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:
Oct. 29, 1996
Filed:
Jul. 25, 1995
Applicant:
Inventors:
Guenter Uphues, Monheim, DE;
Uwe Ploog, Haan, DE;
Renate Schick, Haan, DE;
Hans-Juergen Schwark, Monheim, DE;
Sandra Witt, Langenfeld, DE;
Assignee:
Henkel Kommanditgesellschaft auf Aktien, Duesseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C11D / ;
U.S. Cl.
CPC ...
5483521 ; 252356 ; 252357 ; 510237 ; 510480 ; 510490 ; 510535 ;
Abstract
In order to prepare fluid, storage-stable ampholytic surface-active agents, (a) 1-hydroxyethyl-2-alkyl-2-imidazolines having formula (1), in which R.sup.1 stands for an alkyl residue with 5 to 21 carbon atoms, are quaternated or carboxymethylated with halogenated carboxylic acid salts at a pH range from 7.5 to 9, and at the same time hydrolyzed with aqueous bases, then (b) the pH value of the reaction final products is set between 5 and 7. ##STR1##