2 to 40 parts by weight per 100 parts of the epoxy resin composition.Laminated plateFor use in producing a laminated plate, the epoxy resin composition containing the curing agent is generally formed into a varnish by using a solvent, for example, an aromatic hydrocarbon such as toluene or xylene or a ketone such as acetone,methyl ethyl ketone or methyl isobutyl ketone.