EP0909309B1 - Schmiermittel und dessen verwendung - Google Patents
Schmiermittel und dessen verwendung Download PDFInfo
- Publication number
- EP0909309B1 EP0909309B1 EP97927005A EP97927005A EP0909309B1 EP 0909309 B1 EP0909309 B1 EP 0909309B1 EP 97927005 A EP97927005 A EP 97927005A EP 97927005 A EP97927005 A EP 97927005A EP 0909309 B1 EP0909309 B1 EP 0909309B1
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- EP
- European Patent Office
- Prior art keywords
- weight
- lubricant
- orthophosphate
- lubricant according
- primary
- Prior art date
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- C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
- C10M125/24—Compounds containing phosphorus, arsenic or antimony
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- C10M103/00—Lubricating compositions characterised by the base-material being an inorganic material
- C10M103/02—Carbon; Graphite
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- C10M103/06—Metal compounds
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- C10M125/26—Compounds containing silicon or boron, e.g. silica, sand
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- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
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- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
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Definitions
- Lubricants used in the hot forming of metals have long been known.
- Such lubricants consist for example of mixtures of graphite and mineral oil. Such mixtures decompose at the usual application temperatures of 1100 to 1300 ° C and result in a strong environmental impact.
- Lubricants used in the manufacture of seamless pipes for lubrication called Dome poles must meet special requirements and therefore exist made of graphite and mixtures of substances that provide these special properties. So describes DE-B-2 450 716 a high-temperature lubricant made from 10 to 90% graphite, 2 to 60% Alkylene polymer or copolymer, 0.2 to 8% suspension aid and 2 to 40% Film stabilizer.
- EP-A-0 554 822 describes a lubricant which contains one or more graphite several clay minerals from the smectite class as well as polysaccharide and one non-ionic Contains surfactant.
- EP-A-0 164 637 describes a high-temperature lubricant for non-cutting Hot forming of metals, 10 to 90% by weight graphite as a solid lubricant, 10 to 80% by weight contains inorganic additive and 0.2 to 4% by weight of organic stabilizing agent.
- the inorganic Additive consists of 0.2 to 25% by weight boric acid, 0.2 to 98.8% by weight polyphosphate and 1 up to 99.6% by weight alkali silicate.
- the lubricant is in the form of a 5 to 50% by weight dispersion applied.
- the lubricants known to date contain organic and thus decomposable Substances and / or additives that the later wastewater, for example, by Strongly contaminate sludge formation and thus represent a major environmental burden.
- the object underlying the invention was therefore a lubricant, in particular is usable as dome lubricant to get that in addition to graphite essentially contains as few organic substances as possible and the least possible harm to the environment regarding wastewater pollution.
- this object is achieved with a lubricant with a content of 75 to 90 % By weight of graphite and 1 to 10% by weight of phosphates, which is characterized in that it as phosphates, a phosphate mixture of tetrasodium diphosphate, primary zinc orthophosphate, contains primary manganese orthophosphate, disodium dihydrogen diphosphate and potassium polyphosphate.
- lubricants according to the invention do not contain any organic substances need to contain and preferably contain no organic substances at all, so that the graphite is the only decomposable component. So they preferably contain only inorganic Fabrics.
- Graphite which has the main lubricating effect of such lubricants, exists Made of pure carbon, which is used at high application temperatures in an oxygen-containing environment burns, producing carbon dioxide, which creates a gas cushion on which in the first place the separation of tube and dome rod is based
- the other ingredients in the lubricant have the task of creating an even lubricating film to produce a quick drying of the lubricating film and damage the Avoid mandrel rod or the inner surface of the pipe.
- These tasks are invented primarily solved by the phosphates, which, at the high application facet temperatures, form reactive melt, which is able to scale and similar contaminants solve and thus avoid their harmful effects.
- the lubricants according to the invention preferably contain 85 to 90% by weight of graphite and advantageously 3 to 5% by weight of phosphates.
