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RUBBER COMPOSITION FOR TIRE CORD COATING, BREAKER EDGE STRIP, BREAKER CUSHION OR CORD-ADJOINING STRIP, AND PNEUMATIC TIRE
RUBBER COMPOSITION FOR TIRE CORD COATING, BREAKER EDGE STRIP, BREAKER CUSHION OR CORD-ADJOINING STRIP, AND PNEUMATIC TIRE
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机译:轮胎涂层的橡胶组合物,条形边缘条,条形缓冲垫或条形条,以及气动轮胎
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摘要
Provided are a rubber composition for a tire cord topping, a breaker edge strip, a breaker cushion, or a strip adjacent to cords, which achieves a balanced improvement in handling stability, fuel economy, durability, ride quality, and adhesion; and pneumatic tires including the same. The rubber composition includes: an isoprene-based rubber; a phenol resin and/or an alkylphenol resin; and a partial condensate of HMMM and/or a partial condensate of HMMPME, wherein an amount of the isoprene-based rubber is 60% by mass or higher per 100% by mass of the rubber component; and a combined amount of the phenol resin and the alkylphenol resin is 2-3.9 parts by mass, a combined amount of the partial condensate of HMMM and the partial condensate of HMMPME is 0.5-5 parts by mass, and an amount of silica is at most 15 parts by mass, each per 100 parts by mass of the rubber component.
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