Rubber compositions containing n,n'-bis(hydroxyphenyl)maleamide

Details Rubber compositions containing n,n'-bis(hydroxyphenyl)maleamide Rubber compositions containing n,n'-bis(hydroxyphenyl)maleamide

C - Chemistry, Metallurgy

08

L

C08L 21/00 (2006.01) C08K 5/20 (2006.01)

Patent

CA 2209439

The present invention relates to rubber compositions containing a N,N'-bis(hydroxyphenyl)maleamide. The rubbers modified with the N,N'-bis(hydroxyphenyl)maleamide exhibit improved reversion resistance and increased tear strengths. The N,N'-bis(hydroxyphenyl)maleamide may also be used as a replacement for resorcinol in rubber compositions and function as a methylene acceptor for reaction with conventional methylene donors.

La présente invention concerne des compositions de caoutchouc contenant un N,N'-bis(hydroxyphényl)maléamide. Les caoutchoucs modifiés avec le N,N'-bis(hydroxyphényl)maléamide offrent une meilleure résistance à la réversion et une meilleure résistance à la déchirure. Le N,N'-bis(hydroxyphényl)maléamide peut également être utilisé pour remplacer le résorcinol dans les compositions de caoutchouc et agit comme un accepteur de méthylène dans une réaction avec des donneurs de méthylène traditionnels.

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