Title:
オレフィン重合触媒組成物及びその製造方法
Document Type and Number:
Japanese Patent JP2004527636
Kind Code:
A
Abstract:
A method of making a solid procatalyst composition for use in a Ziegler-Natta olefin polymerization catalyst composition, said method comprising: contacting a precursor composition comprising a magnesium compound with a titanium halide compound and an internal electron donor in any order, in a suitable reaction medium to prepare a solid procatalyst composition, separating the solid procatalyst from the reaction medium, extracting the solid procatalyst composition by contacting the same one or more times with a liquid diluent at an elevated temperature for a period of time sufficient to prepare a solid procatalyst composition having a decreased titanium content compared to the titanium content of the solid procatalyst composition before said extraction, and recovering the solid procatalyst composition.
Inventors:
Rinfen Chen
Richard E. Kemp
Thomas El Nemuzek
Richard E. Kemp
Thomas El Nemuzek
Application Number:
JP2003500136A
Publication Date:
September 09, 2004
Filing Date:
February 20, 2002
Export Citation:
Assignee:
Union Carbide Chemicals and Plastics Technology Corporation
International Classes:
C08F4/654; C08F4/658; C08F10/00; (IPC1-7): C08F4/654; C08F10/00
Domestic Patent References:
| JPS6289707A | 1987-04-24 | |||
| JPH0931119A | 1997-02-04 | |||
| JPH11228617A | 1999-08-24 | |||
| JPH10287710A | 1998-10-27 | |||
| JPS58206608A | 1983-12-01 | |||
| JPS6426609A | 1989-01-27 |
Foreign References:
| WO1995031490A1 | 1995-11-23 |
Attorney, Agent or Firm:
Taro Akazawa