- the phosphate mixture 25 to 50 preferably 33 to 43 %
- tetrasodium diphosphate 1 to 20, preferably 3 to 11% by weight of primary zinc orthophosphate, 0.5 to 20, preferably 1 to 10% by weight of primary manganese orthophosphate, 2 to 25, preferably 5 to 15% by weight disodium dihydrogen diphasphate and 8 to 35, preferably 15 up to 25% by weight of potassium polyphosphate
- a fine-tuned phosphate mixture for this purpose contains about 38% by weight tetrasodium diphosphate, about 7% by weight primary zinc orthophosphate, about 5% by weight of primary manganese orthophosphate, about 10% by weight of disodium dihydrogen drug diphosphate and about 20% by weight potassium polyphosphate.
- the phosphate mixture added to the lubricant as phosphates additionally 5 to 25, preferably 10 to 20% by weight of boric acid and / or 0.5 to 15, preferably 1 up to 10% by weight of hydroxyapatite.
- the fine-tuned phosphate blend listed above contains of which expedient about 15% by weight of boric acid and about 5% by weight of hydroxyapatite.
- Lubricants expediently 1 to 4, preferably 2 to 2.5 wt.% Alkali silicate, in particular
- the latter percentages relate to the total weight of the solids content of the lubricant according to the invention, while the percentages of the phosphate mixture including those of boric acid and the hydroxyapatite relate to the total weight of the solids only of the phosphate mixture alone.
- sodium silicate it is expedient to use one with a ratio of SiO 2 : Na 2 O of 2.
- the silicophosphate used advantageously contains about 22% SiO 2 and about 54% P 2 O 5 .
- the mandrel lubricants according to the invention are preferred as aqueous suspensions with a solids content of 20 to 40% by weight, preferably 25 to 35% by weight.
- the lubricant is applied in the usual way by spraying the suspension the mandrel bar after it has left the cooling bath and transported back to the rolling process becomes.
- the lubricants according to the invention can expediently additionally contain customary solid lubricants, such as calcium fluoride, cryolite, antimony trioxide, molybdenum sulfide, zinc pyrophosphate, boron nitride or Iron III pyrophosphate.
- customary solid lubricants such as calcium fluoride, cryolite, antimony trioxide, molybdenum sulfide, zinc pyrophosphate, boron nitride or Iron III pyrophosphate.
- the application has also been very good for hot extrusion, for example of flywheels thin layers of the lubricants according to the invention have been tried and tested. While with oil graphite lubrication the mold made of alloy material often quickly through Crack formation was destroyed, so that it had to be replaced frequently, is by the Lubricant according to the invention doubles the life of the mold. It's just one more vigorous cleaning, but not a complete renewal of the mold required.
- a lubricant according to the invention was produced in the form of a 30% aqueous slurry, the solids content of which had the following composition: 85 Parts by weight of natural graphite with 95% purity in the form of carbon 3rd Parts by weight of bentonite 2.5 Parts by weight of sodium silicate with a ratio of SiO2: Na2O of 2.0 0.8 Parts by weight of a silicophosphate 8.7 Parts by weight of a phosphate mixture 40 Parts by weight of tetrasodium diphosphate 5 Parts by weight of primary zinc orthophosphate 5 Parts by weight of manganese orthosphate 10 Parts by weight of disodium dihydrogen phosphate 20th Parts by weight of potassium polyphosphate 5 Parts by weight of boric acid 5 Parts by weight of hydroxyapatite
- the mandrel bars in circulation were sprayed with the above-mentioned lubricant. After the water content had evaporated, the layer weight of the dry lubricant film was 60 g / m 2 of the surface of the mandrel bar.
