WO2003106061A1 - Procede de production de surfaces a proprietes anticoagulantes - Google Patents

Procede de production de surfaces a proprietes anticoagulantes Download PDF

Info

Publication number
WO2003106061A1
WO2003106061A1 PCT/EP2003/004768 EP0304768W WO03106061A1 WO 2003106061 A1 WO2003106061 A1 WO 2003106061A1 EP 0304768 W EP0304768 W EP 0304768W WO 03106061 A1 WO03106061 A1 WO 03106061A1
Authority
WO
WIPO (PCT)
Prior art keywords
coagulation
solvent
particles
inhibiting
objects
Prior art date
Application number
PCT/EP2003/004768
Other languages
German (de)
English (en)
Inventor
Markus Oles
Edwin Nun
Original Assignee
Creavis Gesellschaft Für Technologie Und Innovation Mbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Creavis Gesellschaft Für Technologie Und Innovation Mbh filed Critical Creavis Gesellschaft Für Technologie Und Innovation Mbh
Priority to AU2003226828A priority Critical patent/AU2003226828A1/en
Publication of WO2003106061A1 publication Critical patent/WO2003106061A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B17/00—Methods preventing fouling
    • B08B17/02—Preventing deposition of fouling or of dust
    • B08B17/06—Preventing deposition of fouling or of dust by giving articles subject to fouling a special shape or arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B17/00—Methods preventing fouling
    • B08B17/02—Preventing deposition of fouling or of dust
    • B08B17/06—Preventing deposition of fouling or of dust by giving articles subject to fouling a special shape or arrangement
    • B08B17/065—Preventing deposition of fouling or of dust by giving articles subject to fouling a special shape or arrangement the surface having a microscopic surface pattern to achieve the same effect as a lotus flower

