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:
Aug. 28, 2001
Filed:
Dec. 03, 1999
Rebecca S. Cochran, Baton Rouge, LA (US);
Patrick C. Hu, Baton Rouge, LA (US);
Michael S. McCaig, Baton Rouge, LA (US);
Edmund F. Perkins, Jr., Baton Rouge, LA (US);
Joe D. Sauer, Baton Rouge, LA (US);
Dustin H. Thomas, Baton Rouge, LA (US);
Albemarle Corporation, Richmond, VA (US);
Abstract
This invention provides a process for producing a betaine/amine oxide mixture. This process comprises reacting, in a liquid medium, an alkali metal &ohgr;-halocarboxylate with a first tertiary amine of the formula R,R,N, wherein each R,group is a hydrocarbyl group which independently has from 1 to about 4 carbon atoms, and wherein the R,group is a hydrocarbyl group which has from about 8 to about 24 carbon atoms, to produce a betaine product solution. To the betaine product solution is added a second tertiary amine of the formula R,R,N, wherein each R,group is a hydrocarbyl group which independently has from 1 to about 4 carbon atoms, and wherein the R,group is a hydrocarbyl group which has from about 8 to about 24 carbon atoms, to produce an amine/betaine mixture. The first and second tertiary amines can be separate portions of the same amine. Preferably, however, the first and second tertiary amines differ from each other. In a carbon dioxide atmosphere, the amine/betaine mixture is mixed with hydrogen peroxide to yield a betaine/amine oxide mixture.