EP0059136B1 - Uberzugsverfahren für Metallsubstrate mittels Kunststoffen und auf diese Weise erhaltene Metallkunststoffkomplexe - Google Patents

Uberzugsverfahren für Metallsubstrate mittels Kunststoffen und auf diese Weise erhaltene Metallkunststoffkomplexe Download PDF

Info

Publication number
EP0059136B1
EP0059136B1 EP19820400214 EP82400214A EP0059136B1 EP 0059136 B1 EP0059136 B1 EP 0059136B1 EP 19820400214 EP19820400214 EP 19820400214 EP 82400214 A EP82400214 A EP 82400214A EP 0059136 B1 EP0059136 B1 EP 0059136B1
Authority
EP
European Patent Office
Prior art keywords
polyamide
process according
layer
primary layer
metal
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
Application number
EP19820400214
Other languages
English (en)
French (fr)
Other versions
EP0059136A2 (de
EP0059136A3 (en
Inventor
Simon Ralph Kabalo
Franco Marchese
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.)
ATO Chimie SA
Original Assignee
ATO Chimie 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
Application filed by ATO Chimie SA filed Critical ATO Chimie SA
Publication of EP0059136A2 publication Critical patent/EP0059136A2/de
Publication of EP0059136A3 publication Critical patent/EP0059136A3/fr
Application granted granted Critical
Publication of EP0059136B1 publication Critical patent/EP0059136B1/de
Expired legal-status Critical Current

Links

Images

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
    • B05D7/53—Base coat plus clear coat type
    • B05D7/536—Base coat plus clear coat type 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
    • 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
    • B05D2252/00—Sheets
    • B05D2252/02—Sheets of indefinite length
    • 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
    • B05D2252/00—Sheets
    • B05D2252/10—Applying the material on both sides
    • 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)
    • 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
    • B05D2504/00—Epoxy polymers
    • 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
    • B05D2505/00—Polyamides

