COMPOSITE DIELECTRIC MATERIAL, COMPOSITE DIELECTRIC SUBSTRATE, PREPREG, COMPOSITE MAGNETIC SUBSTRATE, SUBSTRATE, METALLIC FOIL COATED PRODUCT, FLAME-RETARDED SUBSTRATE, POLYVINYLBENZYL ETHER RESIN COMPOSITION, METHOD FOR PRODUCING CURABLE POLYVINYLBENZYL ETHER RESIN COMPOSITION, CURABLE POLYVINYLBENZYL ETHER RESIN COMPOSITION, AND RAW MATERIAL OF COMPOSITE DIELECTRIC MATERIAL

摘要

PURPOSE: A composite dielectric material which has a high dielectric constant and is useful for electronic parts necessitating such a high dielectric constant, such as a circuit board having built-in capacitor, a composite part and a capacitor, as well as the use of the composite dielectric material are provided. CONSTITUTION: The composite dielectric material contains ceramic particles dispersed therein. The resin is derived from a polyvinylbenzyl ether compound of formula(1), the ceramic is at least one of ceramic powder based on composition selected from a group consisting of at least from BaTiO3, (Ba, Pb)TiO3, Ba(Ti, Zr)O3 and (Ba, Sr)TiO3 ceramics. The content of the ceramic powder is 30 vol% to 70 vol% based on the total of the polyvinylbenzyl ether compound and the ceramic powder. The composite dielectric material can be used for preparing substrate, prepreg, composite magnetic substrate, metallic foil coated product, flame-retarded substrate, and etc.