| 摘要 |
<p>To provide a catalyst composition for production of a flexible or semirigid polyurethane foam excellent in air permeability, and a method for producing a polyurethane foam by using it. A catalyst composition for production of a flexible polyurethane foam, which comprises (A) an amine compound of the following formula (1), and (B) an amine compound of the following formula (2) and/or the following formula (3), wherein the weight ratio of (A)/(B) is within a range of from 95/5 to 5/95:
in the above formula (1), A is an oxygen atom or a nitrogen atom to which one methyl group is bonded, and R 1 is a methyl group or a hydroxyethyl group;
in the above formulae (2) and (3), each of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 and R 7 which are independent of one another, is a hydrogen atom or a C 1-6 saturated or unsaturated hydrocarbon group, R 8 is a hydrogen atom, a methyl group, a methoxy group, a hydroxyl group, an amino group, a monomethylamino group, a monoethylamino group or a dimethylamino group, a is an integer of from 1 to 4, and each of m and n which are independent of each other, is an integer of from 0 to 4, provided that whenone or more substituents selected from R 1 , R 2 and R 5 are not hydrogen atoms, R 8 is an amino group, a monomethylamino group or a monoethylamino group, and any two substituents of from R 1 to R 8 may be optionally bonded via a carbon atom, an oxygen atom or a nitrogen atom to form a hetero ring.</p> |
