| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayered stretched polypropylene film excellent in transparency, slip properties, blocking resistance, scratch resistance and drop out resistance. SOLUTION: A polypropylene film is formed by laminating a skin layer formed from a polypropylene resin compsn., which is prepared by compounding 0.05-0.5 pts.wt. of three-dimensional calcite type calcium carbonate particle having a vol. mean particle size of 1.5-5μm, a ratio (D90/D10) of a 904 cumulated particle size (D90) and 10% cumulated particle size (D10) of 5.0 or less and containing no particles with a particle size of 10μm or more with 100 pts.wt. of a propylene polymer with an MFR of 1-30 g/10 min, to at least the single surface of a substrate layer formed from a crystalline propylene polymer and stretched at least unidirectionally to obtain a multilayered stretched polypropylene film.
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