Definitions

  • the invention relates to the field of coating of metallic substrates. More particularly, it relates to a process for coating metallic substrates using plastics making it possible to produce multi-layer metal-plastic complexes. It also relates to the products obtained by such a process.
  • the metals constituting the sheet were generally steel or galvanized steel or aluminum or an aluminum-based alloy.
  • the plastics used were mainly polyvinyl chloride, and to a lesser extent polyethylene.
  • the present invention relates to the application to a metal substrate of one or more layers of plastics, the outer layer always being polyamide.
  • the object of the present invention is on the one hand to provide a more economical method than the known methods which start from films produced beforehand, and on the other hand, to provide a method applicable to polyamides.
  • polyamides are indeed particularly advantageous by their resistance to temperature, abrasion, to chemical agents, which are better than those of plastics used until now, such as PVC and provide total protection against corrosion to the metal substrate. basic.
  • Patent FR-A-2075 916 describes a process for coating a metallic substrate, more specifically for the interior coating of aluminum walls of kegs intended to contain beer. After applying a primer, a polyamide powder is deposited electrostatically, the outer layer of polyamide is then melted. The polyamide layer obtained has a thickness of 125 to 175 microns.
  • the patent FR-A-2 075 916 does not propose a continuous coating process making it possible to achieve in a single pass an external coating of thin polyamide, due to the fact that it is limited to the implementation of a technique for electrostatically applying the polyamide powder.
  • the subject of the invention is a process which makes it possible in particular to continuously coat metallic substrates presented in strips, by virtue of the use of a dispersion of polyamide powder in an organic liquid phase, this powder having a determined particle size.
  • the subject of the invention is a method for coating a metal substrate, in particular for producing an anti-corrosion coating, according to which a primary layer and at least one layer of plastic are applied to said substrate, the primary layer containing a resin chosen from epoxyphenolic resins, mixtures of epoxy resins and phenolic resins and combinations of said resins and mixtures of resins, while the last layer of plastic material is a layer of polyamide, after which the whole is heated to melting the outer polyamide layer, said method being characterized in that said polyamide layer is continuously applied in the form of a suspension, in an organic liquid phase, of polyamide powder whose particle size is less than 40 microns , the thickness of the outer polyamide layer being between 20 and 50 microns, the process being carried out continuously and in a single pass.
  • the invention involves the application to the substrate of an organic bonding primer, susceptible to a modification of structure by heat.
  • the metal substrate intended to be covered with polyamide suspension is previously coated with a primer, because, among other functions, this ensures the connection between the metal and the polyamide coating, due to the fact the very good adhesiveness which it has both towards metals and polyamides.
  • the primer strengthens the metal protection provided by the polyamide coating firstly by preventing the path between metal and polyamide of gases such as oxygen, carbon dioxide, water vapor, and then, by superimposing its own protective action to that of polyamide.
  • the presence of the primer is even more essential when the sheet to be coated has not undergone a preparation treatment.
  • the primer contains an epoxy resin in an amount between 1 and 20% of the total weight of the primer, associated with a phenolic resin in an amount between 1 and 20% of the total weight of the primer, or an epoxy resin -phenolic in an amount between 1% and 20% of the total weight of the primary or a mixture of the above resins in the same weight proportions relative to the primary as those mentioned above.
  • the anti-corrosion action provided by the primer can be reinforced by adding to the primer corrosion-inhibiting chemical compounds such as zinc phosphate, zinc tetrahydroxychromate, strontium chromate, these salts which can be used alone or as a mixture.