Definitions

  • the present invention relates to a method for producing surfaces with anti-coagulation properties and articles with such anti-coagulation surfaces.
  • Coagulation can be triggered by three systems: a platelet system, an intrinsic system, or an extrinsic system.
  • the activation of coagulation by the platelet system belongs to the primary hemostasis
  • the activation by the intrinsic or extrinsic system belongs to the secondary hemostasis.
  • Intrinsic and extrinsic systems differ both in the activation time and in the activation of different coagulation cascades. These are of no further interest for the present invention.
  • the so-called primary hemostasis is based on the adhesion and aggregation of platelets on the surface. They are activated by injuries or touching the surface.
  • the object of the present invention was therefore to generate surfaces in which the contact activation of the coagulation (clumping) of the blood is prevented or delayed.
  • CH-PS-268 258 describes a method in which structured surfaces are produced by applying powders such as kaolin, talc, clay or silica gel. The powders are fixed on the surface by oils and resins based on organosilicon compounds (Examples 1 to 6).
  • EP 0 909 747 teaches a method for producing a self-cleaning surface.
  • the surface has hydrophobic elevations with a height of 5 to 200 ⁇ m.
  • Such a surface is produced by applying a dispersion of powder particles and an inert material in a siloxane solution and then curing.
  • the structure-forming particles are thus fixed to the substrate by an auxiliary medium.
  • WO 00/58410 comes to the conclusion that it is technically possible to make the surfaces of objects artificially self-cleaning.
  • the surface structures of elevations and depressions required for this have a distance between the elevations of the surface structures in the range from 0.1 to 200 ⁇ m and a height of the elevation in the range 0.1 to 100 ⁇ m.
  • the materials used for this must consist of hydrophobic polymers or permanently hydrophobized material. Detachment of the particles from the carrier matrix must be prevented.
  • hydrophobic materials such as perfluorinated polymers
  • hydrophobic surfaces are known.
  • a further development of these surfaces consists in structuring the surfaces in the ⁇ m range to the nm range.
  • US Pat. No. 5,599,489 discloses a method in which a surface can be given a particularly repellent finish by bombardment with particles of a corresponding size and subsequent perfluorination.
  • Another method describes H. Saito et al. in "Service Coatings International", 4, 1997, p.168 ff.
  • particles of fluoropolymers are applied to metal surfaces, with a greatly reduced wettability of the surfaces thus produced against water with a significantly reduced tendency to icing.
  • the principle is borrowed from nature. Small contact areas reduce Van-der Waal's interaction, which is responsible for the adhesion to flat surfaces with low surface energy.
  • the leaves of the lotus plant are provided with raised areas made of wax, which reduce the contact area with water.
  • DE 101 18 348 describes polymer fibers with self-cleaning surfaces in which the self-cleaning surface is obtained by the action of a solvent which has structure-forming particles, dissolving of the surface of the polymer fibers by the solvent, adhering the structure-forming particles to the detached surface and removing the solvent becomes.
  • the disadvantage of this method is that when the polymer fibers are processed (spinning, knitting, etc.), the structure-forming particles and thus the structure which causes the self-cleaning surface can be damaged or, under certain circumstances, can even be lost entirely and the self-cleaning effect can also be lost goes.
  • DE 101 18 346 describes textile fabrics with a self-cleaning and water-repellent surface, made up of at least one synthetic and / or natural textile base material A and an artificial, at least partially hydrophobic surface with elevations and depressions made of particles which are free from adhesives, resins or lacquers
  • Base material A are firmly connected, which are obtained by treating the base material A with at least one solvent which contains the particles in undissolved form and removing the solvent, at least some of the particles being firmly connected to the surface of the base material A.
  • the disadvantage of this process is based on a very complex finishing of the textile surfaces. With this process it is necessary that the solvent has to be exactly matched to the base material of the textiles. In the case of garments, however, there are usually mixed fabrics, which makes this coordination even more complicated. If the solvents are not properly matched, parts of the garment may be destroyed. Treatment of the textile surfaces is therefore necessary before tailoring.
  • WO 00/58410 describes a process for the production of removable coatings with dirt and water-repellent properties, the latter being produced by spraying on hydrophobic alcohols, such as nonacosan-10-ol or alkane diols, such as nonacosan-5,10-diol or waxes.
  • hydrophobic alcohols such as nonacosan-10-ol or alkane diols, such as nonacosan-5,10-diol or waxes.
  • These coatings are strong mechanical forces such. B. scratching, brushing or high pressure treatment with water or by treatment with water, which contains detergents that dissolve some of the structuring agents, from the objects.
  • a disadvantage of this is the strong forces that are necessary to mechanically remove the coating, so that there is always the risk that the object itself will also be damaged when the coating is removed. Treatment with water containing detergents can also damage the item, depending on the nature of the item.
  • DE 101 35 157 describes a method for coating textiles during a chemical cleaning process, in which structure-forming particles are added to the cleaning agent.
  • Relatively aggressive organic solvents such as e.g. B. Trichlorethylene proposed, the use of which leads to a mechanical anchoring of the particles on the structure of the textiles, which can lead to damage to the object to be coated.
