Succinic anhydride derivatives as a scorch inhibitor for...

Details Succinic anhydride derivatives as a scorch inhibitor for... Succinic anhydride derivatives as a scorch inhibitor for...

C - Chemistry, Metallurgy

08

K

402/296, 400/640

C08K 5/09 (2006.01) C08K 3/22 (2006.01) C08K 5/092 (2006.01) C08K 5/1539 (2006.01) C08L 13/00 (2006.01)

Patent

CA 1206688

ABSTRACT OF THE DISCLOSURE SUCCINIC ANHYDRIDE DERIVATIVES AS A SCORCH INHIBITOR FOR CARBOXYLATED RUBBERS Scorch (the premature cross-linking of an elastomer) is a problem that is often encountered in carboxylated rubbers. Succinic anhydride derivatives (alkenyl succinic anhydrides, alkyl succinic anhydrides, and their corresponding dicarboxylic acids) can be used to greatly improve the scorch resistance of carboxylated rubbers. These succinic anhydride derivatives can be distributed throughout a carboxylated rubber before or after coagulation using any procedure that will result in a thorough mixing to form a rubber composition with improved scorch resistance.

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