Document Type and Number:
Japanese Patent JPS5176393
Kind Code:
A
Abstract:
Rigid cellular foams characterized by carbodiimide linkages are prepared by the catalytic condensation of an organic polyisocyanate in the presence of a catalytically sufficient amount of a carbodiimide catalyst and an exotherm generating reactant which is either (a) an oxazolidine or (b) an enamine. The foams hereof are characterized by excellent flame retardancy, weight retention and low friability.
Inventors:
PIITAA TAIIYUEN KAN
MOOZESU SENKAA
MOOZESU SENKAA
Application Number:
JP11569775A
Publication Date:
July 01, 1976
Filing Date:
September 26, 1975
Export Citation:
Assignee:
BASF WYANDOTTE CORP
International Classes:
C08G18/00; C08G18/02; (IPC1-7): C08G18/00