公开(公告)号：DE2525017A1

公开(公告)日：1976-12-16

申请号：DE2525017

申请日：1975-06-05

Applicant: BASF AG

Inventor： FALKENSTEIN GEORG DR ,  FAHRBACH GERHARD DR ,  WULFF HARALD DR

IPC: C08G18/09 ,  C08G18/20 ,  C08G18/46

Abstract: Prodn. of an opt. difficulty inflammable urethane gp. contg. polyisocyanurate froam material by reaction of organic polyisocyanates and polyols in the presence of catalysts and opt. blowing agents, and other additives, there is used a co-catalyst system consisting of: a (a) 1,3,5-tris-(N,N-dialkylaminoalkyl)-s-hexahydrotriazine; and (b) an organic mono- or polycarboxylic acid with 1-14C atoms a half ester of the polycarboxylic acid or a polyesterol with acid no. 4. Pref. 0.5-15 pts. of co-catalyst system is used per 100 pts. of organic polyisocyanate. Pref. the molar ratio of (a):(b) in the catalyst system is from 30:1 to 0.7:1. Using the co-catalyst system the cream-time and rise-time can be varied and the reactivity of the starting material and the mechanical and spatial conditions adjusted.