NEW QUATERNARY AMMONIUM SALT AND ITS PRODUCTION

摘要

PURPOSE: To obtain a new quaternary ammonium salt capable of applymng excellent softness to fibers and excellent softness and smoothness to the hair, having excellent biodegradability and useful as a fiber-softening base and useful for a hair cosmetic free from environmental pollution. CONSTITUTION: This compound is expressed by formula I [R<1> , R<2> and R<3> are each a 1-4C (hydroxy)alkyl; R<4> and R<5> are each an (OH-substituted)7-35C (branched)alkyl or an alkenyl; A is a 2-3C (branched)alkylene; X is an anion; (m) is an average addition molar number of alkylene oxide and is 0-20; (n) is 1-6], e.g. (di-heptadecylmethoxycarbonyl)methyl trimethyl ammonium chloride. The compound of formula I can be produced by reacting a compound of formula II with a compound of the formula Y-(CH2 $)n -COOR6 (R5 is H or a 1-4C alkyl; Y is a halogen) and reacting the resultant compound of formula III with a compound of the formula NR1 R2 R3 .