[go: up one dir, main page]

WO2003029361A2 - Couches protectrices en polymere - Google Patents

Couches protectrices en polymere Download PDF

Info

Publication number
WO2003029361A2
WO2003029361A2 PCT/DE2002/003655 DE0203655W WO03029361A2 WO 2003029361 A2 WO2003029361 A2 WO 2003029361A2 DE 0203655 W DE0203655 W DE 0203655W WO 03029361 A2 WO03029361 A2 WO 03029361A2
Authority
WO
WIPO (PCT)
Prior art keywords
corrosion protection
protection layer
polymer
corrosion
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/DE2002/003655
Other languages
German (de)
English (en)
Other versions
WO2003029361A3 (fr
Inventor
Andreas Plagge
Martin Stratmann
Hans-Jürgen ADLER
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.)
Friedrich Alexander Universitaet Erlangen Nuernberg
Original Assignee
Friedrich Alexander Universitaet Erlangen Nuernberg
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 Friedrich Alexander Universitaet Erlangen Nuernberg filed Critical Friedrich Alexander Universitaet Erlangen Nuernberg
Priority to AU2002340756A priority Critical patent/AU2002340756A1/en
Publication of WO2003029361A2 publication Critical patent/WO2003029361A2/fr
Publication of WO2003029361A3 publication Critical patent/WO2003029361A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C09D201/00—Coating compositions based on unspecified macromolecular compounds
    • C09D201/02—Coating compositions based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
    • C09D201/025—Coating compositions based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups containing nitrogen atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/54—Silicon-containing compounds
    • C08K5/544—Silicon-containing compounds containing nitrogen

