Patent ID: 6649667
Filing Date: 2003-11-18
Classification: C08G,C08J

Abstract:
A RIM process for the production of a rigid, closed-cell polyurethane foam comprising:a) intimately mixing (1) an isocyanate-reactive component comprising: (i) from 0.5 to 30% by weight, based on total weight of isocyanate-reactive component, of a vegetable oil, fish oil or oil derived from animal fat, (ii) from 5 to 80% by weight, based on total weight of isocyanate-reactive component, of an isocyanate-reactive material which is different from (i) having a functionality of at least 1 and a number average molecular weight of from 400 to 10,000, (iii) a chain extender or a crosslinking agent, (iv) water, and (v) a catalyst â€ƒwith (2) an organic polyisocyanate in an amount such that the ratio of NCO to OH groups is from 0.8:1 to 1.3:1 and b) introducing the mixture from a) into a mold.