EP1877360A1 - Materiau de revetement, procede de fabrication et utilisation pour la fabrication de revetements adhesifs anticorrosion - Google Patents

Materiau de revetement, procede de fabrication et utilisation pour la fabrication de revetements adhesifs anticorrosion

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Publication number
EP1877360A1
EP1877360A1 EP06754967A EP06754967A EP1877360A1 EP 1877360 A1 EP1877360 A1 EP 1877360A1 EP 06754967 A EP06754967 A EP 06754967A EP 06754967 A EP06754967 A EP 06754967A EP 1877360 A1 EP1877360 A1 EP 1877360A1
Authority
EP
European Patent Office
Prior art keywords
coating material
radical
group
material according
actinic radiation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06754967A
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German (de)
English (en)
Inventor
Maxime Allard
Dominique Kauffer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF Coatings GmbH
Original Assignee
BASF Coatings GmbH
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Filing date
Publication date
Application filed by BASF Coatings GmbH filed Critical BASF Coatings GmbH
Publication of EP1877360A1 publication Critical patent/EP1877360A1/fr
Withdrawn legal-status Critical Current

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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
    • C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
    • C08F290/06—Polymers provided for in subclass C08G
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/08—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
    • C08F290/14—Polymers provided for in subclass C08G
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/28—Treatment by wave energy or particle radiation
    • 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
    • C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
    • C09D143/02—Homopolymers or copolymers of monomers containing phosphorus
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/002—Priming paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
    • C09D5/086—Organic or non-macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/24—Electrically-conducting paints