Definitions

  • the present invention relates to polymeric protective layers, in particular for applications in corrosion protection for metals and metal alloys, and to a method for applying such a corrosion protection layer.
  • Such corrosion protection layers are usually very complex. They are often used as multi-layer systems, in which a zinc layer is first applied galvanically to the steel and this layer is chromated or phosphated again. The actual primer, which likewise consists of a multicomponent system, is then applied to it, the pigments based on epoxy, polyurethane or alkyd resin, which builds up the organic layer and constitutes a barrier to water, also have a barrier effect should build up or substances release that passivate the substrate to be protected and / or inhibit its dissolution. In addition to the very complex process technology for producing such corrosion protection layers, the environmentally hazardous potential, especially when using chromates, and the resulting health risks are of particular disadvantage with such a corrosion protection layer.
  • the present object is achieved by a corrosion protection layer with the features of appended claim 1.
  • a method for applying such a corrosion protection layer is also the subject of the invention.
  • the invention further relates to the use of a corrosion protection layer for coating an optical storage medium and to a storage medium provided with a corrosion protection layer.
  • Advantageous further developments are given in claims 14 and 16.
  • the corrosion protection layer is based on a polymer which contains acidic functional groups, at least some of the functional groups being linked with at least one nitrogen compound to form a salt-like bond, and at least one in the corrosion layer being increased the pH value and / or water input into the corrosion protection layer and / or component of a polymerizable system which is polymerizable by the action of atmospheric oxygen.
  • the at least one further compound contained in the corrosion protection layer is the at least one monomer that can be polymerized by increasing the pH and / or by introducing water into the corrosion protection layer and / or by reaction with atmospheric oxygen, or a corresponding component of a polymerizable system.
  • the polymeric protective layers according to the invention are fundamentally versatile and can be used. In addition to corrosion protection for metals and metal alloys, they can also be used to protect non-metallic substrates such as Ceramics in building protection applications.
  • salt-like refers to the reaction product of a Brönstedt acid (here the polymer) with a Brönstedt base (here a nitrogen compound).
  • the first nitrogen compound linked to the acidic groups of the polymer serves to neutralize the otherwise acidic action of the unbuffered polymer and acting as an ion exchanger.
  • this effect would lead to a more or less rapid dissolution of the metal to be protected, ie the substrate.
  • the at least one polymerizable monomer contained in the corrosion protection layer which is caused by the increase in pH and / or Water entry in the corrosion protection layer is polymerizable, serves to close any existing layer defects or damage.
  • the combination according to the invention is particularly advantageous in that it can be produced with little effort and at the same time, as a single-layer system, offers adequate corrosion protection with sufficient durability, with the formation of a barrier function, in particular against chloride ions.
  • the base for the corrosion protection layer according to the invention can generally be formed by any polymer which has acidic functional groups or into which acidic functional groups can be introduced. It is also preferred if the acidic functional polymer is soluble in water or in an aqueous solvent mixture, because water or aqueous solvent systems are significantly less polluting in comparison to many purely organic solvents or solvent systems.
  • the polymers which can be used in the present invention are in particular the polyacrylates and their derivatives, polymaleinates and their derivatives and the polyolefins, of course including all conceivable blends which are subsequently provided with acidic groups, for example by sulfonation, and polystyrene, including. its derivatives and the polystyrene-containing blends, which are also provided with acid groups after layer application, for example by sulfonation.
  • polyvinylsulfonic acid including all copolymers of vinylsulfonic acid, for example with acrylonitrile, methyl methacrylate, vinyl acetate, acrylamide, ethyl acrylate or styrene, polyvinylsulfuric acid, polyvinylphosphonic acid and liuginsulfonic acid are preferably used including their derivatives and copolymers, in particular with the aforementioned compounds, and blends.
  • the polymer forming the basis for the corrosion protection layer is a cellulose derivative and in particular a cellulose phosphate.
  • a cellulose phosphate The production of such a cellulose phosphate is known to the person skilled in the art (Kowaiek, thesis, TU Dresden, 1999).
  • the acidic functional groups are by no means limited to phosphate groups.
  • all acidic groups with a cation exchange function can be used as acidic functional groups, in particular carboxylate, phosphate, phosphonate, phosphinate, sulfate and / or sulfonate. It is expressly included that the polymer has different acidic functional groups, which can also differ in their acidity.
  • Polymers with the aforementioned acidic groups which have at least one active hydrogen atom, cause corrosion phenomena in various metals, such as steel, aluminum, etc. by dissolving out metal ions due to the acidity of the functional groups in the polymer. These corrosion phenomena are generally referred to as flat acid corrosion.
  • the metal ions penetrate into the polymer layer, which is why these layers behave like ion exchangers, in which metal ions are detached from the substrate with the formation of hydrogen due to acid corrosion and diffuse into the organic layer, where they are bound by the functional groups, such as phosphate.
  • this process can be prevented if the active hydrogen atoms of the acidic groups of the polymer used are combined with a or several amines with corrosion-inhibiting potential are neutralized to form ammonium structures.
  • the at least one first nitrogen compound is selected from the group consisting of corrosion-inhibiting amines and morpholine.
  • the compound referred to as a basic amine with a corrosion inhibition effect can also comprise a polymer, for example polyethyleneimine.
  • the nitrogen compound bound to the polymer in a salt-like manner neutralizes the acidic groups of the polymer and acts as a corrosion inhibitor, but can also occur as part of the polymerizing system, such as, for example, polyethyleneimine in the presence of a halogenated alkane introduced into the layer, such as, for example, C 4 H 8 CI 2 .
