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1.发明申请公开(公告)号：US20180264883A1
公开(公告)日：2018-09-20
申请号：US15744965
申请日：2016-08-03
发明人： Ryota TAKAHASHI , Di ZHANG , Takahiro OKAMATSU
摘要： A method of producing a modified polymer that is capable of reducing heat build-up of a tire, and a modified polymer obtained by the method, a rubber composition including the modified polymer, and a pneumatic tire using the rubber composition, are provided. The method of producing the modified polymer includes modifying a conjugated diene polymer (A) with a nitrone compound (B) having a carboxy group, wherein the nitrone compound (B) is in particulate form, having an average major axis length of not greater than 50 μm.
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公开(公告)号：US20170218185A1
公开(公告)日：2017-08-03
申请号：US15311446
申请日：2014-12-19
CPC分类号： C08L7/00 , B60C1/00 , B60C1/0016 , B60C2200/06 , C08C19/22 , C08K3/04 , C08K3/36 , C08L15/00 , C08L2205/03 , C08L2205/035 , C08L9/00
摘要： An object of the present invention is to provide a rubber composition for a heavy-load tire having excellent low heat build-up when formed into a tire and excellent flowability of the rubber during vulcanization, and a pneumatic tire produced using the rubber composition. The rubber composition for a heavy-load tire contains a diene rubber and a carbon black; the diene rubber containing: a natural rubber; and a modified polymer obtained by modifying a conjugated diene polymer with a nitrone compound; the content of the natural rubber in the diene rubber being not less than 60 mass %; and the content of the modified polymer in the diene rubber being not greater than 40 mass %; and the content of the carbon black being from 30 to 70 parts by mass per 100 parts by mass of the diene rubber.
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公开(公告)号：US20160340446A1
公开(公告)日：2016-11-24
申请号：US15115171
申请日：2014-12-22
IPC分类号： C08C19/22 , C08K3/36 , C07D233/64 , C07C251/48 , C07D213/53 , C08L9/06 , C08L7/00
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.
摘要翻译： 本发明的目的是提供一种改性聚合物，其在改性聚合物形成橡胶组合物时的改性，含有改性聚合物的橡胶组合物和充气轮胎显着降低发热，其中橡胶 使用组合。 本发明的改性聚合物是通过用硝酮化合物（B）改性苯乙烯 - 共轭二烯共聚物（A）而获得的改性聚合物。 在改性聚合物中，苯乙烯 - 共轭二烯共聚物（A）中苯乙烯单元的含量为10质量％以上，苯乙烯 - 共轭二烯共聚物（A）中所含的全部双键中的乙烯基键的比例为 为5摩尔％以上。
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公开(公告)号：US20160215187A1
公开(公告)日：2016-07-28
申请号：US14917481
申请日：2014-08-21
发明人： Takahiro OKAMATSU
CPC分类号： C09K3/12 , B29C73/163 , C08L5/06
摘要： An object of the present invention is to provide a coagulant with excellent coagulability performance, and a tire puncture repair kit that uses the coagulant. The present invention is a coagulant of a tire puncture repair liquid, the coagulant including at least one component selected from the group consisting of a plant protein, a pectin, a cellulose, a phospholipid and a fatty acid glyceride, and a tire puncture repair kit that uses the coagulant.
摘要翻译： 本发明的目的是提供一种具有优异的凝固性能的凝结剂和使用该凝结剂的轮胎穿刺修复试剂盒。 本发明是轮胎穿刺修复液的凝结剂，所述凝结剂包括选自植物蛋白质，果胶，纤维素，磷脂和脂肪酸甘油酯中的至少一种成分，以及轮胎穿刺修复试剂盒 使用凝结剂。
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公开(公告)号：US20180072874A1
公开(公告)日：2018-03-15
申请号：US15565621
申请日：2016-04-13
CPC分类号： C08L9/06 , B60C1/00 , B60C1/0016 , C08C19/22 , C08K3/00 , C08L15/00 , C08L2205/03 , C08L2205/06 , C08L9/00 , C08K3/36
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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公开(公告)号：US20170327601A1
公开(公告)日：2017-11-16
申请号：US15535579
申请日：2015-12-15
CPC分类号： C08C19/22 , B29D29/06 , B60C1/0016 , B65G15/32 , B65G15/34 , B65G2812/02198 , C08L9/00 , C08L9/02 , C08L9/06 , C08L15/00 , C08L2205/02 , C08L2205/035
摘要： The present invention is to provide: a rubber composition which has excellent wet grip performance and also has excellent wear resistance while maintaining high elongation; and a pneumatic tire and a conveyer belt each of which is manufactured using the rubber composition. The present invention provides: a rubber composition containing a modified diene rubber, in the modified rubber, from 0.02 to 4 mol % of double bonds contained in a diene rubber being modified into hydroxy groups by reacting at least one type of diene rubber selected from the group consisting of styrene butadiene rubbers, butadiene rubbers, and nitrile butadiene rubbers with a hydroxy group-containing nitrone compound having both a hydroxy group and a nitrone group; and a pneumatic tire and a conveyer belt each of which is manufactured using the rubber composition.