  • the primer corrosion-inhibiting chemical compounds such as zinc phosphate, zinc tetrahydroxychromate, strontium chromate, these salts which can be used alone or as a mixture.
  • the second step of the coating process consists in coating the primer with a suspension of a thermoplastic fine powder based on polyamide, presented in a solvent or mixture of organic solvents.
  • the final step of heating the entire coating can allow proper attachment of the primer on the substrate.
  • the final heating step causes the polyamide particles to melt and forms a continuous and smooth layer on the substrate.
  • this is a purely physical transformation carried out under the effect of the rise in temperature, for example in a heat treatment oven. This characteristic is advantageous and constitutes an important difference with the processes of the prior art in which the heat treatment was intended to effect a chemical transformation comparable to a crosslinking in the final plastic layer.
  • the final layer or finishing layer is obtained by evaporation of the liquid phase in which the polyamide particles are suspended and by fusion of said particles to form the final layer.
  • the grain size of the polyamide powder corresponds to a specific particle size, being in a range less than 40 ⁇ and preferably between 10 to 40 ⁇ , particularly between 10 and 30 ⁇ .
  • the powders suspended are powders of polyamides, that is to say resins of high molecular weight obtained from lactams or amino acids whose hydrocarbon chain has a number of carbon atoms between 4 and 20 such as, for example, caprolactam, oenantholactam, dodecalactam, undecanolactam, dodecanolactam, 11 amino-undecanoic acid, 12 amino-dodecanoic acid.
  • the polyamide may also be a condensation product of a dicarboxylic acid with a diamine such as, for example, the polyamides 6.6, 6.9, 6.10, 6.12, 9.6, condensation products of hexamethylene diamine with adipic acid, the azelaic acid, sebacic acid, 1.12 dodecanedioic acid and nonamethylene diamine with adipic acid.
  • the powders can consist of copolyamides resulting from the polymerization of the various monomers mentioned above.
  • copolyamides result from the polycondensation of e-caprolactam, amino-undecanoic acid and / or lauryl lactam.
  • their melt viscosity is all the higher, which affects their spreading on the substrate during fusion; according to the present invention, the suspension may contain adjuvants which promote spreading of the molten polyamide despite a high melting viscosity.
  • the lower the molecular weight the more the coating will be fluid in the molten state to the detriment of its mechanical properties, its aging and its resistance to weathering.
  • the inherent viscosity (measured at 20 ° C. for a solution of 0.5 g in 100 ml of metacresol) of the polyamide powders, reflecting their molecular mass, is between the values 0.75 and 1.40; the nature of the polyamide and the final application of the coated substrate are the determining factors for choosing the most favorable value.
  • the polyamide powders used according to the invention can be obtained by all kinds of techniques known to a person skilled in the art, for example by grinding polyamide granules previously cooled with liquid nitrogen, or dissolving these granules in solvents hot and precipitation by cooling, among others.
  • the organic liquid phase containing the polyamide powder in suspension, comprises a solvent or mixture of solvents chosen from alcohols, esters, aromatic hydrocarbons, and ketones.
  • solvents examples include benzyl alcohol, N-methyl pyrrolidone, ethylglycol acetate, dibutylglycol acetate or mixtures of solvents marketed under the name Solvesso 100 and 150.
  • the suspension based on polyamide powder may contain various additives which promote suspension, such as expanded silica (for example the product known as Aerosil) or which modify the surface tension, as is known to man of the art. art in the field of paints and varnishes.
  • expanded silica for example the product known as Aerosil
  • surface tension as is known to man of the art. art in the field of paints and varnishes.
  • These powders can be in their natural state and, consequently, generate colorless or pigmented coatings, the pigment or pigments which can be introduced into the suspension by means of a cutting resin as is known to those skilled in the art. art for the formulation of pigmented compositions.
