ES2154417T3 - Polimeros del etileno con una elevada resistencia a la fisuracion por tensiones y un sistema catalizador para su obtencion. - Google Patents
Polimeros del etileno con una elevada resistencia a la fisuracion por tensiones y un sistema catalizador para su obtencion.Info
- Publication number
- ES2154417T3 ES2154417T3 ES96927701T ES96927701T ES2154417T3 ES 2154417 T3 ES2154417 T3 ES 2154417T3 ES 96927701 T ES96927701 T ES 96927701T ES 96927701 T ES96927701 T ES 96927701T ES 2154417 T3 ES2154417 T3 ES 2154417T3
- Authority
- ES
- Spain
- Prior art keywords
- alkyl
- aryl
- hydrogen
- groups
- catalyst system
- 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.)
- Expired - Lifetime
Links
- 239000003054 catalyst Substances 0.000 title abstract 2
- 229920000573 polyethylene Polymers 0.000 title 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 4
- 239000001257 hydrogen Substances 0.000 abstract 4
- 125000003837 (C1-C20) alkyl group Chemical group 0.000 abstract 3
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 abstract 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 2
- 239000005977 Ethylene Substances 0.000 abstract 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 125000001424 substituent group Chemical group 0.000 abstract 2
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 abstract 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical group [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052794 bromium Inorganic materials 0.000 abstract 1
- 229910052799 carbon Chemical group 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 125000000753 cycloalkyl group Chemical group 0.000 abstract 1
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical group FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052731 fluorine Inorganic materials 0.000 abstract 1
- 239000011737 fluorine Substances 0.000 abstract 1
- 229910052732 germanium Inorganic materials 0.000 abstract 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical group [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 abstract 1
- -1 iodine, hydrogen Chemical class 0.000 abstract 1
- 229910052747 lanthanoid Inorganic materials 0.000 abstract 1
- 150000002602 lanthanoids Chemical class 0.000 abstract 1
- 125000002524 organometallic group Chemical group 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 239000011990 phillips catalyst Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
- 230000007704 transition Effects 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
-
- 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
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
-
- 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
- C08F4/61904—Component covered by group C08F4/60 containing a transition metal-carbon bond in combination with another component of C08F4/60
-
- 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
- C08F4/61925—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 two cyclopentadienyl rings being mutually non-bridged
-
- 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)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