- a lubricant according to the invention was produced in the form of a 15% by weight aqueous slurry, the solids content of which consisted of the following components: 73 Weight parts of a synthetic graphite with a purity of more than 98% carbon 3.5 Parts by weight of bentonite 3.0 Parts by weight of sodium silicate with a SiO 2 : Na 2 O ratio of 2.2 0.5 Parts by weight of a silicon phosphate with 22% by weight SiO 2 and 54% by weight P 2 O 5 20th Parts by weight of a phosphate mixture 35 Parts by weight of tetrasodium pyrophosphate 10 Parts by weight of primary zinc phosphate 5 Parts by weight of manganese orthophosphate 5 Parts by weight of disodium dihydrogen phosphate 15 Parts by weight of potassium polyphosphate 20th Parts by weight of boric acid 10 Parts by weight of hydroxyapatite
- the mandrel bar was smooth and free of scale particles.
- the inside surface of the pipe was also smooth.
- the internal roughness of the pipes had decreased significantly. she averaged 10 ⁇ m.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Lubricants (AREA)
Description
- keinerlei Umweltbeeinträchtigung durch Zersetzungsprodukte organischer Inhaltsstoffe,
- keine Schlammbildung beim Kühlen und Spülen der benutzten Dornstange, wie dies z. B. bei Verwendung von tonhaltigen Schmiermitteln der Fall ist,
- keine Schädigung der Dornstangen bzw. der Rohrinnenflächen durch schmirgelnde und riefenbildende Zunderpartikel und dergleichen.
85 | Gewichtsteile Naturgraphit mit 95 %iger Reinheit in Form von Kohlenstoff |
3 | Gewichtsteile Bentonit |
2,5 | Gewichtsteile Natriumsilikat mit einem Verhältnis SiO2 : Na2O von 2,0 |
0,8 | Gewichtsteile eines Silicophosphates |
8,7 | Gewichtsteile eines Phosphatgemisches aus |
40 | Gewichtsteilen Tetranatriumdiphosphat |
5 | Gewichtsteilen primärem Zinkorthophosphat |
5 | Gewichtsteilen Manganorthosphat |
10 | Gewichtsteilen Dinatriumdihydrogenphosphat |
20 | Gewichtsteilen Kaliumpolyphosphat |
5 | Gewichtsteilen Borsäure |
5 | Gewichtsteilen Hydroxylapatit |
73 | Gwichtsteile eines Synthesegraphits mit einer Reinheit von über 98 % Kohlenstoff |
3,5 | Gewichsteile Bentonit |
3,0 | Gewichtsteile Natriumsilicat mit einem Verhältnis SiO2 : Na2O von 2,2 |
0,5 | Gewichtsteile eines Silicophosphates mit 22 Gew.% SiO2 und 54 Gew.% P2O5 |
20 | Gewichtsteile eines Phosphatgemisches aus |
35 | Gewichtsteilen Tetranatriumpyrophosphat |
10 | Gewichtsteilen primärem Zinkphosphat |
5 | Gewichtsteilen Manganorthophosphat |
5 | Gewichtsteilen Dinatriumdihydrogenphosphat |
15 | Gewichtsteilen Kaliumpolyphosphat |
20 | Gewichtsteilen Borsäure |
10 | Gewichtsteilen Hydroxylapatit |
Claims (21)
- Schmiermittel mit einem Gehalt von 75 bis 90 Gew.% Graphit und 1 bis 10 Gew.% Phosphaten, dadurch gekennzeichnet, daß es als Phosphate eine Phosphatmischung aus Tetranatriumdiphosphat, primärem Zinkorthophosphat, primärem Manganorthophosphat, Dinatriumdihydrogendiphosphat und Kaliumpolyphosphat enthält.
- Schmiermittel nach Anspruch 1, dadurch gekennzeichnet, daß es 3 bis 5 Gew.% Phosphate enthält.
- Schmiermittel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß es zusätzlich 1 bis 4, vorzugsweise 2 bis 2,5 Gew.% Alkalisilikat enthält.
