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:
Feb. 28, 1995
Filed:
Jan. 26, 1993
William G Kozak, Hatfield, PA (US);
Joseph C Topping, North Wales, PA (US);
Henkel Corporation, Plymouth Meeting, PA (US);
Abstract
An automated system is disclosed for providing at least periodic removal of metal ions from a chemical complex and contaminants from a chemical bath. The chemical bath is a latex solution containing charged latex particles and having an acidic pH to form a coating by autodeposition, the charged particles tending to coagulate when subjected to a high shear circulation. The system uses an ion exchange column containing an iminodiacetate ion exchange resin for removal of the metal ion contaminants. The chemical bath is passed through the ion exchange column at a low velocity to prevent coagulation of the latex particles. Conductivity measurement devices and controllers are used to automate the operation of the system. Also, additional sensors, such as pressure and level sensors, controllers, filters, circulation pumps and tanks are used for performing rinsing and regeneration of the ion exchange column.