FLAME-RESISTANT AND LOW DIELECTRIC RESIN COMPOSITION, AND MOLDED PRODUCT, PREPREG AND CIRCUIT BOARD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a flame-retardant and low dielectric resin composition having a low dielectric constant and a dielectric loss in a high frequency region, excellent flame retardance and superior processability such as in sheet forming. SOLUTION: This flame-retardant and low dielectric resin composition comprises a heat-resistant and low dielectric graft copolymer (P-1) having a multiphase structure composed of a nonpolarα-olefin (co)polymer segment and/or a nonpolar conjugated diene (co)polymer segment and an aromatic vinyl (co)polymer, and at least one flame retardant selected from a phosphorus based flame retardant (FR-a) or an inorganic flame retardant (FR-b). When either of the flame retardants is used, the resin composition comprises 0.1-30 parts (mass) of the phosphorus based flame retardant or 0.5-80 parts (mass) of the inorganic flame retardant based on 100 parts (mass) of the graft copolymer. When both flame retardants are used, 0.1-30 parts (mass) of a total amount of the flame retardants are used. A molded product such as a film and a circuit board are provided by using the same. COPYRIGHT: (C)2003,JPO