Title:
CATALYSTS FOR OLEFIN POLYMERIZATION AND PROCESS FOR PRODUCING POLYMER WITH THE SAME
Document Type and Number:
WIPO Patent Application WO/2001/066604
Kind Code:
A1
Abstract:
An olefin polymerization catalyst which comprises (A) a transition metal complex having a chelate-type phosphorus compound as a ligand and (B) at least one Lewis acid compound selected among organoaluminum compounds and organoboron compounds; another olefin polymerization catalyst which comprises the ingredient (A) and (C) a clay mineral and/or a lamellar ion-exchanging compound, and still another olefin polymerization catalyst which comprises an ionic transition metal complex having a chelate-type phosphorus compound as a ligand. All these catalysts have high activity and enable an olefin homo- or copolymer, especially an olefin copolymer having polar groups, to be efficiently produced.
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Inventors:
OZAWA FUMIYUKI (JP)
YOSHIFUJI MASAAKI (JP)
YOSHIFUJI MASAAKI (JP)
Application Number:
PCT/JP2001/001770
Publication Date:
September 13, 2001
Filing Date:
March 07, 2001
Export Citation:
Assignee:
IDEMITSU PETROCHEMICAL CO (JP)
OZAWA FUMIYUKI (JP)
YOSHIFUJI MASAAKI (JP)
OZAWA FUMIYUKI (JP)
YOSHIFUJI MASAAKI (JP)
International Classes:
C08F4/645; C08F10/00; (IPC1-7): C08F4/645; C08F10/00
Domestic Patent References:
| WO1998040420A2 | 1998-09-17 |
Foreign References:
| EP0454231A2 | 1991-10-30 |
Other References:
IKEDA SHINTARO ET AL.: "Synthesis and reactions of palladium and platinum complexes bearing diphosphinidenecyclobutene ligands: a thermally stable catalyst for ethylene polymerization", ANGEW. CHEM. INT. ED., vol. 39, no. 24, 15 December 2000 (2000-12-15), pages 4512 - 4513, XP002940688
Attorney, Agent or Firm:
Ohtani, Tamotsu (Toranomon 3-chome Minato-ku, Tokyo, JP)
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