Title:
POLYMERIZATION OF OLEFINS
Document Type and Number:
WIPO Patent Application WO2001092348
Kind Code:
A3
Abstract:
Olefins are polymerized by novel transition metal complexes of selected iminocarboxylate and iminoamido ligands, sometimes in the presence of cocatalysts such as alkylaluminum compounds or neutral Lewis acids. Olefins which may be (co)polymerized include ethylene, a-olefins, and olefins containing polar groups such as olefinic esters for example acrylate esters. Also described are certain "Zwitterionic" transition metal complexes as polymerization catalysts for making polar copolymers. The resulting polymers are useful as thermoplastics and elastomers.
Inventors:
WANG LIN (US)
JOHNSON LYNDA K (US)
IONKIN ALEX S (US)
JOHNSON LYNDA K (US)
IONKIN ALEX S (US)
Application Number:
PCT/US2001/017636
Publication Date:
July 25, 2002
Filing Date:
May 31, 2001
Export Citation:
Assignee:
DU PONT (US)
WANG LIN (US)
JOHNSON LYNDA K (US)
IONKIN ALEX S (US)
WANG LIN (US)
JOHNSON LYNDA K (US)
IONKIN ALEX S (US)
International Classes:
C07F7/00; B01J31/00; C07F7/28; C07F15/00; C07F15/04; C08F4/06; C08F4/44; C08F4/605; C08F4/64; C08F4/642; C08F4/70; C08F10/00; (IPC1-7): C08F10/00; C07F7/00; C07F15/00; C08F4/64; C08F4/70
Domestic Patent References:
| WO1998030609A1 | 1998-07-16 |
Foreign References:
| US6174976B1 | 2001-01-16 |
Other References:
SEVERIN, KAY ET AL: "Metal complexes of biologically important ligands. LXXV. Synthesis of organometallic cobalt(III), iridium(III) and ruthenium(II) complexes with.alpha.-iminocarboxylate ligands", Z. NATURFORSCH., B: CHEM. SCI. (1995), 50(2), 265-74, XP001064853
KOMON, ZACHARY J. A. ET AL: "Synthesis of butene-ethylene and hexene-butene-ethylene copolymers from ethylene via tandem action of well-defined homogeneous catalysts", J. AM. CHEM. SOC. (2000), 122(8), 1830 -1831, XP001065492
LEE, BUN YEOUL ET AL: ".alpha.-Iminocarboxamidato-Nickel(II) Ethylene Polymerization Catalysts", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2001), 123(22), 5352-5353, XP001066396
KOMON, ZACHARY J. A. ET AL: "Synthesis of butene-ethylene and hexene-butene-ethylene copolymers from ethylene via tandem action of well-defined homogeneous catalysts", J. AM. CHEM. SOC. (2000), 122(8), 1830 -1831, XP001065492
LEE, BUN YEOUL ET AL: ".alpha.-Iminocarboxamidato-Nickel(II) Ethylene Polymerization Catalysts", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2001), 123(22), 5352-5353, XP001066396
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