RUBBER COMPOSITION AND TIRE USING THE SAME
    31.
    发明申请
    RUBBER COMPOSITION AND TIRE USING THE SAME 有权
    橡胶组合物和轮胎使用相同

    公开(公告)号:US20100218871A1

    公开(公告)日:2010-09-02

    申请号:US12664013

    申请日:2008-06-10

    IPC分类号: B60C5/00 C08L9/00 C08L9/06

    摘要: There are provided a rubber composition simultaneously improving low loss factor and wear resistance as compared with the conventional ones as well as a tire using such a rubber composition.The invention lies in a rubber composition using a modified conjugated diene rubber and being excellent in the low loss factor and wear resistance as well as a tire. The rubber composition of the invention is formed by compounding a filler to a rubber component containing (A) a modified conjugated diene rubber having a cis-bond content in conjugated diene portion of not less than 87% and a vinyl bond content of not more than 2% and containing a functional group reactive with a filler and (B) a modified polymer having a modifying functional group number per 1 molecule of an unmodified polymer of not less than 0.6.

    摘要翻译: 提供与常规橡胶组合物相比同时改善低损耗因数和耐磨性的橡胶组合物以及使用这种橡胶组合物的轮胎。 本发明在于使用改性共轭二烯橡胶的橡胶组合物,低损耗因子和耐磨性以及轮胎性能优异。 本发明的橡胶组合物是通过将填料与含有(A)共轭二烯部分中的顺式键含量不低于87%的改性共轭二烯橡胶和乙烯基键含量不大于 2%,含有与填料反应的官能团,(B)每1分子未改性聚合物的修饰官能团数为0.6以上的改性聚合物。

    Rubber composition for tire and tire made therefrom
    35.
    发明申请
    Rubber composition for tire and tire made therefrom 审中-公开
    由轮胎制成的轮胎和轮胎用橡胶组合物

    公开(公告)号:US20060167160A1

    公开(公告)日:2006-07-27

    申请号:US10518629

    申请日:2003-06-19

    IPC分类号: C08K3/34

    摘要: A rubber composition for tires which comprises 100 parts by mass of (A) copolymer (a) which is a styrene-butadiene copolymer having a weight-average molecular weight of 4.0×105 to 3.0×106; as obtained in accordance with gel permeation chromatography and expressed as the value of corresponding polystyrene, a content of the bound styrene St(a) of 10 to 50% by mass and a content of the vinyl unit in the butadiene portion of 20 to 70%; 10 to 200 parts by mass of (B) copolymer (b) which is a hydrogenated styrene-butadiene copolymer having a weight-average molecular weight of 5.0×103 to 2.0×105, as obtained in accordance with gel permeation chromatography and expressed as the value of corresponding polystyrene, a content of the bound styrene St(b) which is in the range of 25 to 70% by mass and satisfies a relation expressed by equation (I) and a fraction of hydrogenated double bond in the butadiene portion of 60% or greater and (C) at least one substance selected from resins providing tackiness to the rubber composition and liquid polymers having a weight-average molecular weight of 1,000 to 50,000. St(b)≧St(a)+10   (I)

    摘要翻译: 一种轮胎用橡胶组合物,其包含100质量份的(A)共聚物(a),其是重均分子量为4.0×10 5〜3.0×10 6的苯乙烯 - 丁二烯共聚物, 6 ; 根据凝胶渗透色谱法获得,并表示为相应的聚苯乙烯的值,结合苯乙烯St(a)的含量为10〜50质量%,丁二烯部分中乙烯基单元的含量为20〜70% ; 10重量份的(B)共聚物(b)为重量平均分子量为5.0×10 3〜2.0×10 5的氢化苯乙烯 - 丁二烯共聚物10〜200质量份 >,根据凝胶渗透色谱法得到,表示为相应的聚苯乙烯的值,结合苯乙烯St(b)的含量在25〜70质量%的范围内,满足由式(I ),丁二烯部分中的氢化双键的一部分为60%以上,(C)选自对橡胶组合物提供粘合性的树脂和重均分子量为1,000〜50,000的液态聚合物中的至少一种物质。 <?in-line-formula description =“In-line formula”end =“lead”?> St(b)> = St(a)+10(I)<?in-line-formula description =“In-line 公式“end =”tail“?>