| abstract |
Disclosed is a catalyst composition for production of a flexible or semi-rigid polyurethane foam having excellent air permeability. Also disclosed is a method for producing a polyurethane foam using such a catalyst composition. Specifically disclosed is a catalyst composition for production of a polyurethane foam, which is characterized by containing an amine compound (A) represented by the general formula (1) below and an amine compound (B) represented by the general formula (2) below and/or the general formula (3) below with the weight ratio (A)/(B) being within the range of from 95/5 to 5/95. (1) (In the general formula (1), A represents an oxygen atom or a nitrogen atom to which one methyl group is bonded; and R1 represents a methyl group or a hydroxyethyl group.) (2) (3) (In the general formula (2) and the general formula (3), R1, R2, R3, R4, R5, R6 and R7 independently represent a hydrogen atom or a saturated or unsaturated hydrocarbon group having 1-6 carbon atoms; R8 represents a hydrogen atom, a methyl group, a methoxy group, a hydroxy group, an amino group, a monomethylamino group, a monoethylamino group or a dimethylamino group; a represents an integer of 1-4; and m and n independently represent an integer of 0-4. In this connection, when one or more substituents selected from R1, R2 and R5 are not hydrogen atoms, R8 represents an amino group, a monomethylamino group or a monoethylamino group. In addition, any two substituents of R1-R8 may arbitrarily combine together through a carbon atom, an oxygen atom or a nitrogen atom to form a heterocyclic ring.) |