[go: up one dir, main page]

WO2006008153A1 - Surfaces anti-salissures - Google Patents

Surfaces anti-salissures Download PDF

Info

Publication number
WO2006008153A1
WO2006008153A1 PCT/EP2005/007926 EP2005007926W WO2006008153A1 WO 2006008153 A1 WO2006008153 A1 WO 2006008153A1 EP 2005007926 W EP2005007926 W EP 2005007926W WO 2006008153 A1 WO2006008153 A1 WO 2006008153A1
Authority
WO
WIPO (PCT)
Prior art keywords
elevations
depressions
diameter
hydrophobic
present
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.)
Ceased
Application number
PCT/EP2005/007926
Other languages
German (de)
English (en)
Inventor
Horst Weiss
Erich HÄDICKE
Harald Keller
Florian MÜLLER-PLATHE
Sandeep Pal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of WO2006008153A1 publication Critical patent/WO2006008153A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/16—Surface shaping of articles, e.g. embossing; Apparatus therefor by wave energy or particle radiation, e.g. infrared heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
    • B29C2059/023—Microembossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0092—Other properties hydrophilic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0093—Other properties hydrophobic

Definitions

  • the present invention relates to hydrophobic surfaces with depressions or elevations, wherein the depressions have a diameter of up to 20 nm and a depth of at least 0.5 nm and the elevations have a diameter of up to 20 nm and a height of at least 0, 5 nm, processes for producing such Ober ⁇ surfaces, objects with such structured surfaces, and the use of the surfaces according to the invention for the production of windows of vehicles and aircraft, headlights, and parts for the fuselage and wings of aircraft, in particular for the production coatings on windows of vehicles and airplanes, on headlamps, and parts for the fuselage and wings of aircraft.
  • WO 96/04123 describes self-cleaning surfaces having an artificial surface structure of elevations and depressions, wherein the distance between the elevations in the range of 5 to 200 microns and the height of the elevations in the range of 5 to 100 microns.
  • methods for producing such surfaces are disclosed.
  • US 2004/0026832 likewise discloses processes for producing dirt-repellent surfaces. By means of an embossing technique, microstructures are introduced into the surface. Such surfaces with structures of the order of magnitude of 100 nm are particularly suitable for electronic applications according to US 2004/0026832.
  • US 2002/0150726 discloses self-cleaning surfaces which are produced by applying particles to the surface.
  • the particles to be applied to the surface themselves have a structuring which is in the range of nanometers, that is 1 to about 1000 nm.
  • the process according to US 2002/0150726 achieves that the particle size of the particles to be applied can vary.
  • the process for coating surfaces is expensive and therefore expensive, since both the coating and the subsequent hydrophobization of the surface must ensure that the structuring of the particles themselves is retained.
  • ultraphobic surfaces are disclosed, wherein the roughness of the surface topography is expressed by the integral of a function of the spatial frequency of the individual Fourier components and their amplitude.
  • the claimed roughness can be obtained by different structures, whose size range can vary widely.
  • such surfaces can be obtained by coating metal or plastic substrates with a metal.
  • this object is achieved by a hydrophobic surface with depressions or elevations, wherein the depressions have a diameter of up to 20 nm and a depth of at least 0.5 nm and the elevations have a diameter of up to 20 nm and a height of at least 0 , 5 nm.
  • Such surfaces have the advantage that no further coating is necessary, but the surface itself has the structuring which leads to the hydrophobic properties of the surface.
  • the surfaces according to the invention can thus be produced easily and cost-effectively.
  • the surfaces according to the invention have the advantage that the structuring in the nanometer range can be used on a micrometer scale in combination with other structurings already known and thus the hydrophobic properties can be enhanced.
  • depressions are understood as meaning regular and irregularly shaped depressions, in particular holes and stripes in the surface. Holes in the sense of the present invention are depressions whose diameter is comparably large in all directions, that is to say whose width corresponds approximately to the length. Strips in the sense of the present invention are depressions whose length is greater than the width. For the purposes of the invention, depressions are understood to mean no through pores, that is to say not open on both sides of a substrate.
  • the depressions in the surface have a diameter of up to 20 nm, preferably less than 20 nm, for example less than 15 nm, in particular less than 10 nm, particularly preferably less than 7.5 nm and more than 1 nm , in particular less than 5 nm and more than 1.5 nm, especially preferably of less than 3 nm and more than 2 nm, more preferably about 2.5 nm.
  • the depth of the wells is according to the invention at least 0.5 nm, preferably at least 1 nm, more preferably 5 nm, for example at least 10 nm, in particular at least 15 nm.
  • the present invention relates to a hydrophobic surface wherein the diameter of the pits is less than 5 nm and more than 1.5 nm and the depth is at least 1 nm.
  • the diameter of the strips in this case refers to the width of the strip, which is preferably less than 20 nm, for example less than 15 nm, preferably less than 10 nm, in particular less than 7.5 nm and more than 1 nm, especially be ⁇ preferably less than 5 nm and more than 1.5 nm.
  • the length of the strips can vary within wide ranges. In particular, it is possible that the strips have a length of less than 30 nm, for example less than 25 nm, preferably less than 20 nm.
