DK0652922T3 - Mineralske additiver til indstlling og/eller regulering af de rheologiske egenskaber og gelstrukturen af vandige væsker samt anvendelsen af sådanne additiver - Google Patents
Mineralske additiver til indstlling og/eller regulering af de rheologiske egenskaber og gelstrukturen af vandige væsker samt anvendelsen af sådanne additiverInfo
- Publication number
- DK0652922T3 DK0652922T3 DK93915954.7T DK93915954T DK0652922T3 DK 0652922 T3 DK0652922 T3 DK 0652922T3 DK 93915954 T DK93915954 T DK 93915954T DK 0652922 T3 DK0652922 T3 DK 0652922T3
- Authority
- DK
- Denmark
- Prior art keywords
- pct
- additives
- regulation
- adjustment
- rheological properties
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/32—Non-aqueous well-drilling compositions, e.g. oil-based
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/05—Aqueous well-drilling compositions containing inorganic compounds only, e.g. mixtures of clay and salt
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/14—Clay-containing compositions
- C09K8/16—Clay-containing compositions characterised by the inorganic compounds other than clay
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
- C10M125/10—Metal oxides, hydroxides, carbonates or bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
- C10M125/26—Compounds containing silicon or boron, e.g. silica, sand
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/02—Water
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/087—Boron oxides, acids or salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
- C10M2201/103—Clays; Mica; Zeolites
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/105—Silica
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/01—Emulsions, colloids, or micelles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Detergent Compositions (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Cosmetics (AREA)
- Dental Preparations (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4224537A DE4224537A1 (de) | 1992-07-27 | 1992-07-27 | Mineralische Additive zur Einstellung und/oder Regelung der Rheologie und Gelstruktur wässriger Flüssigphasen und ihre Verwendung |
Publications (1)
Publication Number | Publication Date |
---|---|
DK0652922T3 true DK0652922T3 (da) | 1998-05-11 |
Family
ID=6464043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK93915954.7T DK0652922T3 (da) | 1992-07-27 | 1993-07-19 | Mineralske additiver til indstlling og/eller regulering af de rheologiske egenskaber og gelstrukturen af vandige væsker samt anvendelsen af sådanne additiver |
Country Status (11)
Country | Link |
---|---|
US (1) | US5663122A (da) |
EP (1) | EP0652922B1 (da) |
AT (1) | ATE158611T1 (da) |
AU (1) | AU675656B2 (da) |
CA (1) | CA2141299A1 (da) |
DE (2) | DE4224537A1 (da) |
DK (1) | DK0652922T3 (da) |
ES (1) | ES2106356T3 (da) |
MY (1) | MY109232A (da) |
NO (1) | NO944292D0 (da) |
WO (1) | WO1994002566A1 (da) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2285074B (en) * | 1993-12-17 | 1998-03-25 | Pumptech Nv | Drilling fluid |
DE4420455A1 (de) * | 1994-06-13 | 1995-12-14 | Henkel Kgaa | Lineare alpha-Olefine enthaltende fließfähige Bohrlochbehandlungsmittel insbesondere entsprechende Bohrspülungen |
DE19727541A1 (de) * | 1997-06-28 | 1999-01-07 | Sueddeutsche Kalkstickstoff | Feststoff-Zusammensetzung auf Basis von Tonmineralien und deren Verwendung |
DE19909817C2 (de) * | 1998-09-30 | 2002-12-05 | Fitr Ges Fuer Innovation Im Ti | Verfahren zum Verfestigen schadstoffhaltiger flüssiger bis pastöser Anfallstoffe |
DE19933176A1 (de) * | 1999-07-15 | 2001-01-18 | Sueddeutsche Kalkstickstoff | Verfahren zur Rheologiesteuerung von Flüssigphasen |
US6365639B1 (en) * | 2000-01-06 | 2002-04-02 | Edgar Franklin Hoy | Rheology, modified compositions exhibiting stress-dependent fluidity, modification agents therefor, and methods of making same |
DE10003793A1 (de) * | 2000-01-28 | 2001-09-06 | Febbex Ag Steinsel | Verfahren und Löschmittel zum Löschen eines Öl- und/oder Fettbrandes |
