Process for production of polyurethane foam

Details Process for production of polyurethane foam Process for production of polyurethane foam

C - Chemistry, Metallurgy

08

G

C08G 18/54 (2006.01) C08G 18/16 (2006.01) C08J 9/08 (2006.01) C08J 9/12 (2006.01)

Patent

CA 2134721

ABSTRACT OF THE DISCLOSURE A process for producing a polyurethane foam, which com- prises reacting a polyol component containing a benzylic ether type phenolic resin having hydroxymethyl groups with an organic polyiso- cyanate component in the presence of an organotin type urethanization catalyst, a tertiary amine type blowing catalyst and water. Said process is free from the problems of the prior art; uses no fluorine-containing halogenated hydrocarbon as a blowing agent; and yet enables in-situ production of polyurethane foam by the use of a spray foaming machine in any season of the year.

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