EP0367653B2 - Verfahren zur Beschichtung eines Metallsubstrats mit Pulvergrundierungsschicht und mittels Tauchen angebrachte Oberflächenbeschichtung und so erhaltene Materialien - Google Patents

Verfahren zur Beschichtung eines Metallsubstrats mit Pulvergrundierungsschicht und mittels Tauchen angebrachte Oberflächenbeschichtung und so erhaltene Materialien Download PDF

Info

Publication number
EP0367653B2
EP0367653B2 EP89402897A EP89402897A EP0367653B2 EP 0367653 B2 EP0367653 B2 EP 0367653B2 EP 89402897 A EP89402897 A EP 89402897A EP 89402897 A EP89402897 A EP 89402897A EP 0367653 B2 EP0367653 B2 EP 0367653B2
Authority
EP
European Patent Office
Prior art keywords
powder
coating
substrate
primer
adhesion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89402897A
Other languages
English (en)
French (fr)
Other versions
EP0367653A1 (de
EP0367653B1 (de
Inventor
Jean-Yves Dutheil
Eric Perraud
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.)
Arkema France SA
Original Assignee
Atofina SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9371527&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0367653(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Atofina SA filed Critical Atofina SA
Publication of EP0367653A1 publication Critical patent/EP0367653A1/de
Application granted granted Critical
Publication of EP0367653B1 publication Critical patent/EP0367653B1/de
Publication of EP0367653B2 publication Critical patent/EP0367653B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/546—No clear coat specified each layer being cured, at least partially, separately
    • 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
    • B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
    • B05D1/22—Processes for applying liquids or other fluent materials performed by dipping using fluidised-bed technique
    • B05D1/24—Applying particulate 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
    • B05D7/56—Three layers or more
    • B05D7/58—No clear coat specified
    • B05D7/587—No clear coat specified some layers being coated "wet-on-wet", the others not
    • 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
    • B05D2202/00—Metallic substrate
    • B05D2202/10—Metallic substrate based on Fe
    • 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
    • B05D2451/00—Type of carrier, type of coating (Multilayers)

