| abstract |
(57) [Summary] [PROBLEMS] To be excellent in storage stability, can be cured at a low temperature of 180 ° C. or less, and have heat resistance after curing, stress relaxation characteristics, electric corrosion resistance, Provided is a resin composition which gives an excellent cured product having chemical resistance, particularly resistance to a tin plating solution. SOLUTION: 100 parts by weight of a siloxane-modified polyimide resin obtained by polycondensation of an aromatic tetracarboxylic dianhydride, a siloxane diamine and another aromatic diamine component, 1 to 50 parts by weight of an epoxy resin, and the following general formula: Triazine thiol compound represented by (1) 0.1 to 1 A siloxane-modified polyimide resin composition obtained by dissolving 0 parts by weight in an organic solvent. Further, the siloxane-modified polyimide-based resin has an imide moiety formed by polycondensation of an aromatic tetracarboxylic dianhydride and a siloxane diamine, and polyaddition of an aromatic tetracarboxylic dianhydride and another aromatic diamine component. It may be a siloxane-modified polyimide amic acid resin having an amic acid site formed. Embedded image (Wherein R 1 is —SH, —N (C 4 H 9 ) 2 , —HNC 6 Indicates H 5, M represents a hydrogen atom or an alkali metal) |