POLIMERO DE ETILENO QUE SE PUEDE OBTENER POR POLIMERIZACION DE ETILENO Y OPCIONALMENTE OTROS COMONOMEROS EN PRESENCIA DE UN SISTEMA CATALIZADOR QUE CONTIENE COMO COMPONENTES ACTIVOS I) UN CATALIZADOR PHILLIPS, II) UN SOLIDO DISTINTO DE I), QUE CONTIENE UN COMPONENTE, QUE DERIVA DE COMPLEJOS DE METALOCENO DE FORMULA GENERAL (A), EN LA CUAL LOS SUSTITUYENTES E INDICES TIENEN EL SIGUIENTE SIGNIFICADO: R SUP,1} A R SUP,10} SON HIDROGENO, ALQUILO C SUB,1} A C SUB,10}, CICLOALQUILO DE 5 A 7 ESLABONES, QUE A SU VEZ PUEDE LLEVAR GRUPOS ALQUILO C SUB,1} A C SUB,6} COMO SUSTITUYENTES, ARILO C SUB,6} A C SUB,15} O ARILALQUILO Y DONDE OPCIONALMENTE TAMBIEN 2 RESTOS ADYACENTES PUEDEN SER JUNTOS GRUPOS CICLICOS QUE PRESENTAN ENTRE 4 Y 15 ATOMOS DE C O SI(R SUP,11}) SUB,3} SIENDO R SUP,11} ALQUILO C SUB,1} A C SUB,10}, ARILO C SUB,6} A C SUB,15} O CICLOALQUILO C SUB,3} A C SUB,10}, O DONDE LOS RESTOS R SUB,4} Y R SUB,9} FORMAN JUNTOS UN GRUPO -[Y(R SUP,12}R SUP,13}] SUB,M}-, SIENDO Y SILICIO, GERMANIO, ZINC O CARBONO, R SUP,12} Y R SUP,13} SON HIDROGENO, ALQUILO C SUB,1} A C SUB,10}, CICLOALQUILO C SUB,3} A C SUB,10} O ARILO C SUB,6} A C SUB,15}, M ES UN METAL DEL GRUPO DE TRANSICION IV A VIII O UN METAL DE LA SERIE DE LOS LANTANIDOS, Z SUP,1} Y Z SUP,2} ES FLUOR, CLORO, BROMO, YODO, HIDROGENO, UN RESTO ALQUILO C SUB,1} A C SUB,20} O UN RESTO ARILO, -OR SUP,14}, -OOCR SUP,14}, (A), (B) O (C), SIENDO R SUP,14} HIDROGENO O ALQUILO C SUP,1} A C SUP,20}, R SUP,15} ES ALQUILO C SUB,1} A C SUB,20}, M ES 1, 2, 3 O 4, N ES 0, 1 O 2, R ES 0, 1 O 2, DONDE LA SUMA DE N + R ES ASIMISMO 0, 1 O 2 Y OPCIONALMENTE III) ES UN COMPONENTE ORGANOMETALICO SELECCIONADO ENTRE LOS GRUPOS IA, IIA, IIB Y IIIA DEL SISTEMA PERIODICO DE LOS ELEMENTOS.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19530766 | 1995-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2154417T3 true ES2154417T3 (es) | 2001-04-01 |
Family
ID=7770039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES96927701T Expired - Lifetime ES2154417T3 (es) | 1995-08-22 | 1996-08-07 | Polimeros del etileno con una elevada resistencia a la fisuracion por tensiones y un sistema catalizador para su obtencion. |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6180731B1 (es) |
| EP (1) | EP0846131B1 (es) |
| JP (2) | JP4224134B2 (es) |
| KR (2) | KR100440847B1 (es) |
| CN (1) | CN1135240C (es) |
| AT (1) | ATE198898T1 (es) |
| CA (1) | CA2227248A1 (es) |
| DE (1) | DE59606391D1 (es) |
| ES (1) | ES2154417T3 (es) |
| WO (1) | WO1997008213A1 (es) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO960350A (no) † | 1996-01-26 | 1997-04-28 | Borealis As | Fremgangsmåte og katalysatorsystem for polymerisering av etylen, eventuelt sammen med <alfa>-olefiner, og fremstilt polymermateriale |
| 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 |
| US6274684B1 (en) | 1999-10-22 | 2001-08-14 | Univation Technologies, Llc | Catalyst composition, method of polymerization, and polymer therefrom |
| US7041617B2 (en) * | 2004-01-09 | 2006-05-09 | Chevron Phillips Chemical Company, L.P. | Catalyst compositions and polyolefins for extrusion coating applications |
| DE10034191A1 (de) * | 2000-07-13 | 2002-01-24 | Basell Polyolefine Gmbh | Kunststoffhohlkörper aus hochdichten Polyolefinen hergestellt mit einem fluormodifizierten Chrom-Katalysator |
| US7244795B2 (en) * | 2003-12-08 | 2007-07-17 | Univation Technologies, Llc | Polymerization process using metallocene catalyst systems |
| US7119153B2 (en) * | 2004-01-21 | 2006-10-10 | Jensen Michael D | Dual metallocene catalyst for producing film resins with good machine direction (MD) elmendorf tear strength |
| CA2585199C (en) * | 2004-11-04 | 2013-01-08 | Chevron Phillips Chemical Company, L.P. | Organochromium/metallocene combination catalyst for producing bimodal resins |
| US7163906B2 (en) | 2004-11-04 | 2007-01-16 | Chevron Phillips Chemical Company, Llp | Organochromium/metallocene combination catalysts for producing bimodal resins |
| DE102005019393A1 (de) | 2005-04-25 | 2006-10-26 | Basell Polyolefine Gmbh | Polyethylenformmassen für Spritzgussanwendungen |
