PROCEDURE FOR THE PROMOTION OF COPOLYMERS CONTAINING CONNECTED DIENOMETS IN THE POLICE MARKET

摘要

Copolymers having in their chain conjugated diene unsaturations are obtained by reacting an isoolefin compound with a polyene polyconjugated linear conjugated double bonds. The reaction is conducted at sub-zero temperatures in the presence of an aluminum alkyl catalyst of the kind used in the preparation of Butyl Rubber. The technical specifications of the copolymers so prepared are greatly improved over those of Butyl Rubber.