  • microstructured, hydrophobic surfaces such as can be used as self-cleaning surfaces, prevent or greatly reduce the clotting of blood. These surfaces must have properties that are required by so-called lotus surfaces. Surprisingly, no or very little contact activation of the blood coagulation was found on the lotus surfaces
  • the present invention therefore relates to a method for producing Objects with coagulation-inhibiting surfaces, which is characterized in that the objects are equipped with a self-cleaning surface consisting of elevations and / or depressions, the elevations being at a distance of 20 nm to 100 ⁇ m and a height of 20 nm to 100 ⁇ m.
  • the present invention also relates to the use of the method according to the invention for producing coagulation-inhibiting surfaces in carpets, articles of clothing, mattresses, feather beds, wallpapers, protective covers or blankets.
  • the present invention also relates to articles, in particular carpets, articles of clothing, mattresses, feather beds, wallpapers, protective covers, blankets and textiles, which are characterized in that they have a surface which is resistant to coagulation and has been produced by the process according to the invention.
  • the present invention additionally relates to objects obtainable by the process according to the invention, which are characterized in that they have a coagulation-inhibiting surface which has a hydrophobic surface structure comprising elevations with an average height of 50 nm to 25 ⁇ m and an average distance of 50 nm up to 25 ⁇ m.
  • the method according to the invention has the advantage that it is very easy to carry out.
  • permanent or temporary anti-coagulation surfaces with self-cleaning properties are provided, from which blood which has not clotted can be removed by moving water.
  • the method according to the invention for the production of objects with anti-coagulation surfaces is described below by way of example, without the invention being restricted to these.
  • the method is based on the use of lotus effect surfaces, that is to say surfaces with self-cleaning properties, which have surprisingly been found to have anti-coagulation effects.
  • the method according to the invention for the production of objects with coagulation-inhibiting surfaces is therefore characterized in that the objects are equipped with a self-cleaning surface consisting of elevations and / or depressions, the elevations being a distance of 20 nm to 100 ⁇ m and a height of 20 nm have up to 100 ⁇ m.
  • the objects can e.g. B. be selected from foils, wallpapers, fiber-containing objects, containers, transport vessels, storage vessels or blood vessels.
  • Objects containing preferred fibers are knitted, woven, nonwoven or felted objects.
  • the fiber-containing articles are particularly preferably selected from upholstery, carpets, carpets, mattresses, feather beds, protective covers, blankets, industrial textiles or clothing, in particular clothing from the laboratory or hospital sector.
  • the objects can also be blood storage or transport vessels, such as. B. syringes, blood bags, blood vessels or analysis tubes.
  • objects with anti-coagulation surfaces are those objects which are in direct contact with blood or the body of humans and / or animals.
  • the method according to the invention very particularly preferably produces objects with coagulation-inhibiting surfaces which are in direct contact with the blood of humans and / or animals, since the risk of blood clotting is particularly high in such objects.
  • Particularly good self-cleaning and anti-coagulation properties are achieved if the surface structure has hydrophobic elevations with a height of 50 nm to 20 ⁇ m, preferably from 500 nm to 10 ⁇ m and very particularly preferably from 0.1 to 5 ⁇ m and a distance of less than 100 ⁇ m, preferably have a distance of 50 nm to 75 ⁇ m and very particularly preferably of 500 nm to 5 ⁇ m.
  • the surface structure can be created on the surface of the objects themselves. This can e.g. B. done in that a surface structure is generated by applying and fixing particles on the surface of the objects. The particles can be applied and fixed by gluing, embossing, rolling or storing on or in the surface of the objects.
  • Various newer fixation or embossing methods which are not to be described in more detail here, can be found, inter alia, in patent applications DE 10129116, DE 10138036 and DE 10134477.
  • the particles in the production of fibers are introduced into the surface of the polymer by means of a gas stream after the polymer melt has emerged from the spinneret (DE 10129116).
  • the particles are fixed to the polymer fibers by solidification of the polymers. Fixation methods are similar to those skilled in the art, in which the particles are introduced into a viscous surface or applied to a viscous surface, and the viscous surface solidifies by cooling, evaporation of solvents or by chemical reaction.
  • Another method, as described in DE 10134477, for producing self-cleaning surfaces with a self-regenerating self-cleaning effect, in which a suitable, at least partially hydrophobic surface structure is created by fixing particles on a surface by means of a carrier, is based on the use of a mixture Particles and binder.
  • a carrier that does not contain any particles is also conceivable, which then corresponds to a normal adhesive process.
  • Particles which can be used are particles which comprise at least one material selected from silicates, doped or pyrogenic silicates, minerals, metal oxides, silicas. Have metals or polymers.
  • particles are used which have a particle diameter of 0.02 to 100 ⁇ m, particularly preferably from 0.03 to 50 ⁇ m and very particularly preferably from 0.03 to 1 ⁇ m.
  • the objects according to the invention preferably have surfaces in which the individual particles are present on the surface at intervals of 0 to 10 particle diameters, in particular 4 to 8 or 1 to 3 particle diameters.
