Title: Improved chemical curing of epoxidized diene polymers using aromatic anhydride curing agents
Application Number: 97192284 Application Date: 1997.02.13
Publication Number: 1211262 Publication Date: 1999.03.17
Approval Pub. Date: 2004.05.19 Granted Pub. Date: 2004.05.19
International Classifi-cation: C08C19/40;C08G59/42
Applicant(s) Name: Shell Internationale Research Maatschappij B. V. Address:
Inventor(s) Name: M. A. Masse
Attorney & Agent: chen jizhuang
Abstract:
    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 DEG 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.
Time: 10