  • the surfaces according to the invention can also have elevations.
  • the diameter of the elevations can also be comparably large in all directions, that is, the width corresponds approximately to the length of the elevations.
  • the length of the survey is greater than the width.
  • the elevations on the surface have a diameter of up to 20 nm, preferably less than 20 nm, for example less than 15 nm, in particular less than 10 nm, particularly preferably less than 7.5 nm and more than 1 nm , in particular of less than 5 nm and more than 1.5 nm, more preferably of less than 3 nm and more than 2 nm, more preferably of about 2.5 nm.
  • the height of the elevations is according to the invention at least 0.5 nm Height of the elevations may vary and is in particular at least 0.5 nm and less than 200 nm, preferably less than 100 nm, more preferably less than 50 nm.
  • the height of the elevations of 0.5 nm to 10 nm, preferably from 0.5 nm to 7.5 nm, in particular from 0.5 nm to 5 nm.
  • the present invention therefore relates to a hydrophobic surface with elevations, wherein the diameter of the elevations is less than 5 nm and more than 1.5 nm and the height of 0.5 nm to 5 nm.
  • the depressions may be holes and strips.
  • the holes are preferably symmetrical structures. According to the invention, holes are particularly preferred.
  • the surface according to the invention may have one or more depressions or elevations, preferably several depressions or elevations.
  • the surface can also have elevations and depressions.
  • the recesses may be of the same type, i. only holes or just stripes.
  • a surface has holes or elevations with different diameters.
  • the surface it is also possible for the surface to have a further structuring, for example in the micrometer range, in addition to the structuring according to the invention in the nanometer range.
  • the surface it is preferable for the surface to have a plurality of depressions or elevations, that is to say that the surface portion of the depressions or elevations is as large as possible. It is particularly advantageous if the proportion of depressions or elevations is 10 to 95% of the total surface area, preferably 10 to 60% of the total surface area, particularly preferably 10 to 50%, for example 20 to 30% of the total surface area.
  • the present invention therefore relates to a hydrophobic surface, the proportion of depressions or elevations being from 10 to 95% of the total surface area.
  • the surfaces according to the invention may consist of any suitable material, preferably of a hydrophobic material which is structurally stable.
  • Particularly suitable according to the invention are hydrophobic polymers or waxes, for example silicone polymers.
  • Suitable polymers are, for example, polyolefins such as polyethylene, polypropylene, polyisoprene, polybutadiene, polyisobutylene, and also polyamides, polycarbonates, polystyrene, polyacrylonitrile, polytetrafluoroethylene, polydimethylsiloxane, polyesters, polyurethanes, Polyacrylates, polymethacrylates, melamine-formaldehyde polymers, urea-formaldehyde polymers or waxes such as montan ester waxes, paraffin waxes, Sili ⁇ konwachse or fluoropolymer-containing waxes.
  • polyolefins such as polyethylene, polypropylene, polyisoprene, polybutadiene, polyisobutylene, and also polyamides, polycarbonates, polystyrene, polyacrylonitrile, polytetrafluoroethylene, polydimethylsiloxane, polyesters,
  • blends or copolymers comprising a hydrophobic polymer, in particular one of the abovementioned preferred polymers.
  • Polymers which are suitable according to the invention are also block copolymers comprising blocks of said polymers, for example block copolymers containing styrene and butadiene blocks or styrene and isoprene blocks.
  • Crosslinkable polymers are particularly suitable in the context of the present invention.
  • the present invention relates to a hydrophobic surface, wherein the surface consists of a hydrophobic polymer.
  • the surface does not consist entirely of a hydrophobic material, but rather that a thin hydrophobic layer is applied to a surface with recesses or elevations in order to produce a surface according to the invention.
  • the present invention relates to a hydrophobic surface, wherein a water layer in contact with this surface at a distance of 0.2 to 0.6 nm from the surface in comparison to the same area in contact with a planar, non-inventive surface in order has more than 10% reduced water density, in particular a water density reduced by more than 20%, particularly preferably a water density reduced by more than 25%.
  • the surface is additionally treated, for example hydrophobized.
  • the present invention therefore also relates to a hydrophobic surface, wherein the surface has been rendered hydrophobic.
  • antiadhesive is also understood, for example, as meaning that organisms, in particular microorganisms such as fungi and spores, or dirt, adhere poorly to the surface and liquids, for example water and aqueous solutions or dispersions, drain well.
  • Recesses were generated in the model by shortening the carbon chain of n-eicosane molecules by 4 carbon atoms. It was for the triangular holes 3
  • the chemical potentials for the water obtained from the data show that, in the case of a surface with depressions, the chemical potential is increased by about 1 RT compared to a planar surface. These values are temperature stable. Thus, the model calculations also show that the depressions in the nanometer range lead to an increase in the hydrophobicity of a hydrophobic material and render it more water-repellent.
  • the surfaces according to the invention can be prepared by any suitable method. The surfaces can be produced, for example, by mechanical processes such as embossing or AFM arrays or by nanolithography, microcontact printing or by self-assembly.
