Abstract: In the manufacture of prepreg using various types of resin varnish having different properties, prepreg having good appearance and desired properties is manufactured without decreasing productivity. A prepreg manufacturing apparatus is able to perform, in a base material feeding path, immersing a base material in resin varnish in a tray, scraping off the excess resin varnish on the base material with scraping rollers which are provided above the tray, and thereafter drying the base material with a drying device. The prepreg manufacturing apparatus is configured such that, on the base material feeding path, the distance from the liquid surface of the resin varnish in the tray to the scraping rollers and the distance from the scraping rollers to the drying device are adjustable.

Abstract: A method for manufacturing a metal foil-clad laminate in which the occurrence of voids and unevenness is suppressed compared with conventional ones even when a prepreg obtained from a curable resin composition containing a relatively large amount of an inorganic filler is used. A laminate and a metal foil-clad laminate has excellent moldability, a low thermal expansion coefficient, and high glass transition temperature and is excellent in the peel strength of the metal foil. A method comprises disposing one or more prepregs between metal foils so that the one or more prepregs are in contact with metal surfaces, and heating and pressurizing the one or more prepregs and the metal foils in a vacuum atmosphere to laminate the prepregs and the metal foils to obtain a metal foil-clad laminate; and further subjecting the metal foil-clad laminate to heating and pressurization treatment in a vacuum atmosphere.