Adhesive composition and method for adhering textiles to EPDM rubber
AssigneeDayco Products, Inc.
InventorDaniel A. Pelton
Life of this patent
Estimating the term…
Abstract
An improved adhesive composition and method for adhering textile reinforcing elements to rubber, particularly ethylene-propylene-diene rubber in the manufacture of rubber articles such as power transmission belts, wherein the adhesive composition comprises a latex of a hydrogenated styrene-butadiene rubber, a carboxylated hydrogenated styrene-butadiene rubber, a hyddogenated nitrile-butadiene rubber, a carboxylated hydrogenated nitrile-butadiene rubber, a chlorosulfonated polyethylene or blends thereof; an aqueous solution of a half-ester of maleinized liquid poybutadiene; and, optionally, up to about 15% by weight carbon black in an aqueous solution.
Claims12
A method for improving the adhesion of a textile reinforcing element to an ethylene-propylene-diene rubber compound comprising the steps of:
- (a) applying an adhesive to said textile reinforcing element, said adhesive comprising:
- (i) a latex of at least one of a hydrogenated styrene-butadiene rubber, a carboxylated hydrogenated styrene-butadiene rubber, a hydrogenated nitrile-butadiene rubber, a carboxylated hydrogenated nitrile-butadiene rubber and chlorosulfonated polyethylene;
- and;
- (ii) an aqueous solution of an isobutyl half-ester of maleinized liquid polybutadiene resin, with the proviso that said adhesive does not contain resorcinol-formaldehyde resin;
- (b) drying the adhesive-containing textile reinforcing element;
- (c) heat setting the dried adhesive-containing textile reinforcing element;
- (d) incorporating the heat set textile reinforcing element into an ethylene-diene rubber compound;
- (e) forming a reinforced ethylene-propylene-diene rubber article from said ethylene-propylene-diene rubber compound;
- and
- (f) curing said reinforced ethylene-propylene-diene rubber article.
Dependencies are inferred from the claim text.