  • the cyclic amines, such as morpholine and its derivatives already mentioned, are particularly effective as corrosion inhibitors in low-alloy steels such as ST37. They advantageously suppress the dissolution of the oxide cover layer or inhibit the metal dissolution by inhibiting the anodic partial reaction. They are not readily oxidizable and are not readily oxidized by atmospheric oxygen.
  • Polyvinylamine and polyvinylpyrridine, each including. their derivatives can be used as a basic amine with a corrosion inhibition effect in the
  • both the polymer and the base metal can in principle be damaged.
  • cathodic delamination is a process that separates into two partial reactions can be. If a partial reaction, for example metal dissolution as an anodic partial step, is inhibited, then the other partial reaction, ie the cathodic partial step or the oxygen reduction, can no longer take place.
  • Typical corrosion inhibitors mostly act through specific adsorption on metal oxide crystal surfaces (in particular adsorption on semi-crystal layers), in which they extremely slow the dissolution of these surfaces, so that the corrosive dissolution of the base metal is prevented.
  • 2-Mercaptobenzimidazole can be mentioned as a corrosion inhibitor that prevents the dissolution of iron by specific adsorption. It has been proven to prevent acid corrosion from iron. However, this amine is a very weak base and cannot be bound to the acid groups in salt form. In certain polymer systems, however, it is possible for this compound to be introduced in a molecularly disperse manner because the amino groups present Hydrogen bonds to OH groups of the polymer enable.
  • An example of such a polymer is the cellulose phosphate already mentioned.
  • an at least second nitrogen compound present in the corrosion protection layer is 2-mercaptobenzimidazole.
  • the corrosion protection layer it is necessary for the corrosion protection layer to have at least one contains polymerizable monomer or generally a corresponding component of a polymerizable system by increasing the pH and / or water input into the corrosion protection layer and / or by the action of atmospheric oxygen. This enables the defects in the layer, which, as transport channels, to allow the mass transfer from the layer to the environment, to be closed again.
  • polymerizable monomers are available, which are acidic functional groups of the polymer can be bound and polymerize by increasing the pH and / or water input into the corrosion protection layer.
  • the polymerizable monomer preferably consists of trialkoxysilane compounds, in particular aminotrimethoxysilane or aminotriethoxysilane, compounds with at least one activated double bond and / or compounds with at least two Si — H bonds.
  • Amino compounds are particularly preferred since they can be used to bind to the acidic functional groups of the polymer.
  • the monomers for example silane derivatives, have a terminal amino function and can be spatially crosslinked via three alkoxy groups.
  • alkoxy groups are first hydrolytically split in contact with the aqueous electrolyte solution and then crosslink to form three-dimensional networks. This limits the permanent exchange of ions between the layer and the electrolyte solution.
  • the alkoxy groups hydrolyze relatively slowly and prevent the monomers from condensing too quickly. A polymerization by air humidity before the release within the layer is therefore not possible.
  • the monomer or component of a polymerizable system i.e. expressly also (co) monomers, which can be part of a multi-component polymerizable system, can e.g. be the following:
  • Hydrosilanes with the grouping R (Si-H) n , n 1-3.
  • R is an alkyl radical, for example C 4 H 9.
  • This grouping can be part of a polymerizable system in which the polymer is formed by reaction of only this one type of molecule with one another.
  • Oxiranes The functional group must appear at least once in the molecule, e.g. with chloromethyloxirane.
  • This grouping can be part of a polymerizable system in which the polymer is formed from the reaction of this one type of molecule with another type of molecule which is bound to the acid groups of the polymer in a salt-like manner via amino functions.
  • This second reactant can e.g. Polyethyleneimine or other polyvalent amine.
  • Polyvalent, halogenated alkanes for example C 4 H 8 CI 2 , the chlorine atoms preferably being arranged at the ends.
  • This grouping can be part of a polymerisable system in which the polymer is formed from the reaction of this one type of molecule with another type of molecule which is bound in a salt-like manner to the acidic groups of the polymer via amino functions.
  • the second reactant can be, for example, polyethyleneimine or another polyvalent amine.
  • Alkoxysilanes with at least one group Si (OR) n with n 1-3.
  • Unsaturated amines The molecule must contain at least one double bond in the molecule (an important example here is the reaction products from partially reacted To name resin (acids) with ammonia, as they occur in high proportions in coniferous resins). This grouping can be part of a polymerizable system in which the polymer is formed by reaction of only this one type of molecule with one another.
  • Isocyanurates There must be at least two of these groups in the molecule. This grouping can be part of a polymerizable system in which the polymer is formed from the reaction of this one type of molecule with another type of molecule which is bound to the acidic groups of the polymer in a salt-like manner via amino functions.
  • This second reactant can e.g. Be polyethyleneimine or another polyvalent amine.
  • Aldehydes and ketones At least two of these carbonyl compounds must be present in the molecule.
  • This grouping can be part of a two-component polymerizable system.
  • This grouping can be part of a polymerizable system in which the polymer results from the reaction of this one type of molecule with another type of molecule which is salt-like bound to these acidic groups of the polymer via amino functions.
  • This second reactant can e.g. Be polyethyleneimine or another polyvalent amine.
  • the monomers can optionally be bound to the acidic polymer in a salt-like manner and then contain at least one amino function in addition to the functional groups mentioned above.
  • the system to be polymerized consists of two components, only one component needs to be salt-like via amino groups to the acidic groups of the polymer be connected.
  • the non-salt-bound component is distributed in a molecularly disperse manner in the polymer layer.
  • Further components can be introduced into the protective layer consisting of the three basic components acidic polymer, corrosion inhibitor and monomer, which further improve the effectiveness with regard to a protective function, in particular the corrosion protection of a metal.
  • Another adsorption inhibitor such as Mercaptobenzimidazole can be present as a further component. This component does not have to be basic and does not have to be bound to the acid function of the polymer.
  • At least 75% of the acidic functional groups of the polymer are linked to at least one first nitrogen compound to form a salt-like bond , particularly preferably 95 to 98%.
