JP2002502897A - デュアルサイト触媒の使用により得られるポリエチレン - Google Patents

デュアルサイト触媒の使用により得られるポリエチレン

Info

Publication number
JP2002502897A
JP2002502897A JP2000530558A JP2000530558A JP2002502897A JP 2002502897 A JP2002502897 A JP 2002502897A JP 2000530558 A JP2000530558 A JP 2000530558A JP 2000530558 A JP2000530558 A JP 2000530558A JP 2002502897 A JP2002502897 A JP 2002502897A
Authority
JP
Japan
Prior art keywords
polyethylene
catalyst
polymer
polymerization
produced
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2000530558A
Other languages
English (en)
Japanese (ja)
Inventor
フォルレスタッド,アリルド
アルムクイスト,フィダール
オムムンドセン,エスペン
ドレング,トレ
Original Assignee
ボレアリス テクノロジー オイ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by ボレアリス テクノロジー オイ filed Critical ボレアリス テクノロジー オイ
Publication of JP2002502897A publication Critical patent/JP2002502897A/ja
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F10/02Ethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/69Chromium, molybdenum, tungsten or compounds thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F110/00Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02Ethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F210/00Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/639Component covered by group C08F4/62 containing a transition metal-carbon bond
    • C08F4/63912Component covered by group C08F4/62 containing a transition metal-carbon bond in combination with an organoaluminium compound
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/639Component covered by group C08F4/62 containing a transition metal-carbon bond
    • C08F4/63916Component covered by group C08F4/62 containing a transition metal-carbon bond supported on a carrier, e.g. silica, MgCl2, polymer
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/639Component covered by group C08F4/62 containing a transition metal-carbon bond
    • C08F4/6392Component covered by group C08F4/62 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
    • C08F4/63922Component covered by group C08F4/62 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
    • C08F4/63925Component covered by group C08F4/62 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually non-bridged
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/64Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/65912Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an organoaluminium compound
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/64Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/6592Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
    • C08F4/65922Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
    • C08F4/65925Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually non-bridged

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Peptides Or Proteins (AREA)
  • Polymerisation Methods In General (AREA)
JP2000530558A 1998-02-09 1999-02-09 デュアルサイト触媒の使用により得られるポリエチレン Pending JP2002502897A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO980552A NO980552D0 (no) 1998-02-09 1998-02-09 Katalysatorbestandel og katalysator for (ko)polymerisering av etylen, og fremgangsmåte for fremstilling av slik
NO19980552 1998-02-09
PCT/NO1999/000044 WO1999040131A1 (en) 1998-02-09 1999-02-09 Polyethylenes obtained by use of dual site catalyst

Publications (1)

Publication Number Publication Date
JP2002502897A true JP2002502897A (ja) 2002-01-29

Family

ID=19901654

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2000530558A Pending JP2002502897A (ja) 1998-02-09 1999-02-09 デュアルサイト触媒の使用により得られるポリエチレン
JP2000530553A Pending JP2002502895A (ja) 1998-02-09 1999-02-09 エチレン(共)重合用触媒及びその製造法

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2000530553A Pending JP2002502895A (ja) 1998-02-09 1999-02-09 エチレン(共)重合用触媒及びその製造法

Country Status (14)

Country Link
US (2) US6780809B1 (enExample)
EP (2) EP1053264A1 (enExample)
JP (2) JP2002502897A (enExample)
KR (1) KR20010040769A (enExample)
CN (2) CN1136241C (enExample)
AR (1) AR018078A1 (enExample)
AT (1) ATE283866T1 (enExample)
AU (2) AU740974B2 (enExample)
BR (2) BR9907708A (enExample)
CA (2) CA2320436C (enExample)
DE (1) DE69922340T2 (enExample)
ES (1) ES2234237T3 (enExample)
NO (1) NO980552D0 (enExample)
WO (2) WO1999040131A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003534428A (ja) * 2000-05-24 2003-11-18 フイリツプス ピトローリアム カンパニー ポリマー組成物の製法

