Propylene polymer, propylene copolymer, and propylene elastomer prepared using novel bridged indenyl containing metallocenes

A propylene copolymer having such properties that:

• (a) said copolymer contains propylene units in an amount of 95 to 99.5% by mol and ethylene units in an amount of 0.5 to 5% by mol;
• (b) a triad tacticity of three propylene units-chain consisting of head-to-tail bonds, as measured by .sup.13 C-NMR, is 90.0% to 97.3%;
• (c) a proportion of inversely inserted units based on the 2,1-insertion of a propylene monomer in all propylene insertions, as measured by .sup.13 C-NMR, is 0.5 to 1.5%, and a proportion of inversely inserted units based on the 1,3-insertion of a propylene monomer, as measured by .sup.13 C-NMR, is not more than 0.05%;
• and
• (d) an intrinsic viscosity, as measured in decahydronaphthalene at 135.degree. C., is in the range of 1.0 to 12 dl/g.

A propylene elastomer having such properties that:

• (a) said elastomer contains propylene units in an amount of 50 to 95% by mol and ethylene units in an mount of 5 to 50% by mol;
• (b) a trial tacticity of three propylene units-chain consisting of head-to-tail bonds, as measured by .sup.13 C-NMR, is 90.0% to 97.3%;
• (c) a proportion of inversely inserted units based on the 2,1-insertion of a propylene monomer in all propylene insertions, as measured by .sup.13 C-NMR, is 0.5 to 2.0%, and a proportion of inversely inserted units based on the 1,3-insertion of a propylene monomer, as measured by .sup.13 C-NMR, is not more than 0.05%;
• and
• (d) an intrinsic viscosity, as measured in decahydronaphthalene at 135.degree. C., is in the range of 1.0 to 12 dl/g.