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:
Dec. 29, 2015
Filed:
Jul. 26, 2012
Misato Oonishi, Tokyo, JP;
Shinya Inagaki, Tokyo, JP;
Naoko Imaizumi, Tokyo, JP;
Nao Honda, Tokyo, JP;
Misato Oonishi, Tokyo, JP;
Shinya Inagaki, Tokyo, JP;
Naoko Imaizumi, Tokyo, JP;
Nao Honda, Tokyo, JP;
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Abstract
An alkali-developing-type photosensitive resin composition comprising: a polycarboxylic acid resin (A) obtained by reacting a polybasic anhydride (c) with a reactant (ab) between a difunctional bisphenol epoxy resin (a) having an epoxy group at both terminals and an epoxy equivalent of 600-1300 g/eq., and a monocarboxylic acid compound (b) having an alcoholic hydroxyl group; an epoxy resin (B) having two or more epoxy groups in a molecule; and a photoacid generator (C), wherein the addition ratio the monocarboxylic acid compound (b) with respect to 1 equivalent of the epoxy group of the epoxy resin (a) is 80 equivalent % or more, and the addition ratio the polybasic anhydride with respect to one equivalent of the primary hydroxyl group of the reactant (ab) is 80 equivalent % or more.