BR9707570A - Sistema catalisador em suporte processo para sua preparacao e uso de sistemas catalisadores - Google Patents
Sistema catalisador em suporte processo para sua preparacao e uso de sistemas catalisadoresInfo
- Publication number
- BR9707570A BR9707570A BR9707570A BR9707570A BR9707570A BR 9707570 A BR9707570 A BR 9707570A BR 9707570 A BR9707570 A BR 9707570A BR 9707570 A BR9707570 A BR 9707570A BR 9707570 A BR9707570 A BR 9707570A
- Authority
- BR
- Brazil
- Prior art keywords
- carbon atoms
- aryl
- alkyl
- metal
- radical
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title abstract 3
- 238000012548 In-process support Methods 0.000 title 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 8
- -1 alkyl radical Chemical class 0.000 abstract 5
- 125000002877 alkyl aryl group Chemical group 0.000 abstract 4
- 125000003710 aryl alkyl group Chemical group 0.000 abstract 4
- 150000005840 aryl radicals Chemical class 0.000 abstract 4
- 229910052739 hydrogen Inorganic materials 0.000 abstract 4
- 239000001257 hydrogen Substances 0.000 abstract 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 4
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 abstract 3
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- 150000001340 alkali metals Chemical class 0.000 abstract 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 2
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 2
- 125000003545 alkoxy group Chemical group 0.000 abstract 2
- 229910052736 halogen Inorganic materials 0.000 abstract 2
- 150000002367 halogens Chemical class 0.000 abstract 2
- 150000002736 metal compounds Chemical class 0.000 abstract 2
- 230000000737 periodic effect Effects 0.000 abstract 2
- 101100379081 Emericella variicolor andC gene Proteins 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 125000004663 dialkyl amino group Chemical group 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; 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
- C08F4/60—Metals; 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
- C08F4/619—Component covered by group C08F4/60 containing a transition metal-carbon bond
- C08F4/61916—Component covered by group C08F4/60 containing a transition metal-carbon bond supported on a carrier, e.g. silica, MgCl2, polymer
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/02—Ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/04—Monomers containing three or four carbon atoms
- C08F110/06—Propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/02—Carriers therefor
- C08F4/025—Metal oxides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; 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
- C08F4/60—Metals; 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
- C08F4/619—Component covered by group C08F4/60 containing a transition metal-carbon bond
- C08F4/61908—Component covered by group C08F4/60 containing a transition metal-carbon bond in combination with an ionising compound other than alumoxane, e.g. (C6F5)4B-X+
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; 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
- C08F4/60—Metals; 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
- C08F4/619—Component covered by group C08F4/60 containing a transition metal-carbon bond
- C08F4/61912—Component covered by group C08F4/60 containing a transition metal-carbon bond in combination with an organoaluminium compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; 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