  • the particles can also be in the form of aggregates or agglomerates, in accordance with DIN 53 206 being understood as aggregates of primary particles (particles) which are planar or edge-to-edge and agglomerates of primary particles (particles) which are mutually punctiform.
  • particles it is also possible to use particles which aggregate from primary particles to form agglomerates or aggregates with a size of 0.2 to 100 ⁇ m.
  • the particles used have a structured surface. Particles which have an irregular fine structure in the nanometer range on the surface are preferably used.
  • the fine structure of the particles is preferably a jagged structure with elevations and / or depressions in the nanometer range.
  • the elevations preferably have an average height of 20 to 500 nm, particularly preferably 50 to 200 nm.
  • the distance between the elevations or depressions on the particles is preferably less than 500 nm, very particularly preferably less than 200 nm.
  • particles in particular as particles which have an irregular fine structure in the nanometer range on the surface, those particles are preferably used which have at least one compound selected from pyrogenic silica, aluminum oxide, silicon oxide, pyrogenic silicates or powdered polymers or metals. It can be advantageous if the particles used have hydrophobic properties. Particularly suitable particles are, inter alia, hydrophobicized pyrogenic silicas, so-called aerosils.
  • the surfaces have particles which have hydrophobic properties.
  • the hydrophobic properties of the particles may be inherent due to the material used for the particles.
  • hydrophobized particles can also be used, which, for. B. by treatment with at least one compound from the group of alkylsilanes, perfluoroalkylsilanes, paraffins, waxes, fatty acid esters, functionalized long-chain alkane derivatives or alkyldisilazanes, have hydrophobic properties.
  • the surface structure is produced as a film or on a film which is transferred to the surface of the object which is to be provided with an anti-coagulation surface. The production of such films is e.g. B.
  • DE 10138036 the structure of which is formed by elevations, are distinguished by the fact that adjacent elevations are connected by ridges which have a lower average height than the elevations connected by them.
  • the ridges connecting the surveys achieve a significantly higher stability of the structures. Any other negative form with which surveys of the required dimensions can be produced can also be used.
  • the embossing can be done by embossing or rolling or, in the case of macroscopic shaping of the objects, by casting, injection molding or in mold decoration (IMD) onto the surface.
  • IMD injection molding or in mold decoration
  • the self-cleaning surface is particularly preferably applied by applying a suspension which has particles in a solvent and then removing the solvent. Applying the suspension to at least one surface of an object may e.g. B. by immersing the object in the suspension or by spraying, spraying, brushing or spreading the suspension onto the object or at least one surface of the object.
  • Solvent at least one suitable compound which does not dissolve the surface of the object to be treated, from the group of alcohols, glycols, ethers, glycol ethers, ketones, esters, amides, nitro compounds, halogenated hydrocarbons, aliphatic and aromatic hydrocarbons or a mixture thereof.
  • This embodiment of the method according to the invention is preferably carried out with objects which have a surface which is dissolved by a solvent and which are preferably polymers based on polycarbonates, poly (meth) acrylates, polyamides, PVC, polyethylenes, polypropylenes, aliphatic linear or has branched alkenes, cyclic alkenes, polystyrenes, polyesters, polyether sulfones, polyacrylonitrile or polyalkylene terephthalates, and also their mixtures or copolymers.
  • a suitable solvent is preferably at least one compound suitable as a solvent for the corresponding surface from the group of alcohols, glycols, ethers, glycol ethers, ketones, esters, amides, nitro compounds, halogenated hydrocarbons, aliphatic and aromatic hydrocarbons or mixtures thereof are used.
  • At least one compound which is suitable as a solvent for the corresponding surface is selected from methanol, ethanol, propanol, butanol, octanol, cyclohexanol, phenol, cresol, ethylene glycol, diethylene glycol, diethyl ether, dibutyl ether, anisole, dioxane, dioxolane, tetrahydrofuran, Monoethylene glycol ether, diethylene glycol ether,
  • Triethylene glycol ether polyethylene glycol ether, acetone, butanone, cyclohexanone, ethyl acetate, butyl acetate, iso-amylacetate, ethylhexyl acetate, glycol ester, dimethylformamide, pyridine, N-methylpyrrolidone, N-methylcaprolactone, acetonitrile, carbon disulfide, dimethylsulformomethane, chlorolethane, chloromethane, chloromethane, chloromethane, chloromethane, chlorofluoromethane, chlorofluoromethane, chlorofluoromethane, chloroform, Trichlorethylene, tetrachlorethylene, 1,2-dichloroethane, chlorophenol, chlorofluorocarbons, gasolines, petroleum ether, cyclohexane, methylcyclohexane, decalin, tetralin, terpenes, benzene, to
  • the solvent in which solvents, which particles have, applied to the surface of objects, the solvent preferably has a temperature of -30 ° C to 300 ° C, preferably 25 to 100 ° C, before application to the surface.
  • the surfaces produced by means of the method according to the invention are dirt and water repellent and anti-coagulation and preferably have elevations, preferably formed by the particles and optionally the fine structure of the particles, with an average height of 50 nm to 20 ⁇ m, preferably 500 nm to 10 ⁇ m and very particularly preferably from 1 to 5 ⁇ m and an average distance less than 100 ⁇ m, preferably a distance from 50 nm to 75 ⁇ m and very particularly preferably from 500 nm to 5 ⁇ m.
  • the mean distance between the elevations is understood to mean the distance between the highest elevation of one elevation and the next highest elevation. If an elevation has the shape of a cone, the tip of the cone represents the highest elevation of the elevation.
  • the top surface of the cuboid represents the highest elevation of the elevation.
