Title:
POLYETHYLENE HAVING IMPROVED BRANCHING DEGREE DISTRIBUTION
Document Type and Number:
WIPO Patent Application WO/2012/086780
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a polyethylene which can be produced using a novel chromium catalyst having an organic aluminum compound supported thereon and has excellent moldability, excellent impact resistance and an excellent balance between stiffness and durability; a process for producing the polyethylene; and a hollow plastic molding comprising the polyethylene. The polyethylene produced according to the present invention can be produced by polymerization using a chromium catalyst, and has a weight average molecular weight (Mw) of 30,000 or more at a maximum value in a branching degree distribution curve that illustrates the molecular weight dependency of short-chain branches each having 4 or more carbon atoms.
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Inventors:
KUZUBA YUUICHI
MONOI TAKASHI
KANAZAWA SATOSHI
OGAWA KOUICHI
HATTORI TAKAAKI
YOSHIMOTO KEIICHI
MONOI TAKASHI
KANAZAWA SATOSHI
OGAWA KOUICHI
HATTORI TAKAAKI
YOSHIMOTO KEIICHI
Application Number:
PCT/JP2011/079872
Publication Date:
June 28, 2012
Filing Date:
December 22, 2011
Export Citation:
Assignee:
JAPAN POLYETHYLENE CORP (JP)
KUZUBA YUUICHI
MONOI TAKASHI
KANAZAWA SATOSHI
OGAWA KOUICHI
HATTORI TAKAAKI
YOSHIMOTO KEIICHI
KUZUBA YUUICHI
MONOI TAKASHI
KANAZAWA SATOSHI
OGAWA KOUICHI
HATTORI TAKAAKI
YOSHIMOTO KEIICHI
International Classes:
C08F4/78; C08F4/69; C08F10/00
Domestic Patent References:
| WO1994013708A1 | 1994-06-23 | |||
| WO2000061645A1 | 2000-10-19 |
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Other References:
POLYM. ENG. SCI., vol. 45, 2005, pages 1203
J. POLYM. SCI., vol. 45, 2007, pages 3135
MACROMOLECULES, vol. 32, no. 11, 1999, pages 3817
M. P. MCDANIEL: "Advances in Catalysis", vol. 33, 1985, ACADEMIC PRESS INC., pages: 47
M. P. MCDANIEL: "Handbook of Heterogeneous Catalysts", 1977, VCH, pages: 2400
M. B. WELCH ET AL.: "Handbook of Polyolefins: Synthesis and Properties", 1993, MARCEL DEKKER, pages: 21
C. E. MARSDEN: "Preparation of Catalysts", 1991, ELSEVIER SCIENCE PUBLISHERS, pages: 215
C. E. MARSDEN, PLASTICS, RUBBER AND COMPOSITES PROCESSING AND APPLICATIONS, vol. 21, 1994, pages 193
V. J. RUDDICK, J. PHYS. CHEM., vol. 100, 1996, pages 11062
S. M. AUGUSTINE ET AL., J. CATAL., vol. 161, 1996, pages 641
T. PULLUKAT ET AL., J. POLYM. SCI., POLYM. CHEM., vol. 18, 1980, pages 2857
M. P. MCDANIEL ET AL., J. CATAL., vol. 82, 1983, pages 118
T. MOLE ET AL.: "Organoaluminum Compounds", 1972, ELSEVIER
M. TERANO ET AL., J. MOL. CATAL. A: CHEMICAL, vol. 238, 2005, pages 142
M. P. MCDANIEL ET AL., J. PHYS. CHEM., vol. 95, 1991, pages 3289
T. MONOI ET AL., POLYM. J., vol. 35, 2003, pages 608
0. ESPELID ET AL., J. CATAL., vol. 195, 2000, pages 125
KAZUO MATSUURA; NAOTAKA MIKAMI: "Technical Handbook for Polyethylene", 2001, KOGYO CHOSAKAI PUBLISHING CO., LTD., pages: 148
J. SCHEIRS; W. KAMINSKY: "Metallocene-based Polyolefins", vol. 2, 2000, JOHN WILEY & SONS, pages: 365
"Technical Handbook for Polyethylene", pages: 103 - 104
"Technical Handbook for Polyethylene", pages: 156 - 157
J. POLYM. SCI., vol. 45, 2007, pages 3135
MACROMOLECULES, vol. 32, no. 11, 1999, pages 3817
M. P. MCDANIEL: "Advances in Catalysis", vol. 33, 1985, ACADEMIC PRESS INC., pages: 47
M. P. MCDANIEL: "Handbook of Heterogeneous Catalysts", 1977, VCH, pages: 2400
M. B. WELCH ET AL.: "Handbook of Polyolefins: Synthesis and Properties", 1993, MARCEL DEKKER, pages: 21
C. E. MARSDEN: "Preparation of Catalysts", 1991, ELSEVIER SCIENCE PUBLISHERS, pages: 215
C. E. MARSDEN, PLASTICS, RUBBER AND COMPOSITES PROCESSING AND APPLICATIONS, vol. 21, 1994, pages 193
V. J. RUDDICK, J. PHYS. CHEM., vol. 100, 1996, pages 11062
S. M. AUGUSTINE ET AL., J. CATAL., vol. 161, 1996, pages 641
T. PULLUKAT ET AL., J. POLYM. SCI., POLYM. CHEM., vol. 18, 1980, pages 2857
M. P. MCDANIEL ET AL., J. CATAL., vol. 82, 1983, pages 118
T. MOLE ET AL.: "Organoaluminum Compounds", 1972, ELSEVIER
M. TERANO ET AL., J. MOL. CATAL. A: CHEMICAL, vol. 238, 2005, pages 142
M. P. MCDANIEL ET AL., J. PHYS. CHEM., vol. 95, 1991, pages 3289
T. MONOI ET AL., POLYM. J., vol. 35, 2003, pages 608
0. ESPELID ET AL., J. CATAL., vol. 195, 2000, pages 125
KAZUO MATSUURA; NAOTAKA MIKAMI: "Technical Handbook for Polyethylene", 2001, KOGYO CHOSAKAI PUBLISHING CO., LTD., pages: 148
J. SCHEIRS; W. KAMINSKY: "Metallocene-based Polyolefins", vol. 2, 2000, JOHN WILEY & SONS, pages: 365
"Technical Handbook for Polyethylene", pages: 103 - 104
"Technical Handbook for Polyethylene", pages: 156 - 157
Attorney, Agent or Firm:
HAMADA Yuriko et al. (JP)
Yuriko Hamada (JP)
Yuriko Hamada (JP)
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