EP1082228B1 - Verfahren zum reinigen von druckmaschinen und druckformen - Google Patents
Verfahren zum reinigen von druckmaschinen und druckformen Download PDFInfo
- Publication number
- EP1082228B1 EP1082228B1 EP99925019A EP99925019A EP1082228B1 EP 1082228 B1 EP1082228 B1 EP 1082228B1 EP 99925019 A EP99925019 A EP 99925019A EP 99925019 A EP99925019 A EP 99925019A EP 1082228 B1 EP1082228 B1 EP 1082228B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- printing
- microemulsion
- oil
- cleaning
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N3/00—Preparing for use and conserving printing surfaces
- B41N3/06—Preparing for use and conserving printing surfaces by use of detergents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
- C11D17/0017—Multi-phase liquid compositions
- C11D17/0021—Aqueous microemulsions
Definitions
- the invention relates to a method for cleaning printing machines and Printing forms, in particular for removing printing inks, for example from Oil-based inks or radiation-curable inks, of which Cylinders and rollers of printing machines, especially flat or offset printing machines, as well as printing forms, for example when the Printing.
- cleaning agents are generally based organic solvents and / or aqueous solutions used.
- organic solvents and / or aqueous solutions used.
- VOC volatile organic compounds
- Cleaners made exclusively or predominantly from non-polar Organic solvents exist also have the disadvantage that the parts to be cleaned, for example pressure rollers, adhering solvent residues do not wash off with water after cleaning. There is a clean platen roller however, a prerequisite for good wetting with the printing ink and good Ink transfer. With some printing forms, the color-guiding printing template can also be used detached from the cleaning agent and thereby damaged or even become unusable.
- DE-B 27 24 557 describes a cleaning agent for lithographic printing plates described, which contains water and water-miscible organic solvents. Its cleaning effect against viscous inks is oil-based naturally limited.
- GB-A 2 089 289 describes oil-in-water and water-in-oil emulsions as Cleaner described.
- the disadvantage here is the relatively high interfacial tension between water and oil phase, so that for example lipophilic, highly hydrophobic offset inks because of their high interfacial energy compared to the water-continuous cleaning solution only slowly and only slightly Dimensions of this are included.
- Emulsions of this type are otherwise only kinetic, but not thermodynamic stable, so that they can separate, especially in the case of temperature fluctuations [Creaming (sitting down), thickening, flocculation] tend and thereby in their Applicability will be affected.
- the object of the invention was to provide a cleaning method and a liquid To provide cleaning agents that allow printing inks to be quick and effectively peel off without the environment becoming more volatile organic through vapors Components loaded or the printing template is attacked by printing forms.
- EP-A-0527315 discloses a water-in-oil microemulsion as blanket detergent from ethoxylated partial glycerides of caprylic / capric acid, 1,2-bis (oxazolin-2) ethane and at least one saturated fatty acid methyl ester.
- the invention is based on a method for cleaning printing machines or printing forms in which the contaminants are removed from the surface Wash away with a liquid.
- the process according to the invention is characterized in that the liquid is a bicontinuous microemulsion, the water surfactant and as an oil phase an organic water-immiscible Contains solvents in the proportions as in claim 1 are defined.
- a microemulsion is to be understood as a liquid, bicontinuous mixture of water and oil phase with an extremely low interfacial tension between the water and oil phase, i.e. an interfacial tension that is up to three orders of magnitude lower than that of a conventional water-in -Oil or oil-in-water emulsion.
- this interfacial tension is in the range of 10 -4 to 10 -6 N / m, for emulsions it is usually in the range of 10 -3 to 10 -2 N / m.
- a microemulsion in the sense of the present description is thermodynamically stable, visually transparent and preferably of low viscosity.
- Conventional conventional emulsions can contain oil and water phases in very different proportions by volume. They have a continuous and a disperse phase, which is present in the continuous phase as very small spheres stabilized by coating with surfactants. Depending on the nature of the continuous phase, one speaks of oil-in-water or water-in-oil emulsions. In the ideal case, these emulsions are kinetically stable, ie they remain intact for a long time, but not indefinitely. In particular in the case of temperature fluctuations, they can tend to phase separation by sitting, creaming, thickening or flaking.
