Dupont scientist Elmer K invents neoprene. At DuPont Laboratories in Burlington. Julius Arthur Nieuwland teaches chemistry at Notre Dame University. Newland's research focuses on acetylene chemistry. In his work, he produced divinyl acetylene, which solidified into an elastic compound similar to rubber when passing through jelly-like sulfur dichloride. After DuPont purchased the patent right from the university, Wallace carothers DuPont accepted Niwulan's business development discovery and cooperated with Niwulan. Dupont Company focuses on monovinylacetylene, and studies the production of chloroprene from reaction substances and hydrogen chloride gas.
1937, DuPont invented the first synthetic rubber neoprene. 1957, Bayer introduced fast crystallization chloroprene rubber.