  • the coating can be done on one or both sides of such a sheet.
  • the method is applicable with the most advantages to metal strips of thickness between 0.2 mm and 2 mm approximately.
  • the thickness of the external polyamide finishing layer is between approximately 20 and 50 ⁇ .
  • the strip unwinding station includes a coil 1 and an accumulator allowing it to dampen the variations in length and voltage following the changes of coils.
  • the strip then passes through a primary coating station 3.
  • the station 3 includes a duo of cylinders working according to the known technique called "reverse roll •.
  • An alternative embodiment of this primary coating step is shown in Figure 2.
  • the solution to be applied is contained in a tank 10 and deposited on the strip by a duo of cylinders 11, 12.
  • a final thickness of 6 to 7 microns is considered sufficient for the primer.
  • the general reference 4 designates a drying and crosslinking oven for the primer deposited at station 3.
  • the temperature to be reached in the oven 4 will obviously depend on the nature of the primer.
  • peak metal temperature a measure of the true baking temperature of the primary.
  • the installation shown in FIG. 1 for implementing the method of the invention then comprises a station 5 for cooling by forced air of the strip coated with primer.
  • Station 6 is used to apply a thin polyamide powder dispersion layer according to the invention to the strip already coated with primer.
  • station 6 comprises a duo of cylinders working according to the principle of rotogravure (similar to FIG. 2).
  • a drying and gelling oven 7 is used to remove solvents from the organic phase and to melt the grains of fine powder into a continuous layer. On leaving the oven 7 the strip passes through a cooling station 8 and then into a reel 9 preceded by its accumulator 9a.
  • the temperature conditions in the oven 7 will depend on the nature of the polyamides used.
  • the area between the temperature curve recorded on the sheet between the entry and exit of the oven, the x-axis (indifferently graduated in space or time) and the two verticals corresponding to the entry and to leaving the oven corresponds to the energy used to carry out the operations for removing the solvents, crosslinking the cutting binder and melting the polyamide powder.
  • the method of the invention makes it possible to treat metallic substrates presented in coils, by means of a continuous fabrication line of the kind represented in FIG. 1.
  • This primer is characterized by a total absence of yellowing and good flexibility due to the presence of polyester; on the other hand, its resistance to boiling water is poor.
  • This primer is also characterized by an absence of yellowing.
  • This primer is characterized by good resistance to boiling water. It can therefore be seen that the formulation of the primer can be adapted to the end use of the coated sheet.
  • the polyamide powder can, depending on the desired applications, have a concentration in the dispersion varying from 20 to 50%.
  • It also serves as a cutting resin, a vector for various additives or a complement of fillers allowing the finishing coat to be tinted.
  • a mild steel strip in a continuous strip 0.7 mm thick having undergone a surface preparation for the dual purpose of protecting against corrosion and promoting adhesion with the commercial product referenced BONDERITE 914 of the Company PARKER, is introduced at station 3 for primary coating with a speed of approximately 30 m / mm.
  • the multilayered metalloplastic complex obtained can undergo successfully without exhibiting the phenomenon of detachment of the plastic coating the immersion test for 1000 hours in boiling water on test pieces having undergone cross-shaped notches in the coating.
  • a 0.5 mm thick strip of aluminum strip having undergone a surface preparation with the commercial product referenced COLARDIN 6204 from the company CFPL, receives at the coating station 3 a primary layer according to formula II d '' dry thickness of 4 to 5 microns and reaches a PMT of 249 ° C in the oven 4. Likewise, in the second oven 7, the strip also reaches a PMT of 249 ° C. after application of a layer of formula VI where the polyamide is a polyamide 12 of which it will retain a dry thickness of 25 microns.

