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:
Jun. 04, 1991
Filed:
Oct. 17, 1989
Craig A Wilson, Bakerstown, PA (US);
Kurt G Olson, Gibsonia, PA (US);
Jeffrey G Koren, Saxonburg, PA (US);
Debra M Longhini, Pittsburgh, PA (US);
Carol S Dugan, New Kensington, PA (US);
Edward L Jozwiak, Jr, Allison Park, PA (US);
PPG Industries, Inc., Pittsburgh, PA (US);
Abstract
In a method for electrocoating an electrically conductive surface serving as an electrode, which method comprises passing an electrical current between the electrically conductive surface to be electrocoated and a counter electrode in contact with an electrodeposition bath comprising a synthetic resin ionically dispersed in an aqueous medium, wherein improvement comprises (a) adding a complexing agent, and then (b) removing at least a portion of the complexing agent along with metals coordinated therewith from the bath.