| 摘要 |
The present invention provides a butene-1 polymer film which comprises a composition comprising 100 parts by weight of a butene-1 polymer having a melt index of 0.1-20 g/10 min, a ratio of weight-average molecular weight/number-average molecular weight of 3-12 and having a maximum melting point of 60-140.degree.C measured by differential scanning calorimetric analysis method and 200 parts by weight or less of an olefin polymer and which has a tensile modulus of 500-8,000 kg/cm2, a tear strength in TD or MD of 10 kg/cm or less and a ratio of tear strength in MD and tear strength in TD (MD/TD or TD/MD) of 4 or more. The present invention further provides a laminated film comprising the above butene-1 polymer film and a polyolefin resin layer laminated on at least one surface of the butene-1 polymer film. |
