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Title:
METHOD FOR PRODUCING SOLID CATALYST COMPONENT FOR OLEFIN POLYMERIZATION, OLEFIN POLYMERIZATION CATALYST, METHOD FOR PRODUCING OLEFIN POLYMERIZATION CATALYST, AND METHOD FOR PRODUCING OLEFIN POLYMER
Document Type and Number:
WIPO Patent Application WO/2019/124021
Kind Code:
A1
Abstract:
A method for producing a solid catalyst component includes bringing a magnesium compound, a titanium halide compound, and one or more internal electron donor compounds into contact with each other to effect a reaction; washing the resulting product with a first inert organic wash solvent that does not have reactivity with the titanium halide compound, and has a solubility parameter (SP) of 8.0 to 9.0;washing the resulting intermediate product one or more times in the absence of the titanium halide compound with a second inert organic wash solvent that includes a hydrocarbon compound and does not have a reactivity with the titanium halide compound, but has a solubility parameter (SP) of more than 9.0; and washing the resulting product in the absence of the titanium halide compound with a third inert organic wash solvent that does not have reactivity with the titanium halide compound, and has a solubility parameter (SP) of less than 8.0.

Inventors:
HOSAKA MOTOKI (JP)
SUGANO TOSHIHIKO (JP)
UZAWA TSUTOMU (JP)
Application Number:
PCT/JP2018/043999
Publication Date:
June 27, 2019
Filing Date:
November 29, 2018
Export Citation:
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Assignee:
TOHO TITANIUM CO LTD (JP)
International Classes:
C08F4/654; C08F10/00
Domestic Patent References:
WO2016121549A12016-08-04
Foreign References:
US6521560B12003-02-18
JPS6049004A1985-03-18
JPS5684707A1981-07-10
JP2014037521A2014-02-27
Attorney, Agent or Firm:
ASHITABA INTERNATIONAL PATENT OFFICE (JP)
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