CYANATE ESTER RESIN PREPREG, LAMINATE SUBSTRATE, CYANATE ESTER RESIN METAL-CLAD LAMINATE, AND LED MOUNTING SUBSTRATE

摘要

PROBLEM TO BE SOLVED: To provide a prepreg excellent in weatherability, heat resistance, dimensional stability and cost when used as an LED mounting substrate or a mounting substrate for electrical and electronic components or the like.SOLUTION: A cyanate ester resin prepreg comprises a glass cloth and a cyanate ester resin composition impregnated in the glass cloth. The cyanate ester resin composition contains (A) a cyanate ester compound containing one or more cyanate groups in a molecule, (B) a phenolic compound containing one or more phenolic hydroxyl groups in a molecule and (C) an inorganic filler contained in an amount of 1,000 pts.mass or less based on 100 pts.mass of the total of the component (A) and the component (B).