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. 22, 2022
Filed:
Mar. 15, 2019
Toray Industries, Inc., Tokyo, JP;
TORAY INDUSTRIES, INC., Tokyo, JP;
Abstract
The present invention provides an alkali-soluble resin with which a cured film having high extensibility, reduced stress, high adhesion to a metal, and high heat resistance can be obtained, and a photosensitive resin composition containing the alkali-soluble resin, and the present invention is an alkali-soluble resin (A) including a structure represented by a general formula (1) wherein Xrepresents a divalent organic group having 2 to 100 carbon atoms, Yand Yeach represent a divalent to hexavalent organic group having 2 to 100 carbon atoms, Xrepresents a tetravalent organic group having 2 to 100 carbon atoms, p and q each represent an integer in a range of 0 to 4, and nand neach represent an integer in a range of 5 to 100,000, wherein (I) and (II) described below are satisfied: (I) an organic group having an aliphatic chain having 8 to 30 carbon atoms is contained as Xof the general formula (1) at a content of 30 to 70 mol % based on 100 mol % of a total of Xand X, and (II) an organic group having a diphenyl ether structure is contained as Yof the general formula (1) at a content of 1 to 30 mol % based on 100 mol % of a total of Yand Y.