Definitions

  • the present invention relates to a method for coating a metal substrate with a coating surface applied by soaking after coating said substrate with a powdered primer.
  • the fluidized bed soaking process requires preheating of the metal part to be coated before immersion in the porous bottom tank in which the powder of the suspension coating is kept in suspension by air circulation: the powder then melts on contact with metal surfaces hot and forms a deposit whose thickness depends on the temperature of the substrate and its immersion time in the powder.
  • the part is preheated in an oven at a temperature determined according to the nature and the thickness of the part to be coated.
  • too high a preheating temperature can be harmful, more particularly in the case where the metal part has previously been coated with an adhesion primer which can degrade when the part passes through the oven and / or no longer ensures adhesion with the surface coating and the metal substrate.
  • adhesion primers for surface coatings applied by dipping are presented exclusively in liquid form, that is to say the primary resins are either in suspension, either in solution in one or more solvents.
  • the coating of metallic substrates with these liquid primers is done for example using a pneumatic gun.
  • adhesion primers developed by the applicant are in the form of compositions powder, applicable as is on metal substrates.
  • the metal substrate which has previously been able to undergo one or more surface treatments such as degreasing alkaline, brushing, shot blasting phosphating, hot rinsing ..., is coated with one or more layers of powder adhesion primer.
  • the metal substrate can be chosen from a wide range of products. It can be steel parts ordinary or galvanized, of aluminum or aluminum alloy parts, the steel parts being more particularly targeted for the invention.
  • the thickness of the metal substrate is not critical in itself, it will most often be between 1 and 50 mm.
  • the application of the powdered primer composition according to the invention can be carried out according to the techniques powder application usually used.
  • the powder application techniques include electrostatic spraying, a technique particularly preferred for the application of primer according to the invention, soaking in a fluidized bed.
  • the powder In electrostatic projection the powder is introduced into a gun where it is transported by air compressed and passed through a nozzle brought to a high potential, generally between ten and one hundred kilovolts.
  • the applied voltage can be of positive or negative polarity, negative polarity being generally preferred.
  • the powder flow in the gun is generally between 10 and 200 g / min.
  • powders with an average particle size of between 5 and 100 ⁇ m can be used, and preferably between 5 and 80 ⁇ m.
  • the average thickness of the primer is between 10 and 20 ⁇ m.
  • the powder compositions which constitute the adhesion primer according to the invention are based solid thermosetting resins and preferably based on epoxy resins and hardener (s) epoxy resin (s).
  • thermosetting resin in the present description is meant epoxy resins, resins phenolic, epoxyphenolic precondensates, alone or as a mixture.
  • epoxy resins examples include the products obtained by bisphenol-A and epichlorohydrin reaction and the degree of polymerization of which is greater than two as well than high molecular weight polycondensates of the phenoxy type without free reactive group.
  • phenolic resins By way of example of advantageously preferred phenolic resins, mention may be made of the resins obtained by polycondensation of formaldehyde and a phenol.
  • the compounds are preferably used amine, acid anhydride or isocyanate type.
  • amine-type compound means aliphatic or aromatic amines and their derivatives, such as dicyandiamide, benzyldimethylamine, boron trifluoride monoethylamine.
  • acid anhydride By way of example of acid anhydride, mention may be made of aromatic anhydrides such as phthalic anhydride or cycloaliphtalics such as hexahydrophthalic anhydride.
  • isocyanate type compound means a monomer, prepolymer or polymer compound containing at least two free or blocked isocyanate groups.
  • Polyisocyanate compounds with an aromatic structure or aliphatic whose isocyanate groups are blocked by condensation with phenol or caprolactam are particularly preferred.
  • the proportion of epoxy resin (s) and hardener (s) of amine, acid anhydride or isocyanate type must be such that the number of epoxide functions is equal to the number of reactive functions of the amine of acid anhydride or isocyanate compound.
  • the primers according to the invention can also contain various additives and agents, alone or mixed, such as pigments, fillers, corrosion inhibiting agents, etc.
  • additives and agents such as pigments, fillers, corrosion inhibiting agents, etc.
  • strontium chromate zinc phosphate
  • titanium dioxide titanium dioxide
  • silica silica
  • the substrate is placed in an oven where it is heated at a determined temperature depending in particular on the nature of said substrate, its shape and the coating thickness desired.
  • the energy stored during the passage through the furnace of the substrate coated with primer allows, in addition to the crosslinking of the primer, melting and adhesion of the surface coating applied by dipping on the substrate right out of the oven.
