Physical properties of polyurethane foams using tertiary amino alkyl amide catalysts
申请人:Air Products and Chemicals, Inc.
公开号:US20040132849A1
公开(公告)日:2004-07-08
The present invention relates to a method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of water as a blowing agent, a cell stabilizer, a gelling catalyst, and a tertiary amino alkyl amide catalyst composition. The catalyst composition is represented by the formula I:
1
wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, A, and n are as defined herein and wherein the tertiary amino alkyl amide catalyst of formula I is acid-blocked.
本发明涉及一种制备聚氨酯泡沫塑料的方法,该方法包括在有水作为发泡剂、泡孔稳定剂、胶凝催化剂和叔氨基烷基酰胺催化剂组合物存在的情况下,使有机多异氰酸酯和多元醇反应。催化剂组合物由式 I 表示:
1
其中 R
1
, R
2
, R
3
, R
4
, R
5
, R
6
、A 和 n 如本文所定义,其中式 I 的叔氨基烷基酰胺催化剂是酸封锁的。