Title:
CATALYSTS FOR OLEFIN POLYMERIZATION
Document Type and Number:
WIPO Patent Application WO2001092342
Kind Code:
A3
Abstract:
Transition metal complexes of selected monoanionic phosphine ligands, which also contain a selected Group 15 or 16 (IUPAC) element and which are coordinated to a Group 3 to 11 (IUPAC) transition metal or a lanthanide metal, are po-lymerization catalysts for the (co)polymerization of olefins such as ethylene and alpha -olefins, and the copolymerization of such olefins with polar group-containing olefins. These and other nickel complexes of neutral and monoanionic bidentate ligands copolymerize ethylene and polar comonomers, especially acrylates, at relatively high ethylene pressures and surprisingly high temperatures, and give good incorporation of the polar comonomers and good polymer productivity. These copolymers are often unique structures, which are described.
Inventors:
WANG LIN (US)
HAUPTMAN ELISABETH (US)
JOHNSON LYNDA K (US)
MCCORD ELIZABETH F (US)
WANG YING (US)
ITTEL STEVEN D (US)
HAUPTMAN ELISABETH (US)
JOHNSON LYNDA K (US)
MCCORD ELIZABETH F (US)
WANG YING (US)
ITTEL STEVEN D (US)
Application Number:
PCT/US2001/017627
Publication Date:
January 16, 2003
Filing Date:
May 31, 2001
Export Citation:
Assignee:
DU PONT (US)
WANG LIN (US)
HAUPTMAN ELISABETH (US)
JOHNSON LYNDA K (US)
MCCORD ELIZABETH F (US)
WANG YING (US)
ITTEL STEVEN D (US)
WANG LIN (US)
HAUPTMAN ELISABETH (US)
JOHNSON LYNDA K (US)
MCCORD ELIZABETH F (US)
WANG YING (US)
ITTEL STEVEN D (US)
International Classes:
C07C251/08; B01J31/00; C07C251/20; C07C251/24; C07F5/06; C07F7/00; C07F9/50; C07F9/572; C07F9/58; C07F15/04; C07F19/00; C08F4/00; C08F4/06; C08F4/16; C08F4/44; C08F4/60; C08F4/605; C08F4/619; C08F4/642; C08F4/70; C08F4/76; C08F4/80; C08F10/00; C08F10/02; C08F118/02; C08F210/00; C08F110/02; C08F210/02; (IPC1-7): C08F4/70; C07F7/00; C07F15/04; C08F4/642; C08F4/80; C08F110/02; C08F210/02
Domestic Patent References:
| WO1998030609A1 | 1998-07-16 |
Other References:
HITCHCOCK, PETER B. ET AL: "Use of a highly hindered phosphino-alkoxide ligand in the formation of monomeric homoleptic lanthanoid metal complexes: x-ray structures of [Ln(OC(Bu-tert)2CH2PMe2)3] (Ln = Y or Nd)", J. CHEM. SOC., CHEM. COMMUN. (1988), (23), 1557-8, XP001073452
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