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.

Date of Patent:
Nov. 26, 2013

Filed:

Jun. 24, 2009
Applicants:

Joseph P. Miknevich, Coraopolis, PA (US);

David W. Scheimann, Joliet, IL (US);

Inventors:

Joseph P. Miknevich, Coraopolis, PA (US);

David W. Scheimann, Joliet, IL (US);

Assignee:

Nalco Company, Naperville, IL (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 21/01 (2006.01); C02F 1/56 (2006.01); C08L 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

The current invention relates to composition and method for treating impurities in a circulating water system. The circulating water system impurities may be oversprayed paint in paint spray booth applications. The composition includes an aqueous solution of a cationized starch, a polybasic aluminum salt such as aluminum chlorohydrate or polyaluminum chloride and a solution of a medium to high MW aqueous flocculent. The composition is particularly useful when added to recirculating scrubber water in paint spray booths for effectively treating both water based and solvent based paints.


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