Landscapes

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

Claims (19)

1. Verfahren zum Überziehen eines Metallsubstrats, insbesondere zur Erzeugung einer antikorrosiven Beschichtung, wobei man auf das genannte Substrat eine Grundierschicht und wenigstens eine Schicht aus Kunststoff aufträgt, wobei die Grundierschicht ein Harz umfaßt, das aus den Epoxyphenolharzen, den Mischungen von Epoxyharzen und Phenolharzen und den Kombinationen aus den genannten Harzen und Harzmischungen ausgewählt ist, während die äußerste Schicht aus Kunststoff eine Polyamidschicht ist, wonach man das Ganze bis zum Schmelzen der äußersten Polyamidschicht erhitzt, dadurch gekennzeichnet, daß man kontinuierlich die genannte Polyamidschicht in Form einer Suspension von Polyamidpulver, dessen Teilchengröße unter 40 µm liegt, in einer flüssigen organischen Phase aufträgt, wobei die Dicke der äußeren Polyamidschicht zwischen 20 und 50 µm beträgt, und wobei das Verfahren kontinuierlich und in einem einzigen Schritt ausgeführt wird.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Metallsubstrat aus einer Eisenle-' gierung, aus Stahl, galvanisiertem Stahl, Aluminium oder aus einer Aluminiumlegierung besteht.
3. Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß man Bleche oder Bandmaterial aus Metall, beispielsweise einer Stärke von 0,2 mm bis 2 mm, behandelt.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß bezüglich des Aufbringens der Grundierung der Gehalt an Epoxyphenolharz oder an Epoxyharz in Assoziation mit dem Phenolharz zwischen 1 und 20 Gew.-%, bezogen auf das Gesamtgewicht der ersten Schicht, beträgt.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet,daß die Grundierung ein korrosionshemmendes anorganisches Salz aus der Gruppe : Zinkphosphat, Zinktetrahydroxychromat, Strontiumchromat, allein oder im Gemisch enthält, wobei der Gesamtgehalt von 0,5 bis 15 Gew.-% der Grundierung beträgt.
6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Grundierung eine oder mehrere der Verbindungen der folgenden Gruppen umfaßt :
- lineare thermoplastische Polyester mit einem Schmelzpunkt von 100 bis 150 °C, die in dem Gemisch der verwendeten Lösungsmittel löslich sind, deren Gehalt vorzugsweise 10 bis 25 Gew.-% des Gesamtgewichts der Grundierung beträgt,
- aliphatische oder aromatische Isocyanate, die blockiert und ab einer Temperatur von 120°C freisetzbar sind, deren Gehalt 1 bis 6 Gew.-% des Gesamtgewichts der Grundierung beträgt.
7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß man die Grundierung durch Erhitzen, insbesondere auf etwa 230 bis 260 °C, trocknet und vernetzt.
8. Verfahren nach einem der Ansprüche bis 7, dadurch gekennzeichnet, daß die Korngröße des Polyamidpulvers, das in Form einer Suspension auf das mit der Grundierung überzogene Substrat aufgebracht wird, von 10 bis 40 f.Lm, insbesondere 10 bis 30 µm, beträgt.
9. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß den Polyamidpulvern, die die Suspensionen bilden, Polyamide mit 4 bis 20 Kohlenstoffatomen in ihrer Kohlenwasserstoffkette zugrunde liegen.
10. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß den Polyamidpulvern Polyamide zugrunde liegen, die zu der folgenden Gruppe gehören : Polyamid 6, Polyamid 11, Polyamid 12 oder Copolyamide 6/11, 6/12, 6/11/12, 11/12.
11. Verfahren nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die logarithmische Viskositätszahl der Polyamidpulver (gemessen bei 20 °C für eine Lösung von 0,5 g in 100 ml m-Kresol) als Abbild ihres Molekulargewichts zwischen 0,75 und 1,40 beträgt.
12. Verfahren nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die flüssige organische Phase, die das Polyamidpulverin Suspension enthält, ein Lösungsmittel oder eine Mischung von Lösungsmitteln aus der Gruppe: Alkohole, Ester, aromatische Kohlenwasserstoffe und Ketone, umfaßt.
13. Verfahren nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die Polyamidpulver in natürlichem Zustand oder nach Zugabe von einem oder mehreren Pigmenten, die in die Suspension mit Hilfe eines Verschnittharzes eingebracht werden, verwendet werden.
14. Verfahren nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß das abschließende Erhitzen, das die äußere kontinuierliche Polyamidschicht durch rein physikalische Umformung (Schmelzen der Polyamidteilchen) bildet, zwischen etwa 230 und 260 °C durchgeführt wird.
15. Verfahren nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß die Dicke der Grundierung im Bereich von 6 bis 7 µm liegt.
16. Verfahren nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß man Bandmaterial einer Stärke zwischen 0,2 mm und 2 mm behandelt.
17. Verfahren nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß die flüssige organische Phase, die das Polyamidpulver in Suspension enthält, ein Lösungsmittel oder ein Gemisch von Lösungsmitteln enthält, dem eine oder mehrere verbindungen aus der folgenden Gruppe zugesetzt sind :
- das von American Cyanamid unter der Bezeichnung CYMEL 303 @ vertriebene Produkt, das ein Hexamethoxymethyl-melamin ist,
- das von Bayer unter der Bezeichnung SILICONE OL in den Handel gebrachte Produkte, das ein oberflächenaktives Mittel ist,
- das von Esso unter der Bezeichnung SOLVESSO 150 in den Handel gebrachte Produkt, das ein aromatisches Lösungsmittel mit 9 Kohlenstoffatomen ist,
- die von Röhm und Haas unter den Bezeichnungen PARALOID B 48 und DM 54 in den Handel gebrachte Produkte, die das Benetzen und die Adhäsion der Dispersion auf den Grundierungen erleichtern,
- das von Shell unter der Bezeichnung EPIKOTE 1001 in den Handel gebrachte Produkt, das ein Polykondensat von Epichlorhydrin und Diphenylolpropan ist.
18. Aus Metall und Kunststoff zusammengesetzte Körper, erhalten nach dem verfahren nach einem der Ansprüche 1 bis 17.
19. Aus Metall und Kunststoff zusammengesetzte Körper nach Anspruch 18, dadurch gekennzeichnet, daß sie ein Bandmaterial aus Metall einer Stärke von 0,2 mm bis 5 mm, eine Haftgrundierung und eine kontinuierliche äußere Polyamidschicht einer Stärke von 20 bis 50 µm umfassen.
EP19820400214 1981-02-23 1982-02-05 Uberzugsverfahren für Metallsubstrate mittels Kunststoffen und auf diese Weise erhaltene Metallkunststoffkomplexe Expired EP0059136B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8103528A FR2500371A1 (fr) 1981-02-23 1981-02-23 Procede de fabrication en continu de complexes multicouches metal-plastique et produits obtenus
FR8103528 1981-02-23

