INNER-LINER RUBBER COMPOSITION FOR AIR-CONTAINED TIRE

摘要

PURPOSE: An inner-liner rubber composition for air-contained tire is provided to save the production costs and to improve the essential properties of tire inner-liners such as anti-air penetration, anti-cracking and anti-heat aging. CONSTITUTION: An inner-liner rubber composition for a radial air-contained tire used in a tubeless truck according to the present invention comprises: a) 70 to 90 parts by weight of bromobutyl rubber; b) 20 to 60 parts by weight of recycled butyl rubber; c) 1.0 to 3.0 parts by weight of zinc oxide; d) 0 to 2 parts by weight of sulfur; and e) conventional additives.