The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 16, 1999
Filed:
Dec. 12, 1996
Applicant:
Inventors:
Assignee:
Mitsubishi Chemical Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
554163 ; 554165 ; 554168 ;
Abstract
A process for the preparation of a salt of fatty acid ester of hydroxycarboxylic acid, which comprises subjecting a fatty acid ester of lower alcohol and an alkaline metal salt or alkaline earth metal salt of hydroxycarboxylic acid to ester interchange in an organic solvent in the presence of a nonionic or anionic surface active agent and an alkali catalyst. The highly pure salt of fatty acid ester of hydroxycarboxylic acid obtained by the separation and purification of the reaction product exhibits a remarkably excellent surface activating ability as compared with the existing commercial products.