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO980552D0 (no) * 1998-02-09 1998-02-09 Borealis As Katalysatorbestandel og katalysator for (ko)polymerisering av etylen, og fremgangsmåte for fremstilling av slik
NO981631L (no) * 1998-04-08 1999-10-11 Borealis As Katalysator for polymerisasjon av etylen, og fremgangsmaate for fremstilling av denne
US6272384B1 (en) 1999-05-27 2001-08-07 Urologix, Inc. Microwave therapy apparatus
GB9919718D0 (en) 1999-08-19 1999-10-20 Borealis As Process
US6433133B1 (en) * 1999-11-16 2002-08-13 Eastman Chemical Company Process for reducing the weight average molecular weight and melt index ratio of polyethylenes and polyethylene products
KR100893971B1 (ko) 2001-04-30 2009-04-20 더블유.알. 그레이스 앤드 캄파니-콘. 지지된 이중 전이금속 촉매 시스템
US6943224B2 (en) 2001-04-30 2005-09-13 W. R. Grace & Co.-Conn. Process for preparing supported transition metal catalyst systems and catalyst systems prepared thereby
CN100549037C (zh) * 2002-12-17 2009-10-14 英诺文尼欧洲有限公司 烯烃聚合载体催化剂
US20040192864A1 (en) * 2003-03-31 2004-09-30 Exxonmobil Chemical Company Utility conduit resin
US7384885B2 (en) 2003-03-31 2008-06-10 Exxonmobil Chemical Patents Inc. Catalyst activation and resins therefrom
US20040192865A1 (en) * 2003-03-31 2004-09-30 Roger Scott T. Resin for extruded pipe
WO2004096868A1 (en) * 2003-03-31 2004-11-11 Exxonmobil Chemical Patents Inc. Resin for extruded pipe
AU2003226161A1 (en) * 2003-03-31 2004-11-23 Exxonmobil Chemical Patents Inc. Utility conduit resin
DE102005019395A1 (de) * 2005-04-25 2006-10-26 Basell Polyolefine Gmbh Formmasse aus Polyethylen zur Folienherstellung und Verfahren zum Herstellen der Formmasse in Gegenwart eines Mischkatalysators
DE102005019393A1 (de) 2005-04-25 2006-10-26 Basell Polyolefine Gmbh Polyethylenformmassen für Spritzgussanwendungen
US8129472B2 (en) * 2006-04-07 2012-03-06 Dow Global Technologies Llc Polyolefin compositions, articles made therefrom and methods for preparing the same
CA2605044C (en) * 2007-10-01 2014-12-02 Nova Chemicals Corporation Polymerization process using a mixed catalyst system
CA2605077C (en) * 2007-10-01 2014-07-08 Nova Chemicals Corporation A co-supported catalyst system
CA2753550C (en) * 2009-02-27 2017-08-08 Chevron Phillips Chemical Company Lp Polyethylene film having improved barrier properties and methods of making same
US7951881B2 (en) 2009-02-27 2011-05-31 Chevron Phillips Chemical Company Lp Polyethylene film having improved barrier properties and methods of making same
US8852748B2 (en) 2009-02-27 2014-10-07 Chevron Phillips Chemical Company Lp Polyethylene film having improved barrier properties and methods of making same
CA2713042C (en) 2010-08-11 2017-10-24 Nova Chemicals Corporation Method of controlling polymer architecture
US8148470B1 (en) 2010-11-19 2012-04-03 Exxonmobil Chemical Patents Inc. Processes for making multimodal molecular weight distribution polyolefins
BR112013002457B1 (pt) * 2010-11-19 2022-04-26 Univation Technologies, Llc Processo para fazer uma composição de poliolefina multimodal e sistema de catalisador misto
US8653208B2 (en) * 2012-05-18 2014-02-18 Union Carbide Chemicals & Plastics Technology Llc Process for preparing catalysts and catalysts made thereby
CA2783494C (en) 2012-07-23 2019-07-30 Nova Chemicals Corporation Adjusting polymer composition
CN104877051B (zh) * 2015-05-06 2018-04-13 无锡耀汇科技有限公司 一种聚烯烃催化剂
CN104877052B (zh) * 2015-05-06 2018-04-13 无锡耀汇科技有限公司 一种聚乙烯树脂
EP3445790B1 (en) * 2016-04-20 2023-07-12 Univation Technologies, LLC Polymer flow index modifier
CN110167975A (zh) 2017-01-11 2019-08-23 Sabic环球技术有限责任公司 用于乙烯聚合的氧化铬催化剂
WO2018130539A1 (en) * 2017-01-11 2018-07-19 Sabic Global Technologies B.V. Chromium oxide catalyst for ethylene polymerization
US11952480B2 (en) 2018-02-05 2024-04-09 Exxonmobil Chemical Patents Inc. Enhanced processability of LLDPE by addition of ultra-high molecular weight density polyethylene
KR20230056023A (ko) * 2020-08-24 2023-04-26 셀라니즈 인터내셔날 코포레이션 좁은 분자량 분포를 갖는 고밀도 폴리에틸렌으로 제조된 겔 압출 물품

