A low crystallizability polypropylene sheet which has an average spherulite radius between 0.1 &mgr;m and 4 &mgr;m, an average number of spherulites of 600/mm2 or less in a sheet cross section, a solid density of 0.895 g/cm3 or less, a fusion enthalpy H of less than 90 J/g at the highest endothermic peak of the differential scanning calorimetry (DSC) curve, a degree of gloss of 90% or higher on at least one side and shows an exothermic peak of 1 J/g or higher at the low temperature side of said highest endothermic peak and a thickness of 50 &mgr;m or more.
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机译：低结晶性聚丙烯片材，其平均球晶半径在0.1μm至4μm之间，且在片材横截面上的平均球晶数为600 / mm 2 或更小，固体密度为0.895 g / cm 3 或更低，在差示扫描量热法（DSC）曲线的最高吸热峰处的熔融焓H小于90 J / g，光泽度为90％或在至少一侧上更高，并且在所述最高吸热峰的低温侧显示出1J / g或更高的放热峰，并且厚度为50μm或更大。
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