-
1.
公开(公告)号:US6140381A
公开(公告)日:2000-10-31
申请号:US326831
申请日:1999-06-07
CPC分类号: C08G18/242 , C08G18/7664 , C08G18/8019
摘要: This invention relates to a process for the production of a polyurethane backing and air frothed foam on a substrate comprising the steps of a) mixing a polyisocyanate and a polyol blend in the presence of a catalyst to form a reaction mixture, b) applying the reaction mixture to a substrate, and c) curing the reaction mixture to form a polyurethane backing an/or an air frothed foam on the substrate. Suitable catalyst compositions for the present invention include those corresponding to the formula: ##STR1## wherein: each R: independently represents a linear or branched C.sub.1 to C.sub.24 (preferably from 5 to 16 carbon atoms and most preferably from 8 to 12 carbon atoms) alkyl group, or a cyclic group containing from 4 to 24 carbon atoms (preferably from 5 to 16 carbon atoms and most preferably from 8 to 12 carbon atoms).
摘要翻译: 本发明涉及在基材上生产聚氨酯背衬和空气起沫泡沫的方法,包括以下步骤:a)在催化剂存在下混合多异氰酸酯和多元醇共混物以形成反应混合物,b) 混合物到基材中,和c)固化反应混合物以在基材上形成/或空气泡沫的聚氨酯背衬。 适用于本发明的催化剂组合物包括对应于下式的那些:其中:每个R 3独立地表示直链或支链C 1 -C 24(优选5至16个碳原子,最优选8至12个碳原子)烷基,或 含有4至24个碳原子(优选5至16个碳原子,最优选8至12个碳原子)的环状基团。