Title:
TRANSITION METAL COMPOUNDS, POLYMERIZATION CATALYSTS FOR CONJUGATED DIENES, PROCESS FOR PRODUCTION OF CONJUGATED DIENE POLYMERS, POLYISOPRENE AND PRODUCTS OF CYCLIZATION THEREOF, AND PROCESS FOR PRODUCTION OF THE SAME
Document Type and Number:
WIPO Patent Application WO/2004/020413
Kind Code:
A1
Abstract:
The invention provides transition metal compounds which are useful as highly active catalysts suitable for the polymerization of various conjugated dienes and can be synthesized at a low cost by a simple process; polymerization catalysts for conjugated dienes which contain the transition metal compounds; a process for production of conjugated diene polymers; polyisoprene and products of cyclization thereof; and a process for production of the same. The transition metal compounds are each constituted of a Group 8 transition metal and a heterocyclic compound of the general formula (1) coordinating to the metal: (1) wherein A1 to A4 are each independently a carbon or nitrogen atom; i, j, k, and l are each 1 or 0 when A1, A2, A3, and A4 are each a carbon atom or a nitrogen atom respectively; and R1 to R6 are each independently hydrogen, halogeno, a hydrocarbon group, or the like.
Inventors:
IKEDA SHINTARO (JP)
Application Number:
PCT/JP2003/010863
Publication Date:
March 11, 2004
Filing Date:
August 27, 2003
Export Citation:
Assignee:
ZEON CORP (JP)
IKEDA SHINTARO (JP)
IKEDA SHINTARO (JP)
International Classes:
C07D307/33; C07F15/02; C08F4/645; C08F36/04; C08F10/00; (IPC1-7): C07D213/53; C08F4/645; C08F36/08
Domestic Patent References:
| WO2000018776A1 | 2000-04-06 | |||
| WO1998003521A1 | 1998-01-29 | |||
| WO1999003867A1 | 1999-01-28 | |||
| WO1998027124A1 | 1998-06-25 |
Foreign References:
| JPS5770102A | 1982-04-30 |
Other References:
DATABASE CAPLUS [online] SEO ET AL: "Olefin Homopolymerization catalyzed over asymetric and symmetric Ni (II) diimine complexes.", XP002976360, accession no. STN Database accession no. 2002:731479
DATABASE CAPLUS [online] ALSHEHRI ET AL: "Attenuation of substituent effects on reactivities of low-spin iron (II) complexes of Schiff base ligands.", XP002976361, accession no. STN Database accession no. 1999:181492
MENEGHETTI SIMONI PLENTZ ET AL.: "Oligomerization of olefins catalyzed by new catonic polladium(II) complexes containing an unsymmetrical (SYM97)-diimine ligand", ORGANOMETALLICS, vol. 18, no. 15, 1999, pages 2734 - 2737, XP000926130
BABA YUJI ET AL.: "Polymerization catalyses of iron complexes having chelating N-donor ligands", POLYMER PREPRINTS, JAPAN, vol. 50, no. 7, 2001, pages 1236, XP002976362
DATABASE CAPLUS [online] ALSHEHRI ET AL: "Attenuation of substituent effects on reactivities of low-spin iron (II) complexes of Schiff base ligands.", XP002976361, accession no. STN Database accession no. 1999:181492
MENEGHETTI SIMONI PLENTZ ET AL.: "Oligomerization of olefins catalyzed by new catonic polladium(II) complexes containing an unsymmetrical (SYM97)-diimine ligand", ORGANOMETALLICS, vol. 18, no. 15, 1999, pages 2734 - 2737, XP000926130
BABA YUJI ET AL.: "Polymerization catalyses of iron complexes having chelating N-donor ligands", POLYMER PREPRINTS, JAPAN, vol. 50, no. 7, 2001, pages 1236, XP002976362
Attorney, Agent or Firm:
Yamashita, Akihiko c/o Tokyo, Central Patent Firm (4th Floor Oak Building Kyobashi, 16-10,
Kyobashi 1-chom, Chuou-ku Tokyo, JP)
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