Tyre with belt reinforcement between carcass and running tread - has polar rubber separating coating vulcanised on belt layer

摘要

Vehicle tyre with belt-type reinforcement layer between carcass and running tread based on oil-extended rubber compsns., has a separating layer contg. polar rubber elastomers vulcanised onto the belt layer. The separating layer comprises a rubber compsn. of polar elastomers beside moderately polar elastomers e.g. 50-100, pref. 55-85 pbw strongly polar elastomers and 50-10, pref. 45-15 pbw, moderately polar elastomers. Examples for the former are nitrile rubber, halobutyl and/or chloroprene rubber; and the latter are pref. natural rubber and/or SBR. Migration of the oil extender is prevented.