Japan Polyethylene Corporation

Japan Polypropylene Corporation

Takayoshi Takahashi

Tsutomu Sakuragi

Koji Itagaki

Naoshi Iwama

Masami Kashimoto

Masato Nakano

Toshinori Suzuki

The invention provides a specific metallocene compound and an olefin polymerization catalyst for use for a catalyst for producing an olefin polymer having a sufficiently high molecular weight while maintaining excellent copolymerizability at a polymerization temperature and under polymerization conditions industrially advantageous in polymerization of an olefin such as ethylene or the like, and provides a method for producing an olefin polymer using the catalyst.

Metallocene compound, catalyst for olefin polymer, method for producing olefin polymer, and olefin polymer

Provided are a metallocene complex that facilitates copolymerization of olefin monomers including propylene at a higher uptake rate of comonomers, i.e., ethylene and &#x3b1;-olefin, manufacture of a rubber component having a higher molecular weight, and manufacture of homopolypropylene having a higher melting point through homopolymerization of propylene, compared to traditional metallocene catalysts, and a method of olefin polymerization in the presence of such a metallocene complex. Also provided are, for example, a metallocene complex represented by general formula [I] (e.g., a metallocene complex having a substituent at position 6 of one or each indenyl ring and an optionally substituted furyl or thienyl group at position 2 of one or each indenyl ring), an olefin polymerization catalyst containing the metallocene complex, and a method of olefin polymerization involving olefin polymerization or copolymerization in the presence of the olefin polymerization catalyst.

Metallocene complex and olefin polymerization method

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Kanagawa, Japan

Takayoshi Takahashi