Invention Grant
- Patent Title: Method for forming resin cured film pattern, photosensitive resin composition, photosensitive element, method for producing touch panel, and resin cured film
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Application No.: US15459959Application Date: 2017-03-15
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Publication No.: US09964849B2Publication Date: 2018-05-08
- Inventor: Yasuharu Murakami , Hiroshi Yamazaki , Yoshimi Igarashi , Naoki Sasahara , Ikuo Mukai
- Applicant: HITACHI CHEMICAL COMPANY, LTD.
- Applicant Address: JP Tokyo
- Assignee: HITACHI CHEMICAL COMPANY, LTD.
- Current Assignee: HITACHI CHEMICAL COMPANY, LTD.
- Current Assignee Address: JP Tokyo
- Agency: Fitch, Even, Tabin & Flannery, LLP
- Priority: WOPCT/JP2011/078104 20111205
- Main IPC: G03F7/004
- IPC: G03F7/004 ; G03F7/032 ; C08F220/18 ; G03F7/16 ; G03F7/20 ; G03F7/32 ; G03F7/031 ; G06F3/044 ; G06F3/041 ; G03F7/038

Abstract:
The method for forming a resin cured film pattern according to the invention comprises a first step in which there is formed on a base material a photosensitive layer composed of a photosensitive resin composition comprising a binder polymer with a carboxyl group having an acid value of 75 mgKOH/g or greater, a photopolymerizable compound and a photopolymerization initiator, and having a thickness of 10 μm or smaller, a second step in which prescribed sections of the photosensitive layer are cured by irradiation with active light rays, and a third step in which the sections of the photosensitive layer other than the prescribed sections are removed to form a cured film pattern of the prescribed sections of the photosensitive layer, wherein the photosensitive resin composition comprises an oxime ester compound and/or a phosphine oxide compound as the photopolymerization initiator.
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