ADHERING CURED POLYMERS OR PREPOLYMERS TO CURED ELASTOMER UTILIZING HYPOCHLOROUS ACID TREATING AGENT

摘要

A process for bonding a cured elastomer (pref. styrene-butadiene rubber or blends of this with natural rubber) to an amine cured polymer prepolymer (pref. polyurethane) is invented. The surface of the elastomer is cleaned with a soln. of hypochlorous acid and then treated with the polymer and an amine curing agent in a polar solvent. The polymer is then cured and thus bonded to the elastomer. The process can be used to repair damaged articles of cured elastomer or to bond together several layers of elastomer using the polymer as a repair or bonding agent. The use of hypochlorous acid produces increased adhesion.