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21. 发明专利

JP2004359806A Pneumatic tire 审中-公开
公开(公告)号：JP2004359806A
公开(公告)日：2004-12-24
申请号：JP2003159491
申请日：2003-06-04
申请人： Yokohama Rubber Co Ltd:The , 横浜ゴム株式会社
发明人： SUZUKI YOSHIHIKO , NAKAYAMA AKIHIKO
IPC分类号： B60C1/00 , B60C15/04 , C08K3/04 , C08K3/06 , C08L9/00
摘要： PROBLEM TO BE SOLVED: To enhance operation efficiency by preventing generation of sulfur blooming without deteriorating durability of a bead.
SOLUTION: The pneumatic tire comprises a bead core and a covering rubber covering the same, where the covering rubber has a thickness of 0.3-2 mm in an unvulcanized state and is comprised of a rubber composition which comprises 100 pts. wt. of a diene rubber, 130-190 pts. wt. of the total compounded amount of carbon black and other inorganic fillers and 5-7.5 pts. wt. of sulfur having an insoluble sulfur content of at least 80 wt% and has a durometer hardness of at least 87A.
COPYRIGHT: (C)2005,JPO&NCIPI

22. 发明专利

JP2009155484A Diene-based rubber composition 审中-公开
标题翻译：基于橡胶的橡胶组合物
公开(公告)号：JP2009155484A
公开(公告)日：2009-07-16
申请号：JP2007335558
申请日：2007-12-27
申请人： Yokohama Rubber Co Ltd:The , 横浜ゴム株式会社
发明人： SUZUKI YOSHIHIKO
IPC分类号： C08L9/00 , B60C1/00 , C08K3/04 , C08L95/00
摘要： PROBLEM TO BE SOLVED: To provide a diene-based rubber composition suitably usable as a vulcanized molded material such as a bead insulation rubber, a bead core-covering rubber, etc., used for forming a part of the bead core part of a pneumatic tire. SOLUTION: This diene-based rubber composition is obtained by blending by the blending amount of 140 to 180 pts.wt. in total of bituminous coal pulverent, carbon black and fillers other than these, including 5 to 38 pts.wt. bituminous coal pulverent based on 100 pts.wt. diene-based rubber. In the diene-based rubber composition, the viscosity of unvulcanized rubber composition is decreased, which decides its processability and also to improve its hardness and tensile elongation at break by replacing a certain amount of the added fillers with the bituminous coal pulverent to make the total blending amount of the bituminous coal pulverent, carbon black and the other fillers as a constant amount. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：待解决的问题：提供适合用作形成胎圈芯部分的一部分的硫化成型材料如胎圈绝缘橡胶，胎圈芯覆盖橡胶等的二烯系橡胶组合物的充气轮胎。解决方案：该二烯基橡胶组合物通过共混量为140〜180重量份而得到。总共有烟煤，炭黑和其他填料，其中包括5〜38重量份。基于100重量级的烟煤二烯基橡胶。在二烯类橡胶组合物中，未硫化橡胶组合物的粘度降低，这决定了其加工性能，并且还通过用沥青煤粉代替一定量的添加的填料来改善其硬度和断裂拉伸伸长率，以使总量沥青煤粉，炭黑和其他填料的混合量为一定量。版权所有（C）2009，JPO＆INPIT

23. 发明专利

JP2008038028A Rubber composition for tire inner liner and pneumatic tire using the same 有权
标题翻译：轮胎内衬橡胶组合物及其使用的气动轮胎
公开(公告)号：JP2008038028A
公开(公告)日：2008-02-21
申请号：JP2006214673
申请日：2006-08-07
申请人： Yokohama Rubber Co Ltd:The , 横浜ゴム株式会社
发明人： SUZUKI YOSHIHIKO
IPC分类号： C08L23/22 , B60C5/14 , C08K5/521 , C08L23/28
摘要： PROBLEM TO BE SOLVED: To provide a rubber composition for tire inner liners, having excellent processability, gas intercepting property and ageing resistance. SOLUTION: This rubber composition for tire inner liners comprises (A) a rubber component containing butyl rubber, a halogenated butyl rubber or their combination, and (B) a phosphate in an amount of 3 to 20 pts.wt. per 100 pts.wt. of the rubber component (A). COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种轮胎内衬的橡胶组合物，具有优异的加工性，阻气性和耐老化性。解决方案：该轮胎内衬用橡胶组合物包含（A）含有丁基橡胶，卤化丁基橡胶或其组合的橡胶组分，和（B）3至20重量份的磷酸盐。每100 pts.wt 的橡胶组分（A）。版权所有（C）2008，JPO＆INPIT