  • prestructuring of the surface means the presence of regions on the surface, the regions having different chemical properties, for example different solubility or different chemical resistance.
  • size of the areas of the surface present through the pre-structuring is likewise in the nanometer range.
  • the pre-structuring can be achieved, for example, by microphase separation or micelle formation.
  • polymer blends often have amorphous and crystalline regions, that is, pre-structuring.
  • the distribution of the regions can be controlled via the preparation of the polymers, for example over the cooling times in an extrusion process.
  • the present invention therefore also relates to a process for producing a hydrophobic surface with depressions or elevations, wherein the depressions have a diameter of up to 20 nm and a depth of at least 0.5 nm and the elevations have a diameter of up to 20 nm and a height of at least 0.5 nm, comprising chemically treating a pre-structured surface utilizing the different chemical resistance or solubility of the different regions of the surface.
  • the pre-structuring can also be obtained by other methods, for example by irradiation of the surface.
  • the present invention therefore also relates to a method for producing a hydrophobic surface comprising the steps of (1) irradiating a surface, (2) chemically treating a surface obtained in step (1).
  • the method may also comprise further steps, for example a chemical treatment before or after step (1).
  • the irradiation according to step (1) can be ionizing radiation or plasma bombardment, in particular UV irradiation of the surface or bombardment with heavy ions, for example argon ions.
  • UV irradiation and heavy ion bombardment can also be combined.
  • the present invention relates to a method for producing a hydrophobic surface, wherein the irradiation according to step (1) is UV irradiation or heavy ion bombardment.
  • the chemical treatment according to step (2) can comprise one or more treatments, for example with hydrogen peroxide, with potassium permanganate, solutions of oxidizing agents in organic solvents, with sodium hydroxide solution or with acetic acid.
  • the structure of the surface by first irradiating the surface of an object with heavy ions, followed by a chemical etching process.
  • Such methods are described, for example, in E. Ferain, R. Legras, Nucl. Iiistr. and Meth. in Phys. Res. B 208 (2003) 115-122 or L. Dauginet-De Pra, E. Ferain, R. Legras, S. Demoustier-Champagne, Nucl. Instr. and Meth. in Phys. Res. B 196 (2002) 81-88, wherein the processes described therein are modified such that the depressions according to the invention are obtained.
  • the present invention also relates to the use of a membrane or film, preferably of a hydrophobic material, having pores with a diameter of less than 20 nm for producing a hydrophobic surface.
  • a membrane or film preferably of a hydrophobic material, having pores with a diameter of less than 20 nm for producing a hydrophobic surface.
  • Dirt-repellent surfaces are used in particular for frequently used surfaces, for example for the glazing of facades, for surfaces in the sanitary area, for example in swimming pools.
  • Hydrophobic surfaces according to the present invention are also suitable for the preparation of small microscale articles.
  • the surfaces according to the invention are particularly suitable for the production of electronic devices and optical glasses, in which a cleaning would be very complicated and expensive.
  • the present invention also relates to the use of a surface according to the invention or a surface obtainable by a method according to the invention for the production of panels for facade cladding, roofs made of plastic glass, window frames, furniture, watercraft, sports equipment, spielnger surfboards or skis Glazing of vehicles and aircraft, for headlamps and for optical glasses. It is important, in particular, for the windows of vehicles and aircraft and for headlamps, that they remain transparent, that neither dirt nor ice formation prevents visibility or light transmission.
  • the present invention relates to the use of a surface according to the invention or a surface obtainable by a process according to the invention for producing panes of vehicles and aircraft and headlamps, in particular for the production of coatings on windows of vehicles and aircraft , from headlights.
  • the surfaces according to the invention also have ice-repellent properties, thus preventing or reducing the formation of ice.
  • the surfaces according to the invention are also suitable for all applications in which ice must be avoided, for example, for windows of vehicles and aircraft and for headlights or for parts of the fuselage and wings of aircraft.
  • the present invention also relates to the use of a surface according to the invention or a surface obtainable by a method according to the invention for producing parts of the fuselage and wings of aircraft, in particular for the production of coatings of parts for fuselage and wings of aircraft ,
  • the surfaces according to the invention are suitable for the production of articles with dirt-repellent properties.
  • Objects within the meaning of the present invention are planar and non-planar objects. It is also possible to produce a film with a surface according to the invention, which can then be applied to any object, so that the article has dirt-repellent properties.
  • the objects can also be made of transparent materials, such as polymers.
  • the article consists of the same material as the surface according to the invention.
  • the article is made of a different material and the surface according to the invention is applied in a further step.
  • the present invention therefore also relates to articles having a surface according to the invention or a surface obtainable by a process according to the invention, for example facade panels, headlights, optical glasses or windows for vehicles or aircraft or parts of the fuselage and wings of aircraft ,

