METHOD FOR PRODUCING CATALYST FOR POLYMERIZATION OF OLEFINS

Title:

METHOD FOR PRODUCING CATALYST FOR POLYMERIZATION OF OLEFINS

Document Type and Number:

WIPO Patent Application WO/2017/090377

Kind Code:

A1

Abstract:

Provided is a method for producing a catalyst for polymerization of olefins in which exceptional catalytic activity is exhibited during polymerization and with which it is possible to produce a polymer having exceptional stereoregularity, melt flowability, and other such properties even when the polymerization catalyst is prepared in an inert-gas atmosphere in cases when a solid catalyst component including an electron-donating compound other than a phthalic acid ester is used. A method for producing a catalyst for polymerization of olefins, characterized in that a solid catalyst component (A) including magnesium atoms, titanium atoms, halogen atoms, and electron-donating compounds free of phthalic acid ester structures, a specific organic aluminum compound (B), and an external electron-donating compound (C) are subjected to preliminary contact treatment by contact for 30 minutes or less at a temperature of less than 15°C with no olefins present.

Inventors:

KONO HIROYUKI (JP)
MASUYAMA TAKAHIRO (JP)
MARUI SHINTA (JP)
UOZUMI TOSHIYA (JP)

Application Number:

PCT/JP2016/082094

Publication Date:

June 01, 2017

Filing Date:

October 28, 2016

Export Citation:

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Assignee:

TOHO TITANIUM CO LTD (JP)

International Classes:

C08F4/654; C08F10/00

Foreign References:

JPH08231633A	1996-09-10
JPH0656924A	1994-03-01
JPH0680719A	1994-03-22
JPH10120719A	1998-05-12
JP2000336130A	2000-12-05
JP2009167431A	2009-07-30
JP2012077276A	2012-04-19

Other References: