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:
Oct. 01, 1991
Filed:
Jun. 10, 1988
Applicant:
Inventor:
Sherman J Sprague, Twinsburg, OH (US);
Assignee:
The Mogul Corporation, Chagrin Falls, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
252180 ; 210699 ; 2523892 ; 25238923 ; 422 15 ;
Abstract
This invention is directed to the treatment of aqueous systems and specifically to the inhibition and removal of scale and solid deposits in industrial water systems. The invention comprises the use of substoichiometric amounts of an inhibitor composition comprising at least one acrylic polymer, at least one water-soluble polymer derived from maleic acid or its anhydride, a water-soluble organic phosphonate and at least one water-soluble chelating agent. This inhibitor composition is added to the water in the systems in amounts ranging from about 0.01 to 600 parts of the inhibitor per million parts by weight of the water.