  • the powder adhesion primers developed by the applicant are particularly resistant at elevated temperatures which may be necessary to ensure effective preheating of the substrate to put on.
  • the powdered primers according to the invention can not only be heated to 270-320 ° C, but they can, without damage to the quality of the final coating, undergo heating at higher temperatures, such as for example, between 320 and 380 ° C, when necessary.
  • the average residence time of the substrate in the oven is generally between 1 and 30 min and preferably between 3 and 10 min.
  • the substrate is immersed in a soaking tank containing the surface coating as defined above.
  • the surface coatings in powder form, applied by dipping and in accordance with the invention are preferably based on polyamide and / or polyetheresteramide.
  • polyamide entering the surface powder coating is meant polyamides aliphatics obtained from lactams or amino acids whose hydrocarbon chain has a number of carbon atoms between 4 and 20 such as, for example, caprolactam, enantholactam, dodecalactam, undecanolactam, 11-undecanoic amino acid, 12-dodecanoic amino acid, condensation products of a dicarboxylic acid with a diamine such as, for example, polyamides 6.6, 6.10, 6.12, 9.6, (products of the condensation of hexamethylene diamine with adipic acid, the acid azelaic, sebacic acid, dodecanedioic acid-1.12 and nonamethylene diamine with adipic acid), the copolyamides resulting from the polymerization of the various monomers mentioned above or the mixtures of several polyamides mentioned above.
  • the inherent viscosity (measured at 20 ° C for a solution of 0.5 g per 100 g of metacresol) of the polyamides can be between 0.20 and 2.0, and preferably between 0.60 and 1.30 dlg -1 .
  • polyamides also means semi-aromatic amorphous polyamides, and in particular as defined in French patents FR 1,588,130, 2,324,672 and 2,575,756, in European patent EP 53,876, in Japanese patents 59,015,447 and 60,217,237.
  • polyetheresteramides are meant both statistical polyetheresteramides (i.e. formed by the random sequence of the various monomer components) that the block polyetheresteramides that is to say formed of blocks having a certain length of chain of their various constituents.
  • the number-average molecular mass of these polyamide sequences is generally between 500 and 10,000 and more particularly between 600 and 5,000.
  • the polyamide sequences of the polyetheresteramides are preferably formed from polyamide 6, 6.6, 6.12, 11 or 12 or from copolyamides resulting from the polycondensation of their monomers.
  • the number average molecular weight of the polyethers is generally between 200 and 6000 and more particularly between 600 and 3000.
  • the polyether blocks preferably consist of polytetramethylene glycol (PTMG), polypropylene glycol (PPG), or polyethylene glycol (PEG).
  • PTMG polytetramethylene glycol
  • PPG polypropylene glycol
  • PEG polyethylene glycol
  • the inherent viscosity of polyetheresteramides is advantageously between 0.8 and 2.05, and preferably between 0.80 and 1.20.
  • the inherent viscosity is measured in metacresol at 25 ° C with an initial concentration of 0.5 g per 100 g of metacresol. It is expressed in dlg -1 .
  • the polyetheresteramides according to the invention can be formed from 5 to 85% by weight of polyether and 95 to 15% by weight of polyamide, and preferably 30 to 80% by weight of polyether and 70 to 20% by weight weight of polyamide.
  • the particle size of the surface coating powders can be between 20 and 300 ⁇ m, and preferably between 40 and 200 ⁇ m.
  • the soaking technique according to the invention is carried out in a non-electrostatic fluidized bed, the fluidized beds electrostatic being unsuitable and difficult to use for soaking in powders polyamide and / or polyetheresteramide base particularly preferred by the applicant.
  • the thickness of the surface coating can be between 150 and 600 ⁇ m, and preferably between 200 and 400 ⁇ m.
  • the substrate is cooled, for example with ambient air, by immersion in water or in any other suitable solvent, after having possibly undergone a post-fusion.
  • the inherent viscosity of PA-11 measured at 20 ° C for a solution of 0.5 g of polymer in 100 g of m-cresol, is equal to 1.
  • the powdered primer composition as described in A. 2 °) is deposited at room temperature on the steel plate by electrostatic projection under negative electrostatic charge of 40 kV, the metal surface being at potential O.
  • the substrate thus coated passes through an oven maintained at 380 ° C where it remains for 3 min.
  • the substrate thus coated is removed from the soaking tank and then cooled air after post-merger.
  • the metal substrate is a sandblasted steel plate and the surface coating has the same characteristics than those of EXAMPLE 1.
  • the substrate is coated with the primer by electrostatic spraying under the same conditions as in 1.B.
  • the metal substrate and the surface coating have the same characteristics as in EXAMPLE 2 and the conditions for processing and evaluating the materials obtained are identical to those described in EXAMPLE 2.
  • the metal substrate and the surface coating have the same characteristics as those of EXAMPLE 1.
  • the material obtained is such that the initial adhesion of the coating is zero (Class O) and the path corrosion is complete within hours.
  • the surface appearance of the coating is quite poor with in particular bubbling on the edges corresponding to degradation of the primer.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)