  • the average width of the elevations is preferably from 50 nm to 25 ⁇ m, preferably from 100 nm to 10 ⁇ m and very particularly preferably 0.3 to 1 ⁇ m.
  • the average width of the surveys is measured at half the height of the surveys and averaged over the smallest and largest width.
  • the mean width of a cone or a cylinder thus corresponds to the diameter of the cylinder or cone halfway up.
  • the average width of a cube is the average of the length of the side surface plus the length of the surface diagonals.
  • the surfaces produced by means of the method according to the invention preferably have a contact angle for water of greater than 145 °, preferably greater than 150 °, particularly preferably greater than 155 ° and very particularly preferably greater than 160 °.
  • Water drops of 60 ⁇ l roll off the surfaces according to the invention, preferably at an inclination angle of less than 5 °, preferably less than 2 °, from an inclined surface.
  • the following surfaces have proven to be particularly suitable surfaces, but the invention is not intended to be limited to these. With these surfaces, the Coagulation-inhibiting property is particularly pronounced: surface with a combination structure of coarse structure and fine structure (V 13), surface with a periodic structure (distance of the elevations 2 ⁇ m), surface with a periodic moth eye structure (distance of the elevations 0.5 ⁇ m) and polyester fabric coated with a hydrophobic silica (Aerosil R8200, Degussa AG). These surfaces are discussed in more detail in the examples.
  • the method according to the invention can be used to produce articles which are equipped with a water- and dirt-repellent coating on at least one surface.
  • the objects or the surfaces to be coated can be made from a wide variety of substances, such as. B. consist of metal, plastic, polymer, wood, ceramic or glass.
  • the method according to the invention can be used in particular for the production of anti-coagulation surfaces in carpets, articles of clothing, mattresses, duvets, wallpapers, protective covers, curtains, curtains, bed covers, blankets or containers, vessels or blood vessels.
  • the objects mentioned can be retrofitted with anti-coagulation surfaces as well as by using appropriately equipped objects in the manufacture, e.g. B. can be obtained by using fibers or fabrics that have anti-coagulation properties.
  • carpets, articles of clothing, mattresses, feather beds, wallpapers, protective covers, blankets, textiles and in particular items of clothing are covered by the subject matter of the invention.
  • Blood collection vessels or blood storage bags such as are present in blood banks, for example, with the method according to the invention with anticoagulants Surfaces. It is also possible to provide artificial blood vessels on their inner surface with an anti-coagulation surface. Such artificial vessels can prevent blood from clotting in the artificial blood vessels, which is why such artificial blood vessels are particularly well tolerated. Such surfaces are typically used in dialysis.
  • the method according to the invention or objects which have been produced using this method are explained in more detail with reference to FIGS. 1 to 4, without the invention being restricted to these embodiments.
  • FIG. 1 and 2 show a scanning electron microscope image (SEM image) of a self-cleaning surface produced according to the invention, which has a periodic coarse structure, superimposed by a periodic fine structure in the deep form (VI 3).
  • FIG. 3 shows an SEM image of a polyester fabric according to Example 1.
  • FIG. 4 shows an image of the same object with a magnification 10 times greater than that used in FIG. 3.
  • a volunteer patient was drawn blood into a tube.
  • the blood which had no additional anticoagulants, was applied to surfaces with self-cleaning properties (lotus effect surfaces) in order to check the behavior of blood drops on these surfaces.
  • lotus effect surfaces were used:
  • the films with the lotus effect were produced as follows: 1. Production of a self-cleaning surface with a periodic structure of 2 ⁇ m or 0.5 ⁇ m.
  • a glass pane was coated with a highly viscous positive photoresist ma - P1275, with a lacquer thickness of> 10 ⁇ m.
  • the structure was generated by irradiating a cross grating (2 ⁇ m or 0.5 ⁇ m period). Coherent laser light with a dose of 2 x 70 mJ / cm 2 and a wavelength of 364 nm was used to produce the structure. After exposure, a highly concentrated developer was used to develop the structure.
  • the photoresist was sputtered with a gold layer as a piater base and then electroplated in nickel. With the nickel shim thus produced, the structure was molded in a hydrophobic, UV-curing lacquer system (based on acrylate), which can be used as a film.
  • a saddle depth of 9 ⁇ m which corresponds to a peak to peak depth of> 10 ⁇ m, could be achieved.
  • a highly concentrated developer was used to develop the structure.
  • the photoresist was sputtered with a gold layer as a piater base and then electroplated in nickel. With the nickel shim thus produced, the structure was molded in a hydrophobic, UV-curing lacquer system (based on acrylate), which can be used as a film.
  • the roll angle of the blood drops (60 ⁇ l each) was measured in comparison to a water drop of the same size.
  • the blood drops or water drops were pipetted onto the respective surfaces and the surfaces were then inclined until the blood or water drops rolled off. This angle of inclination of the surface corresponds to the roll angle.
  • a roll angle that was 1 to 5 ° higher in the blood than in the water was found. This increased roll angle is probably due to the higher viscosity of blood.
  • a polyester fabric with lotus effect which was made as follows. A commercially available polyester fabric is immersed in a suspension of decalin and 1% by weight of Aerosil R8200 (Degussa AG) heated to 80 ° C. After a contact time of 30 seconds, the tissue is removed from the suspension and dried at room temperature. After a drying time of 5 hours, the fabric is dry and can be used for the tests.

