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:
Feb. 10, 1981
Filed:
Nov. 06, 1978
Applicant:
Inventors:
Klaus Sommer, Heidelberg, DE;
Gottfried Schoebel, Ludwigshafen, DE;
Assignee:
Benckiser-Knapsack GmbH, Ladenburg, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C02B / ; D06M / ;
U.S. Cl.
CPC ...
2605025 ; 210700 ; 252-88 ; 252180 ;
Abstract
N-(sulfo alkane) amino alkane phosphonic acids or their water-soluble salts are obtained by reacting an alkali metal salt of an amino alkane phosphonic acid with at least one hydrogen atom in the amino group which can be replaced by a sulfo alkane group, in an alkaline medium with an alkane sultone while heating.