EP1261656A1 - Method for production of radically post-cured polymers by addition of reactive anhydrides - Google Patents
Method for production of radically post-cured polymers by addition of reactive anhydridesInfo
- Publication number
- EP1261656A1 EP1261656A1 EP01909669A EP01909669A EP1261656A1 EP 1261656 A1 EP1261656 A1 EP 1261656A1 EP 01909669 A EP01909669 A EP 01909669A EP 01909669 A EP01909669 A EP 01909669A EP 1261656 A1 EP1261656 A1 EP 1261656A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compounds
- stage
- radical
- production
- epoxidized
- 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.)
- Withdrawn
Links
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- 229920000642 polymer Polymers 0.000 title claims abstract description 13
- 150000008064 anhydrides Chemical class 0.000 title claims abstract description 11
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- 239000003999 initiator Substances 0.000 claims abstract description 13
- 239000011159 matrix material Substances 0.000 claims abstract description 11
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 10
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- 239000002131 composite material Substances 0.000 claims abstract description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 7
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- VSJBBIJIXZVVLQ-UHFFFAOYSA-N tert-butyl 3,5,5-trimethylhexaneperoxoate Chemical compound CC(C)(C)CC(C)CC(=O)OOC(C)(C)C VSJBBIJIXZVVLQ-UHFFFAOYSA-N 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
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- CDMDQYCEEKCBGR-UHFFFAOYSA-N 1,4-diisocyanatocyclohexane Chemical compound O=C=NC1CCC(N=C=O)CC1 CDMDQYCEEKCBGR-UHFFFAOYSA-N 0.000 description 1
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- QGLRLXLDMZCFBP-UHFFFAOYSA-N 1,6-diisocyanato-2,4,4-trimethylhexane Chemical compound O=C=NCC(C)CC(C)(C)CCN=C=O QGLRLXLDMZCFBP-UHFFFAOYSA-N 0.000 description 1
- VZXPHDGHQXLXJC-UHFFFAOYSA-N 1,6-diisocyanato-5,6-dimethylheptane Chemical compound O=C=NC(C)(C)C(C)CCCCN=C=O VZXPHDGHQXLXJC-UHFFFAOYSA-N 0.000 description 1
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- 239000003784 tall oil Substances 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- CSKKAINPUYTTRW-UHFFFAOYSA-N tetradecoxycarbonyloxy tetradecyl carbonate Chemical compound CCCCCCCCCCCCCCOC(=O)OOC(=O)OCCCCCCCCCCCCCC CSKKAINPUYTTRW-UHFFFAOYSA-N 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical class CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 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
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/006—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers provided for in C08G18/00
Definitions
- the present invention relates to a process for producing free-radically post-crosslinked polymers.
- one or more special acrylic or methacrylic acid derivatives based on naturally occurring oils are reacted with aromatic and / or aliphatic isocyanates and the polyurethanes (a *) obtained in this way are then subjected to a radical postcrosslinking in the presence of a radical initiator (b) in the second stage. subjected.
- a radical postcrosslinking in the presence of a radical initiator (b) in the second stage. subjected.
- the requirement here is that a combination of the compounds (a *) with one or more compounds (c) is used in the second stage, the compounds (c) being selected from the group of reactive anhydrides.
- the object of the present invention was to provide a process for the preparation of polymers with excellent properties, in particular with regard to impact resistance, also hydrophobicity, chemical stability and water or water vapor resistance.
- these polymers should be suitable as matrix materials for composite materials due to their special application properties.
- the present invention relates to a process for the preparation of free-radically post-crosslinked polymers, wherein in the first stage one or more compounds (a), the reaction products of epoxidized fatty acid esters and / or epoxidized triglyce- riden with acrylic acid and / or methacrylic acid are converted into the corresponding polyurethanes (a *) by reaction with aliphatic and or aromatic isocyanates and the polyurethanes (a *) thus prepared are subsequently radically crosslinked in a second stage in the presence of at least one radical initiator (b) , with the additional proviso that in the second stage a combination of the compounds (a *) with one or more compounds (c) is used, the compounds (c) being selected from the group of reactive anhydrides.
- the term “subsequently” merely means that the second stage of the method according to the invention follows the first stage. There is no restriction in terms of time with this term.