  • a particular advantage of the corrosion protection layer according to the invention is that it is designed as a single layer and has a thickness in the range from 50 nm to 50 ⁇ m, in particular 100 to 400 nm.
  • the corrosion protection layer according to the invention usually already leads to excellent corrosion protection in the specified thickness for the various metals or alloys.
  • the corrosion protection layer is generally used as a layer which is applied to a metallic substrate, in particular to a substrate made of iron, aluminum, magnesium, copper, zinc or an alloy of one of these metals with any other metal.
  • the corrosion protection layer according to the invention can advantageously also be produced particularly easily and applied to the substrate to be protected.
  • the method according to the invention for applying the corrosion protection layer according to the invention consists in adding a quantity of the at least one first nitrogen compound, a quantity of the at least one second nitrogen compound and a quantity of the polymerizable monomer to a solution of a polymer which has acidic functional groups and stirred, then applied to a substrate and dried.
  • this application of the corrosion protection layer or this coating is carried out by spraying, spraying, dipping or in a spin coating process.
  • Two bases are bound to the acidic polymer in a salt-like manner, in which 100 ml of a 5% cellulose phosphate solution in ethanol is mixed with 0.025 g of 2-mercaptobenzimidazole (inhibitor for the inhibition of the anodic partial reaction; no salt-like binding) and stirred. About 49% of the acidic groups of the polymer are reacted with morpholine (base) and about 49% with 3- (N-allylamino) propyltrimethoxysilane (monomer). In the present case, the incomplete conversion of the phosphate groups serves to ensure a sufficiently stable connection of the polymer to the interface with the metal or metal oxide.
  • Acidic polymer cellulose phosphate
  • Corrosion inhibitor and acid buffer morpholine Polymerizable system: polyethyleneimine (salt-like bonded to the acidic layer-forming polymer) with chloromethyloxirane dispersed in the layer.
  • the monomer can, but need not, be salt-like. It has been found that corrosion inhibitors are expediently used which are not readily oxidized by atmospheric oxygen under corrosion conditions. As such, morpholine (tetrahydro-1, 4-oxazine) has proven itself.
  • the present invention thus realizes an easy-to-manufacture solution that can be applied to a substrate using simple methods, where it forms a comparatively thin corrosion protection layer.
  • the corrosion protection layer according to the invention is particularly suitable as a corrosion protection layer for optical storage media, for example a CD-R, CD-RW, DVD data carrier, etc.
  • Such data carriers usually have a layered structure, in which a carrier material made of plastic, usually polycarbonate Information carrier layer, a reflection layer usually made of metal, a protective layer and optionally a label or a colored lacquer layer are arranged one after the other.
  • the information carrier layer can contain unchangeable or changeable information.
  • information preferably repeated, can also be stored on this information carrier layer using an IR laser.
  • the reflection layer arranged on the information carrier layer can consist, for example, of aluminum, chrome / aluminum, silver, gold etc. or of alloys of these metals.
  • a protective lacquer for example a polyacrylic protective lacquer, is applied thereon. A label or a layer of colored lacquer can subsequently be applied to this protective lacquer to identify the data carrier.
  • the corrosion protection layer according to the invention can be applied directly to the metal-containing reflection layer in order to destroy or impair the data carrier by scratches or by the action of chemicals, for example solvents from the environment, which can lead to damage and / or detachment of the metal-containing reflection layer. to avoid.
  • the corrosion protection layer according to the invention is preferably applied directly to the metal-containing reflection layer.
  • a polyacrylic protective layer can subsequently be applied to the anti-corrosion layer according to the invention. But it is also possible that a conventional polyacrylic protective layer is applied directly to the metal-containing reflection layer and subsequently the corrosion protection layer according to the invention.
  • a label or a colored lacquer layer for identifying the optical storage medium can then optionally be applied to this layer structure.
  • a corrosion protection layer according to the invention having the following composition can be applied to a chrome / aluminum alloy layer as the reflection layer of an optical storage medium:
  • Polyvinylphosphonate can be used as the polymer with acidic groups
  • dodecylamine can be used as the nitrogen compound which forms salt-like bonds with some of the acidic groups of the polyvinylphosphonate.
  • 1, 4,4-tetramethyldisilethylene bis (dimethylsilyl) ethane can be used as the polymerizable monomer, which can be polymerized by increasing the pH and / or adding water to the corrosion protection layer. The components are dissolved in a methanol / water mixture.
  • the solution is 0.1 molar of polyvinyl phosphonate, 0.1 molar of 1, 1, 4,4-tetramethyldisilethylene bis (dimethylsilyl) ethane and 0.097 molar of dodecylamine and can be applied in one step.
  • the acidic groups of the polyvinyl phosphonate are reacted to about 97% with dodecylamine.
  • An optical storage medium provided with a corrosion protection layer according to the invention is due to the extremely advantageous "self-healing" property of the corrosion protection layer against damaging influences, such as in particular Scratches and chemical effects, resistant, so that there is no damage or detachment of the metal-containing reflection layer.
  • This increased scratch resistance in particular, represents a significant improvement in the handling properties and hence the life of such optical storage media.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne une couche de protection anticorrosion à base d'un polymère qui contient des groupes fonctionnels acide dont au moins une partie est rattachée, par formation d'une liaison du type sel, à au moins un premier composé azoté. Cette couche de protection anticorrosion contient en outre au moins un composant d'un système polymérisable, ce composant étant lui-même polymérisable par augmentation de la valeur du pH et/ou de la pénétration d'eau dans la couche de protection anticorrosion et/ou sous l'effet de l'oxygène atmosphérique. L'invention concerne également un support de mémorisation optique réalisé avec cette couche de protection anticorrosion.
PCT/DE2002/003655 2001-09-27 2002-09-26 Couches protectrices en polymere Ceased WO2003029361A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002340756A AU2002340756A1 (en) 2001-09-27 2002-09-26 Protective polymer layers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10147784A DE10147784A1 (de) 2001-09-27 2001-09-27 Polymere Schutzschichten
DE10147784.8 2001-09-27