- C08F4/60—Metals; 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
- C08F4/619—Component covered by group C08F4/60 containing a transition metal-carbon bond
- C08F4/6192—Component covered by group C08F4/60 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
- C08F4/61922—Component covered by group C08F4/60 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S526/943—Polymerization with metallocene catalysts
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)
- Crystallography & Structural Chemistry (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19606167A DE19606167A1 (de) | 1996-02-20 | 1996-02-20 | Geträgerte Katalysatorsysteme |
| PCT/EP1997/000769 WO1997031038A1 (de) | 1996-02-20 | 1997-02-19 | Geträgerte katalysatorsysteme |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9707570A true BR9707570A (pt) | 1999-07-27 |
Family
ID=7785836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9707570A BR9707570A (pt) | 1996-02-20 | 1997-02-19 | Sistema catalisador em suporte processo para sua preparacao e uso de sistemas catalisadores |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US6350829B1 (enExample) |
| EP (1) | EP0882076B1 (enExample) |
| JP (1) | JP2000504775A (enExample) |
| KR (1) | KR100472687B1 (enExample) |
| CN (1) | CN1246345C (enExample) |
| AT (1) | ATE200786T1 (enExample) |
| AU (1) | AU711554B2 (enExample) |
| BR (1) | BR9707570A (enExample) |
| CA (1) | CA2246360A1 (enExample) |
| DE (2) | DE19606167A1 (enExample) |
| ES (1) | ES2156358T3 (enExample) |
| NO (1) | NO983785L (enExample) |
| TW (1) | TW469276B (enExample) |
| WO (1) | WO1997031038A1 (enExample) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998040419A1 (de) * | 1997-03-07 | 1998-09-17 | Targor Gmbh | Verfahren zur herstellung von olefinpolymerisaten mit erhöhtem schmelzpunkt |
| DE19757262A1 (de) * | 1997-12-23 | 1999-07-01 | Targor Gmbh | Verfahren zur Herstellung von Olefinpolymerisaten mit erhöhtem Schmelzpunkt |
| DE19806435A1 (de) | 1998-02-17 | 1999-08-19 | Basf Ag | Verfahren zur Herstellung eines geträgerten Katalysatorsystems |
| DE19811934A1 (de) * | 1998-03-19 | 1999-09-23 | Basf Ag | Ethylencopolymere mit enger Comonomerverteilung |
| DE19828271A1 (de) * | 1998-06-25 | 1999-12-30 | Elenac Gmbh | Verfahren zur Herstellung eines geträgerten Katalysatorsystems |
| DE19957384A1 (de) * | 1999-11-29 | 2001-05-31 | Targor Gmbh | Hochmolekulares Polypropylen mit breiter Molekulargewichtsverteilung und geringer isotaktischer Sequenzlänge |
| WO2001048034A2 (de) | 1999-12-23 | 2001-07-05 | Basell Polyolefine Gmbh | Übergangsmetallverbindung, ligandensystem, katalysatorsystem und seine verwendung zur polymerisation und copolymerisation von olefinen |
| ATE366738T1 (de) | 2000-05-31 | 2007-08-15 | Basell Polyolefine Gmbh | Verfahren zur herstellung von übergangsmetallverbindungen und deren verwendung zur polymerisation von olefinen |
| DE10057009A1 (de) | 2000-11-17 | 2002-05-29 | Celanese Ventures Gmbh | Non-Metallocene, Verfahren zur Herstellung von diesen und deren Verwendung zur Polymerisation von Olefinen |
| CN1491235A (zh) * | 2001-02-17 | 2004-04-21 | 赛拉尼斯温特斯股份有限公司 | 作为催化剂组分的过渡金属化合物及其在生产聚烯烃中的用途 |
| CN1525976A (zh) * | 2001-02-17 | 2004-09-01 | �����ɷ� | 非金属茂、其生产方法及其在烯烃聚合中的用途 |
| DE10130229A1 (de) | 2001-06-22 | 2003-01-02 | Celanese Ventures Gmbh | Non-Metallocene, Verfahren zur Herstellung von diesen und deren Verwendung zur Polymerisation von Olefinen |
