Rubber compositions containing polymeric activators

C - Chemistry – Metallurgy – 08 – L

Patent

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400/4906, 400/64

C08L 9/00 (2006.01) C08C 19/20 (2006.01) C08K 3/06 (2006.01) C08L 9/06 (2006.01) C08L 21/00 (2006.01)

Patent

CA 1340352

Butadiene polymer rubber compositions containing a polymeric activator have particularly beneficial characteristics. The activator is an interpolymer of a vinylpyridine monomer and a diene hydrocarbon monomer which interpolymer contains from 20% to 65% by weight of vinylpyridine units. Composite articles made from these rubber compositions together with contiguous portions of a dissimilar rubber compound show greater strength and adhesion as a result of the presence of a activator in the butadiene polymer rubber composition.

602527

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