- the second stage of the method according to the invention can therefore be used immediately afterwards to the first stage of the process, but it can also - depending on the desired application - take place after storage of the intermediate product (of a polyurethane) obtained in the first stage of the process, there being no fundamental restrictions with regard to the storage time.
- esters of olefinically unsaturated fatty acids or triglycerides which contain olefinically unsaturated fatty acids as fatty acid building blocks are subjected to epoxidation, one or more double bonds per molecule being converted into oxirane groups.
- Carboxylic acids having 12 to 24 carbon atoms and containing at least one olefinic double bond in the molecule are preferred as fatty acid building blocks of the fatty acid esters to be epoxidized.
- those triglycerides are preferred in which at least one fatty acid building block contains at least one olefinic double bond per triglyceride molecule.
- epoxidized triglycerides are the epoxidation products of the following unsaturated oils: soybean oil, linseed oil, tall oil, cottonseed oil, peanut oil, palm oil, sunflower oil menöl (old and new breed), rape oil and hoof oil. They are produced in particular by reacting the unsaturated oils mentioned with performic or peracetic acid.
- Preferred triglycerides are those which have an iodine number in the range from 50 to 200 and which, with extensive epoxidation of the olefinic double bonds, are converted into epoxides with a content of 3 to 10% by weight epoxy oxygen.
- epoxidized triglycerides are epoxidized soybean oil (e.g. commercial product "Edenol D 81" from Cognis Deutschland GmbH - formerly Henkel KGaA) and epoxidized linseed oil (e.g. commercial product "Edenol B 316" from Cognis Deutschland GmbH - formerly Henkel KGaA).
- the ring-opening product of the epoxidized soybean oil with acrylic acid which has a hydroxyl number of about 158 mg KOH per g substance, is used as the acrylated oil (a).
- This acrylate is first reacted with aromatic and / or aliphatic isocyanates, a catalyst, for example an organic tin compound, preferably being used in the aliphatic isocyanates.
- one or more (meth) acrylated compounds (a) are subjected to a two-stage treatment in accordance with the process according to the invention, namely • firstly a reaction with aliphatic and / or aromatic isocyanates • and then a radical post-crosslinking of the polyurethanes (a *) obtained in this way in combination with the compounds (c) mentioned in the presence of at least one radical initiator (b).
- Diisocyanates, oligo- or polyisocyanates, and mixtures of these compounds are preferably used.
- the polyisocyanates include, for example, adducts of diisocyanates with trimethylolpropane, biurets, uretdiones (cyclodimerized isocyanates), isocyanurates (cyclotrimerized isocyanates), allophanates, carbodiimide-based isocyanates and the like (merely by way of example with regard to this Knowledge of the person skilled in the art regarding the di- and polyisocyanates referred to: Ulimanns Encyklopadie der technical chemistry, Volume 19, 4th edition, Weinheim 1980, pages 302-304 as well as to Kirk-Othmer, Encyclopedia of Chemical Technology, 4th edition, New York 1995, Volume 14, pages 902-934) and finally on Gerhard W.
- Sulfur-containing polyisocyanates are obtained, for example, by reacting 2 mol of hexamethylene diisocyanate with 1 mol of thioglycol or dihydroxydihexyl sulfide.
- Other important diisocyanates are trimethylhexamethylene diisocyanate, 1,4-diisocyanatobutane, 1,12-diisocyanatododecane and dimer fatty acid diisocyanate (commercial product "Sovermol DDI 1410" from Cognis Deutschland GmbH - formerly Henkel KgaA).
- diisocyanates are: tetramethylene, hexamethylene, undecane, decamethylene, 2,2,4-trimethylhexane, 1,3-cyclohexane, 1,4-cyclohexane, 1,3- and 1, 4- tetramethylxylene, isophorone, 4,4-dicyclohexylmethane and lysine ester diisocyanate.
- higher-functional isocyanates are used, which is understood to mean those isocyanates which have an average NCO functionality of at least 2.0.
- polyisocyanates for example polymer MDI and the like and the polyisocyanates of the formulas 1 to 7 disclosed in EP-A-438 836) which have an NCO functionality above 2.0.
- NCO functionality because the corresponding higher-functional isocyanates do not necessarily have to be in the form of chemically uniform individuals, such as cyclotrimerized isocyanates, but - particularly in the case of commercially available technical products - frequently represent mixtures of different chemical individuals, each of which defines a defined NCO Functionalities.