| DE10208252A1 (de) | 2002-02-26 | 2003-09-04 | Celanese Ventures Gmbh | Konvalent fixierte Non-Metallocene, Verfahren zur Herstellung von diesen und deren Verwendung zur Polymerisation von Olefinen |
| US7700707B2 (en) | 2002-10-15 | 2010-04-20 | Exxonmobil Chemical Patents Inc. | Polyolefin adhesive compositions and articles made therefrom |
| US7550528B2 (en) | 2002-10-15 | 2009-06-23 | Exxonmobil Chemical Patents Inc. | Functionalized olefin polymers |
| EP1620479B1 (en) | 2002-10-15 | 2013-07-24 | ExxonMobil Chemical Patents Inc. | Polyolefin adhesive compositions and articles made therefrom |
| US7223822B2 (en) | 2002-10-15 | 2007-05-29 | Exxonmobil Chemical Patents Inc. | Multiple catalyst and reactor system for olefin polymerization and polymers produced therefrom |
| US7541402B2 (en) | 2002-10-15 | 2009-06-02 | Exxonmobil Chemical Patents Inc. | Blend functionalized polyolefin adhesive |
| US7285608B2 (en) | 2004-04-21 | 2007-10-23 | Novolen Technology Holdings C.V. | Metallocene ligands, metallocene compounds and metallocene catalysts, their synthesis and their use for the polymerization of olefins |
| US8034886B2 (en) | 2005-11-04 | 2011-10-11 | Ticona Gmbh | Process for manufacturing high to ultra high molecular weight polymers using novel bridged metallocene catalysts |
| US7598329B2 (en) * | 2005-11-04 | 2009-10-06 | Ticona Gmbh | Process for manufacturing ultra high molecular weight polymers using novel bridged metallocene catalysts |
| EP1847555A1 (en) | 2006-04-18 | 2007-10-24 | Borealis Technology Oy | Multi-branched Polypropylene |
| EP2235071A2 (en) | 2007-10-25 | 2010-10-06 | Novolen Technology Holdings, C.V. | Metallocene compounds, catalysts comprising them, process for producing an olefin polymer by use of the catalysts, and olefin homo and copolymers |
| CN101889030B (zh) * | 2007-10-25 | 2013-07-17 | 鲁姆斯诺沃伦技术公司 | 金属茂化合物,含有金属茂化合物的催化剂,使用该催化剂制备烯烃聚合物的方法 |
| RU2476449C2 (ru) | 2007-10-25 | 2013-02-27 | Люммус Новолен Текнолоджи Гмбх | Рацемоселективный синтез анса-металлоценовых соединений, анса-металлоценовые соединения, катализаторы, содержащие их, способ получения олефинового полимера с использованием катализаторов и олефиновые гомо- и сополимеры |
| JP5222544B2 (ja) * | 2007-12-13 | 2013-06-26 | 日本ポリプロ株式会社 | プロピレン（共）重合体の製造方法 |
| SG173101A1 (en) | 2009-01-23 | 2011-08-29 | Evonik Oxeno Gmbh | Film |
| JP5611237B2 (ja) | 2009-01-23 | 2014-10-22 | エボニック デグサ ゲーエムベーハーＥｖｏｎｉｋ Ｄｅｇｕｓｓａ ＧｍｂＨ | Ｐｅ ｍｉｂスラリー重合 |
| WO2010084054A1 (en) | 2009-01-23 | 2010-07-29 | Evonik Oxeno Gmbh | Polyolefin gas phase polymerization with 3-substituted c4-10-alkene |
| GB2498936A (en) | 2012-01-31 | 2013-08-07 | Norner Innovation As | Polyethylene with multi-modal molecular weight distribution |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4912075A (en) | 1987-12-17 | 1990-03-27 | Exxon Chemical Patents Inc. | Method for preparing a supported metallocene-alumoxane catalyst for gas phase polymerization |
| ATE186918T1 (de) | 1990-01-02 | 1999-12-15 | Exxon Chemical Patents Inc | Ionische metallocenkatalysatoren auf träger für olefinpolymerisation |
| WO1992001723A1 (fr) * | 1990-07-24 | 1992-02-06 | Mitsui Toatsu Chemicals, Incorporated | CATALYSEUR POUR POLYMERISATION α-OLEFINIQUE ET PRODUCTION D'UNE POLY-α-OLEFINE A L'AIDE DE CE CATALYSEUR |
| EP0522581B1 (en) * | 1991-07-11 | 1997-10-15 | Idemitsu Kosan Company Limited | Process for producing olefin based polymers and olefin polymerization catalyst |
