Pneumatic tyre having an innerliner comprised or butyl rubber and dispersion of pre-cured diene-based rubber

摘要

A pneumatic rubber tire having an integral innerliner of a sulfur cured rubber composition compri (A) 100 phr of elastomers comprising: a butyl type rubber as: (a) from 60 to 100 phr of halobutyl rubber selected from at least one of bromobutyl rubber and chlorobutyl rubber and their mixtures, and (b) zero to 30 phr of butyl rubber; (B) from 2 to 4 phr of particulate pre-cured rubber filer comprising: from 2 to 4 phr of particles of sulfur pre-cured diene-based rubber composition comprising of at least one elastomer selected from polymers of at least one of isoprene and 1,3-butadiene and copolymers of styrene and at least one of isoprene and 1,3-butadiene and their mixtures; (C) from 30 to 110 phr of reinforcing filter comprised of: from 30 to 110 phr of rubber reinforcing carbon black, or from 5 to 70 phr of rubber reinforcing carbon black and from 25 to 70 phr of silica.