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:
Nov. 07, 2023
Filed:
Nov. 29, 2018
Nipppon Kayaku Kabushiki Kaisha, Tokyo, JP;
Naoko Imaizumi, Tokyo, JP;
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Abstract
A purpose of the present invention is to provide a photosensitive resin composition which retains satisfactory image resolution and gives cured objects reduced in wet-heat dissolution or contamination and having satisfactory wet-heat adhesiveness. The photosensitive resin composition of the present invention comprises: (A) a cationic photopolymerization initiator which comprises a salt of a cation with an anion represented by formula (1) (wherein Rto Reach independently represent a C1alkyl or Caryl group, provided that at least one of Rto Rrepresents a Caryl group); and (B) an epoxy compound. Rto Rmay be each independently either a phenyl group having one or more perfluoroalkyl groups as substituents or a phenyl group having one or more fluorine atoms as substituents. Rto Rmay be each independently a pentafluorophenyl or bis(trifluoromethyl)phenyl group.