Title:
LIQUID CRYSTALLINE POLYOLEFIN
Document Type and Number:
WIPO Patent Application WO/2005/123794
Kind Code:
A1
Abstract:
The invention relates to a liquid crystalline polyolefin which can be produced industrially and inexpensively and is excellent in lightness in weight and processability. More particularly, the invention provides a liquid crystalline polyolefin having a specific structure and polymer compositions containing the polyolefin. A liquid crystalline polyolefin consisting of a random copolymer which comprises cis-(substituted methylene) -(substituted 1,3-cyclopentane) units represented by the general formula (1), trans-(substituted methylene) -(substituted 1,3-cyclopentane) units represented by the general formula (2), and (substituted methylene)-(substituted 4-alkene) units represented by the general formula (3) and which has a degree of cyclization of 90 % or above as defined by the formula: (x + y)/(x + y + z) and a content of trans structure of 70 % or above as defined by the formula: y/(x + y) wherein x, y and z are the number of units of the general formula (1), that of units of the general formula (2), and that of units of the general formula (3), respectively.
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Inventors:
NAGA NAOFUMI (JP)
SONE MASATO (JP)
MURASE SHIGEMITSU (JP)
SONE MASATO (JP)
MURASE SHIGEMITSU (JP)
Application Number:
PCT/JP2005/011166
Publication Date:
December 29, 2005
Filing Date:
June 17, 2005
Export Citation:
Assignee:
UNIV TOKYO AGRICULTURE (JP)
NAGA NAOFUMI (JP)
SONE MASATO (JP)
MURASE SHIGEMITSU (JP)
NAGA NAOFUMI (JP)
SONE MASATO (JP)
MURASE SHIGEMITSU (JP)
International Classes:
C08F36/20; C08L47/00; (IPC1-7): C08F36/20; C08L47/00
Domestic Patent References:
| WO1991009065A1 | 1991-06-27 |
Foreign References:
| JPH0987312A | 1997-03-31 |
Other References:
COATES G. ET AL: "Enantioselective cyclopolymerization of 1,5-haxadiene catalized by chiral zirconocenes: a novel strategy for the synthesis of optically active polymers with chirality in the main chain.", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY., no. 10, 1993, pages 91 - 98, XP002990903
MITANI M. ET AL: "Stereoselective cyclopolymerization of 1,5-hexadiene using novel bis(ferrocenyl)zirconocene catalyst.", CHEMISTY LETTERS., no. 10, 1995, pages 905 - 906, XP000572720
MITANI M. ET AL: "Stereoselective cyclopolymerization of 1,5-hexadiene using novel bis(ferrocenyl)zirconocene catalyst.", CHEMISTY LETTERS., no. 10, 1995, pages 905 - 906, XP000572720
Attorney, Agent or Firm:
Shobayashi, Masayuki (25-8 Higashi-ikebukuro 1-chom, Toshima-ku Tokyo 13, JP)
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