Adhesion of rubber to aramid cords

Details Adhesion of rubber to aramid cords Adhesion of rubber to aramid cords

C - Chemistry, Metallurgy

08

L

18/949

C08L 63/00 (2006.01) C08J 5/06 (2006.01)

Patent

CA 1273770

Abstract Of The Disclosure An aqueous composition comprising an alkaline rubbery vinyl pyridine latex, a water dispersible or soluble epoxide and a polyfunctional amine can be used to treat a polyamide reinforcing element, e.g. a poly(p-phenylene terephthalamide) cord, to increase the adhesion of the cord to rubber. Further improvements in adhesion can be obtained if the cord before treatment with the aqueous composition is exposed to a cold gas plasma of air, N2, He, Ne or Ar or mixture thereof at up to about 300 watts of power for a few seconds to several minutes to improve its adhesion to rubber.

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