| abstract |
PCT No. PCT/JP96/00063 Sec. 371 Date Nov. 1, 1996 Sec. 102(e) Date Nov. 1, 1996 PCT Filed Jan. 18, 1996 PCT Pub. No. WO96/23029 PCT Pub. Date Aug. 1, 1996A propylene resin composition obtained by dynamic heat treatment of a blend of (A) 100 parts by weight of a propylene- alpha -olefin block copolymer wherein a ratio ( eta 1/ eta 2) of melt viscosity eta 1 at a shear rate of 101 sec-1 to melt viscosity eta 2 at a shear rate of 102 sec-1 is 3.5 to 8 as measured by a slit die method and (B)0.005 to 2 parts by weight of an organic peroxide, and having a melt flow rate (measured according to JIS K7210, at a temperature of 230 DEG C. under a load of 2.16 kg) adjusted to 50 to 300 g/10 minutes, a main endothermic peak temperature Tmp of 120 DEG to 150 DEG C. for melting temperature and a main exothermic peak temperature Tcp of 85 DEG to 105 DEG C. for crystallization temperature, as measured with a Differential Scanning Calorimetry, and a Tcp half-value width of 5 DEG C. or above, and a molded article obtained by using the same. |