申请人:BASF Corporation
公开号:EP0297519A1
公开(公告)日:1989-01-04
The integral skin polyurethane steering wheel is prepared by reacting (a) a mixture of a graft polymer dispersion in a polyol or a polyol mixture (b) an organic polyisocyanate selected from the group consisting of an isocyanate prepolymer prepared by reacting 4,4′-diphenylmethane diisocyanate with a mixture of dipropylene glycol and a polyoxypropylene glycol having a molecular weight of about 420, a polymeric polymethylene polyphenylene polyisocyanate containing about 55 weight percent diphenylmethane diisocyanate, a 1:1 mixture of 2,4′- and 4,4′-diphenylmethane diisocyanate and mixtures thereof, (c) a blowing agent, (d) a chain extender, and (e) a catalyst, surfactant and optionally flame retardants, fillers U.V. absorbers and other additives.
整体蒙皮聚氨酯方向盘是通过以下反应制备的:(a) 接枝聚合物分散在多元醇或多元醇混合物中的混合物;(b) 有机多异氰酸酯,该有机多异氰酸酯选自以下组别:由 4、4′-diphenylmethane diisocyanate with a mixture of dipropylene glycol and a polyoxypropylene glycol having a molecular weight of about 420, a polymeric polymethylene polyphenylene polyisocyanate containing about 55 weight percent diphenylmethane diisocyanate, a 1:2,4′- 和 4,4′- 二苯基甲烷二异氰酸酯的 1:1 混合物及其混合物,(c) 发泡剂,(d) 扩链剂,(e) 催化剂,表面活性剂和可选的阻燃剂,填料 U. V. 吸收剂和其他添加剂。V. 吸收剂和其他添加剂。