Patent ID: 7655871

Claim:
A resin composition, capable of being employed for forming a resin layer of a resin-attached metal foil, comprising: a cyanate resin and/or a prepolymer thereof; an epoxy resin substantially containing no halogen atom; a phenoxy resin substantially containing no halogen atom; an imidazole compound; and an inorganic filler, wherein said cyanate resin is present in a range of from 5 to 50% wt. of said resin composition, said epoxy resin is present in a range of from 5 to 50% wt. of said resin composition, said phenoxy resin is present in a range of from 1 to 40% wt. of said resin composition, said imidazole compound is present in a range of from 0.05 to 5% wt. of the combination of the said cyanate resin and said epoxy resin and, said inorganic filler is present in a range of from 20 to 70% wt. of said resin composition.