DE10041394A1 (de) * | 2000-08-23 | 2002-03-07 | Stockhausen Chem Fab Gmbh | Verwendung von Wasser-in-Wasser-Polymerdispersionen zur Feuerverhütung und -bekämpfung |
BR0207676A (pt) * | 2001-02-28 | 2004-03-09 | Edgar Franklin Hoy | Composições hidrófobas modificadas reologicamente, agentes de modificação e processos de fabricação |
DE10118020A1 (de) * | 2001-04-10 | 2002-10-17 | Stockhausen Chem Fab Gmbh | Löschwasser-Additive |
GB2378716B (en) * | 2001-08-08 | 2004-01-14 | Mi Llc | Process fluid |
DE10243312A1 (de) * | 2002-09-18 | 2004-04-01 | Cognis Deutschland Gmbh & Co. Kg | Bohrlochbehandlungsmittel mit niedrig-toxischer Ölphase |
DE10334441A1 (de) * | 2003-07-29 | 2005-02-17 | Cognis Deutschland Gmbh & Co. Kg | Bohrlochbehandlungsmittel, enthaltend Ethercarbonsäuren |
US20050080145A1 (en) * | 2003-10-09 | 2005-04-14 | Hoy Edgar Franklin | Method and compositions for rheology modification of aqueous soluble salt solutions |
DE10349808A1 (de) * | 2003-10-24 | 2005-05-25 | Cognis Deutschland Gmbh & Co. Kg | Emulgatoren für Bohrspülmittel |
DE102004034141A1 (de) * | 2004-07-15 | 2006-02-09 | Cognis Ip Management Gmbh | Verwendung von Lithiumsalzen von Fettalkoholsulfaten zum Reinigen von Bohrlöchern, Bohrgeräten oder Bohrklein |
US7163642B2 (en) * | 2004-10-11 | 2007-01-16 | Hagquist James Alroy E | Composition inhibiting the expansion of fire, suppressing existing fire, and methods of manufacture and use thereof |
DE102005055701A1 (de) * | 2005-11-23 | 2007-05-24 | Basf Construction Polymers Gmbh | Verwendung mehrwertiger Metallsalze zur Stabilisierung der Rheologie von Flüssigphasen |
EP2036963A1 (de) * | 2007-09-14 | 2009-03-18 | Cognis Oleochemicals GmbH | Schmiermitteladditive für Bohrspülmittel |
EP2036962A1 (de) * | 2007-09-14 | 2009-03-18 | Cognis Oleochemicals GmbH | Additive für wasserbasierte Bohrspülmittel |
EP2036964A1 (de) * | 2007-09-14 | 2009-03-18 | Cognis Oleochemicals GmbH | Verdicker für ölbasierte Bohrspülmittel |
EP2053111B1 (en) | 2007-10-24 | 2016-12-07 | Emery Oleochemicals GmbH | Drilling composition, process for its preparation and applications thereof |
DE102008008251A1 (de) * | 2008-02-08 | 2009-08-20 | Cognis Oleochemicals Gmbh | Vernetzte Glycerin- oder Oligoglycerinester und deren Verwendung als Additiv in Bohrspülungen |
BRPI0921448A2 (pt) * | 2008-11-23 | 2018-05-29 | Albemarle Corp | retardantes de chama, métodos para seu preparo e seu uso como retardantes de chama |
WO2011041243A2 (en) | 2009-09-30 | 2011-04-07 | Earthclean Corporation | Fire suppression biodegradable suspension forming compositions |
US8961838B2 (en) | 2010-04-05 | 2015-02-24 | Earthclean Corporation | Non-aqueous fire suppressing liquid concentrate |
DE102010050917A1 (de) | 2010-11-11 | 2012-05-16 | Emery Oleochemicals Gmbh | Verfahren zur Herstellung von Carbonsäureestern während eines Transports |
EP3024910B1 (en) | 2013-10-31 | 2018-12-12 | Amril AG | Environmental friendly well treatment fluids comprising an ester |
US10557335B2 (en) | 2014-01-24 | 2020-02-11 | Schlumberger Technology Corporation | Gas fracturing method and system |
US10041300B2 (en) * | 2014-05-15 | 2018-08-07 | Halliburton Energy Services, Inc. | Organo-clay free invert emulsion fluids |
BR112017012403A2 (pt) | 2015-01-07 | 2017-12-26 | Emery Oleochemicals Gmbh | composição e uso de éter ácido monocarboxílico, amida, sal ou éster do mesmo |
RU2017119764A (ru) | 2015-01-07 | 2019-02-08 | Эмери Олеокемикалс Гмбх | Новые добавки для нефтепромысловых и промышленных применений |
CN109312224B (zh) | 2016-06-07 | 2021-06-15 | 沙特阿拉伯石油公司 | 具有改良的粘度的凝胶化烃系统 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2744869A (en) * | 1953-11-23 | 1956-05-08 | Shell Dev | Drilling fluid for high-temperature wells |
GB1213122A (en) * | 1966-09-12 | 1970-11-18 | Laporte Industries Ltd | Clays |
DE2424763C3 (de) * | 1974-05-22 | 1978-08-24 | Denki Kagaku Kogyo K.K., Tokio | Feuerhemmende Harzmasse |
DE3144770A1 (de) * | 1981-11-11 | 1983-05-19 | Cassella Ag, 6000 Frankfurt | Wasserloesliches copolymerisat, seine herstellung und verwendung |
