公开(公告)号：US06734219B2

公开(公告)日：2004-05-11

申请号：US10304969

申请日：2002-11-27

申请人： Hiroshi Wada ,  Katsuji Kuribayashi ,  Takayuki Sasaki ,  Yuuji Kimura ,  Hisakazu Harada ,  Etsuko Akagi

发明人： Hiroshi Wada ,  Katsuji Kuribayashi ,  Takayuki Sasaki ,  Yuuji Kimura ,  Hisakazu Harada ,  Etsuko Akagi

IPC分类号： C08G1828

CPC分类号： C08G18/4866 ,  C08G18/632

摘要： A method for producing a flexible polyurethane foam in an open state, which comprises reacting a polyol with a polyisocyanate compound in the presence of a catalyst, a blowing agent and a foam stabilizer, wherein as the polyol, a polyol having a hydroxyl value of at most 15 mgKOH/g is used.

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