申请人:TORAY INDUSTRIES, INC.
公开号:US10990008B2
公开(公告)日:2021-04-27
The present invention provides a resin composition which can result in a cured film which has chemical resistance, low stress property, and high elongation property even by a heat treatment at a low temperature.
The resin composition comprising an alkali-soluble resin (a) which contains a phenol skeleton having a crosslinking group and a phenol skeleton not having a crosslinking group and which has a weight average molecular weight in the range of 1,000 to 50,000, wherein the content ratio of the phenol skeleton having a crosslinking group to the total 100% by mole of structural units of the phenol skeleton having a crosslinking group and the phenol skeleton not having a crosslinking group is in the range of 5 to 90% by mole.
本发明提供了一种树脂组合物,即使在低温下进行热处理,也能形成具有耐化学性、低应力特性和高伸长特性的固化膜。
该树脂组合物包括碱溶性树脂 (a),它含有具有交联基团的苯酚骨架和不具有交联基团的苯酚骨架,其重量平均分子量在 1,000 至 50,000 之间,其中具有交联基团的苯酚骨架与具有交联基团的苯酚骨架和不具有交联基团的苯酚骨架的结构单元总数的 100%(以摩尔计)的含量比在 5 至 90%(以摩尔计)之间。