EP1755792A1 - Procede pour enduire des substrats electriquement conducteurs - Google Patents

Procede pour enduire des substrats electriquement conducteurs

Info

Publication number
EP1755792A1
EP1755792A1 EP05752763A EP05752763A EP1755792A1 EP 1755792 A1 EP1755792 A1 EP 1755792A1 EP 05752763 A EP05752763 A EP 05752763A EP 05752763 A EP05752763 A EP 05752763A EP 1755792 A1 EP1755792 A1 EP 1755792A1
Authority
EP
European Patent Office
Prior art keywords
acid
powder coating
layer
coating material
electrically conductive
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Withdrawn
Application number
EP05752763A
Other languages
German (de)
English (en)
Inventor
Heinrich Wonnemann
Lars Hof
Werner BLÖMER
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 Coatings GmbH
Original Assignee
BASF Coatings GmbH
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 Coatings GmbH filed Critical BASF Coatings GmbH
Publication of EP1755792A1 publication Critical patent/EP1755792A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/542—No clear coat specified the two layers being cured or baked together
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
    • B05D7/04—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber to surfaces of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/544—No clear coat specified the first layer is let to dry at least partially before applying the second layer
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
    • C08G59/42—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/03—Powdery paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/03—Powdery paints
    • C09D5/033—Powdery paints characterised by the additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
    • C09D5/4488—Cathodic paints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/007—Processes for applying liquids or other fluent materials using an electrostatic field