Landscapes

  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne des surfaces hydrophobes à creux et reliefs, les creux présentant un diamètre atteignant 20 nm et une profondeur d'au moins 0,5 nm, et les reliefs présentant un diamètre atteignant 20 nm et une hauteur d'au moins 0,5 nm. L'invention concerne également un procédé de production de telles surfaces, des objets ayant des surfaces ainsi structurées, ainsi que l'utilisation des surfaces selon l'invention pour la production de vitres de véhicules et d'aéronefs, de phares, et d'éléments pour le fuselage et les surfaces portantes d'aéronefs.
PCT/EP2005/007926 2004-07-21 2005-07-20 Surfaces anti-salissures Ceased WO2006008153A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004035204.6 2004-07-21
DE102004035204 2004-07-21

Publications (1)

Publication Number Publication Date
WO2006008153A1 true WO2006008153A1 (fr) 2006-01-26

Family

ID=35115738

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/007926 Ceased WO2006008153A1 (fr) 2004-07-21 2005-07-20 Surfaces anti-salissures

Country Status (1)

Country Link
WO (1) WO2006008153A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2913231A1 (fr) * 2007-03-02 2008-09-05 Essilor Int Article ayant une surface nanotexturee a proprietes superhydrophobes.
WO2011020964A1 (fr) 2009-08-19 2011-02-24 Aircelle Procede d'implantation ionique pour la realisation d'une surface anti-glace
WO2011094344A1 (fr) * 2010-01-28 2011-08-04 President And Fellows Of Harvard College Structures pour empêcher la fixation de microorganismes
WO2011094508A1 (fr) * 2010-01-28 2011-08-04 President And Fellows Of Harvard College Surfaces super-hydrophobes à motifs pour réduire la formation, l'adhérence et l'accumulation de glace
WO2013108001A1 (fr) 2012-01-19 2013-07-25 British American Tobacco (Investments) Limited Séparation sélective de composés à teneur en nitroso
EP3238839A1 (fr) * 2016-04-29 2017-11-01 Deutsche Institute für Textil- und Faserforschung Denkendorf Objet doté d'une surface réduisant la friction et en particulier provoquant le dégazage de liquides

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010051273A1 (en) * 1999-05-03 2001-12-13 Guardian Industries Hydrophobic coating including DLC on substrate
FR2829406A1 (fr) * 2001-09-12 2003-03-14 Commissariat Energie Atomique Surface autonettoyante et/ou antisalissure et/ou anticondensation
US20040037961A1 (en) * 2002-08-26 2004-02-26 Cedric Dieleman Production of surfaces to which liquids do not adhere

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010051273A1 (en) * 1999-05-03 2001-12-13 Guardian Industries Hydrophobic coating including DLC on substrate
FR2829406A1 (fr) * 2001-09-12 2003-03-14 Commissariat Energie Atomique Surface autonettoyante et/ou antisalissure et/ou anticondensation
US20040037961A1 (en) * 2002-08-26 2004-02-26 Cedric Dieleman Production of surfaces to which liquids do not adhere

