CONTINUOUS PRODUCTION OF EPOXY-BASED RESIN SHEET

摘要

PROBLEM TO BE SOLVED: To provide a method for continuously producing an epoxy-based resin sheet having excellent heat resistance stably in excellent mass productivity. SOLUTION: A coating solution comprising at least an alicyclic epoxy-based resin and 1.1 to 1.4 equivalents of a curing agent as components is cast 71 in a sheetlike state directly or through a different superimposed layer 6 to a readily peelable resin layer 5 formed on a continuous substrate 1. The cast layer 72 is heated and cured 4 to form a cured sheet 7 stuck directly or through the different superimposed layer to the resin layer. The cured sheet is peeled and recovered together with the resin layer from the continuous substrate. Consequently the occurrence of low crosslinked part can be prevented by making up for the deficiency of the curing agent by evaporation, the heating and curing treatment can be carried out at the boiling point of the curing agent or higher than it and a highly heat-resistant cured sheet is readily peeled and recovered through the resin layer from the continuous substrate. An epoxy-based resin sheet can be stably and efficiently obtained.