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1. 发明授权

US5633292A Method for producing cold polyurethane foams 失效
标题翻译：生产冷聚氨酯泡沫的方法
公开(公告)号：US5633292A
公开(公告)日：1997-05-27
申请号：US568888
申请日：1995-12-07
申请人： Anette Brune , Georg Burkhart , Volker Zellmer
发明人： Anette Brune , Georg Burkhart , Volker Zellmer
IPC分类号： C08J9/00 , C08G18/24 , C08G18/61
CPC分类号： C08J9/0061 , C08J2375/04 , C08J2483/00
摘要： The invention relates to a method for the production of high resilience polyurethane foams by reacting a mixture of highly reactive polyols, which usually have an average molecular weight of between about 4800 and 6500 g/mole and at least 70% primary hydroxyl groups and optionally contain fillers, polyfunctional isocyanates, amine activators, cross-linking agents, tin catalysts, blowing agents and stabilizers, compounds of the general formula ##STR1## being used as stabilizers, in which R.sup.1 is the same or different in the average molecule and represents a methyl group or a group of the general formula --CH.sub.2 --CH.sub.2 --(CH.sub.2).sub.a --C.sub.6 H.sub.3 (R.sup.2).sub.2 (a=0 or 1; R.sup.2 =--O--CH.sub.3), with the proviso that at least one R.sup.1 group is a group having the formula --CH.sub.2 --CH.sub.2 --(CH.sub.2)a--C.sub.6 H.sub.3 (R.sup.2).sub.2n has an average numerical value of 2 to 11,m has an average numerical value of 1 to 6,with the proviso that the quotient p=(n+m+2)/m is 1.66 to 12.
摘要翻译：本发明涉及通过使通常具有约4800至6500g / mol平均分子量和至少70％伯羟基的高反应性多元醇的混合物反应生产高回弹性聚氨酯泡沫的方法，并且任选地含有填料，多官能异氰酸酯，胺活化剂，交联剂，锡催化剂，发泡剂和稳定剂，用作稳定剂的通式为“IMAGE”的化合物，其中R 1在平均分子中相同或不同，基团或通式-CH 2 -CH 2 - （CH 2）a -C 6 H 3（R 2）2（a = 0或1; R 2 = -O-CH 3）的基团，条件是至少一个R 1基团是基团具有式-CH 2 -CH 2 - （CH 2）a -C 6 H 3（R 2）2 n的平均数值为2至11，m的平均数值为1至6，条件是商p =（n + m + 2）/ m为1.66〜12。

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