PROCESS FOR CROSSLINKING CARBOXYLATED NITRILE RUBBER, HYDROGENATING CARBOXYLATED NITRILE RUBBER, THE CROSSLINKED RUBBER AND ITS' USES

摘要

A process has now been discovered that permits thesimultaneous crosslinking and derivatization of an, optionallyhydrogenated, polymer whose backbone is composed of aconjugated diene, an unsaturated nitrile and an unsaturatedcarboxylic acid in the presence of a coupling/condensing agent.This permits the preparation of a novel polymeric material thatis an optionally hydrogenated, polymer of a conjugated diene,an unsaturated nitrile and a derivatized unsaturated acid. Ithas also been found that this novel polymeric material hasunexpected and valuable properties.