Patent ID: 8680039
Filing Date: 2014-03-25
Classification: C07C,C11D,D06M

Abstract:
1. A method of preparing an esterquat of Formula 1 in a fabric softener, wherein A and B are each independently CH R the method comprising: performing a first esterification reaction of a fatty acid containing triglyceride oil and a tertiary hydroxyalkylamine in a reactor at a temperature of 110-130° C. under the pressure condition of 50 mmHg or less; performing a second esterification reaction at a temperature of 130-160° C. at a point where 40-60% of the triglyceride oil is converted into a fatty acid hydroxyalkylamine ester; and performing a quaternization reaction by reacting said fatty acid hydroxyalkylamine ester with a quaternizing agent in a solvent to prepare the esterquat of Formula 1 above, wherein said fabric softener includes at least one material selected from the group consisting of glycerin and glycerides represented by formulae 2 to 6 below in an amount of 0.001 to 5 wt. %, and wherein R