Patent ID: 6762211
Filing Date: 2004-07-13
Classification: C08G

Abstract:
A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of water as a blowing agent, a cell stabilizer, and a catalyst composition represented by the formula I: wherein A represents CH or N;R1 represents hydrogen or n is an integer from 1 to 3; R2 and R3 each represent hydrogen or a C1-C6 linear or branched alkyl group; R4 and R5 each represent a C1-C6 linear or branched alkyl group when A represents N, or together R4 and R5 represent a C2-C5 alkylene group when A represents N; or together R4 and R5 represents a C2-C5 alkylene group containing NR7 when A represents CH or N, where R7 is selected from the group consisting of hydrogen, a C1-C4 linear or branched alkyl group, and and; R6 represents a C5-C35 linear or branched alkyl, alkenyl, or aryl group.