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2913231A1 (fr) * 2007-03-02 2008-09-05 Essilor Int Article ayant une surface nanotexturee a proprietes superhydrophobes.
WO2008116994A3 (fr) * 2007-03-02 2008-11-27 Essilor Int Article ayant une surface nanotexturee a proprietes superhydrophobes
US8298649B2 (en) 2007-03-02 2012-10-30 Essilor International (Compagnie Generale D'optique) Article having a nanotextured surface with superhydrophobic properties
WO2011020964A1 (fr) 2009-08-19 2011-02-24 Aircelle Procede d'implantation ionique pour la realisation d'une surface anti-glace
FR2949236A1 (fr) * 2009-08-19 2011-02-25 Aircelle Sa Procede d'implantation ionique pour la realisation d'une surface hydrophobe
WO2011094344A1 (fr) * 2010-01-28 2011-08-04 President And Fellows Of Harvard College Structures pour empêcher la fixation de microorganismes
WO2011094508A1 (fr) * 2010-01-28 2011-08-04 President And Fellows Of Harvard College Surfaces super-hydrophobes à motifs pour réduire la formation, l'adhérence et l'accumulation de glace
CN102834124A (zh) * 2010-01-28 2012-12-19 哈佛大学校长及研究员协会 防止微生物附着的结构
WO2013108001A1 (fr) 2012-01-19 2013-07-25 British American Tobacco (Investments) Limited Séparation sélective de composés à teneur en nitroso
EP3238839A1 (fr) * 2016-04-29 2017-11-01 Deutsche Institute für Textil- und Faserforschung Denkendorf Objet doté d'une surface réduisant la friction et en particulier provoquant le dégazage de liquides

Similar Documents

Publication Publication Date Title
EP1171529B1 (fr) Procede de realisation de surfaces autonettoyantes pouvant etre retirees
EP1283076B1 (fr) Surfaces auto-nettoyantes grâce à des structures hydrophobes et leur procédé de préparation
DE10118349A1 (de) Selbstreinigende Oberflächen durch hydrophobe Strukturen und Verfahren zu deren Herstellung
EP0933388B1 (fr) Surfaces structurelles avec propriétés hydrophobes
EP0772514B1 (fr) Surfaces autonettoyantes d'objets et leur procede de production
EP1249281B1 (fr) Surface auto-nettoyante avec une structure hydrophobe et procédé pour sa réalisation
EP1249280A2 (fr) Surfaces auto-nettoyantes avec des structures hydrophobes et procédé pour leur réalisation
EP1674535A1 (fr) Surfaces auto-nettoyantes ayant une surface structurée composée de particules hydrophobiques structurelles et de particules de cires
WO2003013827A1 (fr) Surfaces structurees a effet lotus
EP1283077A1 (fr) Obtention de l'effet Lotus par prévention de la croissance microbienne sur des surfaces auto-nettoyantes
US20150044421A1 (en) Medical devices and instruments with non-coated superhydrophobic or superoleophobic surfaces
DE10239071A1 (de) Verfahren zur Herstellung von Oberflächen, auf denen Flüssigkeiten nicht haften
EP1474280A1 (fr) Corps moule ayant des proprietes autonettoyantes et procede de realisation d'un corps moule de ce type
DE102006036863B4 (de) Mechanisch stabile poröse Membran, Verfahren zu ihrer Herstellung und ihre Verwendung
WO2014135353A1 (fr) Production de nanorevêtements définis
DE10134362A1 (de) Strukturierte Oberflächen mit Lotus-Effekt
WO2006008153A1 (fr) Surfaces anti-salissures
WO2006082180A1 (fr) Composant presentant un revetement concu pour reduire la mouillabilite de la surface et procede pour le produire
Behera et al. Fabrication of nanostructures with excellent self-cleaning properties
DE102007044159A1 (de) Metallwerkstoffe mit hybrid-stabilisierter Oxidschicht, Verfahren zu der Herstellung sowie deren Verwendung
DE3528181C2 (fr)
DE102009003898A1 (de) Turbinenschaufeln und andere massive Bauteile
DE19747813A1 (de) Nanostrukturierung von Oberflächen
DE102008027040B4 (de) Verfahren zur Herstellung eines flächigen Applikationsmaterials
EP1216847A2 (fr) Film décoratif en matière synthétique

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 BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY 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): GM KE LS MW MZ NA 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 IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase