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:
Jul. 05, 2016
Filed:
Apr. 13, 2012
Kenneth L. Zack, Wyandotte, MI (US);
Joseph P. Borst, Plymouth, MI (US);
David Durocher, Westland, MI (US);
David E. Przybyla, Southgate, MI (US);
Victor Leung, Madison, NJ (US);
Gunter Decker, Ludwigshafen, DE;
Kenneth L. Zack, Wyandotte, MI (US);
Joseph P. Borst, Plymouth, MI (US);
David Durocher, Westland, MI (US);
David E. Przybyla, Southgate, MI (US);
Victor Leung, Madison, NJ (US);
Gunter Decker, Ludwigshafen, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A method of dissolving and/or inhibiting the deposition of scale on a surface of a system comprises the step of bringing the surface of the system into contact with a composition. The composition can comprise from about 3 to about 15 parts by weight of a chelating component. The chelating component is selected from the group of MGDA, NTA, HEDTA, GLDA, EDTA, DTPA, and mixtures thereof. The composition can further comprise from about 3 to about 15 parts by weight of an acidic component, which is different than the chelating component. The composition can further comprise at least about 60 parts by weight of water. Each of the parts by weight ranges above are based on 100 parts by weight of the composition. The composition may further comprise a surfactant component and/or a corrosion inhibitor.