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:
Nov. 20, 2007
Filed:
Sep. 19, 2006
Applicants:
Petra Allef, Bonn, DE;
Uwe Begoihn, Essen, DE;
Burghard Grüning, Essen, DE;
Ralf Klein, Velbert, DE;
Jörg Peggau, Essen, DE;
Inventors:
Petra Allef, Bonn, DE;
Uwe Begoihn, Essen, DE;
Burghard Grüning, Essen, DE;
Ralf Klein, Velbert, DE;
Jörg Peggau, Essen, DE;
Assignee:
Goldschmidt GmbH, Essen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C11D 1/90 (2006.01); C11D 1/72 (2006.01); C11D 17/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for preparing highly concentrated flowable and pumpable aqueous solutions of betaines by quaternization of compounds containing tertiary amine nitrogen with ω-halocarboxylic acids by known processes, wherein 0.1 to less than 3% by weight, preferably 0.1 to 1% by weight, based on the end product, of one or more micellar thickeners are added to the reaction mixture before or during the quaternization reaction.