SEMI-CURED BODY, CURED BODY, MULTILAYER BODY, METHOD FOR PRODUCING SEMI-CURED BODY, AND METHOD FOR PRODUCING CURED BODY

摘要

Disclosed is a semi-cured body having a reduced surface roughness in a surface having been subjected to a roughening process.  When a metal layer is formed on the surface of a cured body which is obtained by curing the semi-cured body, the adhesion strength between the cured body and the metal layer is increased because of the semi-cured body.  Also disclosed is a multilayer body using the semi-cured body. A semi-cured body (1) is obtained by roughening a reaction product which is produced by reacting a resin composition containing an epoxy resin, a curing agent and a silica component obtained by surface-treating silica particles having an average particle diameter of not more than 1 µm with a silane coupling agent, so that the gel fraction after 24-hour immersion in methyl ethyl ketone at 23°C is not less than 90%.  A multilayer body comprises a cured body obtained by curing the semi-cured body (1) and a metal layer which is formed by plating on the surface of the cured body.  The adhesion strength between the cured body and the metal layer is not less than 4.9/cm.