EP0073777A1 - Revetement combine et son procede de preparation. - Google Patents

Revetement combine et son procede de preparation.

Info

Publication number
EP0073777A1
EP0073777A1 EP82900623A EP82900623A EP0073777A1 EP 0073777 A1 EP0073777 A1 EP 0073777A1 EP 82900623 A EP82900623 A EP 82900623A EP 82900623 A EP82900623 A EP 82900623A EP 0073777 A1 EP0073777 A1 EP 0073777A1
Authority
EP
European Patent Office
Prior art keywords
coating
water
thinnable
layer
structural
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.)
Granted
Application number
EP82900623A
Other languages
German (de)
English (en)
Other versions
EP0073777B1 (fr
Inventor
Werner Linck
Franzjosef Strater
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.)
Resicoat Beschichtungspulver GmbH
Rhodius Lack & Farbwerke & Co KG GmbH
RESICOAT GmbH
Rhodius Lack & Farbwerke GmbH
Original Assignee
Resicoat Beschichtungspulver GmbH
Rhodius Lack & Farbwerke & Co KG GmbH
RESICOAT GmbH
Rhodius Lack & Farbwerke 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6127182&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0073777(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Resicoat Beschichtungspulver GmbH, Rhodius Lack & Farbwerke & Co KG GmbH, RESICOAT GmbH, Rhodius Lack & Farbwerke GmbH filed Critical Resicoat Beschichtungspulver GmbH
Priority to AT82900623T priority Critical patent/ATE14848T1/de
Publication of EP0073777A1 publication Critical patent/EP0073777A1/fr
Application granted granted Critical
Publication of EP0073777B1 publication Critical patent/EP0073777B1/fr
Expired 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
    • 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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
    • 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
    • B05D7/14—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 metal, e.g. car bodies
    • B05D7/16—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 metal, e.g. car bodies using synthetic lacquers or varnishes
    • 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
    • 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 invention is based on a composite coating for substrates made of iron or non-ferrous metal according to the preamble of the main claim. It is known to apply a composite coating to a steel pipe, but firstly a synthetic resin which cures at the processing temperature with crosslinking is applied, this is hardened and then coated with an adhesive layer, before which the pipe is unvi.ckelt with an extruded synthetic stucco tape. Such a process, which is naturally quite cumbersome and, moreover, is only suitable for parts with a circular cross section, does not allow the achievement of a structured surface.
  • the composite coating according to the invention with the characterizing features of the main claim has the advantage that substrates of any shape can be coated with it without difficulty, the adhesion of the structural coating on the powder coating layer being surprisingly so good that the part provided with this composite coating even after a long weather test remain completely unchanged.
  • the powder coating layer primarily protects against corrosion, while the structural coating also takes on a mechanical protective function in addition to a decorative effect that may be desired, since the layer remains elastic and therefore absorbs shocks or other mechanical effects. If necessary, repairs can also be carried out very easily, since the structure coating not only adheres very well to the powder coating layer, but also to the structure coating that has already dried. Due to the consistency of the water-thinnable structure coating, which is honey-like and moreover thixetropic, the material can be applied in a thick layer and then structured accordingly using a profile roller.
  • the process according to the invention according to claim 8 has the advantage that the structural coating can be applied to the unpolished powder coating layer, which is in no way otherwise compromised, without the adhesion and long-term weathering tests giving poorer results than if the powder coating were previously roughened or otherwise pretreated vird. This is particularly the case in Distributors where good permanent corrosion protection is important and you do not want to run the risk that the powder coating skin may be destroyed by grinding and thus deteriorate the corrosion protection.
  • the structural coating in addition to the acrylic resin and organic pigments and optionally coarse-grained fillers, contains 0.01 to 0.5% by weight of alkali metal hydroxide and 1.0 to 5.0% by weight of an ester as an organic Contain solvents; a corresponding amount of alkali in conventional, server-thinnable coating materials usually already leads to a lack of water resistance.
  • Aikaiihydroxide is preferably 45% caustic soda, as an ester z.
  • FIG. 1 An embodiment of the invention is shown in the drawing and explained in more detail in the following description.
  • the figure shows a section through a substrate provided with the composite coating.
  • a steel sheet 1 is electrostatically coated in a known manner with a powder coating based on polyester resin in such a way that the thickness of the powder coating layer 2 is approximately 50 ⁇ m.
  • the powder coating layer is cured at about 200 ° C for a few minutes.
  • the water-thinnable structure coating 3 is applied, which consists of acrylic resin, organic color pigments, optionally coarse-grained fillers to produce a stronger structure and 0.01% by weight. 45 tigers of caustic soda and 1.2% by weight of dissobutyl ester and finally 0.2% by weight of a thixotropic additive based on cellulose.
  • the structure coating can be applied by rolling, spraying, rolling, filling or with a trowel.
  • a nozzle of approx. 4 mm at a pressure of 3 to 4 bar When applying by spraying, it is advantageous to use a nozzle of approx. 4 mm at a pressure of 3 to 4 bar.
  • the thickness of the layer is 2 to 2.5 mm.
  • the layer After application, the layer is then rolled over with a corresponding profile roller to achieve a coarse structure.
  • the application takes place at approx. 20 ° C.
  • the drying can also take place at this temperature, which takes about 24 hours. If necessary, drying can also take place at 50 to 170o C and then only takes 10 or 3 minutes.

