Patent ID: 8759989
Filing Date: 2014-06-24
Classification: C08G,C08L,C09J,G03F,H01L

Abstract:
1. A photosensitive adhesive composition comprising (A) an alkali-soluble polyimide having structural unit(s) represented by Formula (1) below and having a structure represented by Formula (2) and/or (3) at at least one end of the main chain, (B) a glycidylamine type epoxy compound represented by Formula (4) or (5) below, (C) a photopolymerizable compound, and (D) a photoinitiator, wherein (A) the alkali-soluble polyimide has a glass transition temperature of 160° C. or higher; wherein in Formula (1) to (3) above, Y represents a monovalent organic group having at least one group selected from the group consisting of carboxyl group, phenolic hydroxyl group, sulfonic group, and thiol group, and Z represents a divalent organic group having at least one group selected from the group consisting of carboxyl group, phenolic hydroxyl group, sulfonic group, and thiol group; R 1 represents a tetra- to tetradeca-valent organic group; R 2 represents a di- to dodeca-valent organic group; R 3 and R 4 independently represent at least one group selected from the group consisting of carboxyl group, phenolic hydroxyl group, sulfonic group, and thiol group; and α and β independently represent an integer from 0 to 10; wherein in Formula (4) to (5) above, R 5 to R 20 may be the same or different from each other and are glycidyl ether group, group represented by Formula (6) below, hydrogen atom, or C 1 -C 5 alkyl group, provided that, in Formula (4), at least one of R 5 to R 10 is glycidyl ether group and at least one is group represented by Formula (6) below, or at least two of R 5 to R 10 are group represented by Formula (6) below; wherein in Formula (5) above, at least one of R 11 to R 15 and at least one of R 16 to R 20 are group represented by Formula (6) below; wherein in Formula (5) above, X represents direct linkage, C 1 -C 6 alkylene group, ether group, thio ether group, sulfonyl group, or arylene group, wherein the alkylene group may be linear or cyclic; wherein in Formula (6) above, R 21 is glycidyl group or C 1 -C 5 alkyl group.