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. 18, 2015
Filed:
Jun. 05, 2013
Applicant:
Italmatch Chemicals Spa, Genoa, IT;
Inventors:
Patrick P. B. Notte, Wavre, BE;
Albert Devaux, Mont-Saint-Guibert, BE;
Jan H. J. Van Bree, Ottenburg, BE;
Tessa Johnson, Sint Amandsberg, BE;
Assignee:
ITALMATCH CHEMICALS SPA, Genoa, IT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02F 5/10 (2006.01); C02F 5/12 (2006.01); C02F 5/14 (2006.01); C07F 9/38 (2006.01); C09K 8/528 (2006.01); C02F 103/10 (2006.01);
U.S. Cl.
CPC ...
C02F 5/10 (2013.01); C02F 5/12 (2013.01); C02F 5/14 (2013.01); C07F 9/3808 (2013.01); C09K 8/528 (2013.01); C02F 2103/10 (2013.01); C02F 2209/06 (2013.01);
Abstract
A method is disclosed to inhibit scale formation in aqueous systems whereby a threshold amount of a scale inhibiting agent, represented by an aminoacid alkylphosphonic acid, is added to the aqueous system. The aminoacid moiety can be represented by α-species or by species having, at least, two or more carbon atoms between the carboxylic moiety and the amine group. These aminoacid based inhibitors exhibit unusually superior performance and system acceptability compared to leading state-of-the-art inhibitors.