Furazan oxide modified rubbers and rubber compositions...

Details Furazan oxide modified rubbers and rubber compositions... Furazan oxide modified rubbers and rubber compositions...

C - Chemistry, Metallurgy

08

L

6/123, 402/422,

C08L 19/02 (2006.01) B60C 1/00 (2006.01) C08C 19/22 (2006.01) C08K 5/35 (2006.01)

Patent

CA 1276382

Title: FURAZAN OXIDE MODIFIED RUBBERS AND RUBBER COMPOSITIONS CONTAINING SAME ABSTRACT OF THE DISCLOSURE Modified polymer rubber compositions prepared in solution and which exhibit desirable properties, particularly when used to form tires are described. The modified rubber compositions comprise the reaction product, prepared in solution, of at least one rubber having an unsaturated carbon chain and up to about 10 weight percent, based on the weight of the rubber, of at least one aromatic furazan oxide of the partial formula Image (I) wherein the depicted carbon atoms are a part of a single fused aromatic ring. The reaction is conducted by heating the solution at an elevated temperature which may be any temperature up to the decomposition temperature of the furazan oxide. The uncured polymer rubber compositions of the invention do not have the strong characteristic odor of the furazan oxide decomposition products which facilitate handling and storage of these materials.

502093

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