Invention Grant
US08042582B2 Pneumatic tire having conductive layer and rubber cement layer including compound having oxyethylene unit 失效
具有导电层的气动轮胎和包含具有氧化乙烯单元的化合物的橡胶胶层

Pneumatic tire having conductive layer and rubber cement layer including compound having oxyethylene unit
Abstract:
A pneumatic tire is equipped with at least a tread part, a sidewall part, a bead part, and a carcass extending from tread part through sidewall part to bead part, and provided with a breaker part on the outside of carcass in the radial direction of the tire. The volume resistivity of each of a tread rubber, a sidewall rubber, a breaker rubber, and a carcass rubber formed in the tread part, the sidewall part, the breaker part, and the carcass respectively is set to 1×1012 Ω·cm or more. A conductive layer having volume resistivity of 1×1011 Ω·cm or less is provided between a carcass ply constituting the carcass and the sidewall rubber and has an exposed part to the tire surface. A rubber cement layer contacting with at least a part of the exposed part of the conductive layer and at least a part of the region that becomes a grounding surface in the tread part to the road surface is provided.
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