Definitions

  • Coating material process for its preparation and its use for the production of adherent, corrosion-inhibiting coatings
  • the present invention relates to a new actinic radiation curable coating material. Moreover, the present invention relates to a novel process for the preparation of an actinic radiation curable coating material. Furthermore, the present invention relates to the use of the new coating material or of the coating material produced with the aid of the new process for the production of adherent, corrosion-inhibiting coatings, in particular coil coatings, especially primer layers.
  • Adhesive, corrosion-inhibiting coatings on metal strips or coils in particular from the usual and known utility metals, such as zinc, aluminum or bare, galvanized, galvanized and phosphated steel, using the coil-coating process (Rompp Encyclopedia Paints and printing inks, Georg Thieme Verlag , Stuttgart, New York, 1998, page 617, "Walzlacktechnik", and page 55, "Bandbe harshung"), it is necessary to subject the surface of the metal strips to a pretreatment. However, in the context of the coil coating process, this represents an additional process step which it would like to forego for economic and technical reasons.
  • primer layers serve to promote adhesion between the metal surface and the overlying coatings. They can also contribute to a certain extent to corrosion protection. Usually, they are made of pigmented, solvent-based, thermally curable brooming materials. However, this requires complex systems for suction and disposal of the emitted solvents, and the coils must be heated to high temperatures ("peak metal temperatures", PMT) to cure the applied broom ichtungsstoffe in the necessary speed for the coil coating process. It is therefore highly desirable to be solvent-free, with actinic radiation rapidly curable coating materials for the production of primer layers available to have.
  • German patent application DE 102 56 265 A1 discloses a curable with actinic radiation, of organic solvents substantially or completely free, liquid coating material in the form of a water-in-oil dispersion and a pH ⁇ 5, containing
  • the coating material may contain at least one additive (E), preferably from the group consisting of polyphosphoric acid, dry solids, of the pigments (D), organic and inorganic, colored and achromatic, optically effecting, electrically conductive, magnetically shielding and fluorescent pigments, transparent and opaque, organic and inorganic fillers, nanoparticles, anti-settling agents, oligomeric and polymeric binders other than component (A), UV absorbers, light stabilizers, radical scavengers, photoinitiators, deaerators, slip additives, polymerization inhibitors, defoamers, of the components (C) various emulsifiers and wetting agents, adhesion promoters, leveling agents, film-forming aids, rheology-controlling additives and flame retardants; can be selected.
  • additives preferably from the group consisting of polyphosphoric acid, dry solids, of the pigments (D), organic and inorganic, colored and achromatic, optically effecting, electrically conductive,
  • the known Besen ichtungsstoff can be easily produced, is highly reactive and yet stable on storage, can be easily and easily applied especially in the context of the coil coating process and can be cured at low curing temperatures quickly and without emission of volatile organic compounds. It provides coatings, in particular coil coatings, especially primer coatings, which also on non-pretreated metal surfaces, especially the surface of utility metals such as zinc, aluminum or bare, galvanized, electrogalvanized and phosphated steel, high adhesion, a high interlayer adhesion to the overlying Coatings and an excellent corrosion protection, especially against white corrosion, have.
  • actinic radiation-curable coating materials which are preferably coated with electron beam radiation (ESH) (cf., for example, Goldschmidt and H.-H. J. Streitberger, BASF Handbook Lackiertechnik, Vincentz Verlag, Hannover, 2002, pages 638 to 641) can be cured quickly. Because of the high pigment content, curing with UV radiation is not possible or only possible with great difficulty. It has been found, however, that the primer coatings prepared from the known coating material by the hardening with ESH and under inert gas, do not reach the performance level of primer coatings that have been prepared by curing with UV radiation and heat. In particular, they do not achieve the required direct adhesion to non-pretreated metal surfaces and the required intercoat adhesion to the highly pigmented topcoats or topcoats.
  • ESH electron beam radiation
  • the object of the present invention is to provide a new, pigmented, curable with actinic radiation, of organic solvents substantially or completely free coating material, which no longer has the disadvantages of the prior art, but which can be easily produced, highly reactive and yet is stable on storage, particularly easy and problem-free, especially in the context of Applicable coil coating method and can be cured at low curing temperatures very quickly and without the emission of volatile organic compounds and coatings, especially coil coatings, especially primer coatings, which also on non-pretreated metal surfaces, especially the surface of use metals such as zinc , Aluminum or bare, galvanized, electrogalvanised and phosphated steel, a particularly high adhesion, a particularly high intercoat adhesion to the overlying coatings and an excellent corrosion protection, especially against white corrosion have.
  • the advantageous performance property profile of the new Besen ichtungsstoff made new coatings should also be achieved when the coating material using the ESH, especially under inert conditions, is cured.
  • the new coating material is also intended to make the production of new, electrically conductive, weldable coatings of outstanding
  • Allow corrosion protection effect which are free of zinc or iron phosphides.
  • the substitution of the iron phosphides would be a particular advantage because this class of electrically conductive pigments due to their high hardness in the production of the relevant coating materials mechanically damage the equipment, in particular by abrasion.
  • the new, electrically conductive, weldable coatings should be able to be coated directly with electrocoating without subsequent heat curing.
  • the new coatings should have a particularly high flexibility and hardness.
  • X is an aromatic radical having 6 to 14 carbon atoms, a heterocyclic aromatic radical having 5 to 20 ring atoms or an alkyl radical having 6 to 30 carbon atoms,
  • Gr organic radical having at least one activatable with actinic radiation group
  • (C) at least one component selected from the group consisting of nanoparticles and electrically conductive pigments.
