The invention generally relates to thermoplastic blends having improved properties.
Optionally, these blends may be dynamically vulcanized. More specifically, this
invention is directed to a composition comprising a blend of chloromethylated(styrene-isobutylene)
polymer and a thermoplastic resin selected from the group consisting of polyamides,
polyesters, polycarbonates, polysulfones, polyacetals, polyacetones, acrylonitrile-butadiene
styrene resins, polyphenylene oxide, polyphenylene sulfide, styrene-acrylonitrile
resins, styrene-maleic anhydride resins, polyamides, aromatic polyketones, ethylene
vinyl alcohol polymer and mixtures thereof. Tires and tire components such as air
permeation prevention films comprising these compositions are also provided.