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公开(公告)号:US4291155A
公开(公告)日:1981-09-22
申请号:US20343
申请日:1979-03-14
申请人: Jacques Brochet
发明人: Jacques Brochet
IPC分类号: C08G18/42 , C08G63/664 , C08G63/08 , C08G63/10
CPC分类号: C08G63/664 , C08G18/4269
摘要: The invention concerns a method for the manufacture of polyols, principally utilizable in the synthesis of polyurethanes, which are ester/ether copolymers with hydroxylated terminal groups obtained by the direct copolymerization of a lactone and a vicinal epoxide in the presence of a chain initiator possessing at least two labile hydrogen atoms per mole and of an alkaline catalyst.
摘要翻译: 本发明涉及一种制备主要用于合成聚氨酯的多元醇的方法,所述多元醇是具有羟基化端基的酯/醚共聚物,其通过内酯和邻位环氧化物的直接共聚获得, 每摩尔至少两个不稳定的氢原子和碱性催化剂。