Rubber composition for inner liners of tyres.

摘要

A rubber composition suitable for use in inner liners of pneumatic tyres and having an improved gas impermeablity which comprises a rubber and 5 to 60 parts by weight of an acrylonitrile thermoplastic resin per 100 parts by weight of the rubber. The composition provides inner liners having an excellent retainability of inner pressure of tyres, thus enabling to decrease the weight of tyres by decreasing its gauge or to increase the inner pressure of tyres to higher levels so as to achieve energy saving.