Publications (3)

Publication Number Publication Date
EP0059136A2 EP0059136A2 (de) 1982-09-01
EP0059136A3 EP0059136A3 (en) 1982-10-06
EP0059136B1 true EP0059136B1 (de) 1985-09-18

Family

ID=9255518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820400214 Expired EP0059136B1 (de) 1981-02-23 1982-02-05 Uberzugsverfahren für Metallsubstrate mittels Kunststoffen und auf diese Weise erhaltene Metallkunststoffkomplexe

Country Status (5)

Country Link
EP (1) EP0059136B1 (de)
JP (1) JPS57156070A (de)
CA (1) CA1179558A (de)
DE (1) DE3266260D1 (de)
FR (1) FR2500371A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61177238A (ja) * 1985-02-02 1986-08-08 日新製鋼株式会社 マフラ−用塗装鋼板およびその製造方法
JPS61177237A (ja) * 1985-02-02 1986-08-08 日新製鋼株式会社 マフラ−用塗装鋼板およびその製造方法
US5229214A (en) * 1989-07-31 1993-07-20 Akzo N.V. Preprimed metal substrates for formed metal applications
DE19933697A1 (de) * 1999-07-17 2001-01-18 Dieter Mueller Verfahren zum Beschichten der Oberfläche von verzinkten Werkstücken aus Eisen oder Stahl
WO2009149143A1 (en) * 2008-06-03 2009-12-10 E. I. Du Pont De Nemours And Company Adhesion of polyamides to epoxy resins
CN103041966B (zh) * 2011-10-17 2014-12-24 宝山钢铁股份有限公司 电工钢表面极厚绝缘涂层的生产方法
US11773286B2 (en) 2017-12-13 2023-10-03 Resonac Corporation Composite laminate and method for producing same, and metal resin bonded product and method for producing same

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL241330A (de) * 1958-07-18
FR1215101A (fr) * 1958-11-05 1960-04-14 Pechiney Procédé de revêtement de surfaces métalliques par des polyoléfines
BE683230A (de) * 1966-06-27 1966-12-01
US3593848A (en) * 1968-02-26 1971-07-20 Atlas Coatings Corp Foam-covered coil and methods of manufacturing the same
FR1601195A (de) * 1968-12-31 1970-08-10
FR1601194A (de) * 1968-12-31 1970-08-10
FR1602751A (de) * 1968-12-31 1971-01-25
GB1322381A (en) * 1970-01-02 1973-07-04 British Aluminium Co Ltd Protective coated aluminium and a process for the application of a protective coating to aluminium
IT964886B (it) * 1971-08-24 1974-01-31 Cabot Corp Composizione in polvere per tecni di esecuzione di rivestimenti senza solvente
JPS515018B2 (de) * 1972-05-18 1976-02-17
SE387133B (sv) * 1972-10-18 1976-08-30 Diamond Shamrock Corp Sett att framstella en grundfergsoverdragningskomposition
JPS5758385B2 (de) * 1973-08-27 1982-12-09 Daicel Chem
GB2019252B (en) * 1978-04-03 1982-07-21 Oakland Corp Friction locking threaded fastener
JPS55152055A (en) * 1979-05-16 1980-11-27 Toa Gosei Chem Ind Resin coated zinc plated steel plate and adhering vessel using said resin coated zinc plated steel plate as blank

Also Published As

Publication number Publication date
FR2500371A1 (fr) 1982-08-27
EP0059136A2 (de) 1982-09-01
JPH0230308B2 (de) 1990-07-05
JPS57156070A (en) 1982-09-27
FR2500371B1 (de) 1983-06-03
CA1179558A (en) 1984-12-18
EP0059136A3 (en) 1982-10-06
DE3266260D1 (en) 1985-10-24