- the reaction ratios of the components (a) and the isocyanates are chosen so that the equivalent ratio of NCO: OH is in the range from 0 , 03: 1 to 1.2: 1. It is preferred to work in the range of about 0.4: 1.
- the individual members of this substance class can be used either alone or in combination with each other.
- the substances (c) are used in technical quality.
- Maleic anhydride is preferably used as compound (c).
- the compounds (c) are present in the second stage of the process. So that this criterion is met, the compounds (c) can be metered in specifically to the compounds (a *); However, it may also be desirable to use the compounds (c) in a mixture with the compounds (a) already in the first stage, since they are practically unaffected by the urethanization reaction. A combination of both possibilities of metering in the compounds (c) is also possible.
- the postcrosslinking in the second step of the process according to the invention is carried out in the presence of at least one radical initiator (b).
- This initiator is not critical in itself.
- an organic peroxide is preferably used as the radical initiator. Such organic peroxides are commercially available in large numbers.
- the postcrosslinking is carried out in the presence of 0.1 to 10% by weight, based on the polyurethane (a *) used, of one or more radical initiators (b).
- the postcrosslinking can be carried out per se according to all relevant methods known to the person skilled in the art.
- Transition metal compounds (d) are preferably used as catalysts.
- the amount of the transition metal compound - metal content of the transition metal compound based on the polyurethane obtained in the first stage of the process according to the invention - is from 0.01 to 1000 ppm.
- the type of transition metal compound there is no particular restriction per se. Accordingly, all transition metal compounds known to the person skilled in the art can in principle be used in the context of the teaching of the present invention.
- the transition metal compounds used are transition metal salts, preferably salts based on organic acids with 6-22 C atoms.
- those transition metal compounds are used whose metals are selected from the group consisting of cobalt, zirconium, iron, lead, manganese, nickel, chromium, vanadium, cerium, titanium and tin.
- Cobalt-II-octoate which is used in particular in the form of a solution, for example in phthalate, is particularly preferred as the catalyst.
- the postcrosslinking is carried out in the absence of a catalyst at temperatures in the range from 60 to 160 ° C. and in particular 120 to 160 ° C.
- This special type of post-crosslinking can be referred to as hot curing.
- the short-term heating to temperatures of approximately is particularly advantageous
- the second step of the process according to the invention is carried out in the presence of one or more compounds (e) which are free-radically copolymerizable with the unsaturated polyurethanes (a *).
- Suitable compounds (e) are in particular substances with a C fürC double bond per molecule, preferably acrolein, acrylamide, vinyl acetate and styrene, it being possible for these compounds to be used alone or as a mixture with one another.
- the process according to the invention is carried out in the first and / or second stage in the presence of up to 20% by weight of conventional plastic auxiliaries, by weight% of the total of all plastic auxiliaries, based on the total amount of the compounds (a) used.
- plastic auxiliaries are, for example, thickeners, leveling agents, defoamers, lubricants, fillers, UV stabilizers.
- auxiliaries are sufficiently known to the person skilled in the art from lacquer or coating technology. It must be ensured that the plastic auxiliaries used have essentially no free hydroxyl groups, provided that they are used in the first stage of the process according to the invention, so that they do not react with the isocyanates used in this stage.
- a mixture of the polyurethanes (a *) obtained in the first stage of the process according to the invention is drawn in a mixture with the desired compounds (b) and (c) and, if appropriate, additionally the desired compounds (d) and (e) in the desired Layer thickness on a solid substrate and then - immediately or after storage - carries out the post-crosslinking.
- Wood, paper, plastic surfaces, mineral building materials such as shaped cement blocks or cement fiber boards, and also metals or coated metals are particularly suitable as solid substrates.
- the post-crosslinking process which can also be referred to as curing, can, if desired, be repeated one or more times.
- the polyurethanes (a *) are applied to the solid substrate in a mixture with the desired compounds (b) and (c) and optionally additionally with the desired compounds (d) and (e) in a known manner, for example by spraying, filling, knife coating, Brushing, rolling or pouring.
- the coating thickness is generally in the range from 3 to 500 g / m and in particular 10 to 200 g / m or wet film thicknesses of approximately 3 to 500 ⁇ m and in particular 50 to 200 ⁇ m.
