Title:
PROCESSES FOR PRODUCING NORBORNENE OPEN-RING POLYMERS AND HYDROGENATED NORBORNENE OPEN-RING POLYMERS
Document Type and Number:
WIPO Patent Application WO/2002/072659
Kind Code:
A1
Abstract:
A crystalline open-ring polymer is produced by ring-opening polymerization of a norbornene monomer through metathesis with a polymerization catalyst comprising both a product of reaction of a specific transition metal halide or oxyhalide with a substituted phenol or phenoxide and an organometallic reducing agent. Further, hydrogenation of the obtained polymer gives a crystalline hydrogenated open-ring polymer. When a novel polymerization catalyst comprising an aromatic dioxy ligand is used as the polymerization catalyst, highly crystalline norbornene open-ring polymers can be produced. Additionally, products of hydrogenation of them also exhibit high crystallinity.
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Inventors:
HAYANO SHIGETAKA (JP)
KURAKATA HIROSHI (JP)
TSUNOGAE YASUO (JP)
KURAKATA HIROSHI (JP)
TSUNOGAE YASUO (JP)
Application Number:
PCT/JP2002/001649
Publication Date:
September 19, 2002
Filing Date:
February 25, 2002
Export Citation:
Assignee:
ZEON CORP (JP)
HAYANO SHIGETAKA (JP)
KURAKATA HIROSHI (JP)
TSUNOGAE YASUO (JP)
HAYANO SHIGETAKA (JP)
KURAKATA HIROSHI (JP)
TSUNOGAE YASUO (JP)
International Classes:
C07C39/235; C08G61/08; (IPC1-7): C08G61/06
Domestic Patent References:
| WO2000012586A1 | 2000-03-09 |
Attorney, Agent or Firm:
Wada, Yasuro c/o ZEON CORPORATION 6-1 (Marunouchi 2-chome Chiyoda-ku, Tokyo, JP)
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