Landscapes

  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

Procédé de production de surfaces à propriétés anticoagulantes, et objets qui possèdent ces surfaces anticoagulantes. L'effet anticoagulant desdites surfaces repose sur le fait que la coagulation du sang ou l'activation de la coagulation sont considérablement réduites ou ralenties sur ces surfaces. En raison de leurs propriétés anticoagulantes et autonettoyantes, ces surfaces peuvent être nettoyées lors d'un processus de nettoyage simple avec de l'eau courante. Ces surfaces peuvent être tant des surfaces textiles que des surfaces polymères. Des structures constituées de bosses et de creux, telles qu'elles ont été décrites à maintes reprises, sont appliquées sur ces surfaces. L'application des revêtements selon la présente invention peut être effectuée de manière très simple par application d'une dispersion des particules adaptées dans un solvant sur la surface concernée et par élimination subséquente du solvant. Des vêtements ou des objets de la vie quotidienne, comportant d'autres textiles, tels que par ex. des matelas ou des couvertures peuvent être équipés des surfaces anticoagulantes selon la présente invention.
PCT/EP2003/004768 2002-06-12 2003-05-07 Procede de production de surfaces a proprietes anticoagulantes WO2003106061A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003226828A AU2003226828A1 (en) 2002-06-12 2003-05-07 Method for producing surfaces having coagulation-inhibiting properties

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10226022A DE10226022A1 (de) 2002-06-12 2002-06-12 Verfahren zur Herstellung von Oberflächen mit coagulationshemmenden Eigenschaften
DE10226022.2 2002-06-12

Publications (1)

Publication Number Publication Date
WO2003106061A1 true WO2003106061A1 (fr) 2003-12-24

Family

ID=29594409

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/004768 WO2003106061A1 (fr) 2002-06-12 2003-05-07 Procede de production de surfaces a proprietes anticoagulantes

Country Status (3)

Country Link
AU (1) AU2003226828A1 (fr)
DE (1) DE10226022A1 (fr)
WO (1) WO2003106061A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004014574A2 (fr) * 2002-07-25 2004-02-19 Creavis Gesellschaft Für Technologie Und Innovation Mbh Procede de production de surfaces structurees
WO2004048450A1 (fr) * 2002-11-23 2004-06-10 Creavis Gesellschaft Für Technologie Und Innovation Mbh Materiau composite hydrophobe permeable a des substances gazeuses et presentant des caracteristiques d'autonettoyage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004037812B4 (de) * 2004-08-04 2007-07-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verwendung eines ausgehärteten Gemisches enthaltend ein Matrixpolymer und eine hydrophobe und/oder oleophobe Komponente als schmutzabweisende Schutzschicht
DE102005052404A1 (de) * 2005-10-31 2007-05-03 Goldschmidt Gmbh Verfahren zur Herstellung von ablösbaren biostatischen flächigen Beschichtungen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000062942A2 (fr) * 1999-04-16 2000-10-26 Institut Für Neue Materialien Gem. Gmbh Substrats munis d'une surface microstructuree, procede permettant de les produire et leur utilisation
DE19944169A1 (de) * 1999-09-15 2001-03-29 Georg Gros Mittel zur Herstellung von selbstreinigenden dünnen Oberflächenbeschichtungen und dafür geeignete Verfahren
EP1206976A2 (fr) * 2000-11-17 2002-05-22 Basf Aktiengesellschaft Utilisation d'appareils avec des surfaces difficilement mouillables