- Bicontinuous microemulsions contain two phases, a water phase and an oil phase, in the form of extended domains lying next to one another and intertwined, at the interface of which stabilizing surfactant surfactants are enriched in a monomolecular layer.
- Bicontinuous microemulsions form very easily, usually because of the very low interfacial tension, if the individual components, water, oil and a suitable surfactant system, are mixed. Since the domains have only very small dimensions in the order of nanometers in at least one dimension, the microemulsions appear visually transparent and, depending on the surface-active system used, are thermodynamically stable in a certain temperature range, ie for an unlimited period.
- the microemulsions contain certain amphiphiles, i.e. surfactants, and electrolytes often dissolved in their aqueous phase and optionally other auxiliaries. Especially then electrolytes added if the amphiphiles partially or exclusively ionic surfactants are.
- microemulsions for the extraction of organic pollutants contaminated soils is described in WO 94/04289. Also the Tertiary oil production is known as an area of application for microemulsions become.
- microemulsions as Detergents, e.g. B. for painted or bare metal sheets, plastics and other surfaces, especially for pre-treatment for subsequent ones To use coatings.
- the components of the microemulsion should be selected so that they mechanical properties of device parts or sealing materials Rubber or similar materials, such as elasticity, flexibility, Dimensional stability etc., by swelling or shrinking (swelling) Don ⁇ t change.
- Organic solvents which are immiscible with water are advantageously those with a boiling range above 100, preferably above 150 ° C., in particular from 200 used up to 400 ° C. In general, organic solvents are used Flash points above 100 ° C used. Under “organic solvents” are among other fats and oils, e.g. Beet oil, fatty acid esters, ethers, ketones, aldehydes and understand hydrocarbons.
- Alkyl esters of longer-chain fatty acids are for the process according to the invention suitable.
- the alkyl group of the alcohol component has 1 to 20, preferably 1 to 16 carbon atoms.
- the fatty acid component normally has 6 to 25, preferably 8 to 18 carbon atoms and can be linear or branched, be saturated or unsaturated and up to three double bonds in the molecule contain.
- the esters generally have an iodine number ranging from 0 to about 150, preferably from 0 to 40. Compounds with a higher content Double bonds often show a tendency to resinify and thus to Separation of unwanted substances. Such connections are therefore if at all, added only in small proportions.
- esters are methyl, ethyl, isopropyl, n-butyl, n-hexyl, 2-ethylhexyl esters and / or Isooctyl esters of fatty acids or fatty acid mixtures, for example octanoic acid, 2-ethylhexanoic acid, capric acid, lauric acid.
- esters are, for example, 2-ethylhexyl coconut fatty acid, Tall oil fatty acid n-hexyl ester, rapeseed methyl ester, oleic acid methyl ester, stearic acid methyl ester, Isopropyl palmitate, ethyl laurate, 2-ethylhexanoic acid 2- ethylhexyl ester and octanoic acid n-octyl ester.
- Esters are also high boiling range ethers, e.g. Dioctyl ether, as well Tricylycerides, such as rapeseed oil, coconut oil or soybean oil, are suitable.
- the esters are characterized by a very low vapor pressure, so that at no pollution of the atmosphere occurs during their use.
- the volume fractions are aqueous and organic Phase approximately in the same order of magnitude, i.e. the volume ratio of Water to organic phase 40:60 to 60:40.
- surfactants hereinafter also referred to as surfactants basically such different amphiphilic characters are used, thus anionic, cationic, amphoteric and nonionic surfactants or their Mixtures.
- Suitable anionic surfactants are C 10 to C 20 , preferably C 12 to C 16 alkyl sulfates, for example sodium dodecyl sulfate; C 10 to C 20 , preferably C 12 to C 16 alkyl polyether sulfates, for example sodium dodecyloxypolyethoxy sulfate; Alkali salts of diisooctylsulfosuccinic acid; Alkali salts of alkylbenzenesulfonic acids, for example sodium dodecylbenzenesulfonate, of dialkyl phosphates, and of carboxylates, for example of fatty alkyl ether carboxylates.
- anionic surfactants for example sodium dodecyl sulfate
- alkanols such as butanol, pentanol or hexanol
- alkali or alkaline earth metal salts for example sodium chloride, sodium sulfate or calcium chloride, or with other electrolytes, for example NaOH, KOH , Phosphates or silicates used.
- microemulsions used according to the invention can still Complexing agents such as ethylenediaminetetraacetic acid, nitrilotriacetic acid or Methylglycinediacetic acid, corrosion inhibitors and / or preservatives contain.
- Complexing agents such as ethylenediaminetetraacetic acid, nitrilotriacetic acid or Methylglycinediacetic acid, corrosion inhibitors and / or preservatives contain.
- the alkanols can be present in amounts of up to 20, preferably up to 10% by weight
- Electrolytes can be added in amounts of up to 10, preferably up to 5% by weight.
- Cationic surfactants can be used, for example, to produce microemulsions Alkyltrimethylammonium halides with alkyl chain lengths of about 8 up to 18 carbon atoms and / or quaternized imidazolinium or pyridinium salts be used.
- Suitable nonionic or nonionic surfactants are polyglycol monoalkyl ethers with alkyl chain lengths of C 8 to C 18, preferably C 10 to C 16 , and 2 to 20, preferably 3 to 15 oxyalkylene, in particular ethylene, propylene and / or butylene units, or block copolymers from these units.
- C 10 to C 15 alkyl ethers of polyglycols with 3 to 10 oxyalkylene units are frequently used. These are mostly technical products with a more or less broad molecular weight distribution.
- Surfactants with a narrow molecular weight distribution produced using special casters can also be used.
- Triglyceride alkoxylates for example reaction products of 1 mol of triglyceride with 1 to 50 mol of alkylene oxide, particularly 10 to 50 mol of ethylene oxide, are also suitable.
- surfactants based on saccharides for example alkyl polyglucosides or glucosamides, can be used.
- microemulsions used according to the invention preferably contain anionic ones Surfactants, usually in combination with one or more nonionic surfactants.
- microemulsions can also be produced using nonionic surfactants alone become.
- the proportion is Total surfactants in the microemulsion in the range of 7 to 25% by weight. If the surfactant content is too high, Cleaning problems arise, or the drying of the printing rollers can To cause difficulties.
- anionic surfactant 1 to 20% by weight polyethylene glycol monoalkyl ether; 0.1 to 10, preferably 0.5 to 5 wt .-% reaction product of triglyceride with Ethylene oxide and 1 to 20 wt .-% polyalkylene glycol monoalkyl ether Oxyethylene and / or oxypropylene units used.
- microemulsions used according to the invention contain 20 to 60 wt .-% water-immiscible organic Solvent and 30 to 60 wt .-% water. All information in % By weight is based on the total weight of the finished microemulsion based.
- microemulsion is thermodynamic in a certain temperature range stable. Those microemulsions which are preferred at room temperature and among them are thermodynamically stable. In many cases, however, it can also Microemulsions are used with success, their stability range above Room temperature, for example between 50 and 60 ° C.
- the Microemulsion applied to the parts of the press to be cleaned When carrying out the cleaning process according to the invention, the Microemulsion applied to the parts of the press to be cleaned.
- the Surface of the printing ink is wetted quickly, evenly and completely, so that the printing ink is quickly absorbed and dissolved by the cleaning liquid or is emulsified. Leave the remaining remains of the microemulsion easily removed by washing with water.
- the same goes for the after Interruption of pressure on one to be cleaned and preserved Printing form, in particular an ink or offset form remaining ink residue.
- the most important thing here is the complete removal of paint residues from the Non-image or background areas of the printing form, on which, for example, the Flat or offset printing the required when resuming printing Hydrophilicity must be preserved.
- a printable printing plate referred to, usually by Exposing and developing a photosensitive printing plate is obtained.
- microemulsions used according to the invention are also suitable for Cleaning of other substances, e.g. B. of plastics, old paintwork, Primers and bare metal sheets. You can e.g. B. as a cleaning agent used in the field of car refinishing and as a brush cleaner become.
- a microemulsion which is stable at room temperature was described as in Preparation Example 1, but from 8 g of dioctyl sulfosuccinate, 16 g of the same polyglycol monoalkyl ether mixture, 15 g of rapeseed oil fatty acid methyl ester, 15 g of coconut fatty acid 2-ethyl-hexyl ester, 46 g of water and 0.07 g calcium chloride prepared.
- microemulsions of Preparation Examples 3 and 4 are outside of specified temperature ranges are not permanently stable and separate Standing for a long time at room temperature in an oil and a water phase.
- the Microemulsions of Preparation Examples 1 and 2 allow one Use for an unlimited period at room temperature.
- rollers of a rotary offset printing press were used in a comparative test after every 100,000 prints with commercially available offset printing ink Oil base with white spirit (mainly with aliphatic hydrocarbons a boiling range of 80 to 250 ° C) and once with the microemulsion of Preparation example 1 cleaned. In both cases the cleaning performance, i.e. the removal of the ink, essentially the same.
- the rollers were cleaner and drier than in the microemulsion Use of white spirit. The remains of the microemulsion could easily and can be removed without residue by simply rinsing with water.
- the offset printing form used in the printing process was included treated both cleaning liquids. In both cases, a clean, from Preserved printing stencil free of paint residues.
- the one cleaned with the microemulsion Printing form was from the subsequently applied aqueous solution of rubber arabicum smoothly and completely wetted, while this solution also from the The non-image-bearing support surface of the white spirit cleaned Printing form difficult and accepted only after a long intensive treatment has been.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
- Printing Plates And Materials Therefor (AREA)
- Coloring (AREA)
Description
Bikontinuierliche Mikroemulsionen enthalten zwei Phasen, eine Wasser- und eine Ölphase, in Form von ausgedehnten nebeneinanderliegenden und ineinander verschlungenen Domänen, an deren Grenzfläche stabilisierende grenzflächenaktive Tenside in einer monomolekularen Schicht angereichert sind. Bikontinuierliche Mikroemulsionen bilden sich sehr leicht, in der Regel wegen der sehr niedrigen Grenzflächenspannung spontan, wenn die Einzelkomponenten, Wasser, Öl und ein geeignetes grenzflächenaktives System, vermischt werden. Da die Domänen in mindestens einer Dimension nur sehr geringe Ausdehnungen in der Größenordnung von Nanometern haben, erscheinen die Mikroemulsionen visuell transparent und sind je nach dem eingesetzten grenzflächenaktiven System in einem bestimmten Temperaturbereich thermodynamisch, d.h. zeitlich unbegrenzt, stabil.
16 g des gleichen Polyglykolmonoalkylethergemischs, 15 g Rapsölfettsäuremethylester, 15 g Kokosfettsäure-2-ethyl-hexylester, 46 g Wasser und
0,07 g Calciumchlorid hergestellt.
Claims (7)
- Verfahren zum Reinigen von Druckmaschinen oder Druckformen, bei dem man die Verunreinigungen von den zu reinigenden Oberflächen durch Waschen mit einer Flüssigkeit entfernt, dadurch gekennzeichnet, daß die Flüssigkeit eine bikontinuierliche Mikroemulsion ist, enthaltenda) 20 bis 60 Gew.-% eines C1-C20-Alkylesters einer gesättigten oder ungesättigten C6-C25-Fettsäure als mit Wasser nicht mischbares organisches Lösemittel,b) 30 bis 60 Gew.-% Wasser,c) 7 bis 25 Gew.-% Tensid,
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man das Waschen in einem Temperaturbereich durchführt, in dem die Mikroemulsion thermodynamisch stabil ist.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß als grenzflächenaktives Mittel ein anionisches Tensid eingesetzt wird.
