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:
May. 04, 1976
Filed:
Nov. 28, 1973
Eva Margareta Martinsson, Stenungsund, SW;
Karl Martin Hellsten, Odsmal, SW;
Modokemi Aktiebolag, Stenungsund, SW;
Abstract
Synthetic detergents of the ampholytic betaine type are provided, having a 2-hydroxy propylene ether group attached to the nitrogen atom of the betaine; the 2-hydroxy propylene ether group optionally can include a plurality of oxyalkylene units. The process for preparing these betaines easily and inexpensively involves reaction of an alcohol or hydroxy compound with epichlorohydrin to form the corresponding chloroglyceryl ether, which can be aminated and quaternized either in two stages, by reaction of a dialkyl amine and a straight or branched halogenated carboxylic acid, or in one stage by reaction of an amino acid. Detergent compositions containing these betaines are also provided.