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:
Mar. 18, 2014
Filed:
Oct. 25, 2011
Kazunari Ishizuka, Suntou-gun, JP;
Ken Ikegame, Atsugi, JP;
Shoji Shiba, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A process for forming a hydrophilic coating, including (1) forming, on a substrate, coating resin layer including a cationic polymerization resin having an acid-cleavable linkage in its main chain, and a photoacid generator which generates antimonic acid or an acid having a weaker acid strength than that of antimonic acid by irradiation with active energy ray including ultraviolet light; (2) laminating, on the resin layer, a photoacid generator holding layer including a photoacid generator which generates an acid having a stronger acid strength than that of antimonic acid by irradiation with the energy ray, and a holder which holds the photoacid generator and can be removed in step (3); (3) removing the holding layer and curing the resin layer through exposure of those layers to the energy ray to conduct development; and (4) forming a hydrophilic coating by hydrophilizing a surface of the resin layer through heat treatment thereof.