PRODUCTION OF PREPREG

摘要

PURPOSE:To produce a prepreg by which a resin solid content is not cured in a varnish to be impregnated in a substrate. CONSTITUTION:This method for producing a prepreg comprises the first impregnation process for impregnating a resin varnish containing an epoxy resin as a component into a glass substrate and subsequently drying the impregnated resin varnish, and the second impregnation process for impregnating a curing varnish containing an epoxy resin-curing agent as a component into the primary prepreg obtained in the first impregnation process and subsequently drying the impregnated curing agent. The method for producing the prepreg also includes the first process for impregnating a curing varnish containing an epoxy resin-curing agent as a component into a glass substrate and subsequently drying the impregnated curing varnish, and the second impregnation process for impregnating a resin varnish containing an epoxy resin capable of being cured with the curing agent as a component into the primary prepreg obtained in the first impregnation process and subsequently drying the impregnated resin varnish.