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2. 发明授权

US06598637B2 Pneumatic tire having a rubber component containing a block styrene butadiene copolymer 失效
标题翻译：具有含有嵌段苯乙烯丁二烯共聚物的橡胶组分的气动轮胎
公开(公告)号：US06598637B2
公开(公告)日：2003-07-29
申请号：US09902117
申请日：2001-07-10
申请人： Annette Lechtenböhmer , Maurice Peter Catharina Jozef Klinkenberg
发明人： Annette Lechtenböhmer , Maurice Peter Catharina Jozef Klinkenberg
IPC分类号： B60C500
CPC分类号： C08L9/06 , B60C1/00 , C08F297/04 , C08L9/00 , C08L21/00 , C08L53/02 , Y10T152/10495 , C08L2666/02 , C08L2666/24 , C08L2666/04
摘要： There is disclosed a pneumatic tire having a rubber component comprising a sulfur cured rubber composition composed of, based on 100 parts by weight of rubber (phr): (a) 99 to 50 parts by weight of a first rubber containing olefinic unsaturation; and (b) 1 to 50 parts by weight of a second rubber which is different from said first rubber and which is an elastomeric block copolymer of (1) from 15 to 65 percent by weight, based on the total block copolymer, of butadiene, and (2) from 35 to 85 percent by weight, based on the total block copolymer, of styrene, which block copolymer has: (a) at least two blocks A which have polymerized units of styrene, a glass transition temperature Tg above 25° C. and forms a rigid phase, and (b) at least one elastomeric block which is composed of about 25 to 70 percent by weight of butadiene and 75 to 30 percent by weight of styrene, and which has polymerized B/A units of styrene and butadiene in a random structure; a glass transition temperature Tg from −50° C. to 25° C., and is located between two blocks A and forms a flexible phase, and the amount of the rigid phase accounts for 5 to 40 percent by volume.
摘要翻译：公开了一种具有橡胶组分的充气轮胎，该橡胶组分包含基于100重量份的橡胶（phr）：（a））99至50重量份的含有烯属不饱和的第一橡胶的硫硫化橡胶组合物; 和（b）1至50重量份的与所述第一橡胶不同的第二橡胶，并且其是基于总嵌段共聚物的（1）15至65重量％的丁二烯的弹性体嵌段共聚物，和（2）基于总嵌段共聚物的35至85重量％的苯乙烯，该嵌段共聚物具有：（a）至少两个具有苯乙烯聚合单元的嵌段A，玻璃化转变温度Tg高于25° 并且形成刚性相，和（b）至少一种弹性体嵌段，其由约25至70重量％的丁二烯和75至30重量％的苯乙烯组成，并且其具有聚合的B / A单元的苯乙烯和丁二烯在随机结构中; 玻璃化转变温度Tg为-50℃至25℃，并且位于两个块A之间并形成柔性相，并且刚性相的量占5至40体积％。

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