| 摘要 |
PURPOSE:To improve the performance of movement without sacrificing resistance to abrasion by using rubber compound of specific rate of composition for the cap tread part of a tyre. CONSTITUTION:Rubber of 100pts.wt. consisting of styrene butadiene copolymer rubber 10-50wt%, with combined styrene of more than 30-50wt% and butadiene part combination form of more than 20% 1, 2 vinyl combination and more than 15% cis 1, 4 combination, and other more than one kind of diene group rubber 90-50pts.wt. part is compounded with carbon black of more than 75pt.wt. Rubber compound thus obtained is used for the cap tread part of a pneumatic tyre. |
