Patent ID: 8629219

Claim:
An epoxy resin compound comprising: 30-80 parts by weight of epoxy resin; 20-50 parts by weight of polyphenylene ether resin; 0-50 parts by weight of filler; 1-20 parts by weight of ingredient, and the ingredient comprising hardener, promoter, and coupling agent; wherein the polyphenylene ether resin has a number average molecular weight of 1000-5000, and is prepared via the redistribution reaction of polyphenylene ether and phenolic resin with the existing of initiator agent the initiator agent is benzoyl peroxide, or 3,3-5,5-tetramethyl-1,4-diphenoquinone; wherein the redistribution reaction of polyphenylene ether and phenolic resin reacts in toluene or in the mixed solvent of toluene/alcohols; the reaction temperature is controlled to be between 50° C. and 120° C.; wherein in the redistribution reaction of polyphenylene ether and phenolic resin, the dosage of phenolic resin is 10%-17% of the parts by weight of polyphenylene ether; wherein the softening point of the phenolic resin is between 40° C. and 120° C., and the phenolic resin comprises the following structure: wherein, R1 and R2 represent for H or alkane n=8-9; and wherein n=3-4; and wherein the coupling agent is aminosilane, epoxy silane, mercapto-silane, or methacryloyl silane.