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:
Jul. 02, 2002
Filed:
Jan. 23, 2001
Dong-Il Kim, Daejeon, KR;
Jeong-Wook Ha, Daejeon, KR;
Tae-Seong Kim, Daejeon, KR;
Moon-Jeong Rang, Daejeon, KR;
LG Chemical Ltd., Seoul, KR;
Abstract
The present invention relates to a method for preparing a cationic surfactant in which physical chemical characteristics such as softness, antistatic properties, etc. as well as biodegradability are quite excellent due to having an ester group and a hydrophilic hydroxyl group in its molecules. A cationic surfactant of the present invention is prepared by reacting tertiary amine drivatives, fatty acid, and epihalohydrin, and prepared simply by reacting esterification and quaternary reactions in one step with a high yield. The above cationic surfactant is a high grade alkyl quaternary ammonium compound as represented in General Formula (1), wherein R is a C -C alkyl group; R is a C -C linear or branched alkyl or alkenyl group; A is OCOR , NHCOR or OH; R is a C -C linear or branched alkyl or alkenyl group; X is a halogen atom; and n is an integral number from 2 to 6.