| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyimide resin excellent in solvent solubility while having a glass transition temperature over 400°C and a decomposition temperature of a resin over 500°C which have been difficult in the prior art.SOLUTION: There is provided uses of a polyimide resin obtained by an imidation polymerization reaction of a tetracarboxylic acid dianhydride of 3,3',4,4'-diphenylsulfonetetracarboxylic acid dianhydride (A) and 3,3',4,4'-biphenyltetracarboxylic acid dianhydride (B), and fluorene skeleton diamine (C) at a specific molar ratio. |
