Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Patent
1994-04-08
1994-12-06
Foelak, Morton
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
502164, 521108, 521128, C08G 1820, B01J 3104, B01J 3100
Patent
active
053710576
ABSTRACT:
A method for producing a modified polyisocyanurate foam by reacting an organic polyisocyanate, polyol and water in the presence of a trimerizing catalyst composed of a certain hydroxyalkyl quaternary ammonium compound, and a carbodiimidizing catalyst composed of a certain phosphorene oxide. The method enables production of low density modified polyisocyanurate foams with ease and rapidly without using volatile blowing agents such as CFC, HCFC, HFC and methylene chloride.
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Morimoto Kiyotake
Nakamura Satoshi
Foelak Morton
Nisshinbo Industries Inc.
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