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2. 发明授权

US5437822A Method for producing a skin-formed polyurethane foam molded product 失效
标题翻译：用于生产表皮形成的聚氨酯泡沫模制产品的方法
公开(公告)号：US5437822A
公开(公告)日：1995-08-01
申请号：US9096
申请日：1993-01-26
申请人： Hiroshi Wada , Hisakazu Harada , Shoji Hayashida
发明人： Hiroshi Wada , Hisakazu Harada , Shoji Hayashida
IPC分类号： C08G18/40 , C08G18/48 , C08G18/63 , C08G18/66 , B29C44/06
CPC分类号： C08G18/4804 , C08G18/409 , C08G18/4841 , C08G18/4866 , C08G18/632 , C08G18/667 , C08G2101/0033
摘要： A method for producing a skin-formed polyurethane foam molded product, which comprises reacting a high molecular weight active hydrogen compound containing at least 80% by weight of a polyoxyalkylene polyol having from 2 to 8 hydroxyl groups and a hydroxyl value of from 3 to 60 (mgKOH/g) and consisting essentially of from 20 to 100% by weight of the following component (a) and from 0 to 80% by weight of the following component (b), a chain extender and a polyisocyanate compound in a closed molding tool in the presence of a catalyst and a blowing agent comprising as the main component, at least one member selected from the group consisting of water, a heat decomposable blowing agent capable of generating a gas upon heat decomposition and an inert gas:(a) a polyoxyalkytene polyol having from 2 to 8 hydroxyl groups and a hydroxyl value X (mgKOH/g) of 3.ltoreq.X.ltoreq.60, provided that when 3.ltoreq.X.ltoreq.32.5, the total unsaturated degree Y(meq/g) is Y.ltoreq.0.04, and when 32.5.ltoreq.X.ltoreq.60, X and Y satisfy the relation of the following formula (I):Y.ltoreq.0.9/(X-10) (1)or a polymer-dispersed polyol having such a polyoxyalkylene polyol as matrix,(b) a polyoxyalkylene polyol other than the above component (a), or a polymer-dispersed polyol having such polyoxyalkylene polyol as matrix.
摘要翻译：一种皮肤形成的聚氨酯发泡成型体的制造方法，其特征在于，使含有至少80重量％的含有2〜8个羟基的聚氧化烯多羟基和羟基值为3〜60的高分子量活性氢化合物（mgKOH / g），并且基本上由以下组分（a）的20至100重量％和以下组分（b）的0至80重量％，闭合模塑中的扩链剂和多异氰酸酯化合物在催化剂和发泡剂存在下的工具，其包含作为主要成分的至少一种选自水，能够在热分解时产生气体的热分解发泡剂和惰性气体中的至少一种：（a）具有2至8个羟基并且羟值X（mgKOH / g）为3≤X≤60的聚氧化亚烷基多元醇，条件是当3≤X≤32.5时，总不饱和度Y（ meq / g）为Y <= 0.04，当32.5

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