| 摘要 |
A polyimide wherein a tetracarboxylic dianhydride including 3,3',4,4'-biphenyltetracarboxylic dianhydride as the essential component is the starting tetracarboxylic dianhydride component, and an amine comprising between 0.5 and 30 mole percent of a diamine represented by the following general formula is the starting diamine component. (wherein A is a direct bond or a crosslinking group, and R<SUB>1</SUB>-R<SUB>4 </SUB>each represent a substituent). It is possible to obtain a polyimide, a polyimide film and a laminated body with an improved adhesion property and an improved moisture permeation rate, even without surface treatment, comprising, as the essential tetracarboxylic dianhydride, 3,3',4,4'-biphenyltetracarboxylic dianhydride which has conventionally only yielded polyimides with low adhesive strength.
|
