Crosslinking composition for butyl rubber or halobutyl...

Details Crosslinking composition for butyl rubber or halobutyl... Crosslinking composition for butyl rubber or halobutyl...

C - Chemistry, Metallurgy

08

J

252/43, 400/4710

C08J 3/24 (2006.01) C08L 23/22 (2006.01) C08L 23/28 (2006.01) C08L 71/02 (2006.01) C08L 71/03 (2006.01)

Patent

CA 1246770

CROSS-LINKING COMPOSITION FOR BUTYL RUBBER OR HALOBUTYL RUBBER AND EPIHALOHYDRIN RUBBER BLENDS Abstract of the Disclosure Disclosed are cross-linking compositions having both sul- fur and nonsulfur curative systems which are particularly adapted for cross-linking rubber blends of (a) from about 35% to about 85% halobutyl rubber or a mixture of butyl rubber and halobutyl rubber wherein the halobutyl rubber is at least 50% by weight of the mixture and (b) from about 15% to about 65% of an epihalohydrin rubber, and to the rubber materials cross- linked therewith. The rubber materials cross-linked with these cross-linking compositions have an excellent balance of cure rate, cure state and scorch safety; have improved tire carcass adhesion and good impermeability to gases; and are useful in tire inner tubes and inner liners.

498649

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