申请号：US14956950
申请日：2015-12-02
IPC分类号： C08F279/02 , B60C1/00 , C08G81/02
摘要： Provided is a modified diene based polymer in which a diene based polymer is graft modified with a polyether having a mercapto group attached via diurethane bonding. Formation of diurethane bonding is performed by allowing sequential reactions of two species of hydroxyl group-containing compounds with an diisocyanate compound. By adding the modified diene based polymer to a silica-containing rubber composition for automobile pneumatic tires, the dispersibility of silica compounded in the rubber composition can be improved, and a property inherent in silica which simultaneously allows a reduction of rolling resistance and a stability on wet road surfaces can be sufficiently effected.
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公开(公告)号：US20190202244A1
公开(公告)日：2019-07-04
申请号：US16098819
申请日：2017-05-02
申请人： The Yokohama Rubber Co., LTD. , Chitose Institute of Science and Technology , National University Corporation Hokkaido University , Tohoku Techno Arch Co., Ltd.
CPC分类号： B60C13/001 , B29C59/02 , B29D30/72 , B29D2030/726 , B60C1/00 , B60C1/0025 , B60C13/00 , C08K3/04 , C08K3/36 , C08L7/00 , C08L9/00 , C08L19/00
摘要： A vehicle tire, as a rubber member, includes, on at least a part of the surface thereof, a fine ridged/grooved structure formed via transfer from a mold and having fine ridged/grooved portions arranged at a constant arrangement pitch, wherein a region in which the fine ridged/grooved structure is provided is visually recognizable by a different structural color from the colors of other regions. The fine ridged/grooved structure is formed on a sidewall portion of the vehicle tire, and the region in which the fine ridged/grooved structure is provided is formed in a shape to display predetermined information.
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公开(公告)号：US10245795B2
公开(公告)日：2019-04-02
申请号：US15479533
申请日：2017-04-05
发明人： Takahiro Okamatsu
摘要： The present invention is a tire puncture repair kit including tire puncture repair liquid and a coagulant for a tire puncture repair liquid with excellent coagulability. The coagulant of the present invention coagulates a tire puncture repair liquid, and contains an α-starch and/or a dextrin having a weight average molecular weight of 3,000 to 50,000.
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公开(公告)号：US09803031B2
公开(公告)日：2017-10-31
申请号：US15115171
申请日：2014-12-22
IPC分类号： C08C19/22 , B60C1/00 , C07C251/48 , C07D213/53 , C07D233/64 , C08K3/36 , C08L7/00 , C08L9/06
CPC分类号： C08C19/22 , B60C1/0016 , C07C251/48 , C07D213/53 , C07D233/64 , C08K3/36 , C08L7/00 , C08L9/06 , C08L15/00 , C08L21/00 , C08L2205/025
摘要： The purpose of the present invention is to provide a modified polymer that significantly reduces heat build-up due to the modification when the modified polymer is formed into a rubber composition, a rubber composition containing the modified polymer, and a pneumatic tire in which the rubber composition is used. The modified polymer of the present invention is a modified polymer obtained by modifying a styrene-conjugated diene copolymer (A) with a nitrone compound (B). In the modified polymer, the content of styrene units in the styrene-conjugated diene copolymer (A) is 10% by mass or greater, and the proportion of vinyl bonds among all the double bonds contained in the styrene-conjugated diene copolymer (A) is 5 mol % or greater.
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公开(公告)号：US09695304B2
公开(公告)日：2017-07-04
申请号：US15311288
申请日：2014-12-19
摘要： A rubber composition for tire bead insulation contains a diene rubber, a nitrone compound having a carboxy group, a carbon black and a white filler. The diene rubber contains a natural rubber and a styrene-butadiene rubber and the mass ratio of the contents of the natural rubber and the butadiene rubber is from 50:50 to 90:10. The content of the nitrone compound is from 0.1 to 10 parts by mass (PBM) per 100 PBM of total content of the diene rubber and the nitrone compound. The content of the carbon black is not less than 70 PBM per 100 PBM of the total above. The content of the white filler is not less than 20 PBM per 100 PBM of the total above. The total content of the carbon black and the white filler is from 90 to 180 PBM per 100 PBM of the total above.
