发明授权
- 专利标题： Process for the manufacture of polyisocyanurate foams
- 专利标题（中）： 制备聚异氰尿酸酯的方法
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申请号： US693502申请日： 1976-06-07
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公开(公告)号： US4066580A公开(公告)日： 1978-01-03
- 发明人: Georg Falkenstein , Gerhard Fahrbach , Harald Wulff
- 申请人： Georg Falkenstein , Gerhard Fahrbach , Harald Wulff
- 申请人地址： MI Wyandotte
- 专利权人： BASF Wyandotte Corporation
- 当前专利权人： BASF Wyandotte Corporation
- 当前专利权人地址： MI Wyandotte
- 主分类号： C08G18/20
- IPC分类号： C08G18/20 ; C08G18/42 ; C08G18/46
摘要：
A process for the manufacture of urethane group containing polyisocyanurate foams produced by mixing polyisocyanates and polyols and (if required) frothing agents, auxiliaries and additives in the presence of a co-catalyst system which consists of a 1,3,5-tris(N,N-dialkylaminoalkyl)-s-hexahydrotriazine and an organic mono- or polycarboxylic acid, a polyesterol with an acid number greater than 4 or a mono-ester of polycarboxylic acid.