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. 01, 2014
Filed:
Mar. 23, 2011
Applicants:
Sébastien Lomel, Saint Just Chaleyssin, FR;
Pascal Pitiot, Lyons, FR;
Thierry Gisbert, Miribel, FR;
Inventors:
Assignee:
Rhodia Operations, Aubervilliers, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 205/00 (2006.01); C07C 229/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a method for continuously preparing a betaine aqueous solution, including the reaction of an amine with an ω-halocarboxylic acid, in the presence of water and a base. Said method is characterized in that it is carried out in a device consisting of at least two consecutive reactors (R1) and (R2), the reactor (R2) being a tubular reactor.