EPOXY RESIN COMPOSITION FOR PRINTED WIRING BOARD, PREPREG FOR PRINTED WIRING BOARD USING THE EPOXY RESIN COMPOSITION FOR PRINTED WIRING BOARD, AND METAL-CLAD LAMINATE FOR PRINTED WIRING BOARD

摘要

PROBLEM TO BE SOLVED: To provide an epoxy resin composition excellent in dielectric characteristics, which can be equipped with high heat resistance while maintaining fire retardancy.SOLUTION: An epoxy resin composition is used which is characterized by containing (A) an epoxy compound having a number average molecular weight of 1000 or less, at least two epoxy groups in one molecule, and no halogen atom, (B) a polyphenylene ether having a number average molecular weight of 5000 or less, (C) a cyanate ester compound, (D) an organometallic salt, and (E) a phosphorus-based flame retardant.