| abstract |
A laminate having a structure in which a heat-resistant resin layer is laminated on both surfaces of a fluororesin layer is stably produced by thermal lamination. A heat-resistant resin film (2) on both sides of a fluororesin film (1) comprising a fluororesin (A) that can be melt molded and has at least one functional group selected from a carbonyl group-containing group, a hydroxyl group, an epoxy group and an isocyanate group , (2) is transferred to the metal roll 33 for heating and the metal roll 32 for thermal lamination while being heated without applying pressure in the thickness direction, and after the preliminary heating process, thermal lamination A method for producing a laminate having a thermal lamination process in which metal rolls (31) and (32) are used for bonding by pressing in the thickness direction while heating at a thermal lamination temperature of not less than the melting point of the fluorinated resin (A) and not more than 420°C. |