Landscapes

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

Abstract

Le revetement pour supports en fer ou non-ferreux se compose d'une premiere couche en laque pulverisee qui porte une deuxieme couche constituee d'un revetement que l'on peut diluer dans l'eau. Il n'est pas necessaire de rendre rugueuse la couche de laque ou de la traiter d'une autre maniere avant d'appliquer la seconde couche. Tandis que la couche de laque pulverisee doit assurer une protection parfaite contre la corrosion, la seconde couche a laquelle on peut donner une surface grossierement modelee grace a un rouleau profile, peut servir a des buts decoratifs ou avoir une fonction de protection mecanique. Le revetement obtenu resistant aux intemperies montre une bonne adherence aussi bien seul que sur le support.
EP82900623A 1981-03-13 1982-02-12 Revetement combine et son procede de preparation Expired EP0073777B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82900623T ATE14848T1 (de) 1981-03-13 1982-02-12 Verbundbeschichtung und verfahren zur herstellung derselben.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3109713 1981-03-13
DE19813109713 DE3109713A1 (de) 1981-03-13 1981-03-13 Verbundbeschichtung und verfahren zur herstellung derselben

Publications (2)

Publication Number Publication Date
EP0073777A1 true EP0073777A1 (fr) 1983-03-16
EP0073777B1 EP0073777B1 (fr) 1985-08-14

Family

ID=6127182

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82900623A Expired EP0073777B1 (fr) 1981-03-13 1982-02-12 Revetement combine et son procede de preparation

Country Status (5)

Country Link
EP (1) EP0073777B1 (fr)
JP (1) JPS58500314A (fr)
DE (2) DE3109713A1 (fr)
IT (1) IT1150231B (fr)
WO (1) WO1982003190A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4029985A1 (de) * 1990-09-21 1992-03-26 Bohnacker Tegometall Verfahren zum pulverbeschichten von metalloberflaechen
DE4111544A1 (de) * 1991-04-09 1992-10-15 Worm Hans Gmbh Co Kg Kugelfuehrung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3156580A (en) * 1960-01-29 1964-11-10 Bell Aerospace Corp Method of surface finishing metal surfaces with epoxy and acrylic resins
US3359352A (en) * 1965-06-18 1967-12-19 Congoleum Nairn Inc Process for producing decorative surface covering
GB1419879A (en) * 1972-11-09 1975-12-31 Nordisk Aluminium Ind As Architectural panel sheets and processes of manufacturing such sheets
JPS534048A (en) * 1975-12-26 1978-01-14 Dainippon Toryo Co Ltd Method of forming multi-layer coating film
DE2800099A1 (de) * 1977-01-10 1978-07-20 Hobart Corp Beschichtetes metallteil
US4213486A (en) * 1978-11-06 1980-07-22 The Kendall Company Coated pipe and process for making same
AT369772B (de) * 1979-02-23 1983-01-25 Voest Alpine Ag Aufbringen von ueberzuegen aus thermoplastischen kunststoffen auf metallische gegenstaende, insbesondere rohre
DE2928323A1 (de) * 1979-07-13 1981-01-29 Rethan Ag Verfahren zum beschichten von aluminiumpaneels mit einem fassadendeckputz

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8203190A1 *

Also Published As

Publication number Publication date
EP0073777B1 (fr) 1985-08-14
IT1150231B (it) 1986-12-10
WO1982003190A1 (fr) 1982-09-30
IT8219934A0 (it) 1982-03-03
DE3109713A1 (de) 1982-10-21
JPS58500314A (ja) 1983-03-03
DE3265329D1 (en) 1985-09-19

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