- Schmiermittel nach Anspruch 3, dadurch gekennzeichnet, daß es als Alkalisilikat Natriumsilikat, zweckmäßig mit einem Verhältnis von SiO2: Na2O von etwa 2 enthält.
- Schmiermittel nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß es zusätzlich 1 bis 10, vorzugsweise 4 bis 6 Gew.% Bentonit enthält.
- Schmiermittel nach Anspruch 5, dadurch gekennzeichnet, daß es einen Bentonit mit einer BET-Oberfläche von 6 m2/g enthält.
- Schmiermittel nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß es zusätzlich 0,5 bis 1, vorzugsweise 0,7 bis 0,9 Gew.% Silikophosphat enthält.
- Schmiermittel nach Anspruch 7, dadurch gekennzeichnet, daß es ein Silikophosphat mit etwa 22 % SiO2 und etwa 54 % P2O5 enthält.
- Schmiermittel nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß es als Graphit einen natürlichen oder synthetischen Graphit mit hoher Kristallinität und einem Aschegehalt unter 5 % enthält.
- Schmiermittel nach Anspruch 9, dadurch gekennzeichnet, daß es eine Phosphatmischung enthält, die 25 bis 50, vorzugsweise 33 bis 43 Gew.% Tetranatriumdiphosphat, 1 bis 20, vorzugsweise 3 bis 11 Gew.% primäres Zinkorthophosphat, 0,5 bis 20, vorzugsweise 1 bis 10 Gew.% primäres Manganorthophosphat, 2 bis 25, vorzugsweise 5 bis 15 Gew.% Dinatriumdihydrogendiphosphat und 8 bis 35, vorzugsweise 15 bis 25 Gew.% Kaliumpolyphosphat enthält.
- Schmiermittel nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß die Phosphatmischung zusätzlich Borsäure und/oder Hydroxylapatit enthält.
- Schmiermittel nach Anspruch 11, dadurch gekennzeichnet, daß die Phosphatmischung zusätzlich 5 bis 25, vorzugsweise 10 bis 20 Gew.% Borsäure und/oder 0,5 bis 15, vorzugsweise 1 bis 10 Gew.% Hydroxylapatit enthält.
- Schmiermittel nach einem der Ansprüche 9 bis 12, dadurch gekennzeichnet, daß die Phosphatmischung etwa 38 Gew.% Tetranatriumdiphosphat, etwa 7 Gew.% primäres Zinkorthophosphat, etwa 5 Gew.% primäres Manganorthophosphat, etwa 10 Gew.% Dinatriumdihydrogendiphosphat, etwa 20 Gew.% Kaliumpolyphosphat, etwa 15 Gew.% Borsäure und etwa 5 Gew.% Hydroxylapatit enthält.
- Schmiermittel nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß es als wäßrige Dispersion mit einem Feststoffgehalt von 20 bis 40 Gew.%, vorzugsweise 24 bis 35 Gew.% vorliegt, wobei sich die Prozentsätze von Graphit, Phosphaten bzw. Phosphatgemisch, Alkalisilikat, Bentonit und Silikophosphat auf den Feststoffanteil der wäßrigen Dispersion beziehen.
- Schmiermittel nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß es zusätzlich wenigstens einen Festschmierstoff, vorzugsweise in einer Menge von 1 bis 5 Gew.% enthält
- Schmiermittelzusatz, gekennzeichnet durch ein Phosphatgemisch, das aus 25 bis 50 Gew.% Tetranatriumdiphosphat, 1 bis 20 Gew.% primärem Zinkorthophosphat, 0,5 bis 20 Gew.% primärem Manganorthophosphat, 2 bis 25 Gew.% Dinatriumdihydrogendiphosphat und 8 bis 35 Gew.% Kaliumpolyphosphat besteht.
