Patent ID: 8404899

Claim:
A method for producing an aliphatic amine alkylene oxide adduct, comprising: reacting 1 mole of an aliphatic primary amine formed by bonding a saturated or unsaturated hydrocarbon group having 4 to 24 carbon atoms or an alkoxypropyl group represented by R 4 OCH 2 CH 2 CH 2 (wherein R 4 is a saturated hydrocarbon group having 1 to 18 carbon atoms) and hydrogen atoms, with ethylene oxide at an average number of added moles of 1.5 to 2.0 moles in the absence of a catalyst, to obtain an aliphatic amine ethylene oxide adduct (a); and further reacting the aliphatic amine ethylene oxide adduct (a) with 3 to 100 moles of alkylene oxide (b), in the presence of a quaternary ammonium salt added as a catalyst in an amount of 0.01 to 5% by weight, to obtain the aliphatic amine alkylene oxide adduct, wherein the aliphatic amine alkylene oxide adduct is represented by the following Chemical Formula (1), having a color which, as expressed by the Gardner color scale, satisfies the following expression (1) or (2): Gardner color scale≦0.5×( m+n+ 2)−1.5 (1) (provided that when 1≦m+n≦15) Gardner color scale≦6 (2) (provided that when 15<m+n≦100) wherein R 1 is a saturated or unsaturated hydrocarbon group having 4 to 24 carbon atoms, or an alkoxypropyl group represented by R 4 OCH 2 CH 2 CH 2 ; R 4 is a saturated hydrocarbon group having 1 to 18 carbon atoms; A 1 O and A 2 O represent an oxyethylene group and/or an oxypropylene group; and m represents the average number of added moles of (A 1 O), and n represents the average number of added moles of (A 2 O), and m and n are each independently a number from 0 to 50, with 1≦m+n≦100.