- Verfahren nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, daß die Mikroemulsion zusätzlich ein nichtionisches grenzflächenaktives Mittel Mittel enthält.
- Verfahren nach einem der Ansprüche 1 - 4, dadurch gekenzeichnet, daß in dem Wasser ein Elektrolyt gelöst ist
- Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß der Elektrolyt ein wasserlösliches Alkali- oder Erdalkalisalz ist
- Verfahren nach einem der Ansprüche 1 - 6, dadurch gekennzeichnet, daß in dem Wasser ein Komplexbildner oder ein Korrosionsinhibitor gelöst ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19824236A DE19824236A1 (de) | 1998-05-29 | 1998-05-29 | Verfahren zum Reinigen von Druckmaschinen und Druckformen |
DE19824236 | 1998-05-29 | ||
PCT/EP1999/003479 WO1999062723A1 (de) | 1998-05-29 | 1999-05-20 | Verfahren zum reinigen von druckmaschinen und druckformen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1082228A1 EP1082228A1 (de) | 2001-03-14 |
EP1082228B1 true EP1082228B1 (de) | 2002-04-03 |
Family
ID=7869413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99925019A Expired - Lifetime EP1082228B1 (de) | 1998-05-29 | 1999-05-20 | Verfahren zum reinigen von druckmaschinen und druckformen |
Country Status (9)
Country | Link |
---|---|
US (1) | US6544348B1 (de) |
EP (1) | EP1082228B1 (de) |
JP (1) | JP4343435B2 (de) |
AT (1) | ATE215453T1 (de) |
AU (1) | AU746240B2 (de) |
CA (1) | CA2332584C (de) |
DE (2) | DE19824236A1 (de) |
DK (1) | DK1082228T3 (de) |
WO (1) | WO1999062723A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10258668A1 (de) * | 2002-12-13 | 2004-06-24 | Basf Ag | Verfahren zur Herstellung von Flexodruckformen mittels Lasergravur unter Verwendung von fotopolymeren Flexodruckelementen und fotopolymerisierbares Flexodruckelementen |
US20060264350A1 (en) * | 2004-05-05 | 2006-11-23 | Bba Nonwovens Simpsonville Inc. | Printing blanket cleaning material |
US7037882B2 (en) * | 2004-05-05 | 2006-05-02 | Bba Nonwovens Simpsonville, Inc. | Composition and material for cleaning printing machines |
US20050256022A1 (en) * | 2004-05-12 | 2005-11-17 | May Choo Y | High performance cleaning agent |
DE102004025364A1 (de) | 2004-05-19 | 2005-12-08 | Basf Drucksysteme Gmbh | Verfahren zur Herstellung von Flexodruckformen mittels Laser-Direktgravur |
US20080287331A1 (en) * | 2007-05-18 | 2008-11-20 | Hai-Hui Lin | Low voc cleaning composition for cleaning printing blankets and ink rollers |
CN101434764B (zh) * | 2007-11-15 | 2010-12-01 | 中国石油化工股份有限公司 | 一种油墨清洗剂 |
EP2065211B1 (de) * | 2007-11-30 | 2010-05-26 | Agfa Graphics N.V. | Verfahren zur Behandlung einer Lithografiedruckplatte |
ATE514561T1 (de) * | 2008-03-31 | 2011-07-15 | Agfa Graphics Nv | Verfahren zur behandlung einer lithografischen druckplatte |
KR20110008210A (ko) * | 2008-05-09 | 2011-01-26 | 로디아 오퍼레이션스 | 그린 용매를 포함하는 세정 조성물 및 사용 방법 |
JP2010234554A (ja) * | 2009-03-30 | 2010-10-21 | Fujifilm Corp | 印刷版の作製方法 |
RU2542993C2 (ru) * | 2009-12-16 | 2015-02-27 | Юнилевер Н.В. | Бинепрерывная микроэмульсионная моющая композиция |