24. 发明专利

JP2007302715A Rubber composition and pneumatic tire 有权
标题翻译：橡胶组合物和气动轮胎
公开(公告)号：JP2007302715A
公开(公告)日：2007-11-22
申请号：JP2006129500
申请日：2006-05-08
申请人： Yokohama Rubber Co Ltd:The , 横浜ゴム株式会社
发明人： SUZUKI YOSHIHIKO
IPC分类号： C08L9/00 , B60C1/00 , B60C15/06 , C08K3/04 , C08L7/00
摘要： PROBLEM TO BE SOLVED: To provide a rubber composition capable of improving the abrasion resistance of a rim cushion part making a contact with the rim of a wheel, fatigue disruption resistance and set proof property at the same time, and a pneumatic tire having the rim cushion part obtained by using the rubber composition.
SOLUTION: This rubber composition having the rubber consisting of 18 to 55 pts.wt. natural rubber and/or polyisoprene rubber, 43 to 80 pts.wt. polybutadiene rubber and ≥2 and
摘要翻译：要解决的问题：提供一种能够提高与轮的轮缘接触的轮辋缓冲部件的耐磨性的橡胶组合物，同时具有耐疲劳破坏性和凝固性能的充气轮胎具有通过使用橡胶组合物获得的边缘衬垫部分。解决方案：该橡胶组合物具有18至55重量份的橡胶天然橡胶和/或聚异戊二烯橡胶，43至80重量份聚丁二烯橡胶和≥2和<10重量份苯乙烯 - 丁二烯共聚物橡胶作为橡胶组分，并且使用基于100重量％苯乙烯 - 丁二烯共聚物橡胶的苯乙烯 - 丁二烯共聚物橡胶的≤35重量％苯乙烯含量，优选15至35重量％。版权所有（C）2008，JPO＆INPIT

25. 发明专利

JP2004307619A Rubber composition and pneumatic tire using it as tread rubber 审中-公开
公开(公告)号：JP2004307619A
公开(公告)日：2004-11-04
申请号：JP2003101907
申请日：2003-04-04
申请人： Yokohama Rubber Co Ltd:The , 横浜ゴム株式会社
发明人： SUZUKI YOSHIHIKO , OCHIAI TETSUO , INOUE YOSHIHISA
IPC分类号： B60C1/00 , B60C11/00 , C08K3/04 , C08K3/06 , C08K5/39 , C08K5/44 , C08L7/00 , C08L9/00
摘要： PROBLEM TO BE SOLVED: To provide a rubber composition which, when used as a tire tread, compatibilizes a high abrasion resistance with a low fuel consumption and exhibits a high elongation at break, hence decreasing tread fracture in a metal mold in the vulcanization step of a tire production process.
SOLUTION: The rubber composition is prepared by compounding 100 pts.wt. specific rubber component containing 10-50 pts.wt. polybutadiene rubber (BR) with 35-55 pts.wt. carbon black (CB), a pts.wt. sulfur, b pts.wt. compounding ingredient B represented by the formula: R
2 N-(C=S)-S-S-(CH
2 )
x -S-S-(C=S)-NR
2 , and c pts.wt. at least one sulfenamide-based vulcanization accelerator, provided a, b, and c simultaneously satisfy the relations represented by 1.2≤a+b/2≤2 and 0.6≤c/(a+b/2)≤1. The BR mainly comprises cis-1,4-BR and has a solution viscosity of 90-150 mPa s. The CB has a nitrogen adsorption specific surface area of 120 m
2 /g or more, a half value width ΔD
st of an agglomerate distribution by centrifugal precipitation of 70 nm or less, and a specific coloring power of 130 or higher.
COPYRIGHT: (C)2005,JPO&NCIPI

26. 发明专利

JP2004306730A Pneumatic tire 审中-公开
公开(公告)号：JP2004306730A
公开(公告)日：2004-11-04
申请号：JP2003101639
申请日：2003-04-04
申请人： Yokohama Rubber Co Ltd:The , 横浜ゴム株式会社
发明人： SUZUKI YOSHIHIKO , OCHIAI TETSUO , INOUE YOSHIHISA
IPC分类号： B60C11/00 , B60C1/00
摘要： PROBLEM TO BE SOLVED: To provide a pneumatic tire having excellent wear resistance and high resistance against cutting, chipping, and heat as well as good appearance after wear.
SOLUTION: This pneumatic tire includes a tread part consisting of a three-layer structure of a cap A, a cap B and an under C from a tire surface; rubber composition which constitutes the cap A, comprising single natural rubber or ablend of natural rubber or diene-based rubber; the rubber composition constituting the cap B, comprising of sulfur a pts.wt, b pts.wt. of compounding agent B indicated by the formula R
2 N-(C=S)-S-S-(CH
2 )x-S-S-(C=S)-NR
2 , and a sum of at least one of sulfenamide-based vulcanizing accelerator, c pts.wt., to 100 pts.wt. rubber composition comprising natural rubber and/or diene-based rubber and a, b and c simultaneously satisfy a relation of b≥0.2, 1.5≤a+b/2≤2.5, 0.5≤c/(a+b/2)≤0.9; and the rubber composition constituting the under C contains the blend of the single natural rubber or the natural rubber and the diene-based rubber.
COPYRIGHT: (C)2005,JPO&NCIPI

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