| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a laminated polyester film for coating a metal sheet with a wide part for laminating the metal sheet, with a little material loss and being hardly broken, and in addition, to provide a laminated polyester film-coated metal sheet capable of drawing and wiping at a high speed and a high degree of processing and having excellent can manufacturing properties. <P>SOLUTION: The laminated polyester film for coating the metal sheet has a laminated constitution of a layer A/a layer B, wherein the layer A comprises a crystalline polyester with a melting point of≥180°C, and the layer B comprises a polyester resin composition in which a polyester and an olefin polymer with a functional group of 200-2,000 equivalent/ton and an equivalent sphere-converted diameter of 0.25-2.0μm are mixed by a ratio of 70/30-99/1 wt.%, and a molten resin film of a laminated resin composition of the layer A/the layer B is solidified on a cooling roll with a surface roughness (Ra) of≥0.2μm and <4.0μm, and it is uniaxially drawn in the longitudinal direction to have the surface roughness (Ra) of≤0.1μm and a density of≤1.360 g/cm<SP>3</SP>. In addition, the laminated polyester film-coated metal sheet is obtained by covering the metal sheet with the laminated film. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