Publications (2)

Publication Number Publication Date
WO2003029361A2 true WO2003029361A2 (fr) 2003-04-10
WO2003029361A3 WO2003029361A3 (fr) 2003-08-28

Family

ID=7700565

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/003655 Ceased WO2003029361A2 (fr) 2001-09-27 2002-09-26 Couches protectrices en polymere

Country Status (3)

Country Link
AU (1) AU2002340756A1 (fr)
DE (1) DE10147784A1 (fr)
WO (1) WO2003029361A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9453113B2 (en) 2004-04-15 2016-09-27 Sinvent As Method for the manufacture of polybranched organic/inorganic hybrid polymers

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110760916B (zh) * 2019-11-18 2022-04-05 和县科嘉阀门铸造有限公司 一种提高镁合金阀门耐蚀性的方法
CN116589905A (zh) * 2023-06-08 2023-08-15 安徽泽众安全科技有限公司 一种防腐结构及其制备方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW428018B (en) * 1995-06-29 2001-04-01 Ciba Sc Holding Ag Aminosilane salts and silanamides of carboxylic acids as corrosion inhibitors

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
KOWALIK, THOMAS ET AL.: "Ultrathin layers of phosphorylated cellulose derivatives on aluminium surfaces" MACROMOL. CHEM. PHYS., Bd. 201, Nr. 15, 2000, Seiten 2064-2069, XP002235248 *
PLAGGE ANDREAS ET AL.: "Lackierte Implantate" FARBE & LACK, Bd. 106, Nr. 11, November 2000 (2000-11), Seiten 48-55, XP002235247 S00P91 *
PLAGGE, ANDREAS ET AL.: "Selected Aspects of Surface Engineering with Cellulose Polymers" ADVANCED ENGINEERING MATERIALS, Bd. 2, Nr. 6, Juni 2000 (2000-06), Seiten 367-378, XP008015015 *
PLAGGE, ANDREAS: "Neuartige Cellulosepolymere-Haftvermittlung und Korosionsschutz / DISSERTATION" , SHAKER VERLAG , 19.02.2001 XP002235249 Seite 97, Zeile 1 -Seite 98, Zeile 21 Seite 109, Zeile 7 - Zeile 9 Seite 113, Zeile 16 - Zeile 20 Seite 113, Zeile 20 - Zeile 21 Seite 113, Zeile 23 -Seite 114, Zeile 4 Seite 141, Zeile 9 -Seite 145, Zeile 2 Tabelle 7 Abbildung 10.3 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9453113B2 (en) 2004-04-15 2016-09-27 Sinvent As Method for the manufacture of polybranched organic/inorganic hybrid polymers
US9487632B2 (en) 2004-04-15 2016-11-08 Sinvent As Method for the manufacture of polybranched organic/inorganic hybrid polymers