Definitions

  • the present invention relates to a new method for coating electrically conductive substrates, in which
  • Thermally curable hybrid powder coatings are known to contain epoxy resins and carboxyl-containing polyester resins as binders. They are referred to as hybrid powder attacks because two classes of binders are processed in a mixture.
  • the mixing ratio between epoxy resin and polyester resin varies from 60:40 to 10:90. The exact mixing ratio is determined by the specific requirements of the application.
  • the hybrid powder coatings are generally thermally hardened or baked in the temperature window of 150 to 220 ° C. The necessary times at object temperature are 20 minutes at 150 ° C and less than 5 minutes at 220 ° C.
  • the hybrid powder coatings provide coatings with excellent mechanical-technological properties. Erichsen cuppings up to the sheet crack and bending radii of T0 are not uncommon. In the salt spray test, infiltration of ⁇ 2 mm is found even after 2,000 hours of exposure. The coatings are resistant to yellowing and are only slightly susceptible to chalking. Due to their advantageous properties, their application ranges from smooth primer powders for the wheel and vehicle industry to enamel effect powders for the household appliance industry. Radiators, computer housings, office furniture and electrical switch boxes are also coated with hybrid powder coatings.
  • hybrid powder coatings are mainly used in coil coating processes, in which they are applied to metal strips and cured. The coated metal strips or parts thereof are then brought into the desired shape, for example by deep drawing. It is not known whether this hybrid powder coating also results in combination with electro-dipping coatings with excellent application properties.
  • Powdery coating materials or powder coatings which contain polyester, polyacrylate resins and epoxy resins as binders. Depending on the complementary reactive functional groups present in the binders, carboxylic anhydrides, aminoplast resins, blocked polyisocyanates, diamines, imidazoles, dihydrazides or epoxides can be used as crosslinking agents.
  • the powder coatings contain hydroxyl groups, aliphatic or aromatic, crystalline compounds having a melting point between 30 C C and 150 ° C as a leveling agent in combination with a conventional leveling agent.
  • the use of the hydroxyl-containing crystalline compounds has the disadvantage.
  • the present invention was therefore based on the object of finding a new process for coating electrically conductive substrates, in which
  • the dried electrodeposition coating (s) and layer (s) of the powder coating material or the coating materials cure together, whereby the electrodeposition coating and the powder coating result; which no longer has the disadvantages of the prior art, but instead provides coatings which have a particularly high interlayer adhesion between electrocoating and powder coating on the one hand and powder coating and other coatings above that and a particularly high resistance to condensation water and no delamination even after heavy exposure to moisture, Show radiation and / or mechanical action.
  • the coatings produced with the aid of the new process should continue to have all the other advantages described above, which are associated with the use of hybrid powder coatings. Last but not least, the new process should make it possible to provide powder coatings in smaller layer thicknesses without losing their particular advantages.
  • the new process for coating electrically conductive substrates is referred to below as the “process according to the invention”.
  • the process according to the invention no longer had the disadvantages of the prior art, but instead provided coatings which had a particularly high interlayer adhesion between electro-dip coating and powder coating on the one hand and powder coating and other coatings above it and a particularly high resistance to condensation water and none Delamination showed even after heavy exposure to moisture, radiation and / or mechanical impact.
  • the coatings produced using the new process continued to show all the other advantages outlined above with the use of Hybrid powder coatings go hand in hand. Last but not least, the new process made it possible to provide powder coatings in smaller layer thicknesses without losing their particular advantages.
  • the method according to the invention serves to coat electrically conductive substrates.
  • the electrically conductive substrates have an electrically conductive surface, so that the electrocoat materials can be deposited thereon in a customary and known manner by applying an electrical voltage.
  • the electrical conductivity is given from the start.
  • non-metallic substrates such as substrates made of plastics, it can be adjusted by coating the surface with metallic layers, electrically conductive organic polymers or coatings which contain electrically conductive pigments.
  • the electrically conductive substrates are bodies of means of transportation, especially car bodies, and parts thereof, structures and parts thereof, doors, windows, furniture, small industrial parts and mechanical, optical and electronic components.
  • the electrically conductive substrates can be switched as an anode or a cathode. They are preferably switched as cathode for the purposes of cathodic electrocoating.
  • the electrocoat materials are preferably applied in wet film thicknesses so that after the electrocoat film layers have hardened, electrocoat materials with layer thicknesses of 10 to 60, preferably 15 to 50 and in particular 15 to 40 ⁇ m result.
  • Electrodeposition paints are described in Japanese Patent Application 1975-142501 (Japanese Patent Application Laid-Open JP 52-065534 A 2, Chemical Abstracts Section No. 87: 137427) or in Patent Specifications and Applications US 4,375,498 A1, US 4,537,926 A1, US 4,761,212 A1 , EP 0 529 335 A1, DE 41 25 459 A1, EP 0 595 186 A1, EP 0 074 634 A1, EP 0 505 545 A1, DE 42 35 778 A1, EP 0 646 420 A. 1, EP 0 639 660 A1, EP 0 817 648 A1, DE 195 12 017 C1, EP 0 192 113 A2, DE 41 26476 A1 or WO 98/07794.
  • the electrocoat layer is thermally hardened immediately after its application, which results in the electrocoat.
  • the electrodeposition coating is then coated with at least one, in particular one, powder coating material or powder coating.
  • the electrocoat layer is dried without completely curing it and then coated with at least one, in particular one, powder coating, after which the electrocoat layer and the powder coating layer are cured together.
  • the layer thicknesses of the powder coatings can be reduced in this way without the application properties profile of the coatings being affected.
  • At least one, especially one, thermally curable, powdery coating material or Pulveriack is used, preferably at least one epoxy resin (A) having a melting point, a melting range or glass transition temperature> 30 ° C> 40 ⁇ C contains in particular> 50 ⁇ C.
  • Suitable epoxy resins (A) are all customary and known epoxy resins as are usually used for the production of hybrid powder coatings.
  • Epoxy resins (A) based on bisphenol A are preferably used, preferably with an epoxy equivalent weight of 500 to 1,000 g / equivalent and in particular 600 to 900 g / equivalent.
  • the epoxy resins (A) are commercially available products are sold, for example, by the Huntsman company under the Araldit ® GT 6063 brand.
  • the content of epoxy resin (A) in the powder pack can vary widely and depends on the requirements of the individual case.
  • the content is preferably 30 to 70% by weight, in particular 40 to 60% by weight, based on the powder coating.
  • the powder coating contains at least a polyester resin (B) having a melting point, a melting range or glass transition temperature> 30 ° C, preferably> 40 ⁇ C in particular> 50 ° C.
  • Suitable polyester resins (B) are all customary and known polyester resins as are customarily used for the production of hybrid powder coatings. These are preferably polyester resins with an acid number of 25 to 100, in particular 30 to 80 mg KOH / g.
  • polyester resins (B) are from the patent applications
