| abstract |
Kind Code: A1 A thermosetting resin composition having excellent flame retardancy, heat resistance, and electrical properties, which does not generate harmful products at the time of disposal, and further has no fear of bleeding or contamination of a chemical solution. Providing a composition. (A) an epoxy compound having two or more epoxy groups, (B) a curing agent for the epoxy compound, (C) a phosphorus compound, and an unsaturated epoxy compound having a carbon-carbon double bond and an epoxy group. A thermosetting resin comprising: a first modified phosphorus compound obtained by reacting a compound; and (D) a second modified phosphorus compound obtained by reacting a phosphorus compound with quinone. Composition. [Selection diagram] None |