The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 28, 2006

Filed:

Aug. 02, 2002
Applicants:

Toshihiro Uwai, Ichihara, JP;

Masato Nakano, Ichihara, JP;

Tsutomu Ushioda, Ichihara, JP;

Masami Kimura, Ichihara, JP;

Tsuyoshi Yahata, Ichihara, JP;

Inventors:

Toshihiro Uwai, Ichihara, JP;

Masato Nakano, Ichihara, JP;

Tsutomu Ushioda, Ichihara, JP;

Masami Kimura, Ichihara, JP;

Tsuyoshi Yahata, Ichihara, JP;

Assignees:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F 17/00 (2006.01); C08F 4/76 (2006.01); C08F 4/52 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides metallocene compounds which exhibit high polymerization activity for production of highly stereoregular polymers, as well as a production process for olefin polymers which employs olefin polymerization catalysts containing the compounds, and olefin polymers obtained by the production process. A metallocene compound of the present invention is represented by the following general formula (1):YKLMX  (1)wherein M represents a titanium atom, zirconium atom or hafnium atom; K and L are fused rings coordinated to M and each independently represents a fused ring of a cyclopentadienyl ring and a 5-membered ring, a fused ring of a cyclopentadienyl ring and a 6-membered ring or a fused ring of a cyclopentadienyl ring and a 7-membered ring; Y is a bridge group crosslinking K and L; and each X is bonded to M; and K and L have a 2-furyl group, substituted 2-furyl group, 2-thienyl group, substituted 2-thienyl group, 2-furfuryl group or substituted 2-furfuryl group on at least one position among each of the 2-positions, 4-positions and 5-positions.


Find Patent Forward Citations

Loading…