| 摘要 |
PURPOSE:To bond the polyvinyl chloride rigidly, by applying an urethane solution which has good adhesion with the polyvinyl chloride on a primer which is applied on the surface of a polypropylene compound resin, and thereafter performing ejection molding of the flexible polyvinyl chloride. CONSTITUTION:The primer, whose main component is a polymer of an acrylic monomer such as acrylic acid and methacrylic acid, is applied on the surface of the polypropylene compound resin plate 5. Tetrahydrofuran solution of thermoplastic urethane which has good adhesion with the flexible polyvinyl chloride is applied thereon, and a treating surface 6 is formed. Said resin plate 5 is placed in a mold 3 comprising a lower mold 1 and an upper mold 2. The heated and fused flexible polyvinyl chloride 7 is injected into a molding concave part 1A from an injecting molding nozzle 4 through an injecting port 2A in the upper mold 2. Then a molded body is formed on one surface of the resin plate 5, and a molded product 8, wherein the molded body adheres to the resin plate 5, is obtained. |
