IMPROVED CHEMICAL CURING OF EPOXIDIZED DIENE POLYMERS USING AROMATIC ANHYDRIDE CURING AGENTS

摘要

The invention relating to a process for curing an epoxidized diene polymer for use in adhesives, sealants, and coatings which comprises contacting the polymer with an aromatic anhydride curing agent at a polymer/aromatic anhydride molar ratio from 0.5/1 to 2.0/1.0, and optionally from 0.1 to 10 phr of an accelerator, at a temperature of from 100 to 200 °C for a period of 10 minutes to six hours. The invention further relates to a cross-linked epoxidized polydiene polymer and to adhesive, sealant or coating compositions.