BENZOXAZINE RESIN, BENZOXAZINE RESIN COMPOSITION, CURED PRODUCT THEREOF, VARNISH, PREPREG, AND LAMINATE OR COPPER-CLAD LAMINATE

摘要

The purpose of the present invention is to provide a benzoxazine resin from which there is obtained a cured product having exceptional heat resistance, pyrolysis characteristics, dielectric characteristics, and water absorption characteristics, the cured product being suitable for fiber-reinforced composite materials used in printed wiring boards for electronic devices or in the aerospace field. A benzoxazine resin represented by formula (1). (In formula (1), n is an average value of the number of repetitions, and represents a real number of 1-10. R₁ through R₈ each independently represent a hydrogen atom, a halogen atom, or a C1-8 alkyl or aryl group. When there are more than one of each of R₃ through R₇, each of the R₃ through R₇ may be the same as or different from each other. R₉ and R₁₀ each independently represent a hydrogen atom or a C1-8 alkyl, aryl, allyl, or alkoxy group. When there are more than one of each of R₉ and R₁₀, each of the R₉ and R₁₀ may be the same as or different from each other. The dotted line indicates that a benzene ring is optionally formed.)