Rubber article comprising contiguous portions of an isoprene rub

Details Rubber article comprising contiguous portions of an isoprene rub Rubber article comprising contiguous portions of an isoprene rub

1988-06-13

1989-09-26

Lieberman, Allan M.

Stock material or miscellaneous articles

Composite

Of natural rubber

428515, 525193, B32B 2512, B32B 2514, B32B 2516

Patent

active

048699683

ABSTRACT:
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 the activator in the butadiene polymer rubber composition.

REFERENCES:
patent: 2893971 (1959-07-01), Kennedy et al.
patent: 2984644 (1961-05-01), Wheat
patent: 3993847 (1976-11-01), Kando
V. 6. Epshtein et al--"Low Temperature Copolymers . . . ", Soviet Rubber Technol. 18 (9) 13 (1960).
W. W. Rinne et al--"Effect of 2-Vinylpyridine . . . ", I & E Chem 40 (8) 1437 (1948).

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