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Title:
METHOD FOR PRODUCING CATALYST FOR OLEFIN POLYMERIZATION, CATALYST FOR OLEFIN POLYMERIZATION, AND METHOD FOR PRODUCING OLEFIN POLYMER
Document Type and Number:
WIPO Patent Application WO/2021/240955
Kind Code:
A1
Abstract:
The present invention provides a method for producing a catalyst for olefin polymerization, said catalyst exhibiting excellent catalytic activity during the polymerization of olefins by being suppressed in decrease of polymerization activity caused by early deactivation of active sites after the formation of the catalyst, while enabling the production of an olefin polymer that has excellent tacticity.　A method for producing a catalyst for olefin polymerization by bringing a solid catalyst component (A), which contains magnesium, titanium, a halogen and an internal electron-donating compound, and a specific organic aluminum compound (B), which is represented by general formula (I), into contact with each other, said method being characterized in that at least one of the solid catalyst component (A) and the organic aluminum compound (B) is brought into contact with a hydrocarbon compound in advance, said hydrocarbon compound having one or more vinyl groups.

Inventors:
KONO HIROYUKI (JP)
SAKEMI TAKAHARU (JP)
UOZUMI TOSHIYA (JP)
GOTO KEISUKE (JP)
Application Number:
PCT/JP2021/010321
Publication Date:
December 02, 2021
Filing Date:
March 15, 2021
Export Citation:
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Assignee:
TOHO TITANIUM CO LTD (JP)
International Classes:
C08F10/00; C08F4/654
Domestic Patent References:
WO2015012963A12015-01-29
Foreign References:
JP2009249506A2009-10-29
JPH05194637A1993-08-03
JPH07173213A1995-07-11
JPH1036430A1998-02-10
JP2015193787A2015-11-05
JP2016089130A2016-05-23
JP2004269467A2004-09-30
JPS5763310A1982-04-16
JPS584132A1983-01-11
JPS6251633A1987-03-06
JPH0374341A1991-03-28
JPH04368391A1992-12-21
JPH0873388A1996-03-19
Attorney, Agent or Firm:
ASHITABA INTERNATIONAL PATENT OFFICE (JP)
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