abstract |
The present invention provides a resin composition and the like that can obtain a hardened product that can maintain the balance between adhesion with a conductor layer after an environmental test under a high temperature and high humidity environment, even if a large amount of inorganic filler is used. This resin composition is a resin composition containing (A) an epoxy resin, (B) a benzoxazine compound, and (C) an inorganic filler, wherein the (B) component is represented by the following general formula (B-1), The content of the component (C) refers to a content of 67% by mass or more when the nonvolatile content in the resin composition is 100% by mass. In the formula (B-1), R 1 represents an n-valent group containing an oxygen atom, and R 2 each independently represents a halogen atom, an alkyl group, or an aryl group. n represents an integer from 2 to 4, and m represents an integer from 0 to 4. |