EP2361963A1 (de) * | 2010-02-01 | 2011-08-31 | Unilever N.V. | Bikontinuierliche Mikroemulsions-Waschmittelzusammensetzung |
DE102015011694A1 (de) * | 2015-09-14 | 2017-03-16 | Forschungszentrum Jülich GmbH | Reinigungsmittel auf Mikroemulsionsbasis |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4100096A (en) | 1976-06-04 | 1978-07-11 | Addressograph Multigraph Corp. | Cleaner for hydrophilic metal surfaces of lithographic duplicators |
US4399243A (en) | 1980-12-12 | 1983-08-16 | Richardson Graphics Company | Cleaner and scratch remover composition |
US5380453A (en) * | 1988-09-26 | 1995-01-10 | Unichema Chemie B.V. | Composition comprising alkyl esters of aliphatic (C8 -C22) monocarboxylic acids and oil in water emulsifier |
DK533188D0 (da) | 1988-09-26 | 1988-09-26 | Aarhus Oliefabrik As | Anvendelse af (c1-c5) alkylestere af alifatiske (c8-c22) monocarboxylsyrer til afrensning af fedt, maling, trykfarver o.l. og rensemiddel indeholdendesaadanne estere |
GB9101850D0 (en) * | 1991-01-29 | 1991-03-13 | Du Pont Howson Ltd | Improvements in or relating to printing |
US5213624A (en) * | 1991-07-19 | 1993-05-25 | Ppg Industries, Inc. | Terpene-base microemulsion cleaning composition |
DE4126719A1 (de) | 1991-08-13 | 1993-02-18 | Baldwin Gegenheimer Gmbh | Nichtionisches fluessiges drucktuchwaschmittel fuer die maschinelle gummituchreinigung in offsetdruckmaschinen |
NZ264113A (en) | 1993-08-04 | 1996-06-25 | Colgate Palmolive Co | Liquid crystal or microemulsion liquid cleaners containing esterified polyethoxyether nonionic surfactant, anionic surfactant, cosurfactant, optionally a fatty acid, and water-insoluble hydrocarbon or perfume |
-
1998
- 1998-05-29 DE DE19824236A patent/DE19824236A1/de not_active Withdrawn
-
1999
- 1999-05-20 JP JP2000551962A patent/JP4343435B2/ja not_active Expired - Fee Related
- 1999-05-20 DK DK99925019T patent/DK1082228T3/da active
- 1999-05-20 US US09/701,370 patent/US6544348B1/en not_active Expired - Fee Related
- 1999-05-20 EP EP99925019A patent/EP1082228B1/de not_active Expired - Lifetime
- 1999-05-20 AU AU41451/99A patent/AU746240B2/en not_active Ceased
- 1999-05-20 AT AT99925019T patent/ATE215453T1/de not_active IP Right Cessation
- 1999-05-20 DE DE59901125T patent/DE59901125D1/de not_active Expired - Lifetime
- 1999-05-20 WO PCT/EP1999/003479 patent/WO1999062723A1/de active IP Right Grant
- 1999-05-20 CA CA002332584A patent/CA2332584C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DK1082228T3 (da) | 2002-07-08 |
CA2332584C (en) | 2007-11-20 |
ATE215453T1 (de) | 2002-04-15 |
EP1082228A1 (de) | 2001-03-14 |
WO1999062723A1 (de) | 1999-12-09 |
DE59901125D1 (de) | 2002-05-08 |
CA2332584A1 (en) | 1999-12-09 |
JP2002516776A (ja) | 2002-06-11 |
US6544348B1 (en) | 2003-04-08 |
AU4145199A (en) | 1999-12-20 |
JP4343435B2 (ja) | 2009-10-14 |
DE19824236A1 (de) | 1999-12-02 |
AU746240B2 (en) | 2002-04-18 |
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