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000062942A2 (fr) * 1999-04-16 2000-10-26 Institut Für Neue Materialien Gem. Gmbh Substrats munis d'une surface microstructuree, procede permettant de les produire et leur utilisation
DE19944169A1 (de) * 1999-09-15 2001-03-29 Georg Gros Mittel zur Herstellung von selbstreinigenden dünnen Oberflächenbeschichtungen und dafür geeignete Verfahren
EP1206976A2 (fr) * 2000-11-17 2002-05-22 Basf Aktiengesellschaft Utilisation d'appareils avec des surfaces difficilement mouillables

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004014574A2 (fr) * 2002-07-25 2004-02-19 Creavis Gesellschaft Für Technologie Und Innovation Mbh Procede de production de surfaces structurees
WO2004014574A3 (fr) * 2002-07-25 2004-06-03 Creavis Tech & Innovation Gmbh Procede de production de surfaces structurees
WO2004048450A1 (fr) * 2002-11-23 2004-06-10 Creavis Gesellschaft Für Technologie Und Innovation Mbh Materiau composite hydrophobe permeable a des substances gazeuses et presentant des caracteristiques d'autonettoyage

Also Published As

Publication number Publication date
AU2003226828A1 (en) 2003-12-31
DE10226022A1 (de) 2003-12-24

Similar Documents

Publication Publication Date Title
EP1249468A2 (fr) Surfaces autonettoyantes par structures hydrophobes et procédé pour leur préparation
EP1472011B1 (fr) Procede pour realiser des couches de protection ayant des proprietes antisalissures et hydrofuges
EP1318228A1 (fr) Procédé pour fabriquer des objets pourvus des surfaces antiallergiques
EP1379725B1 (fr) Produit plat textile pourvu d'une surface auto-nettoyante et hydrofuge
EP1519994B1 (fr) Procede pour produire une suspension sans tensioactif, a base de particules hydrophobes nanostructurees, et utilisation de ladite suspension
DE10205783A1 (de) Formkörper mit selbstreinigenden Eigenschaften und Verfahren zur Herstellung solcher Formkörper
EP1674611A1 (fr) Procédé pour accoitre l'étanchéité à l'eau de tissus textiles, produits ainsi traités et leur utilisation
EP2196491B1 (fr) Surface polymeres fluorees hydrophobes
WO2007048630A1 (fr) Revetement super hydrophobe d'un non tisse polymere
WO2003074194A2 (fr) Surfaces hydrophiles
EP2557206B1 (fr) Procédé de fabrication d'un produit en nano-fibres de polyamide par électrofilage, produit en nano-fibres de polyamide, un support de filtre équipé du produit en nano-fibres de polyamide ainsi qu'un élément de filtre doté d'un tel support de filtre
DE102004062740A1 (de) Verfahren zur Erhöhung der Wasserdichtigkeit von textilen Flächengebilden, so ausgerüstete textile Flächengebilde sowie deren Verwendung
DE10242560A1 (de) Herstellung von selbstreinigenden Oberflächen auf textilen Beschichtungen
EP1475426A1 (fr) Procédé de fabrication des revêtements amovibles repoussant à salissure et l'eau
WO2002084013A2 (fr) Fibre polymere a surface autonettoyante et hydrophobe
DE69827751T2 (de) Dauerhafte hydrophile Beschichtung für Textilien
WO2003106061A1 (fr) Procede de production de surfaces a proprietes anticoagulantes
DE10135157A1 (de) Verfahren zum Aufbringen einer selbstreinigenden Beschichtung auf Textilien
EP0232398B1 (fr) Procede de modification superficielle du polytetrafluorethylene, corps moules a la base du polytetrafluorethylene ainsi que leur application
DE10129116A1 (de) Polymerfasern mit selbstreinigenden Eigenschaften, die in der Oberfläche Partikel aufweisen sowie ein Verfahren zu deren Herstellung
Rivero Fuente et al. Electrospinning technique as a powerful tool for the design of superhydrophobic surfaces
DE19851687A1 (de) Verfahren zur hydrophilen Ausrüstung von Fasern auf Basis von Polyolefinen oder Polyester unter Einsatz von Alkylethoxylaten
DE19918439A1 (de) Wasserdichter, wasserdampfdurchlässiger Kunststoffilm

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PH PL PT RO RU SC SD SE SG SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP