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:
Aug. 12, 2014
Filed:
Dec. 11, 2007
Applicants:
Patrick P. B. Notte, Wavre, BE;
Jan H. J. Van Bree, Ottenburg, BE;
Albert Devaux, Mont-Saint-Guibert, BE;
Inventors:
Patrick P. B. Notte, Wavre, BE;
Jan H. J. Van Bree, Ottenburg, BE;
Albert Devaux, Mont-Saint-Guibert, BE;
Assignee:
Italmatch Chemicals SpA, Genoa, IT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F 9/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the manufacture of alkylamino alkylene phosphonic acids is disclosed. In detail, a specific phosphonate is reacted with an agent selected to yield an alkylamino moiety substituted by a radical selected from OH, OR', NH2, NHR′, N(R′), NH, N, S, S—S and SH in aqueous alkaline medium having a pH of 8 or higher at a temperature of 0° C. or higher.