- Schmiermittelzusatz nach Anspruch 16, dadurch gekennzeichnet, daß er 33 bis 43 Gew.% Tetranatriumdiphosphat, 3 bis 11 Gew.% primäres Zinkorthophosphat, 1 bis 10 Gew.% primäres Manganorthophosphat, 5 bis 15 Gew.% Dinatriumdihydrogendiphosphat und 15 bis 25 Gew.% Kaliumpolyphosphat enthält.
- Schmiermittelzusatz nach Anspruch 16 oder 17, dadurch gekennzeichnet, daß er zusätzlich 5 bis 25 Gew.% Borsäure und/oder 0,5 bis 15 Gew.% Hydroxylapatit enthält.
- Schmiermittelzusatz nach Anspruch 18, dadurch gekennzeichnet, daß er 10 bis 20 Gew.% Borsäure und/oder 1 bis 10 Gew.% Hydroxylapatit enthält.
- Schmiermittelzusatz nach einem der Ansprüche 16 bis 19, dadurch gekennzeichnet, daß er aus etwa 38 Gew.% Tetranatriumdiphosphat, etwa 7 Gew.% primärem Zinkorthophosphat, etwa 5 Gew.% primärem Manganorthophosphat, etwa 10 Gew.% Dinatriumdihydrogendiphosphat, etwa 20 Gew.% Kaliumpolyphosphat, etwa 15 Gew.% Borsäure und etwa 5 Gew.% Hydroxylapatit besteht.
- Verwendung eines Schmiermittels nach einem der Ansprüche 1 bis 14 als Dornschmiermittel.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19626529 | 1996-07-02 | ||
DE19626529 | 1996-07-02 | ||
DE19637539 | 1996-09-14 | ||
DE19637539 | 1996-09-14 | ||
PCT/DE1997/001217 WO1998000483A1 (de) | 1996-07-02 | 1997-06-11 | Schmiermittel und dessen verwendung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0909309A1 EP0909309A1 (de) | 1999-04-21 |
EP0909309B1 true EP0909309B1 (de) | 2001-10-10 |
Family
ID=26027110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97927005A Expired - Lifetime EP0909309B1 (de) | 1996-07-02 | 1997-06-11 | Schmiermittel und dessen verwendung |
Country Status (7)
Country | Link |
---|---|
US (1) | US6177386B1 (de) |
EP (1) | EP0909309B1 (de) |
AT (1) | ATE206745T1 (de) |
AU (1) | AU3165297A (de) |
DE (2) | DE59704881D1 (de) |
ES (1) | ES2165063T3 (de) |
WO (1) | WO1998000483A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1059223C (zh) * | 1998-10-08 | 2000-12-06 | 中国科学院兰州化学物理研究所 | 高温防粘润滑涂料 |
US8114821B2 (en) * | 2003-12-05 | 2012-02-14 | Zulzer Metco (Canada) Inc. | Method for producing composite material for coating applications |
DE102004045128A1 (de) * | 2004-09-17 | 2006-03-23 | Chemische Fabrik Budenheim Kg | Schmiermittel zum Schmieren von erhitzten Metallgegenständen |
DE102006047621A1 (de) * | 2006-10-09 | 2008-04-10 | Chemische Fabrik Budenheim Kg | Graphithaltiger Hochtemperaturschmierstoff für Edel- und Kohlenstoffstähle |
CN101386805B (zh) * | 2007-09-12 | 2012-01-25 | 天津钢管集团股份有限公司 | 芯棒石墨润滑剂 |
JP5392134B2 (ja) * | 2010-02-15 | 2014-01-22 | 新日鐵住金株式会社 | 熱間圧延工具用潤滑剤および熱間継目無管製造用マンドレルバーの表面処理方法 |
US10793800B2 (en) * | 2017-02-07 | 2020-10-06 | Aero Accessories, Llc | Lubricant compositions and methods of use |
CN113444565A (zh) * | 2021-07-26 | 2021-09-28 | 湖南金裕环保科技有限公司 | 一种高温水基芯棒润滑剂、制备方法及其应用 |