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公开(公告)号：US20170203525A1
公开(公告)日：2017-07-20
申请号：US15479533
申请日：2017-04-05
发明人： Takahiro OKAMATSU
CPC分类号： B29C73/163 , B29K2023/083 , C08L3/02 , C08L3/12 , C08L7/00 , C08L23/0853 , C08L2201/52 , C08L2205/02 , C08L2205/035
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：US20170080754A1
公开(公告)日：2017-03-23
申请号：US15311481
申请日：2014-12-19
IPC分类号： B60C1/00 , C09D107/00
CPC分类号： B60C1/0041 , B60C1/00 , C08C19/22 , C08K3/04 , C08K3/32 , C08K5/16 , C08L7/00 , C08L9/00 , C08L9/06 , C08L15/00 , C08L91/00 , C09D107/00 , D07B1/06
摘要： A rubber composition for coating a fiber cord includes a diene rubber, a carbon black, and a nitrone compound having a carboxy group; the diene rubber includes a natural rubber and a styrene-butadiene rubber and/or a butadiene rubber, wherein a content of the natural rubber in a total of the diene rubber and the nitrone compound is not greater than 65 mass %; a content of the carbon black is 40 to 67 parts by mass per 100 parts by mass of a total of the diene rubber and the nitrone compound; and a content of the nitrone compound is 0.1 to 10 parts by mass per 100 parts by mass of a total of the diene rubber and the nitrone compound. Such rubber composition for coating a fiber cord has excellent low heat build-up when a tire is produced and excellent adhesiveness with carcass cord.
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公开(公告)号：US20170073507A1
公开(公告)日：2017-03-16
申请号：US15311332
申请日：2014-12-19
CPC分类号： C08C19/22 , B60C1/00 , B60C1/0016 , B60C11/005 , C08F8/30 , C08K3/04 , C08K5/32 , C08L7/00 , C08L15/00 , C08L2205/03
摘要： The present invention provides a rubber composition for an undertread, the rubber composition achieving excellent low heat build-up and high elastic modulus when formed into a tire; and a pneumatic tire that includes the rubber composition. The rubber composition for an undertread contains a diene rubber and a carbon black. The diene rubber contains a natural rubber and a modified polymer that is obtained by reacting a nitrone compound with a double bond of a conjugated diene polymer. The content of the natural rubber in the diene rubber is 60 mass % or greater, the content of the modified polymer in the diene rubber is from 8 to 40 mass %, the content of the carbon black is from 30 to 67 parts by mass per 100 parts by mass of the diene rubber, and the nitrogen adsorption specific surface area of the carbon black is from 20 to 60 m2/g.
摘要翻译： 本发明提供了一种用于底布的橡胶组合物，该橡胶组合物在形成轮胎时具有优异的低发热性和高弹性模量; 以及包括该橡胶组合物的充气轮胎。 用于底盘的橡胶组合物含有二烯橡胶和炭黑。 二烯橡胶含有天然橡胶和通过使硝酮化合物与共轭二烯聚合物的双键反应得到的改性聚合物。 二烯橡胶中天然橡胶的含量为60质量％以上，二烯系橡胶中的改性聚合物的含量为8〜40质量％，碳黑的含量为30〜67质量份/ 二烯橡胶100质量份，炭黑的氮吸附比表面积为20〜60m 2 / g。
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公开(公告)号：US20160355057A1
公开(公告)日：2016-12-08
申请号：US15114956
申请日：2014-12-22
摘要： An object of the present invention is to provide a rubber composition capable of producing a pneumatic tire with both satisfactory heat build-up reduction and excellent wet skid performance, and a pneumatic tire comprising the rubber composition. The rubber composition of the present invention contains a diene-based rubber containing from 5 to 40 mass % of a modified butadiene rubber and a white filler. The modified butadiene rubber is a modified polymer obtained by modifying an unmodified butadiene rubber (A) with a nitrone compound (B) having a carboxy group.
摘要翻译： 本发明的目的是提供一种能够制造具有令人满意的增热降低和优异的防滑性能的充气轮胎的橡胶组合物，以及包含橡胶组合物的充气轮胎。 本发明的橡胶组合物含有含有5〜40质量％的改性丁二烯橡胶和白色填料的二烯系橡胶。 改性丁二烯橡胶是通过用具有羧基的硝酮化合物（B）改性未改性丁二烯橡胶（A）而获得的改性聚合物。
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