| ES2167336T3 (es) | 1992-08-05 | 2002-05-16 | Exxonmobil Chem Patents Inc | Catalizadores ionicos soportados de metal de transicion para la polimerizacion de olefinas. |
| JP3202349B2 (ja) | 1992-09-22 | 2001-08-27 | 三菱化学株式会社 | 触媒組成物およびそれを用いるオレフィンの重合法 |
| BE1006880A3 (fr) | 1993-03-01 | 1995-01-17 | Solvay | Precurseur solide d'un systeme catalytique pour la polymerisation d'olefines, procede pour sa preparation, systeme catalytique comprenant ce precurseur solide et procede de polymerisation d'olefines en presence de ce systeme catalytique. |
| DE69403928T2 (de) * | 1993-04-09 | 1997-12-18 | Tosoh Corp | Katalysator und Verfahren zur Olefin-Polymerisation |
| JP2882241B2 (ja) * | 1993-06-07 | 1999-04-12 | 東ソー株式会社 | オレフィン重合用触媒およびオレフィンの重合方法 |
| DE69431222T2 (de) * | 1993-06-07 | 2003-04-17 | Mitsui Chemicals, Inc. | Übergangsmetallverbindung, und diese enthaltender Polymerisationkatalysator |
| US5422325A (en) * | 1993-09-17 | 1995-06-06 | Exxon Chemical Patents Inc. | Supported polymerization catalysts, their production and use |
| EP0729477B1 (en) * | 1993-11-19 | 1999-10-27 | Exxon Chemical Patents Inc. | Polymerization catalyst systems, their production and use |
| US5498582A (en) * | 1993-12-06 | 1996-03-12 | Mobil Oil Corporation | Supported metallocene catalysts for the production of polyolefins |
| DE4431838A1 (de) * | 1994-09-07 | 1996-03-14 | Basf Ag | Geträgerte Metallocen-Katalysatorsysteme |
| DE4431837A1 (de) * | 1994-09-07 | 1996-03-14 | Basf Ag | Geträgerte Metallocen-Katalysatorsysteme |
-
1996
- 1996-02-20 DE DE19606167A patent/DE19606167A1/de not_active Withdrawn
-
1997
- 1997-02-19 KR KR10-1998-0706452A patent/KR100472687B1/ko not_active Expired - Fee Related
- 1997-02-19 AU AU17919/97A patent/AU711554B2/en not_active Ceased
- 1997-02-19 CN CNB971924007A patent/CN1246345C/zh not_active Expired - Fee Related
- 1997-02-19 CA CA002246360A patent/CA2246360A1/en not_active Abandoned
- 1997-02-19 DE DE59703436T patent/DE59703436D1/de not_active Expired - Lifetime
- 1997-02-19 TW TW086101973A patent/TW469276B/zh active
- 1997-02-19 ES ES97903319T patent/ES2156358T3/es not_active Expired - Lifetime
- 1997-02-19 JP JP9529783A patent/JP2000504775A/ja active Pending
- 1997-02-19 US US09/125,377 patent/US6350829B1/en not_active Expired - Fee Related
- 1997-02-19 BR BR9707570A patent/BR9707570A/pt not_active IP Right Cessation
- 1997-02-19 AT AT97903319T patent/ATE200786T1/de not_active IP Right Cessation
- 1997-02-19 WO PCT/EP1997/000769 patent/WO1997031038A1/de not_active Ceased
- 1997-02-19 EP EP97903319A patent/EP0882076B1/de not_active Expired - Lifetime
-
1998
- 1998-08-19 NO NO983785A patent/NO983785L/no not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE200786T1 (de) | 2001-05-15 |
| NO983785L (no) | 1998-10-19 |
| TW469276B (en) | 2001-12-21 |
| EP0882076B1 (de) | 2001-04-25 |
| JP2000504775A (ja) | 2000-04-18 |
| EP0882076A1 (de) | 1998-12-09 |
| AU1791997A (en) | 1997-09-10 |
| US6350829B1 (en) | 2002-02-26 |
| AU711554B2 (en) | 1999-10-14 |
| WO1997031038A1 (de) | 1997-08-28 |
| CN1246345C (zh) | 2006-03-22 |
| DE59703436D1 (de) | 2001-05-31 |
| KR100472687B1 (ko) | 2005-05-16 |
| CA2246360A1 (en) | 1997-08-28 |
| DE19606167A1 (de) | 1997-08-21 |
| NO983785D0 (no) | 1998-08-19 |
| CN1211996A (zh) | 1999-03-24 |
| KR19990087066A (ko) | 1999-12-15 |
| ES2156358T3 (es) | 2001-06-16 |
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