| abstract |
The present invention is to provide a propylenenpolymer composition capable of producing heat moldednproducts having excellent glance between rigidity andnimpact resistance and to provide heat molded productsnproduced from the composition, such as films and pipes.nThe propylene polymer composition comprises 10 to 90 %nby weight of a propylene polymer (A) and 90 to 10 % bynweight of a propylene polymer (B). The propylenenpolymer (A) has MFR A (measured at 230 °C under a load ofn2.16 kg) of 0.001 to 8 g/10 min, Tm (measured by andifferential scanning calorimeter) of 95 to 145 °C and andensity (d A ) of 885 to 905 kg/m 3 , and in this polymer,nthe content of constituent units derived from an α-olefinnof 4 to 20 carbon atoms is in the range of 1.5 ton11 % by mol. The propylene polymer (B) has MFR B n(measured at 230 °C under a load of 2.16 kg) of 0.1 ton600 g/10 min, Tm (measured by a differential scanningncalorimeter) of 145 to 170 °C, a density (d B ) of 905 ton916 kg/m 3 , and in this polymer, the content ofnconstituent units derived from an α-olefin of 4 to 20ncarbon atoms is in the range of 0 to 2 % by mol. ThenMFR A and the MFR B satisfy the relation 0.1 ≤nlog(MFR B /MFR A ) ≤ 6.1 , and the d A and the d B satisfy thenrelation 2 ≤ d B -d A ≤ 31 . |