MONOAXIALLY STRETCHED MOLDED ARTICLE AND METHOD FOR PRODUCING SAME

摘要

The present invention provides a monoaxially stretched molded article comprising a polyolefin-based composition that contains: (a) an olefin-based polymer (A) having a melting point (Tm-D) of greater than 120°C, which is defined as the peak top observed on the highest temperature side of a melting endotherm curve obtained by holding a sample for 5 minutes at a temperature of -10°C in a nitrogen atmosphere and then increasing the temperature by 10°C/minute using a differential scanning calorimeter (DSC); and (b) an olefin-based polymer (B) having a molecular weight distribution (Mw/Mn) of lower than 3.0 and a latent heat of fusion (ΔH-D) of 0-80 J/g, as determined from a melting endotherm curve obtained by holding a sample for 5 minutes at a temperature of -10°C in a nitrogen atmosphere and then increasing the temperature by 10°C/minute using a differential scanning calorimeter (DSC).