| 摘要 |
PROBLEM TO BE SOLVED: To improve the productivity and to realize the cost reduction by providing an adhesive layer at the plastic film side of a flexible one side copper- plated laminated plate. SOLUTION: A roll-like flexible one side copper-plated laminated plate 1 obtained by laminating a plastic film 1c on a copper foil 1a via an adhesive layer 1b is set to the feeding unit of a coating machine. 40 pts.wt. of polyamide resin, 58 pts.wt. of epoxy resin, 1.8 pts.wt. of dicyandiamide and 0.5 pt.wt. of imidazole are dissolved in mixed solvent of methyl ethyl ketone and methanol to obtain adhesive. The polyimide film 1c side of the unrolled plate 1 is continuously coated with the adhesive by an adhesive supply unit 2. Thereafter, it is passed through a drying furnace 3, the solvent content of the adhesive is dried to form the adhesive layer 6d of semi-cured state. Release sheet 4 is continuously laminated on the layer 6d surface while heating and pressurizing the sheet 4 by a laminating roll 5. |
