Amine catalyst system for water-blown polyurethane foam

Details Amine catalyst system for water-blown polyurethane foam Amine catalyst system for water-blown polyurethane foam

1991-05-01

1992-11-10

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

C08G 1820

Patent

active

051623862

ABSTRACT:
The present invention relates to an improved essentially closed cell polyurethane foam comprising the reaction product of at least one polyol with at least one isocyanate, in the presence of water to provide a carbon dioxide blowing agent, the improvement comprising said reaction being effected in the presence of a catalyst system consisting essentially of N,N,N',N", N"-pentamethyl-diethylenetriamine and triethylene diamine in order to provide a polyurethane foam characterized by enhanced shrinkage resistance. Also claimed is a process for producing this foam.

REFERENCES:
patent: 4617286 (1986-10-01), Arai et al.
patent: 4910230 (1990-03-01), Tamano et al.
patent: 5039713 (1991-08-01), Petrella
patent: 5057480 (1991-10-01), Petrella

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