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Title:
PRODUCTION METHOD FOR OLEFIN-POLYMERIZATION CATALYST AND PRODUCTION METHOD FOR OLEFIN POLYMER
Document Type and Number:
WIPO Patent Application WO/2016/121549
Kind Code:
A1
Abstract:
Provided is a production method for an olefin-polymerization catalyst that, even when an electron-donating compound other than a phthalate ester is used, demonstrates excellent catalytic activity during polymerization and can produce an olefin polymer that has excellent stereoregularity and bulk density and has an excellent particle size distribution wherein fine/coarse particle content has been reduced. A production method for an olefin-polymerization catalyst, the method being characterized by having a step for bringing an olefin-polymerization solid catalytic component, a vinyl silane compound, an organic silicon compound, and an organic aluminum compound into contact in an inert organic solvent under an inert gas atmosphere in the absence of a specific vinyl compound, the olefin-polymerization solid catalytic component including a magnesium compound, a titanium halide compound, and an electron-donating compound that has a diol skeleton but does not have a phthalate ester structure, and the organic silicon compound having at least one group selected from among an alkoxy group and an amino group but not having a vinyl group. The production method is also characterized in that a cleaning treatment is not performed after the vinyl silane compound has been added to the reaction system.

Inventors:
KONO HIROYUKI (JP)
UOZUMI TOSHIYA (JP)
YAMADA SHINGO (JP)
SUGANO TOSHIHIKO (JP)
Application Number:
PCT/JP2016/051266
Publication Date:
August 04, 2016
Filing Date:
January 18, 2016
Export Citation:
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Assignee:
TOHO TITANIUM CO LTD (JP)
International Classes:
C08F4/654; C08F10/00
Domestic Patent References:
WO2014132759A12014-09-04
WO2013042400A12013-03-28
WO2013005463A12013-01-10
WO2008120795A12008-10-09
Foreign References:
Other References:
See also references of EP 3255067A4
Attorney, Agent or Firm:
AKATSUKA Kenji et al. (JP)
Kenji Akatsuka (JP)
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