| 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 |
| CA2605044C (en) * | 2007-10-01 | 2014-12-02 | Nova Chemicals Corporation | Polymerization process using a mixed catalyst system |
| CN110878130B (zh) * | 2018-09-06 | 2023-04-07 | 中国石油化工股份有限公司 | 负载型铬和茂双金属催化剂、其制备方法及其应用 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2540279C2 (de) | 1975-09-10 | 1987-02-05 | Basf Ag, 6700 Ludwigshafen | Verfahren zum Herstellen eines Katalysators für die Polymerisation von Olefinen |
| US4284527A (en) | 1978-06-19 | 1981-08-18 | Chemplex Company | Polymerization catalyst |
| US4424139A (en) * | 1982-03-30 | 1984-01-03 | Phillips Petroleum Company | Catalyst comprising a phosphate and with a bis-(cyclopentadienyl)chromium(II) compound |
| US4806513A (en) | 1984-05-29 | 1989-02-21 | Phillips Petroleum Company | Silicon and fluorine-treated alumina containing a chromium catalyst and method of producing same |
| EP0284708B1 (en) | 1987-04-03 | 1996-01-31 | Fina Technology, Inc. | Metallocene catalyst systems for olefin polymerization having a silicon hydrocarbyl bridge. |
| US5198400A (en) | 1987-05-20 | 1993-03-30 | Quantum Chemical Corporation | Mixed chromium catalysts and polymerizations utilizing same |
| DE68913226T2 (de) | 1988-04-26 | 1994-09-29 | Showa Denko Kk | Verfahren zur Herstellung von Ethylenpolymeren. |
| CA2078366A1 (en) | 1991-09-18 | 1993-03-19 | Joel L. Martin | Polyethylene blends |
| US5399622A (en) * | 1993-11-17 | 1995-03-21 | Phillips Petroleum Company | System of chromium catalyst and yttrium catalyst, olefin polymerization process, and polymer |
| US5543376A (en) * | 1994-02-25 | 1996-08-06 | Phillips Petroleum Company | Process for producing polyolefins |
| US5624877A (en) * | 1994-02-25 | 1997-04-29 | Phillips Petroleum Company | Process for producing polyolefins |
| US5714424A (en) * | 1995-01-09 | 1998-02-03 | W. R. Grace & Co.-Conn. | Multi-component polyolefin catalysts |
-
1996
- 1996-08-07 CA CA002227248A patent/CA2227248A1/en not_active Abandoned
- 1996-08-07 KR KR10-2004-7000977A patent/KR100440847B1/ko not_active Expired - Fee Related
- 1996-08-07 ES ES96927701T patent/ES2154417T3/es not_active Expired - Lifetime
- 1996-08-07 US US09/000,011 patent/US6180731B1/en not_active Expired - Fee Related
- 1996-08-07 KR KR10-1998-0701286A patent/KR100437987B1/ko not_active Expired - Fee Related
- 1996-08-07 EP EP96927701A patent/EP0846131B1/de not_active Revoked
- 1996-08-07 AT AT96927701T patent/ATE198898T1/de not_active IP Right Cessation
- 1996-08-07 CN CNB961964618A patent/CN1135240C/zh not_active Expired - Fee Related
- 1996-08-07 DE DE59606391T patent/DE59606391D1/de not_active Expired - Fee Related
- 1996-08-07 WO PCT/EP1996/003492 patent/WO1997008213A1/de not_active Ceased
- 1996-08-07 JP JP50976797A patent/JP4224134B2/ja not_active Expired - Fee Related
-
2008
- 2008-05-01 JP JP2008119595A patent/JP2008231434A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0846131B1 (de) | 2001-01-24 |
| JP4224134B2 (ja) | 2009-02-12 |
| JPH11511488A (ja) | 1999-10-05 |
| CN1193984A (zh) | 1998-09-23 |
| US6180731B1 (en) | 2001-01-30 |
| ATE198898T1 (de) | 2001-02-15 |
| JP2008231434A (ja) | 2008-10-02 |
| KR100440847B1 (ko) | 2004-07-19 |
| CA2227248A1 (en) | 1997-03-06 |
| KR100437987B1 (ko) | 2004-08-16 |
| WO1997008213A1 (de) | 1997-03-06 |
| KR20040014672A (ko) | 2004-02-14 |
| CN1135240C (zh) | 2004-01-21 |
| KR19990044053A (ko) | 1999-06-25 |
| DE59606391D1 (de) | 2001-03-01 |
| EP0846131A1 (de) | 1998-06-10 |
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| FG2A | Definitive protection |
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