POLYIMIDES, THERMOSETTING RESIN COMPOSITIONS CONTAINING THE POLYIMIDES, FORMED ARTICLES OF THE RESIN COMPOSITIONS, AND PRODUCTION PROCESS OF THE POLYIMIDES

摘要

A polyimide comprises structural units represented by the following formula: wherein Ar is a group consisting of 10-90 mole % of a first specific structural sub-unit and 90-10 mole % of a second particular structural sub-unit. A process for the production of the polyimide and a thermosetting resin composition comprising the polyimide and a particular polymaleimide are also disclosed.