申请人:AIR PRODUCTS AND CHEMICALS, INC.
公开号:EP0747407A1
公开(公告)日:1996-12-11
A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition comprising at least one compound of either of the following formulas IA and IB:
where R is hydrogen, methyl or hydroxymethyl. The preferred catalysts comprise 3-hydroxymethyl quinuclidine, 3-methyl-3-hydroxymethyl quinuclidine and 4-hydroxymethyl quinuclidine.
一种制备聚氨酯泡沫塑料的方法,包括使有机多异氰酸酯和多元醇在发泡剂、 气泡稳定剂和催化剂组合物的存在下发生反应,催化剂组合物至少包括以下式 IA 和 IB 中的一种化合物:
其中 R 为氢、甲基或羟甲基。优选的催化剂包括 3-羟甲基奎宁环、3-甲基-3-羟甲基奎宁环和 4-羟甲基奎宁环。