Patent ID: 7189765

Claim:
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, a gelling catalyst, and a tertiary amine amide catalyst composition represented by the formula I: wherein A represents CH or N; R 1 represents hydrogen or n is an integer from 1 to 3; R 2 and R 3 each represent hydrogen or a C 1 –C 6 linear or branched alkyl group; R 4 and R 5 each represent a C 1 –C 6 linear or branched alkyl group when A represents N, or together R 4 and R 5 represent a C 2 –C 5 alkylene group when A represents N; or together R 4 and R 5 may be a C 2 –C 5 alkylene group containing NR 7 when A represents CH or N, where R 7 is selected from the group consisting of hydrogen, a C 1 –C 4 linear or branched alkyl group, and and; R 6 represents a C 5 –C 35 linear or branched alkyl, alkenyl, or aryl group, and where the tertiary amine amide catalyst is acid-blocked with an acid which is formic acid, acetic acid, 2-ethylhexanoic acid, gluconic acid, or N-(2-hydroxyethyl)iminodiacedic acid.