Also Published As

Publication number Publication date
WO2003029361A3 (fr) 2003-08-28
DE10147784A1 (de) 2003-04-17
AU2002340756A1 (en) 2003-04-14

Similar Documents

Publication Publication Date Title
DE69409117T2 (de) Korrosionshemmende mehrschichtige beschichtung
JP6723936B2 (ja) 金属表面用インジケータ塗料
EP2945987B1 (fr) Procédé de production d'un revêtement anti-corrosion
EP0948666B2 (fr) Procede de traitement de surfaces metalliques
DE102007021602A1 (de) Korrosionsschutzsystem für Metalle und Pigment hierfür
DE19754108A1 (de) Chromfreies Korrosionsschutzmittel und Korrosionsschutzverfahren
WO2002031222B1 (fr) Procede pour enduire des surfaces metalliques avec une composition aqueuse, composition aqueuse et utilisation des substrats ainsi revetus
DE69612216T2 (de) Metallblech mit rostpreventiver organischer beschichtung, verfahren zu dessen herstellung und behandlungsflüssigkeit dafür
DE102010036054A1 (de) Korrosionsinhibitoren in zerbrechlichen Mikrokapseln zur Passivierung von zerkratzten Metallen
EP1883679B1 (fr) Agent anticorrosion formant une couche de vernis et procede pour son application sans courant
DE69801929T2 (de) Triazinthiol enthaltendes Korrosionsschutzüberzugzusammensetzung, Verfahren zur Korrosionsschutzbehandlung und so behandelte Metallmaterialien
EP0846733A2 (fr) Substrat métallique laqué avec une couche primaire inhibitrice de corrosion à base de polyacides et procédé d'application
DE69203226T2 (de) Behandlung einer autophoretischen beschichtung mit hilfe eines organophosphonateionen enthaltende alkolischen mittels.
EP1038050A1 (fr) Enduction en continu de bandes par un revetement organique, exempt de chrome et polymerisable
WO2008058587A1 (fr) Agent anticorrosion formant une couche de vernis à fissuration réduite, et procédé pour son application sans courant
EP0741171A2 (fr) Préparation pigmentaire
EP1570109B1 (fr) Procede pour revetir des substrats metalliques avec un agent de revetement polymerisable par polymerisation radicalaire, et substrats ainsi revetus
WO2003029361A2 (fr) Couches protectrices en polymere
EP0752453B1 (fr) Elément de tÔle laquée, en particulier carrosserie d'automobiles, avec une couche primaire inhibitrice de corrosion à base de polyacides et procédé d'application
EP1024181A1 (fr) Couche anti-corrosion
DE2714138A1 (de) Korrosionsschutz-grundiermittel
KR100289142B1 (ko) 금속표면처리용 조성물
EP1531012B1 (fr) Protection supplémentaire contre la corrosion pour des piéces de tôle métallique disposant déjà d'un revêtement organique
DE19715062A1 (de) Metallisches Substrat, insbesondere eine Fahrzeugkarosserie, mit einer korrosionsschützenden Haftschicht
DE10013471A1 (de) Anti-Korrosionsschicht

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BY BZ CA CH CN CO CR CU CZ DK DZ EC EE ES FI GB GD GE GH GM HR ID IL IN IS JP KE KG KP KR KZ LC LK LS LT LU LV MA MD MG MK MN MW MZ NO NZ OM PH PL PT RO RU SD SE SI SK SL TJ TM TN TR TT TZ UA UG UZ VC VN YU ZA ZM

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ UG ZM ZW AM AZ BY KG KZ RU TJ TM AT BE BG CH CY CZ DK EE ES FI FR GB GR IE IT LU MC PT SE SK TR BF BJ CF CG CI GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP