Integral skin polyurethane

Details Integral skin polyurethane Integral skin polyurethane

1993-08-17

1995-09-19

Seidleck, James J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521125, 521128, C08J 934

Patent

active

054516129

ABSTRACT:
A process and a polymerization mixture for making integral skin polyurethane wherein Component A containing an isocyanate source is combined with Component B containing a polyol source mixture which includes a blowing agent and a polyurethane catalyst. The blowing agent comprises a carbonate source, and optionally water, an alum source and/or an acid source. The mixture is placed in a mold and the mold is closed. The isocyanate source and polyol source react and the carbonate source decomposes to produce carbon dioxide gas to form an integral skin polyurethane in the closed mold.

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