Aromatic triazoles and alkylamine borates for increased surface protection and improved adhesion of brass-coated steel to rubber
AssigneeThe Goodyear Tire & Rubber Company
InventorRobert M. Shemenski, Sr.
Life of this patent
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Abstract
The vulcanized, aged, adhesion of rubber to brass-coated steel cord is improved by the use of benzotriazole (BTA) and cyclohexylamineborate (CHAB). The BTA and CHAB are used alone or in combination. They are added directly to the surface of the cord or to the rubber immediately adjacent to the cord. BTA treatment will reduce surface contamination of the cord. CHAB will aid in improving aged adhesion.
Claims14
A method of improving the adhesion between brass-coated steel tire cord and rubber comprising (A) treating the brass-coated steel tire cord with benzotriazole to form a layer of polymeric complex of benzotriazole and copper over substantially all of the brass surface and (B) vulcanizing a composite of the treated cord and rubber;
- where at least one portion of the benzotriazole is added to the rubber adjacent to the cord.
A method of improving the adhesion between rubber and brass-plated steel cord reinforcement which comprises adding benzotriazole to the rubber adjacent to the cord.
Dependencies are inferred from the claim text.