CPC C08L 65/00 (2013.01) [B60C 1/0016 (2013.01); B60C 11/0008 (2013.01); C08G 61/08 (2013.01); C08K 3/04 (2013.01); C08K 3/36 (2013.01); C08L 9/00 (2013.01); B60C 2011/0025 (2013.01); C08L 2205/025 (2013.01); C08L 2312/00 (2013.01)] | 15 Claims |
1. A rubber compound for tire treads, comprising:
30 phr to 70 phr of a cyclopentene ring-opening rubber having a glass transition temperature (Tg) of −120° C. to −80° C., a ratio of cis to trans of 5:95 to 20:80, and a weight average molecular weight (Mw) of 300 kDa to 500 kDa; and
20 phr to 60 phr of a high vinyl polybutadiene rubber having a vinyl content of at least about 50% vinyl.
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