US11921455B2 (en) * | 2022-03-02 | 2024-03-05 | Fujifilm Business Innovation Corp. | Lubricant solid, image forming apparatus, and process cartridge |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE634622C (de) * | 1934-07-17 | 1936-08-31 | Henkel & Cie Gmbh | Schmiermittel |
DE1594377A1 (de) * | 1965-05-13 | 1971-04-29 | Collardin Gmbh Gerhard | OElfreies Schmiermittel |
US3637498A (en) * | 1968-04-29 | 1972-01-25 | Aluminum Co Of America | Extrusion lubricant |
DE2154232C3 (de) | 1971-10-30 | 1974-06-06 | Chemische Fabrik Budenheim, Rudolf A. Oetker, 6501 Budenheim | Hochtemperaturschmierstoff für die Warmumformung von Metallen |
GB1438215A (en) * | 1974-05-08 | 1976-06-03 | Lonz Ltd | High temperature lubricant |
US4039337A (en) * | 1974-10-23 | 1977-08-02 | Ball Brothers Research Corporation | Release coating for glass manufacture |
SU1030405A1 (ru) * | 1982-04-09 | 1983-07-23 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский И Конструкторско-Технологический Институт Трубной Промышленности | Смазка дл гор чей обработки металлов давлением |
CH660023A5 (de) * | 1984-05-30 | 1987-03-13 | Lonza Ag | Hochtemperaturschmierstoff fuer die spanlose heissumformung von metallen. |
CH670106A5 (de) | 1984-07-23 | 1989-05-12 | Lonza Ag | |
JPH01219170A (ja) * | 1988-02-26 | 1989-09-01 | Nippon Parkerizing Co Ltd | 反応型潤滑処理液 |
US5089154A (en) * | 1990-10-16 | 1992-02-18 | Desilube Technology, Inc. | Recirculating powder lubricant delivery systems using thermally and oxidatively stable solid lubricants |
ATE188240T1 (de) * | 1992-02-06 | 2000-01-15 | Timcal Ag | Dornschmiermittel für die herstellung nahtloser rohre |
US5294355A (en) * | 1992-12-28 | 1994-03-15 | Desilube Technology, Inc. | Thermally and oxidatively stable solid lubricants |
DE4300464C1 (de) * | 1993-01-11 | 1994-06-09 | Dow Corning Gmbh | Festschmierstoffkombination, Verfahren zu ihrer Herstellung und ihre Verwendung |
ZA963198B (en) * | 1995-05-16 | 1996-10-25 | Timcal Ltd | Lubricant composition for use on workpieces in the hot forming of metals |
-
1997
- 1997-06-11 ES ES97927005T patent/ES2165063T3/es not_active Expired - Lifetime
- 1997-06-11 DE DE59704881T patent/DE59704881D1/de not_active Expired - Lifetime
- 1997-06-11 DE DE19780631T patent/DE19780631D2/de not_active Expired - Lifetime
- 1997-06-11 WO PCT/DE1997/001217 patent/WO1998000483A1/de active IP Right Grant
- 1997-06-11 AU AU31652/97A patent/AU3165297A/en not_active Abandoned
- 1997-06-11 US US09/202,881 patent/US6177386B1/en not_active Expired - Lifetime
- 1997-06-11 EP EP97927005A patent/EP0909309B1/de not_active Expired - Lifetime
- 1997-06-11 AT AT97927005T patent/ATE206745T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US6177386B1 (en) | 2001-01-23 |
WO1998000483A1 (de) | 1998-01-08 |
DE59704881D1 (de) | 2001-11-15 |
ATE206745T1 (de) | 2001-10-15 |
DE19780631D2 (de) | 1999-07-08 |
EP0909309A1 (de) | 1999-04-21 |
AU3165297A (en) | 1998-01-21 |
ES2165063T3 (es) | 2002-03-01 |
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