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:
May. 27, 2003
Filed:
Sep. 24, 2001
Applicant:
Inventors:
Assignee:
Asahi Kasei Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01N 3/712 ; A01N 3/744 ; A61K 3/1195 ; C07C / ;
U.S. Cl.
CPC ...
A01N 3/712 ; A01N 3/744 ; A61K 3/1195 ; C07C / ;
Abstract
A process for producing a long chain N-acyl acidic amino acid removes impurities by separating a mixture composed of a long chain N-acyl acidic amino acid containing an inorganic salt and a medium containing water and tertiary butanol into an aqueous layer and an organic layer containing the long chain N-acyl acidic amino acid at a temperature of from 35 to 80° C.
Yamawaki, Yukio. (2003). Process for producing long chain n-acyl acidic amino acid (U.S. Patent No. 6569829). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6569829
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile