申请人:Tosoh Corporation
公开号:EP1273604A1
公开(公告)日:2003-01-08
A method for producing a rigid polyurethane foam, which comprises reacting a polyol with a polyisocyanate in the presence of an amine catalyst and a blowing agent, wherein as the amine catalyst, at least one amine compound having at least one type of substituent selected from the group consisting of a hydroxyl group, a primary amino group and a secondary amino group in its molecule, or N-(2-dimethylaminoethyl)-N'-methylpiperazine, is used, and as the blowing agent, 1,1,1,3,3-pentafluoropropane (HFC-245fa) and/or 1,1,1,3,3-pentafluorobutane (HFC-365mfc) is used.
一种生产硬质聚氨酯泡沫塑料的方法,包括在胺催化剂和发泡剂存在下使多元醇与多异氰酸酯反应,其中作为胺催化剂,至少一种胺化合物在其分子中具有至少一种类型的取代基,该取代基选自由羟基、伯氨基和仲氨基组成的组,或 N-(2-二甲基氨基乙基)-N'-甲基哌嗪、或 N-(2-二甲基氨基乙基)-N'-甲基哌嗪,作为发泡剂,使用 1,1,1,3,3-五氟丙烷(HFC-245fa)和/或 1,1,1,3,3-五氟丁烷(HFC-365mfc)。