  • At least two, in particular two, polyester resins (B) of different acid numbers are preferably used in order to adjust the acid number of component (B) in the range described above.
  • polyester resins (B) are commercially available products and are sold, for example, by UCB under the brand Alftalat ® AN 722 or 783.
  • the content of polyester resins (B) in the powder coating can vary very widely and depends on the requirements of the individual case, in particular on the type and number of complementary reactive functional groups in the epoxy resins (A).
  • the content is preferably 15 to 75 and in particular 20 to 60% by weight, based on the powder coating.
  • the powder coating comprises at least one, especially one, polycarboxylic acid (C) ⁇ having a melting point between 80 and 160 ° C and especially 90 to 155 C.
  • the polycarboxylic acid (C) is preferably selected from the group consisting of saturated and unsaturated, in particular saturated, aliphatic, cycloaliphatic and aliphatic-cycloaliphatic, in particular aliphatic, polycarboxylic acids.
  • the polycarboxylic acids (C) from the group consisting of malonic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, 1,11-undecanedioic acid, 1,12-dodecanedioic acid, 1,13-tridecanedioic acid, 1,14-tetradecanedioic acid are preferred , 1,15-hexadecanedioic acid, 1, 20-eicosanedioic acid, 1,22-docosanedioic acid and hexanetricarboxylic acid. And in particular, 1,12-dodecanedioic acid is used.
  • the polycarboxylic acids (C) at least one monocarboxylic acid in minor amounts having a melting point between 80 and 160 ⁇ C and in particular contain from 90 to 155 ° C, provided they do not form low melting eutectics with the polycarboxylic acids (C).
  • “Minor amount” means that the monocarboxylic acid makes up no more than 40% by weight, preferably no more than 30% by weight and in particular no more than 10% by weight of the total amount of polycarboxylic acid (C) and monocarboxylic acid.
  • suitable monocarboxylic acids are salicylic acid and benzoic acid.
  • the polycarboxylic acids (C) are preferably present in the powder coating in an amount of 0.5 to 10% by weight and in particular 2 to 6% by weight, based on the powder coating. They can be present as a separate phase (C) in addition to the powder coating particles. Or part of the polycarboxylic acids (C) is in the powder coating particles and the other part is in a separate phase (C). The total amount of polycarboxylic acids (C) is preferably contained in the powder coating particles.
  • the polycarboxylic acids (C) act as leveling agents for the powder coating, although they react with the epoxy resins (A) and into which from the Powder coating can be built in during the thermal hardening or stoving, thermosetting, three-dimensional network of the coatings.
  • the amounts of constituents (A), (B) and (C) are preferably chosen so that the equivalent ratio of carboxyl groups to epoxy groups is 0.55 to 1.2, in particular 0.55 to 0.99.
  • the powder coating may also contain at least one additive (D), as is usually used in powder coatings.
  • additives are described in detail in the German patent applications
  • the powder coating can also be pigmented and contain customary and known, color and / or effect pigments.
  • suitable pigments are described in detail in German patent application DE 100 58 860 A1, page 8, paragraph [0056], to page 9, paragraph [0067].
  • the production of the powder coating has no special features in terms of method, but can be carried out using the customary and known processes.
  • the components of the powder pack can be mixed with one another in conventional and known mixing units such as extruders.
  • the resulting mixtures are comminuted after solidification with the aid of customary and known grinding units and, if appropriate, sifted.
  • the powder coating can also be produced by mixing the constituents with the aid of melt emulsification, cooling the melt and isolating the suspended particles (cf. German patent application DE 101 26 649 A1).
  • the particle size distribution of the powder coating can vary comparatively widely and depends on the particular intended use.
  • the particle size distribution is preferably comparatively narrow with only a very small proportion of coarse particles (particle sizes above 95 ⁇ m) and of very fine particles (particle sizes below 5 ⁇ m).
  • a powder coating with the particle size distribution described in European Patent EP 0 666 779 B1 can also be used.
  • the application of the powder coating to the electrodeposition coating or the electrodeposition coating layer has no special features in terms of method, but is instead carried out with the aid of customary and known methods and devices (cf. the company lettering from BASF Coatings AG, "Pulveriacke - powder coatings for industrial applications", January 2000).
  • the curing of the electrocoat layers and the powder coating layers has no special features in terms of method, but rather takes place with the aid of the customary and known devices and methods, in particular using IR radiation, NIR radiation and / or hot air, preferably conventional and known radiant heaters and convection ovens be applied.
  • the electrocoat layers and powder coating layers are preferably cured at temperatures> 150 ° C., in particular> 170 ° C.
  • the process according to the invention provides coatings which have an excellent flow even at high layer thicknesses and show no surface defects and no whitening after exposure to moisture.
  • the coatings have excellent mechanical-technological properties and are particularly smooth. At the same time, they are resistant to chemicals, weather and yellowing and have little, if any, chalk susceptibility.
  • the coatings can easily be overpainted, which is of great importance for automotive refinishing, for example.
  • the method according to the invention has yet another, unexpected advantage.
  • Add-on parts made of plastic, which have been pretreated in a suitable manner, can already be electro-coated on the electrically conductive parts
  • Substrates in particular car bodies, built into the substrates and with co-coated with the powder coating material, which significantly simplifies and shortens the overall coating process.
  • Table 1 The material composition of the hybrid powder coatings 1 to 5 (examples 1 to 5) and V1 (comparative tests V1) and essential application properties
  • Lutonal® A 25 leveling agent from BASF Aktiengesellschaft
  • Licowax® R 21 (wax from Clariant) 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
  • the hybrid powder clearcoats 1 to 5 and V1 had very good storage stability, flowability and fluidizability and could therefore be stored, decanted and applied without any problems.
  • the hybrid powder coatings 1 to 5 had a significantly better flow than the hybrid powder coating V1.
  • the GPF served as an indicator of the viscosity and reactivity of a powder coating. The distance measured by a powder coating during baking at 175 ° C on an aluminum plate inclined by 60 ° was measured. Glass plates were originally used in this test, but their heat conduction was unfavorable.
  • the hybrid powder coating 1 to 5 had significantly longer gel times than the hybrid powder coating V1.
  • the minimum viscosity of the hybrid powder coating V1 (T: 151 to 154 ° C) was significantly higher than that of the hybrid powder coating 1 to 5.
  • the Hybridpulveriacke were applied in a conventional manner in a powder coating installation electrostatically onto steel panels which had been coated with a cathodic electrodeposition coating such that after baking at 175 C C for 25 minutes coatings 1 to 5 and V1 with layer thicknesses between 35 and 75 ⁇ m resulted.
  • the course of the coatings was measured with the aid of the wave scan DOI instrument from BYK-Gardner in the measuring range Wd (3 to 10 mm).
  • the measured Wd values were plotted as a function of the layer thickness.
  • the respective Wd values for the layer thicknesses 50 and 60 ⁇ m were determined from the resulting curves. Table 2 gives an overview of these Wd values.
  • the Wd values confirmed that the coatings 1 to 5 had a significantly better course than the coating V1.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)

