One, introductive 20 centuries 30 time are German the aggregate reaction that discovered ester of different cyanic acid and lively hydrogen compound, initiated polyurethane industry times thereby.

• 一、前言二十世纪30年代德国人发现了异氰酸酯与活泼氢化合物的聚合反应，从而开创了聚氨酯工业时代。