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. 05, 2017
Filed:
Sep. 30, 2011
Yoshihide Sekito, Shiga, JP;
Tomohiro Koda, Shiga, JP;
Tetsuya Kogiso, Shiga, JP;
Masayoshi Kido, Shiga, JP;
Yoshihide Sekito, Shiga, JP;
Tomohiro Koda, Shiga, JP;
Tetsuya Kogiso, Shiga, JP;
Masayoshi Kido, Shiga, JP;
KANEKA CORPORATION, Osaka, JP;
Abstract
In order to provide (A) a photosensitive resin composition which (i) obtains an excellent tack-free property after being applied and dried, (ii) can be subjected to fine processing so as to have photosensitivity, (iii) prepares a cured film having excellent flexibility, flame retardancy, and electrical insulation reliability, and (iv) has small warpage after being cured, (B) a resin film, (C) an insulating film, and (D) an printed wiring board provided with an insulating film, the photosensitive resin composition containing at least (A) binder polymer; (B) cross-linked polymer particles, whose polymer has a urethane bond in its molecule; (C) thermosetting resin; and (D) photo-polymerization initiator is used.