Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Propylene homopolymer
 A propylene homopolymer having a high stereo-regularity and an excellent processability during sheet or film formation, characterized in that it exhibits a melt flow rate (MFR) of from 0.1 to 20 g/10 min., a xylene-soluble component content of not more than 6% by weight and an isoblock content [IB] of at least 3 mol % as determined by the following equation (1) from Pmmmr, Pmmrr and Pmrrm, which are absorption intensities attributed to isoblock chain in xylene-insoluble component by .sup.13 C-NMR spectrum: EQU [IB]=[Pmmmr]+[Pmmrr]+[Pmrrm] (1) wherein [Pmmmr], [Pmmrr] and [Pmrrm] are the relative intensity ratio (mol %) of Pmmmr, Pmmrr and Pmrrm, respectively, which are absorption intensities attributed to isoblock chain. 
Toho Titanium Co., Ltd.
C C C C
C08F C08F C08F C08F
inventional inventional inventional inventional
Masayoshi Takuo
Saito Kataoka