Word: monovinyl
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...ingredient of natural rubber at all. At a chemistry symposium in Rochester, during the winter of 1925, Father Nieuwland read a paper on the formation of divinyl acetylene from acetylene and cuprous ammonium chloride. Du Font's Dr. Elmer K. Bolton was there, suspected that if the monovinyl could be similarly produced, artificial rubber was at hand. Acetylene, from common coke and lime, is cheap...
Father Nieuwland helped the du Pont group under Wallace H. Carothers prepare the monovinyl, suggested catalysts for changing it to chlorobutadiene. Carothers found that after standing ten days in a closed vessel, chlorobutadiene became an elastic mass like rubber. Thus Duprene. Last summer du Pont announced that Duprene automobile tires were satisfactory in every respect (TIME, July...
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