Claims (6)

  1. Verfahren zur Beschichtung von metallischen Trägermaterialien mittels einer Grundierungssubstanz (Primer) und eines Oberflächenbelags, das die folgenden Verfahrensschritte beinhaltet:
    a) Beschichtung des Trägermaterials mit einer oder mehreren pulverförmigen Grundierungssubstanzen auf Basis thermohärtbarer Kunstharze gemäß einer Auftragungstechnik für Pulver und derart, daß die mittlere Dicke der Grundierung nach dem Erwärmen 10 bis 20 µm beträgt,
    b) Erwärmung des so beschichteten Trägermaterials und unmittelbar danach:
    c) Tauchauftragung des pulverförmigen Oberflächenbelags in einem Fließbett.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Temperatur zur Erwärmung des Trägermaterials in der Stufe b) 380 °C erreichen kann.
  3. Verfahren nach Anspruch 1 oder 2, in dem der Oberflächenbelag auf Polyamidbasis, vorzugsweise PA-11 und/oder PA-12, und/oder auf Polyetheresteramidbasis ist.
  4. Verfahren nach einem der Ansprüche 1 bis 3, gemäß dem die pulverförmige Grundierung eine Grundierung auf Basis von Epoxidharz(en) und von Härter(n) aus Epoxidharz(en) ist.
  5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß die Härter aus Epoxidharz(en) unter den Harzen des Amin-, Säureanhydrid- oder Isocyanattyps ausgewählt werden.
  6. Verbundwerkstoff, bestehend aus:
    einem metallischen Trägermaterial,
    einer oder mehreren Grundierungslagen, wie in den Ansprüchen 1, 2, 4 und 5 definiert,
    einem Oberflächenbelag, wie in den Ansprüchen 1 und 3 definiert, mit einer mittleren Schichtdicke von vorzugsweise 200 bis 400 µm.
EP89402897A 1988-11-03 1989-10-20 Verfahren zur Beschichtung eines Metallsubstrats mit Pulvergrundierungsschicht und mittels Tauchen angebrachte Oberflächenbeschichtung und so erhaltene Materialien Expired - Lifetime EP0367653B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8814332 1988-11-03
FR8814332A FR2638466B1 (fr) 1988-11-03 1988-11-03 Procede pour revetir des substrats metalliques a l'aide d'un primaire en poudre et d'un revetement superficiel applique par trempage, compositions de primaire en poudre utilisees et materiaux composites obtenus

Publications (3)

Publication Number Publication Date
EP0367653A1 EP0367653A1 (de) 1990-05-09
EP0367653B1 EP0367653B1 (de) 1993-05-19
EP0367653B2 true EP0367653B2 (de) 2001-11-21

Family

ID=9371527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89402897A Expired - Lifetime EP0367653B2 (de) 1988-11-03 1989-10-20 Verfahren zur Beschichtung eines Metallsubstrats mit Pulvergrundierungsschicht und mittels Tauchen angebrachte Oberflächenbeschichtung und so erhaltene Materialien

Country Status (14)

