| 摘要 |
PROBLEM TO BE SOLVED: To provide a propylene resin molded item which is excellent in trans parency, impact resistance at a low temperature, surface wound resistance, and difficulty of whitening, has a self adhesiveness and a surface smoothness and can be applied preferably to various high tack sheets, a masking sheet, a protective sheet, or the like. SOLUTION: This propylene resin molded item has a n-heptane dissolution of 10-150 ppm measured by a one-side dissolution method (PL test method). The propylene resin molded item is obtained by molding a composition using a propylene resin composition which comprises a crystalline polypropylene and a copolymer of propylene and anα-olefin excluding propylene. The limiting viscosity [η]RC of the copolymer is not more than 6.5 dl/g. The ratio [η]RC/[η]PP, which is the ratio of the limiting viscosity [η]RC of the copolymer to the limiting viscosity [η]PP of the crystalline polypropylene, is 0.6-1.2. The product ([η]RC/[η]PP)×(WRC/WPP), in which WRC and WPP are the weights of the copolymer and the crystalline polypropylene, respectively, is 0.2-4.5.
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