Similar Documents

Publication Publication Date Title
JP3713278B2 (ja) ポリエステル組成物および押出被覆でのその使用
CA2002109C (fr) 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
FR2596420A1 (fr) Tole d'acier traitee en surface, a resistance elevee a la corrosion
CH637325A5 (fr) Element composite resine d'olefine-metal.
EP0059136B1 (de) Uberzugsverfahren für Metallsubstrate mittels Kunststoffen und auf diese Weise erhaltene Metallkunststoffkomplexe
FR2701268A1 (fr) Peintures à base de poudres de polyamide destinées au revêtement de profilés PVC.
EP2061837A1 (de) Selbsthaftendes hochleistungspulver ohne haftmittel auf polyamidbasis
EP0800557B9 (de) Pulverzusammensetzung auf basis von polyamid zur beschichtung metallischer substrate
EP0875538B1 (de) Modifizierte poröse Kieselsäure, Verfahren zu ihrer Herstellung und ihre Verwendung in Farben sowie als Träger von Pigmenten und Farbstoffen
EP0577749A1 (de) Beschichtungen auf der basis von ethylen/vinylalkohol
JPH076071B2 (ja) 金属表面処理方法および処理浴液
EP0821039B1 (de) Selbsthaftende Zusammensetzungen mit verbesserter Kriechstromfestigkeit zur Beschichtung von Metallsubstraten
EP0487438A1 (de) Metallbehälter, insbesondere Gasflasche oder -tank
FR2633632A1 (fr) Compositions nouvelles de primaire d'adherence pour revetement fluore a base de resines epoxydes et mathacryliques, leur application pour le revetement de substrats metalliques et procede de fabrication desdits revetements
WO2020084252A1 (fr) Poudres de copolyamide a basse temperature de fusion
FR2534881A1 (fr) Recipient metallique a joint lateral peripherique et couche de base adhesive pour sa fabrication
FR2745733A1 (fr) Nouveau revetement de surfaces metalliques et son procede de mise en oeuvre
FR2471859A1 (fr) Feuille metallique a revetement composite de resine et poudre metallique
EP3529318A1 (de) Selbstklebende zusammensetzung zur beschichtung von metallischen oberflächen
CH633481A5 (en) Acrylonitrile-butadiene-styrene resin/polyvinylidene fluoride resin composite material
JP2582238B2 (ja) 導電性の色彩調整された自動車用プライマー
FR2496502A1 (fr) Procede pour le vernissage des objets conducteurs
WO2019123822A1 (ja) プライマー組成物、プライマー塗膜及びその形成方法、並びに塗膜の形成方法
EP4225846A2 (de) Leicht recycelbare pigmentierte pulverförmige zusammensetzung zur beschichtung von substraten
JPS6136991B2 (de)

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE CH DE GB IT NL SE

AK Designated contracting states

Designated state(s): BE CH DE GB IT NL SE

17P Request for examination filed

Effective date: 19821029

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE CH DE GB IT LI NL SE

REF Corresponds to:

Ref document number: 3266260

Country of ref document: DE

Date of ref document: 19851024

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910125

Year of fee payment: 10

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

Ref country code: SE

Payment date: 19910208

Year of fee payment: 10

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

Ref country code: CH

Payment date: 19910227

Year of fee payment: 10

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910228

Year of fee payment: 10

Ref country code: DE

Payment date: 19910228

Year of fee payment: 10

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

Ref country code: BE

Payment date: 19910403

Year of fee payment: 10

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

Ref country code: GB

Effective date: 19920205

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

Ref country code: SE

Effective date: 19920206

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

Ref country code: BE

Effective date: 19920228

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

Ref country code: LI

Effective date: 19920229

Ref country code: CH

Effective date: 19920229

BERE Be: lapsed

Owner name: ATO CHIMIE

Effective date: 19920228

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

Ref country code: NL

Effective date: 19920901

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19921103

EUG Se: european patent has lapsed

Ref document number: 82400214.1

Effective date: 19920904