FLEXIBLE HALOGEN-FREE EPOXY RESIN COMPOSITION, METALLIC FOIL WITH RESIN, COVER-LAY FILM, PREPREG, LAMINATE FOR PRINTED WIRING BOARD, METAL-CLAD FLEXIBLE LAMINATE

摘要

PROBLEM TO BE SOLVED: To provide a flexible halogen-free epoxy resin composition ensuring demanded flame retardancy without using halogen and satisfying adhesiveness, electrical insulation reliability, heat resistance, and flexibility required in application for a flexible printed wiring board and the like. SOLUTION: The flexible halogen-free epoxy resin composition comprises a component A and one or both of components B and C. A mixing total amount of the components B and C is 30-50 mass% based on the total amount of the flexible halogen-free epoxy resin composition. The component A is a naphthalene-skeleton epoxy resin. The component B is a block copolymer type thermoplastic resin and the like consisting of a soft component and a rigid component. The component C consists of a soft thermoplastic resin and the like C1 with Tg of lower than 25°C and a rigid thermoplastic resin and the like C2 with Tg of 25°C or higher. COPYRIGHT: (C)2009,JPO&INPIT