Patent ID: 9309346
Filing Date: 2016-04-12
CPC Classification: C08G,C08J

Claim Text:
1. A method to produce a foamed polyurethane comprising: contacting (a) at least one organic isocyanate compound having an NCO index of about 100 to about 120; (b) at least one polymer polyol having a hydroxyl number of about 28-35; (c) a blowing agent consisting essentially of water, and (d) a catalyst comprising a blowing catalyst comprising N-(2-hydroxyethyl)-N, N′, N″, N′″, N′″ pentamethyltriethylenetetramine and at least one gelling catalyst; and, under conditions sufficient for the catalyst to promote a gelling reaction with the isocyanate and a reaction of water with the isocyanate to release carbon dioxide, and wherein the foamed polyurethane comprises a flexible open celled foam.