发明申请
- 专利标题: PNEUMATIC TIRE
- 专利标题(中): 气动轮胎
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申请号: US13027300申请日: 2011-02-15
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公开(公告)号: US20120208919A1公开(公告)日: 2012-08-16
- 发明人: Carlo Kanz , Christian Jean-Marie Kaes , Olivio Jean-Baptiste Pagliarini , Marc Weydert , Uwe Ernst Frank
- 申请人: Carlo Kanz , Christian Jean-Marie Kaes , Olivio Jean-Baptiste Pagliarini , Marc Weydert , Uwe Ernst Frank
- 主分类号: B60C1/00
- IPC分类号: B60C1/00
摘要:
The invention is directed to a pneumatic tire having a tread comprising a vulcanizable rubber composition comprising, (A) 10 to 40 phr of a polybutadiene rubber having a microstructure comprised of about 96 to about 98 percent cis 1,4-isomeric units, about 1 to about 3 percent trans 1,4-isomeric units and about 0.3 to about 1 percent vinyl 1,2-content; Mn ranging from about 230,000 to about 250,000 with a heterogeneity index ranging from about 1.5/1 to about 2/1, and a Tg ranging from about −104 to about −109° C.; (B) 60 to 90 phr of a solution polymerized styrene-butadiene rubber functionalized with an alkoxysilane group and a primary amine group; (C) 60 to 100 phr of silica having a CTAB of between 40 and 525 m2/g, a BET of between 45 and 550 m2/g; and (D) less than 5 phr of carbon black.
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