- the application can take place both at room temperature and at elevated temperature, but in particular not above 100 ° C.
- the second process step is carried out in such a way that synthetic and / or natural fibers are mixed with a mixture of components (a *), (b) and (c) and, if desired, (e) and if desired, impregnated with plastic auxiliaries and then carrying out the radical crosslinking.
- This procedure is based on the so-called prepreg technology.
- Prepreg is understood to mean a semi-finished product pre-impregnated with thermoplastic or thermoset material, which is further processed into the finished part in a further processing step.
- fibers are usually impregnated with a resin matrix in suitable systems.
- the prepregs can then either directly after their production or after a certain period of intermediate storage can be processed into the desired finished parts.
- the stated embodiment of the invention therefore aims to provide fiber composite materials made of fibers and a matrix material, in which the matrix material is a free-radically post-crosslinked polymer which can be obtained by the process according to the invention.
- Another object of the present invention is the use of polymers obtainable by the process according to the invention as a matrix material for composites based on synthetic and / or natural fibers.
- Another object of the present invention is a polymer-based material which can be obtained by, in the first stage, at least one or more compounds (a) which are reaction products of epoxidized fatty acid esters and / or epoxidized triglycerides with acrylic acid and / or methacrylic acid Reaction with aliphatic and / or aromatic isocyanates is converted into the corresponding polyurethanes (a *) and the polyurethanes (a *) thus prepared are then radically crosslinked in a second stage in the presence of at least one radical initiator (b), with the additional proviso that in the second stage uses a combination of the compounds (a *) with one or more compounds (c), the compounds (c) being selected from the group of reactive anhydrides.
- compounds (a) which are reaction products of epoxidized fatty acid esters and / or epoxidized triglycerides with acrylic acid and / or methacrylic acid Reaction with aliphatic and / or aromatic isocyanates
- the production of the polymer-based material is carried out in a second stage in the sense of the prepreg technology mentioned above in the presence of synthetic and / or natural fibers.
- synthetic fibers such as glass fibers, carbon fibers, metal fibers and the like can be used, as well as natural fibers.
- those fibers are preferred which at least partially, but preferably completely, contain natural fibers.
- the natural fibers can be used in the form of short fibers, yarns, rovings or, preferably, textile fabrics in the form of nonwovens, needled nonwovens, tangled nonwovens, fabrics, scrims or knitted fabrics.
- the natural fibers are preferably selected from flax, hemp, straw, wood wool, sisal, jute, coconut, ramie, bamboo, bast, cellulose, cotton or wool fibers, animal hair or fibers based on of Chitin / Chitosan or their combination. Those materials are preferred that contain all or part of flax fibers.
- the proportion by weight of fiber material - based on the total amount of the compounds (a), (b) and (c) used - is between 10 and 70% by weight.
- the fibers can be brought into contact with the matrix by all methods known per se to the person skilled in the art in order to obtain prepregs in this way.
- the fibers are preferably immersed in the matrix, but spray processes are also possible.
- Mixtures containing (a *), (b) and (c) which have a Brookfield viscosity in the range from 600 to 1400 mPas (measured with spindle 5 at 10 revolutions / min) are preferably used.
- the viscosity values relate to the application temperature.
- the matrix is preferably applied to the fibers at temperatures in the range from 40 ° to 80 ° C., it being particularly advantageous to select such matrices which have a Brookfield viscosity in the range from 600 to 1200 mPas at a temperature of 65 ° C.
- the matrix is not yet fully cured, so that prepregs are obtained that can be shaped in almost any way, which facilitates their further processing.
- these prepregs do not harden as quickly at room temperature and air access as the prepregs known from the prior art and thus have a significantly increased storage stability.