DE3306822C2 (de) * | 1983-02-26 | 1985-01-03 | Giulini Chemie Gmbh, 6700 Ludwigshafen | Kristallines, basisches Aluminium-Magnesium-Carbonat |
US4540496A (en) * | 1983-03-25 | 1985-09-10 | Exxon Research & Engineering Company | Intramolecular polymer complexes - viscosifiers for high ionic strength drilling fluids |
DE3404491A1 (de) * | 1984-02-09 | 1985-08-14 | Wolff Walsrode Ag, 3030 Walsrode | Wasserloesliche polymerisate und deren verwendung als bohrspueladditive |
US4664843A (en) * | 1985-07-05 | 1987-05-12 | The Dow Chemical Company | Mixed metal layered hydroxide-clay adducts as thickeners for water and other hydrophylic fluids |
US5232627A (en) * | 1985-07-05 | 1993-08-03 | The Dow Chemical Company | Adducts of clay and activated mixed metal oxides |
DE3631764A1 (de) * | 1986-09-18 | 1988-03-24 | Henkel Kgaa | Verwendung von quellfaehigen, synthetischen schichtsilikaten in waessrigen bohrspuel- und bohrlochbehandlungsmitteln |
US4780220A (en) * | 1987-05-26 | 1988-10-25 | Hydra Fluids, Inc. | Drilling and completion fluid |
US4830765A (en) * | 1987-12-04 | 1989-05-16 | Baker Hughes Incorporated | Modified non-polluting liquid phase shale swelling inhibition drilling fluid and method of using same |
DE3914916A1 (de) * | 1989-05-06 | 1990-11-08 | Henkel Kgaa | Mittel zum viskositaetsaufbau in nichtwaessrigen fluessigphasen, verfahren zu ihrer herstellung und ihre verwendung |
DE3915876A1 (de) * | 1989-05-16 | 1990-11-22 | Henkel Kgaa | Verwendung ausgewaehlter esteroele in wasser-basierten bohrspuelungen vom o/w-emulsionstyp sowie entsprechende bohrspuelfluessigkeiten mit verbesserter oekologischer vertraeglichkeit |
DE3915875A1 (de) * | 1989-05-16 | 1990-11-22 | Henkel Kgaa | Verwendung ausgewaehlter oleophiler alkohole in wasser-basierten bohrspuelungen vom o/w-emulsionstyp sowie entsprechende bohrspuelfluessigkeiten mit verbesserter oekologischer vertraeglichkeit |
DE3916550A1 (de) * | 1989-05-20 | 1990-11-22 | Henkel Kgaa | Verwendung ausgewaehlter oleophiler ether in wasser-basierten bohrspuelungen vom o/w-emulsionstyp sowie entsprechende bohrspuelfluessigkeiten mit verbesserter oekologischer vertraeglichkeit |
DE4018228A1 (de) * | 1990-06-07 | 1991-12-12 | Henkel Kgaa | Fliessfaehige bohrlochbehandlungsmittel auf basis von kohlensaeurediestern |
DE4019266A1 (de) * | 1990-06-16 | 1992-01-23 | Henkel Kgaa | Fliessfaehige bohrlochbehandlungsmittel auf basis von polycarbonsaeureestern |
CA2043783A1 (en) * | 1991-02-28 | 1992-08-29 | Lindsay J. Fraser | Pseudoplastic mixed metal layered hydroxide fluid with fluid loss additive and method of use in penetrating the earth |
-
1992
- 1992-07-27 DE DE4224537A patent/DE4224537A1/de not_active Withdrawn
-
1993
- 1993-07-19 DE DE59307435T patent/DE59307435D1/de not_active Expired - Fee Related
- 1993-07-19 AU AU45708/93A patent/AU675656B2/en not_active Ceased
- 1993-07-19 US US08/374,556 patent/US5663122A/en not_active Expired - Lifetime
- 1993-07-19 WO PCT/EP1993/001902 patent/WO1994002566A1/de active IP Right Grant
- 1993-07-19 CA CA002141299A patent/CA2141299A1/en not_active Abandoned
- 1993-07-19 DK DK93915954.7T patent/DK0652922T3/da active
- 1993-07-19 AT AT93915954T patent/ATE158611T1/de not_active IP Right Cessation
- 1993-07-19 ES ES93915954T patent/ES2106356T3/es not_active Expired - Lifetime
- 1993-07-19 EP EP93915954A patent/EP0652922B1/de not_active Expired - Lifetime
- 1993-07-23 MY MYPI93001452A patent/MY109232A/en unknown
-
1994
- 1994-11-10 NO NO944292A patent/NO944292D0/no unknown
Also Published As
Publication number | Publication date |
---|---|
AU675656B2 (en) | 1997-02-13 |
EP0652922B1 (de) | 1997-09-24 |
EP0652922A1 (de) | 1995-05-17 |
ES2106356T3 (es) | 1997-11-01 |
NO944292L (no) | 1994-11-10 |
DE4224537A1 (de) | 1994-02-03 |
US5663122A (en) | 1997-09-02 |
NO944292D0 (no) | 1994-11-10 |
AU4570893A (en) | 1994-02-14 |
WO1994002566A1 (de) | 1994-02-03 |
ATE158611T1 (de) | 1997-10-15 |
CA2141299A1 (en) | 1994-02-03 |
MY109232A (en) | 1996-12-31 |
DE59307435D1 (de) | 1997-10-30 |
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