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:
Mar. 28, 1989
Filed:
Apr. 18, 1988
Applicant:
Inventors:
Kyozo Kitano, Narashino, JP;
Shizuo Sekiguchi, Funabashi, JP;
Assignee:
Lion Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
260400 ;
Abstract
A mixture of a saturated fatty acid ester sulfonate and an unsaturated fatty acid ester sulfonate, which is useful as an active ingredient of a detergent, is prepared at a stroke by sulfonating a mixture of a saturated fatty acid ester and an unsaturated fatty acid ester by using as a sulfonating agent a saturated fatty acid ester having SO.sub.3 adsorbed therein in an amount larger than the equimolar amount, and then neutralizing the sulfonation product.