| 摘要 |
PROBLEM TO BE SOLVED: To provide a readily tearable polyolefinic resin film. SOLUTION: The readily tearable polyolefinic resin film comprises a layer of a polypropylene resin composition composed of a mixture of mainly polypropylene with a copolymer of propylene and anα-olefin other than the propylene and/or polyethylene. The ratio of the polypropylene based on the whole of the resin constituting the layer is≥60 and≤85 wt.% and the average roughness (Ra) of at least one surface is≥0.06 and≤0.25μm and has straight advance tearing properties. Thereby, the film having excellent breaking properties, flexibility to closely adhere to adherends and excellent slipperiness of fingers on the back surface of a pressure-sensitive adhesive tape when used as the pressure-sensitive adhesive tape can be provided. COPYRIGHT: (C)2004,JPO
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