- fiber composite materials The materials which can be obtained as just described and in which the production is carried out in a second stage in the presence of synthetic and / or natural fibers can be referred to as fiber composite materials. These fiber composite materials have a number of fields of application due to their excellent application properties. Accordingly, the present invention further relates to the use of these fiber composite materials for the production of components for vehicle construction, aircraft construction, the construction industry, window construction, the furniture industry, the electrical industry, sports equipment, toys, machine and apparatus construction, the packaging industry and agriculture or security technology.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10003939A DE10003939A1 (en) | 2000-01-29 | 2000-01-29 | Preparation of a radically crosslinked polymer, comprises reacting the reaction product of epoxidized fatty acid esters or triglycerides with (meth)acrylic acid with isocyanates and crosslinking |
DE10003939 | 2000-01-29 | ||
PCT/EP2001/000646 WO2001055236A1 (en) | 2000-01-29 | 2001-01-22 | Method for production of radically post-cured polymers by addition of reactive anhydrides |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1261656A1 true EP1261656A1 (en) | 2002-12-04 |
Family
ID=7629197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01909669A Withdrawn EP1261656A1 (en) | 2000-01-29 | 2001-01-22 | Method for production of radically post-cured polymers by addition of reactive anhydrides |
Country Status (4)
Country | Link |
---|---|
US (1) | US20030134927A1 (en) |
EP (1) | EP1261656A1 (en) |
DE (1) | DE10003939A1 (en) |
WO (1) | WO2001055236A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070181302A1 (en) * | 2004-12-30 | 2007-08-09 | Sun Drilling Products Corporation | Method for the fracture stimulation of a subterranean formation having a wellbore by using thermoset polymer nanocomposite particles as proppants, where said particles are prepared by using formulations containing reactive ingredients obtained or derived from renewable feedstocks |
DE102006041121A1 (en) * | 2006-09-01 | 2008-03-13 | Hobum Oleochemicals Gmbh | Process for the preparation of cold-cured biopolymers |
US8343634B2 (en) * | 2009-01-27 | 2013-01-01 | Momentive Specialty Chemicals Inc. | Triglyceride compositions useful for preparing composite panels and applications thereof |
US8076006B2 (en) * | 2009-01-27 | 2011-12-13 | Momentive Specialty Chemicals Inc. | Triglyceride compositions useful for preparing composite panels and applications thereof |
WO2014127785A1 (en) | 2013-02-20 | 2014-08-28 | Ganymed Pharmaceuticals Ag | Combination therapy involving antibodies against claudin 18.2 for treatment of cancer |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3979270A (en) * | 1972-01-05 | 1976-09-07 | Union Carbide Corporation | Method for curing acrylated epoxidized soybean oil amine compositions |
US3876432A (en) * | 1972-09-11 | 1975-04-08 | Sun Chemical Corp | Fatty ester modified epoxy resin photopolymerizable compositions |
US4119640A (en) * | 1975-07-10 | 1978-10-10 | Union Carbide Corporation | Polymerizable epoxide-modified compositions |
IT1227066B (en) * | 1988-09-15 | 1991-03-14 | Ausimont Spa | Alkylene. POLYURETHANE RETICULABLE RUBBER, CONTAINING POLYOXYPERFLUORO BLOCKS |
CA2032992C (en) * | 1989-12-29 | 2001-04-10 | Peter H. Quednau | Dispersing agents, their use and solids coated therewith |
US5521246A (en) * | 1994-07-25 | 1996-05-28 | Air Products And Chemicals, Inc. | Low temperature self-crosslinking aqueous urethane-vinyl polymers for coating applications |
AT405150B (en) * | 1996-03-12 | 1999-05-25 | Constantia Iso Holding Aktieng | METHOD FOR PRODUCING A WEATHER-RESISTANT, DECORATIVE MOLDED PART |
AT405151B (en) * | 1996-03-12 | 1999-06-25 | Constantia Iso Holding Aktieng | METHOD FOR PRODUCING A WEATHER-RESISTANT, DECORATIVE MOLDED PART |
AT407250B (en) * | 1996-12-23 | 2001-01-25 | Constantia Iso Holding Ag | SINGLE LAYER MULTI-ZONE URETHANIZATION COATING METHOD |
-
2000
- 2000-01-29 DE DE10003939A patent/DE10003939A1/en not_active Withdrawn
-
2001
- 2001-01-22 EP EP01909669A patent/EP1261656A1/en not_active Withdrawn
- 2001-01-22 WO PCT/EP2001/000646 patent/WO2001055236A1/en not_active Application Discontinuation
- 2001-01-22 US US10/182,472 patent/US20030134927A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO0155236A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20030134927A1 (en) | 2003-07-17 |
WO2001055236A1 (en) | 2001-08-02 |
DE10003939A1 (en) | 2001-08-02 |
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