| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a laminated film suitable as a surface protective film, excellent in blocking resistance, having no pollution problem due to dust in air and preventing the transfer of a pressure-sensitive adhesive to the surface of an adherend when the surface protective film is peeled after use, and the surface protective film for a liquid crystal display. SOLUTION: In the manufacturing method of the laminated film wherein a pressure-sensitive adhesive layer is arranged between a peel layer and a base material layer, a polyamide resin, a polycarbonate resin, a polyester resin or a mixture of them is used in the peel layer and a polyolefin resin is used in the base material layer while a hydrogenated material of a random copolymer comprising styrene and a diene-based hydrocarbon, a mixture thereof or an ethylene/vinyl acetate copolymer mixture is used in the pressure-sensitive adhesive layer. The resins of the respective layers are together extruded into a cylindrical shape by a multilayered coextrusion circular die before cooled. COPYRIGHT: (C)2005,JPO&NCIPI |