Abstract

L'invention concerne un procédé pour enduire des substrats électriquement conducteurs, selon lequel (1) une couche de peinture est appliquée par immersion électrophorétique et durcie sur un substrat électriquement conducteur pour réaliser une enduction électrophorétique par immersion, (2) sur laquelle est ensuite appliquée et durcie une couche de matériau de recouvrement pulvérulent pour réaliser une peinture par poudrage. Il est aussi possible, selon ce procédé, (1) d'appliquer sur un substrat électriquement conducteur une couche de peinture par immersion électrophorétique et de la faire sécher sans la laisser durcir complètement, (2) d'appliquer sur la(les) couche(s) de peinture électrophorétique séchées une couche de matériau de recouvrement pulvérulent, et (3) de faire durcir ensemble la couche de peinture électrophorétique séchée et la couche de matériau de recouvrement pulvérulent, pour obtenir une enduction électrophorétique par immersion et une peinture par poudrage. Le matériau de recouvrement pulvérulent contient (A) au moins une résine époxy ayant un point de fusion, une plage de fusion ou une température de transition vitreuse > 30 °C, (B) au moins une résine polyester contenant des groupes carboxyle et ayant un point de fusion, une plage de fusion ou une température de transition vitreuse > 30 °C, et (C) au moins un acide polycarboxylique dont le point de fusion se situe entre 80 et 160 °C.
EP05752763A 2004-06-05 2005-05-25 Procede pour enduire des substrats electriquement conducteurs Withdrawn EP1755792A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004027650A DE102004027650A1 (de) 2004-06-05 2004-06-05 Verfahren zum Beschichten elektrisch leitfähiger Substrate
PCT/EP2005/052407 WO2005120724A1 (fr) 2004-06-05 2005-05-25 Procédé pour enduire des substrats électriquement conducteurs

Publications (1)

Publication Number Publication Date
EP1755792A1 true EP1755792A1 (fr) 2007-02-28

Family

ID=34979078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05752763A Withdrawn EP1755792A1 (fr) 2004-06-05 2005-05-25 Procede pour enduire des substrats electriquement conducteurs

Country Status (7)

Country Link
US (1) US7862851B2 (fr)
EP (1) EP1755792A1 (fr)
JP (1) JP2008501499A (fr)
KR (1) KR20070040366A (fr)
CN (1) CN1964797A (fr)
DE (1) DE102004027650A1 (fr)
WO (1) WO2005120724A1 (fr)

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US7862851B2 (en) 2011-01-04
US20070224337A1 (en) 2007-09-27
WO2005120724A1 (fr) 2005-12-22
JP2008501499A (ja) 2008-01-24
DE102004027650A1 (de) 2006-01-05
KR20070040366A (ko) 2007-04-16

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