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. 12, 2004
Filed:
Jun. 26, 2001
Alphonsus V. Pocius, Maplewood, MN (US);
Rita A. Latourelle, Round Rock, TX (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A composition for electrophoretic deposition of an insulating, protective coating. The composition comprises a cationic resin emulsion; and a curative mixed with the cationic resin emulsion. The composition after electrophoretic deposition and curing provides the protective coating that has a concentration of extractable ionic contaminants less than about 200 nanograms/cm ; and a concentration of labile components less than about 36,000 nanograms/cm . A coating composition according to the present invention provides an article in the form of a flexible printed circuit, used as an interconnect, comprising a film substrate and a plurality of conductive traces adjacent to a surface of the film substrate to receive the insulating protective coating using electrophoretic deposition techniques.