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公开(公告)号：US09694549B1
公开(公告)日：2017-07-04
申请号：US15116921
申请日：2015-02-13
CPC分类号： B29C73/163 , B01F17/005 , B29K2003/00 , B29K2077/00 , B29L2030/00 , C08C1/15
摘要： An object of the present invention is to provide an emulsion coagulant having excellent coagulation performance and a tire puncture repair kit that uses the emulsion coagulant. The emulsion coagulant of the present invention is an emulsion coagulant containing an α-starch and an anionic polyacrylamide; a molecular weight of the anionic polyacrylamide being from 500,000 to 2,000,000; and a mass ratio (WA:WB) of a content (WA) of the α-starch to a content (WB) of the anionic polyacrylamide being from 5:95 to 80:20.
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公开(公告)号：US09624396B2
公开(公告)日：2017-04-18
申请号：US14434557
申请日：2013-10-10
发明人： Takahiro Okamatsu
IPC分类号： C09D133/14 , C09D131/04 , C09D5/02 , C09D123/00 , C09D123/04 , C09D133/08 , C09D175/04 , C09D201/00 , C08L33/06 , C09D5/00
CPC分类号： C09D133/14 , C08G2190/00 , C08L33/06 , C08L2201/52 , C09D5/002 , C09D5/02 , C09D123/00 , C09D123/04 , C09D131/04 , C09D133/08 , C09D175/04 , C09D201/00 , C08L33/08
摘要： The present invention is to provide a water-based primer composition that exhibits excellent adhesion toward an adherend such as mortar. This water-based primer composition contains a high molecular weight emulsion (A) which is an emulsion of a resin having a weight average molecular weight of 200,000 or higher, and a low molecular weight emulsion (B) which is an emulsion of a resin having a weight average molecular weight of 100,000 or lower, wherein an average particle diameter of the resin of the low molecular weight emulsion (B) is 0.6 μm or less.
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公开(公告)号：US09493599B2
公开(公告)日：2016-11-15
申请号：US14443371
申请日：2013-11-15
发明人： Ryota Takahashi , Takahiro Okamatsu
IPC分类号： C08F8/30 , C08C19/22 , C08F236/10 , B60C1/00 , C08K5/32
CPC分类号： C08F236/10 , B60C1/00 , C08C19/22 , C08F8/30 , C08K5/32
摘要： The present technology provides a modified polymer which is modified with two or more types of nitrones that include a nitrone having at least one carboxy group and a nitrone having no carboxy group.
摘要翻译： 本技术提供了一种改性聚合物，其被两种或更多种类型的硝酸盐改性，其中包括具有至少一个羧基的硝酮和不含羧基的硝酮。
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公开(公告)号：US11602909B2
公开(公告)日：2023-03-14
申请号：US16316148
申请日：2017-07-24
发明人： Takahiro Okamatsu , Masahiro Naruse
IPC分类号： B29C73/16 , C08L7/02 , B29C73/02 , C08K5/053 , C08K5/06 , C08K5/17 , C08L23/08 , C08L31/04 , C08L83/04
摘要： An object of the present invention is to provide a tire sealant and a tire repair kit that exhibit excellent injectability. Provided is a tire sealant including a natural rubber latex, a synthetic resin emulsion, an anti-freezing agent, a surfactant, and a chelating agent, wherein the content of the chelating agent is 0.1 mass % or greater.
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公开(公告)号：US10011707B2
公开(公告)日：2018-07-03
申请号：US15565621
申请日：2016-04-13
CPC分类号： C08L9/06 , B60C1/00 , B60C1/0016 , C08C19/22 , C08K3/00 , C08L9/00 , C08L13/00 , C08L15/00 , C08L2205/03 , C08L2205/06 , C08K3/36 , C08L7/00 , C08K3/04
摘要： An object of the present invention is to provide a rubber composition having excellent processability while excellent heat build-up reduction effect is maintained; and a pneumatic tire that uses the rubber composition. The rubber composition of the present invention contains: a diene rubber containing from 5 to 70 mass % of a modified butadiene rubber obtained by modifying an unmodified butadiene rubber (A) with a carboxy group-containing nitrone compound (B), the unmodified butadiene rubber (A) containing from 2 to 45 parts by mass of an unmodified low molecular weight butadiene rubber (A1) having from 1.5 to 60 mol % of vinyl bonding and having a number average molecular weight (Mn) of 2000 to 60000 per 100 parts by mass of an unmodified butadiene rubber (A2) having a number average molecular weight (Mn) greater than that of the unmodified low molecular weight butadiene rubber (A1).
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