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8333032D0 (en) 1983-12-10 1984-01-18 Bp Chem Int Ltd Orientated polyolefins
DE68913226T2 (de) 1988-04-26 1994-09-29 Showa Denko Kk Verfahren zur Herstellung von Ethylenpolymeren.
DE69422410T2 (de) 1993-08-06 2000-07-06 Exxon Chemical Patents, Inc. Polymerisationskataylsatoren, ihre herstellung und verwendung
US5614456A (en) 1993-11-15 1997-03-25 Mobil Oil Corporation Catalyst for bimodal molecular weight distribution ethylene polymers and copolymers
BE1009186A3 (fr) 1995-03-13 1996-12-03 Solvay Solide catalytique pour la (co)polymerisation d'ethylene, procede pour sa preparation, systeme catalytique pour la (co)polymerisation d'ethylene et procede de (co)polymerisation d'ethylene.
DE59606391D1 (de) * 1995-08-22 2001-03-01 Basf Ag Polymerisate des ethylens mit hoher spannungsrissbeständigkeit und katalysatorsystem für deren herstellung
DE19716239A1 (de) * 1997-04-18 1998-10-22 Basf Ag Verfahren zur Polymerisation von alpha-Olefinen in der Gasphase
GB9712663D0 (en) * 1997-06-16 1997-08-20 Borealis As Process
NO980552D0 (no) * 1998-02-09 1998-02-09 Borealis As Katalysatorbestandel og katalysator for (ko)polymerisering av etylen, og fremgangsmåte for fremstilling av slik
US6013596A (en) * 1998-05-18 2000-01-11 Arco Chemical Technology, L.P. Double metal cyanide catalysts containing cyclic, bidentate complexing agents
EP1127079B1 (en) * 1998-06-16 2005-06-15 Borealis Technology Oy Olefin polymerization process
ES2201821T3 (es) * 1998-12-16 2004-03-16 Borealis Technology Oy Procedimiento en varias etapas para preparar poliolefinas con resistencia elevada en estado fundido.
DE60002056T2 (de) * 1999-02-22 2003-11-06 Borealis Technology Oy, Porvoo Olefinpolymerisationsverfahren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003534428A (ja) * 2000-05-24 2003-11-18 フイリツプス ピトローリアム カンパニー ポリマー組成物の製法

Also Published As

Publication number Publication date
CA2320436A1 (en) 1999-08-12
CN1290272A (zh) 2001-04-04
CA2320436C (en) 2007-08-14
AU740974B2 (en) 2001-11-15
EP1045866B1 (en) 2004-12-01
EP1045866A1 (en) 2000-10-25
NO980552D0 (no) 1998-02-09
AU738712B2 (en) 2001-09-27
DE69922340D1 (de) 2005-01-05
AU2443099A (en) 1999-08-23
WO1999040131A1 (en) 1999-08-12
EP1053264A1 (en) 2000-11-22
US6541581B1 (en) 2003-04-01
DE69922340T2 (de) 2005-11-10
US6780809B1 (en) 2004-08-24
WO1999040126A9 (en) 1999-10-21
BR9907708A (pt) 2000-11-14
CN1132853C (zh) 2003-12-31
CN1290274A (zh) 2001-04-04
JP2002502895A (ja) 2002-01-29
ES2234237T3 (es) 2005-06-16
KR20010040769A (ko) 2001-05-15
ATE283866T1 (de) 2004-12-15
WO1999040126A1 (en) 1999-08-12
AR018078A1 (es) 2001-10-31
AU2443199A (en) 1999-08-23
CA2320271C (en) 2007-07-17
CA2320271A1 (en) 1999-08-12
CN1136241C (zh) 2004-01-28
BR9907702A (pt) 2000-11-14

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