ETHYLENE POLYMERISATION CATALYST AND ETHYLENE POLYMER PRODUCTION METHOD

WIPO Patent Application WO/2011/099584

A1

Disclosed is an ethylene homopolymer or an ethylene and an α-olefin copolymer catalyst which includes a complex represented by formula (1). (In the formula: n is 2 or 3; R1 and R2 are independently an optionally substituted alkyl group or a halogen atom; L is a ligand represented by CH2R3, a halogen atom, OR4, or NR5R6; R3 is a hydrogen atom, an aromatic group, or a trialkylsilyl group; R4 is a C1-6 lower alkyl group; and R5 and R6 are independently a hydrogen atom or a C1-6 lower alkyl group.) Also disclosed is an ethylene polymer production method which includes independently polymerising ethylene, or copolymerising ethylene and α-olefin, in the presence of the above catalyst. Further disclosed are a tetradentate post-metallocene complex which is highly active in ethylene polymers, and an ethylene polymer production method which uses the catalyst containing this complex.

JP4106221	Method for producing catalyst component for olefin polymerization
WO/1999/029739	REDUCED OXIDATION STATE TRANSITION METAL COMPOUNDS USEFUL AS OLEFIN POLYMERIZATION CATALYSTS
JP4482448	Group 4 metal complex containing 4-aryl-substituted tricyclic indenyl derivative

ISHII AKIHIKO (JP)
NAKATA NORIO (JP)
TODA TOMOYUKI (JP)

PCT/JP2011/052938

August 18, 2011

February 10, 2011

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UNIV SAITAMA NAT UNIV CORP (JP)
SUMITOMO CHEMICAL CO (JP)
ISHII AKIHIKO (JP)
NAKATA NORIO (JP)
TODA TOMOYUKI (JP)

C08F4/645; C08F10/00; C07C323/16; C07F7/00

JP2003327612A	2003-11-19
JP2005523952A	2005-08-11
JP2006516668A	2006-07-06

SIKs & Co. (JP)
Patent business corporation patent firm Sykes (JP)

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