Applications of an azide sulfonyl silane as elastomer crosslinking and coupling agent

A new coupling agent, a silane sulfonyl azide has been synthesized. This agent was capable of reacting with either saturated or unsaturated rubbers. In unsaturated rubbers reinforcement with mineral filler was inproved when compared with a commercial silane coupling agent. For a saturated rubber, the response when this agent was added to the formulation was superior to the response reached using only a conventional peroxide to crosslink the polymer.