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. 04, 2010
Filed:
May. 25, 2004
Chang-woo Lee, Daejeon, KR;
Wan-goo Cho, Daejeon, KR;
Jin-young Hyun, Daejeon, KR;
Kyung-hee OH, Daejeon, KR;
Chang-Woo Lee, Daejeon, KR;
Wan-Goo Cho, Daejeon, KR;
Jin-Young Hyun, Daejeon, KR;
Kyung-Hee Oh, Daejeon, KR;
LG Household & Health Care Ltd., Seoul, KR;
Abstract
A method for preparing an ester bleach activator compound is disclosed. The method includes (A) preparing fatty acid monoester; (B) making chloroformate by reacting the fatty acid monoester with at least one selected from the group consisting of phosgene, diphosgene and triphosgene in the presence of base; and (C) reacting the chloroformate with hydroxybenzene, its derivatives, or its salts in solvent. According to the method, the ester bleach activator compound can be made in a simple and economic way.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile