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:
Mar. 20, 1984
Filed:
Feb. 24, 1982
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
A photosensitive resin composition comprising (a) at least one compound selected from the group consisting of benzotriazole, benzimidazole, benzothiazole, derivatives thereof and salts thereof, (b) a phosphate compound having photopolymeric unsaturated bonds, (c), if necessary, an organic thermoplastic polymer, (d) a photopolymerizable unsaturated compound having at least one terminal ethylene group and (e) a sensitizer and/or a sensitizer system, and a photosensitive element comprising a layer of said photosensitive resin composition and a support film therefor, are provided. The photosensitive resin composition can form a protective coating film with excellent adhesiveness to the substrate surface, and such a protective coating film or, photosensitive element obtained therefrom can be advantageously used as a resist for soldering mask, etc.