Trimerization catalysts from sterically hindered salts and tertiary amines having isocyanate reactive groups

The present invention provides trimerization catalyst compositions having a sterically hindered carboxylate salt used in combination with a tertiary amine catalysts having isocyanate reactive groups and methods to produce a polyisocyanurate/-polyurethane foam using such trimerization catalyst compositions. 本发明提供具有与具有异氰酸酯反应性基团的叔胺催化剂结合使用的位阻羧酸盐的三聚催化剂组合物，和使用这样的三聚催化剂组合物生产聚异氰脲酸酯/-聚氨酯泡沫的方法。