| 摘要 |
PURPOSE:To obtain the titled tire, having a case member rubber prepared by blending a diene based rubber containing specific amounts of natural rubber and polyisoprene with a tin maleate compound in a specific proportion and consisting of rubber having improved heat aging fracture characteristics. CONSTITUTION:A tire obtained by using a case member prepared by blending (A) 100pts.wt. diene based rubber containing >=20wt% natural rubber, polyisoprene rubber or a blended rubber of both with (B) 0.1-5.0pts.wt. organotin maleate compound, e.g. bis(di-n-butyltin monoalkylato)maleate, etc., expressed by the formula (R is butyl, octyl, aryl, etc).
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