Method for producing cold polyurethane foams

Details Method for producing cold polyurethane foams Method for producing cold polyurethane foams

C - Chemistry, Metallurgy

08

G

C08G 18/24 (2006.01) C08J 9/00 (2006.01) C08J 9/04 (2006.01) C08K 5/5419 (2006.01)

Patent

CA 2147191

High resilience polyurethane foams are produced by reacting a mixture of highly reactive polyols having a weight average molecular weight between about 4800 and 6500 g/mole and containing at least 70% primary hydroxyl groups and optionally fillers, polyfunctional isocyanates, amine activators, cross-linking agents, tin catalysts, blowing agents and stabilizers. The inventive stabilizers can be used universally in high resilience slabstock foam systems as well as in high resilience molded foam systems and in formulations based on pure TDI, TDI/MDI mixtures as well as on pure MDI in combination with appropriate polyols.

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