Country Link
US (1) US5891515A (de)
EP (1) EP0367653B2 (de)
JP (1) JPH0755306B2 (de)
AT (1) ATE89496T1 (de)
AU (1) AU628877B2 (de)
CA (1) CA2002109C (de)
DE (1) DE68906643T3 (de)
DK (1) DK174338B1 (de)
ES (1) ES2055133T5 (de)
FI (1) FI100661B (de)
FR (1) FR2638466B1 (de)
IE (1) IE63336B1 (de)
NO (1) NO306956B1 (de)
PT (1) PT92182B (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6284311B1 (en) * 1996-04-08 2001-09-04 E. I. Du Pont De Nemours And Company Process for applying polymer particles on substrate and coatings resulting therefrom
US6080310A (en) * 1999-03-17 2000-06-27 Alliedsignal Inc. Method of applying a slip-resistant coating to a spin-on filter using a fluidized bed coating apparatus, and spin-on filter which is a product thereof
FR2795004A1 (fr) * 1999-06-15 2000-12-22 Atofina Procede de recouvrement d'un objet par un film et appareillage pour la mise en oeuvre de ce procede
US6692817B1 (en) 2000-04-04 2004-02-17 Northrop Grumman Corporation Apparatus and method for forming a composite structure
US6746719B2 (en) * 2000-10-13 2004-06-08 Atofina Chemicals, Inc. Process of priming a metal surface for attaching resin systems thereto utilizing aqueous emulsion of a polyfunctional epoxide compound as the primer
US20030068434A1 (en) * 2001-08-21 2003-04-10 Moore James B. Method for bonding thermoplastic films to metal surfaces of cylinders, vessels and component parts
US6537610B1 (en) * 2001-09-17 2003-03-25 Springco Metal Coating, Inc. Method for providing a dual-layer coating on an automotive suspension product
SE526172C2 (sv) * 2003-05-08 2005-07-19 Saab Ab Metod för behandling av en yta
DE10322678A1 (de) * 2003-05-20 2004-12-09 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zur Sinterbeschichtung
JP4907054B2 (ja) * 2003-12-09 2012-03-28 中央発條株式会社 高耐久性ばねおよびその塗装方法
US7235278B2 (en) * 2004-03-31 2007-06-26 Mcneil-Ppc, Inc. Method and apparatus for applying particulate material to a substrate
CN101040016B (zh) 2004-10-20 2011-08-03 威士伯采购公司 用于罐的涂料组合物和涂覆方法
US7507440B2 (en) * 2005-02-23 2009-03-24 Ppg Industries Ohio, Inc. Methods of forming composite coatings
GB2428395B (en) * 2005-07-19 2007-09-05 Ian Webb A process of powder coating and a powder coating apparatus
BRPI0616274B1 (pt) * 2005-10-18 2017-12-05 Valspar Sourcing, Inc. Container understanding a metal food or drink container, method for preparing a container undertaking a metal food or drink container, and coating composition
US9984801B2 (en) 2008-11-27 2018-05-29 Nippon Steel & Sumitomo Metal Corporation Electrical steel sheet and manufacturing method thereof
JP5721330B2 (ja) * 2010-01-27 2015-05-20 藤倉化成株式会社 ベースコート塗料組成物、および複合塗膜とその製造方法
FR2955864B1 (fr) 2010-02-01 2012-03-23 Arkema France Poudre a base de polyamide et procede de revetement d'objet par fusion de ladite poudre
JP5606807B2 (ja) * 2010-06-14 2014-10-15 中央発條株式会社 粉体塗装方法
CN103143488B (zh) * 2011-12-06 2014-10-22 苏州汉扬精密电子有限公司 塑胶与金属结合件的表面涂装方法
JP6132153B2 (ja) * 2013-07-18 2017-05-24 株式会社ジェイテクト 摺動軸およびステアリング装置
IT201900007422A1 (it) * 2019-05-28 2020-11-28 Sercolor Srl Un metodo e relativo macchinario per la realizzazione di un effetto di corrosione su pezzi metallici
EP3851211A1 (de) * 2020-01-14 2021-07-21 Triarca A/S Oberflächenbeschichtung von elektrischen gehäusen

