| abstract |
(Epsilon) at a frequency of 1 to 10 GHz and a low dielectric constant (epsilon) at a frequency of 1 to 10 GHz in a high-frequency region, An insulating film showing dielectric tangent (tan delta), and a resin composition used for producing the insulating film. The composition of the present invention comprises (A) a thermosetting resin having a styrene group at the terminal and a phenylene ether skeleton, (B) a hydrogenated styrenic thermoplastic elastomer, and (C) a polytetrafluoroethylene filler, (C) relative to the total mass of the component (A) to the component (C) in an amount of 40 mass% or more and 80 mass% or less. |