abstract |
(57) [Summary] [Structure] A propylene homopolymer and a propylene copolymer which can be produced by an olefin polymerization catalyst containing a transition metal compound represented by the following formula. [Chemical 1] (M is a transition metal, X is a halogen, R 1 is a carbon atom of 2 to 2 6 is a hydrocarbon group, R 2 is an aryl group which may have a substituent, and Y is a divalent silicon-containing group. ) The propylene homopolymer and propylene copolymer, which have a high triad tacticity, a low proportion of positional disorder units, and an intrinsic viscosity within a specific range. [Effect] The propylene homopolymer is excellent in rigidity, heat resistance, transparency, impact resistance and the like. The propylene copolymer is Excellent transparency, impact resistance, heat sealability, etc. |