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA702044A (en) * 1965-01-19 J. Nagel Fritz Coating by sequential immersion in fluidized beds
CA746457A (en) * 1966-11-15 Mcintosh Alexander Fluidized bed of epoxy resin and amine curing agent
US2303822A (en) * 1939-08-21 1942-12-01 Frank D Chapman Receptacle filler
BE562831A (de) * 1956-12-04 1900-01-01
LU37436A1 (de) * 1958-07-18
DE1127257B (de) * 1958-10-04 1962-04-05 Mannesmann Ag Verfahren zur Herstellung von Schutzueberzuegen auf metallischen Koerpern, z.B. Rohren, durch Aufbringen pulverfoermiger Epoxyharze
US3203822A (en) * 1961-11-14 1965-08-31 Metallgesellschaft Ag Production of polyamide coatings
US3502492A (en) * 1965-12-13 1970-03-24 Ransburg Electro Coating Corp Metal substrate coated with epoxy powder primer and plasticized polyvinyl chloride topcoat and method of making same
FR2097592A5 (en) * 1970-07-15 1972-03-03 Aquitaine Total Organico Plastics coating of metals - with pvc or polyamide using primer coated metal
US3904346A (en) * 1971-12-23 1975-09-09 Leslie Earl Shaw Electrostatic powder coating process
JPS5210135B2 (de) * 1973-05-21 1977-03-22
US3998716A (en) * 1974-06-03 1976-12-21 Inmont Corporation Method of applying coatings
DE2611046C2 (de) * 1975-03-19 1983-10-20 Daicel Ltd., Sakai, Osaka Grundiermittel für die Kunststoffbeschichtung von Metallen auf Basis eines filmbildenden Dienpolymeren und dessen Verwendung zur Grundierung von Metalloberflächen
DE2542769C3 (de) * 1975-09-25 1981-03-26 Monmore Tubes Ltd., Wolverhampton, West Midlands Vorrichtung zur Außenbeschichtung von endlosen Metallrohren
CA1039126A (en) * 1976-02-05 1978-09-26 Canada Wire And Cable Limited Electrostatic powder deposition on elongated substrates in plural fusible layers
US4251426A (en) * 1979-02-06 1981-02-17 E. I. Du Pont De Nemours And Company Epoxy resin powder primer compositions
US4351914A (en) * 1981-03-24 1982-09-28 E. I. Du Pont De Nemours And Company Corrosion-resistant, improved powder primer surfacer
JPS5836447A (ja) * 1981-08-27 1983-03-03 株式会社フジクラ 耐熱性被覆構造
CA1326673C (en) * 1986-12-26 1994-02-01 Yasuhisa Saito Imide compound and composition containing the same
JPS63258680A (ja) * 1987-04-15 1988-10-26 Kubota Ltd 鋼製杭の防食用樹脂ライニング方法
JPH07100151B2 (ja) * 1987-05-18 1995-11-01 ダイセル・ヒュルス株式会社 粉体塗装方法
DE3737194A1 (de) * 1987-11-03 1989-05-18 Bayer Ag Lackharz und sein einsatz fuer die pulverlackierung

Also Published As

Publication number Publication date
CA2002109C (fr) 1999-02-16
DK174338B1 (da) 2002-12-16
FI895222A0 (fi) 1989-11-02
DK546089A (da) 1990-05-04
EP0367653A1 (de) 1990-05-09
NO894344D0 (no) 1989-11-01
DE68906643T2 (de) 1993-10-07
NO894344L (no) 1990-05-04
CA2002109A1 (fr) 1990-05-03
AU4397989A (en) 1990-05-10
PT92182A (pt) 1990-05-31
DE68906643T3 (de) 2002-05-29
ATE89496T1 (de) 1993-06-15
IE893536L (en) 1990-05-03
EP0367653B1 (de) 1993-05-19
AU628877B2 (en) 1992-09-24
FR2638466A1 (fr) 1990-05-04
PT92182B (pt) 2001-05-31
ES2055133T3 (es) 1994-08-16
JPH0755306B2 (ja) 1995-06-14
JPH02258084A (ja) 1990-10-18
DE68906643D1 (de) 1993-06-24
DK546089D0 (da) 1989-11-02
ES2055133T5 (es) 2002-05-01
FR2638466B1 (fr) 1993-05-07
NO306956B1 (no) 2000-01-17
FI100661B (fi) 1998-01-30
US5891515A (en) 1999-04-06
IE63336B1 (en) 1995-04-19

