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. 16, 2010
Filed:
Nov. 22, 2005
Teruhiro Uematsu, Kanagawa, JP;
Naoya Katsumata, Kanagawa, JP;
Teruhiro Uematsu, Kanagawa, JP;
Naoya Katsumata, Kanagawa, JP;
Tokyo Ohka Kogyo Co., Ltd., Kawasaki-shi, JP;
Abstract
A photosensitive resin composition and a photosensitive dry film which are excellent in both sensitivity and stability and are well-balanced in tent strength, resolution and plating non-staining are provided. The photosensitive resin composition comprises an alkali-soluble resin (A), a photopolymerizable compound (B) and a photopolymerization initiator (C), and the polymerization initiator (C) comprises a hexaarylbisimidazole based compound (C1) and a multifunctional thiol compound (C2) as essential components. The photosensitive dry film has at least a photosensitive resin layer formed from the photosensitive resin composition on a support film.