| 摘要 |
PURPOSE:To improve initial adhesive strength, adhesive strength against water, and resistance against plasticizer by laminating plastic film layers on a metallic layer, laminating a specific adhesive layer over them, and further laminating over them a hot melt layer. CONSTITUTION:Over a metallic layer 21 are laminated in succession a plastic film layer 22, an adhesive layer 23 consisting of polyester polyurethane based resin obtained by the reaction between polyester polyol of molecular weight 2000-100000 and polyfunctional isocyanate having more than one isocyanate radicals in a molecule, and a hot melt layer 24 made of vinyl chloride urethane copolymer resin of urethane to vinyl chloride ratio range 0.05-2.0. This improves initial adhesive strength, adhesive strength against water, and resistance against plasticizer. |