Similar Documents

Publication Publication Date Title
EP0367653B2 (de) Verfahren zur Beschichtung eines Metallsubstrats mit Pulvergrundierungsschicht und mittels Tauchen angebrachte Oberflächenbeschichtung und so erhaltene Materialien
EP0412888B1 (de) Pulverförmige thermoplastische Zusammensetzungen, basierend auf Polyamiden und/oder Polyetheresteramiden, Herstellungsverfahren und Verwendung zur Beschichtung metallischer Substrate
US6027814A (en) Pulverulent polyamide composition for the coating of metal substrates
EP0706544B1 (de) Verwendung einer pulverzusammensetzung auf basis von polyamid zur beschichtung von metalloberflächen
EP0354822A1 (de) Klebende Grundiermittelzusammensetzungen basierend auf Epoxid- und Methacrylharz für fluorierte Beschichtungen, ihre Verwendung zur Beschichtung von metallischen Substraten und Verfahren zu ihrer Herstellung
AU713385B2 (en) Coating of un-primed metals with polyamide powder coating compositions
US5387653A (en) Thermoplastic polyamide/polyetheresteramide powders for the direct coating of metal substrates
FR2526051A1 (fr) Procede d'electro-revetement cationique antirouille
FR2481306A1 (fr) Composition et procede de revetement par electrodeposition cathodique
IE68774B1 (en) Powder thermoplastic compositions based on polyamide and/or polyetheresteramide process for their preparation and their use for coating metal substrates

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19891025

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17Q First examination report despatched

Effective date: 19910829

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ELF ATOCHEM S.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

REF Corresponds to:

Ref document number: 89496

Country of ref document: AT

Date of ref document: 19930615

Kind code of ref document: T

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 68906643

Country of ref document: DE

Date of ref document: 19930624

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930601

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3008650

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

EPTA Lu: last paid annual fee
26 Opposition filed

Opponent name: HUELS AKTIENGESELLSCHAFT PATENTABTEILUNG

Effective date: 19931217

NLR1 Nl: opposition has been filed with the epo

Opponent name: HULS AKTIENGESELLSCHAFT

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2055133

Country of ref document: ES

Kind code of ref document: T3

EAL Se: european patent in force in sweden

Ref document number: 89402897.6

RDAH Patent revoked

Free format text: ORIGINAL CODE: EPIDOS REVO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAE Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOS REFNO

APCC Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPO

APCC Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPO

APCC Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPO

APCC Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPO

APCC Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPO

APCC Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPO

APCC Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPO

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: ATOFINA

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: ATOFINA

R26 Opposition filed (corrected)

Opponent name: DEGUSSA-HUELS AKTIENGESELLSCHAFT PATENTE UND MARKE

Effective date: 19931217

NLR1 Nl: opposition has been filed with the epo

Opponent name: DEGUSSA-HUELS AKTIENGESELLSCHAFT PATENTE UND MARKE

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

RTI2 Title (correction)

Free format text: METHOD OF COATING METAL SUBSTRATES WITH A POWDER PRIMER AND A SURFACE COAT APPLIED BY DIPPING AND PRODUCT OBTAINED

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20011121

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011121

REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

Free format text: MAINTIEN DU BREVET DONT L'ETENDUE A ETE MODIFIEE

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

NLR2 Nl: decision of opposition
REG Reference to a national code

Ref country code: GR

Ref legal event code: EP

Ref document number: 20010401909

Country of ref document: GR

NLR3 Nl: receipt of modified translations in the netherlands language after an opposition procedure
REG Reference to a national code

Ref country code: ES

Ref legal event code: DC2A

Kind code of ref document: T5

Effective date: 20020128

GBTA Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977)
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20040924

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20041003

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20041006

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20041013

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20041027

Year of fee payment: 16

Ref country code: CH

Payment date: 20041027

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20041116

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20041215

Year of fee payment: 16

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051020

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051021

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051021

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051031

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051031

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060501

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20060501

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20051021

BERE Be: lapsed

Owner name: S.A. *ELF ATOCHEM

Effective date: 20051031

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20071018

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20071026

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20071009

Year of fee payment: 19

Ref country code: GB

Payment date: 20071017

Year of fee payment: 19

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20081020

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20090630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081020

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081020