  • the new coating material is referred to as "inventive broom ichtungsstoff”.
  • the inventive broom ichtungsstoff no longer had the disadvantages of the prior art, but was easy to produce, was highly reactive and yet stable on storage, was particularly easy and easy to apply especially in the context of the coil coating process, and was cured at very low curing temperatures very quickly and without the emission of volatile organic compounds and new coatings, especially coil coatings, especially primer coatings, supplied, which also on non-pretreated metal surfaces, especially the surface of utility metals, such as zinc, aluminum or bare, galvanized , galvanized and phosphated steel, a particularly high adhesion, a particularly high intercoat adhesion to the overlying coatings and an excellent corrosion protection effect, especially against white corrosion had.
  • the advantageous performance property profile of the coatings according to the invention prepared from the coating material according to the invention was also achieved when the coating material according to the invention was cured by means of ESH, in particular under inert conditions.
  • the coating material according to the invention also allowed the production of new, electrically conductive, weldable coatings of excellent anticorrosive action which were free of zinc or iron phosphides.
  • the substitution of the iron phosphides was a particular advantage because this class of electrically conductive pigments due to their high hardness in the manufacture of the relevant broom ichtungsstoffe damage the equipment mechanically, especially by abrasion.
  • the electrically conductive, weldable coatings according to the invention could be coated directly with electrodeposition paints without subsequent heat curing.
  • the coating material according to the invention is liquid, d. Although it contains solid, non-liquid constituents, it is in a fluid state at room temperature and under the customary and known conditions of preparation, storage and application, so that it can be used in the coil coating by means of the customary and known methods. Process applied application methods can be processed.
  • the coating material according to the invention is preferably present as a water-in-oil dispersion in which the discontinuous aqueous phase is finely dispersed in the continuous organic phase.
  • the diameter of the droplets of the aqueous phase can vary widely; it is preferably 10 nm to 1000 ⁇ m, in particular 100 nm to 800 ⁇ m.
  • Besen ichtungsstoffs are their hydrophilicity or hydrophobicity (see Rompp Online, 2002, “hydrophobicity”, “hydrophilicity”) appropriately distributed over the aqueous phase and organic phase or exist as a separate solid phase.
  • the coating material or its aqueous phase according to the invention preferably has a pH ⁇ 5, preferably ⁇ 4 and in particular from 3 to 3.5.
  • the coating material of the invention is substantially or completely free of organic solvents. This means that its content of organic solvents is ⁇ 5, preferably ⁇ 3 and preferably ⁇ 1 wt .-%. In particular, the content is below the detection limits of the usual and known qualitative and quantitative detection methods for organic solvents.
  • the coating material according to the invention contains at least two, in particular two, compounds of the general formula I:
  • X is an aromatic radical having 6 to 14, preferably 6 to 10, carbon atoms, hetero-cyclic aromatic radical having 5 to 20, preferably 6 to 10, ring atoms or alkyl radical having 6 to 30, preferably 8 to 20, in particular 10 to 16, carbon atoms; preferably aromatic radical having 6 to 10 carbon atoms or alkyl radical having 10 to 16 carbon atoms; in particular phenyl radical or lauryl radical;
  • Y is trivalent organic radical, preferably aliphatic radical, preferably aliphatic radical having 3 carbon atoms, in particular 1,2,3-propanetriyl;
  • Z linking functional group preferably selected from the group consisting of ether, thioether, carboxylic ester, thiocarboxylic, carbonate, thiocarbonate, phosphoric acid, thiophosphoric,
  • amide, amine, thioamide, phosphoric acid amide, thiophosphoric acid amide, phosphonic acid amide, thiophosphonic acid amide, sulfonamide imide, urethane, hydrazide, urea , Thiourea, carbonyl, thiocarbonyl, sulfone, sulfoxide or siloxane groups.
  • Groups are the ether, carboxylic ester, carbonate, carboxamide, urea, urethane, imide and carbonate groups are preferred and the carboxylic acid ester group and in particular carboxylic acid ester group, which is defined by the radicals Y and Gr according to the general formula II:
  • Gr organic radical having at least one, in particular one, activatable with actinic radiation group
  • Actinic radiation includes electromagnetic radiation, such as near infrared (NIR), visible light, UV radiation, X-radiation or gamma radiation, preferably UV radiation, and corpuscular radiation, such as electron radiation.
  • NIR near infrared
  • UV radiation visible light
  • UV radiation X-radiation or gamma radiation
  • corpuscular radiation such as electron radiation.
  • Alpha radiation, beta radiation, proton radiation or neutron radiation preferably electron radiation.
  • the actinic radiation is electron radiation.
  • the activatable groups with actinic radiation contain at least one, in particular one, activatable with actinic radiation bond.
  • This is understood to mean a bond which becomes reactive upon irradiation with actinic radiation and undergoes polymerization reactions and / or crosslinking reactions with other activated bonds of its type which proceed by free-radical and / or ionic mechanisms.
  • suitable bonds are carbon-hydrogen single bonds or carbon-carbon, carbon-oxygen, carbon-nitrogen, carbon-phosphorus or carbon-silicon single bonds or double bonds or carbon-carbon triple bonds.
  • the carbon-carbon double bonds and triple bonds are advantageous and are therefore preferably used according to the invention. Particularly advantageous are the carbon-carbon double bonds, which is why they are particularly preferably used. For the sake of brevity, they are referred to below as "double bonds".
  • R is a single bond to an atom of the linking functional group Z described above, in particular carbonyl
  • Carbonyloxy group and divalent organic group preferably carbon-carbon single bond
  • R 1 , R 2 and R 3 are hydrogen atom and organic radical; where at least two of the radicals R, R 1 , R 2 and R 3 may be linked together cyclically.
  • suitable divalent organic radicals R include or consist of alkylene, cycloalkylene and / or arylene groups. Highly suitable alkylene groups contain one carbon atom or 2 to 6 carbon atoms. Highly suitable cycloalkylene groups contain from 4 to 10, especially 6, carbon atoms. Highly suitable arylene groups contain 6 to 10, especially 6, carbon atoms.
  • suitable organic radicals R 1 , R 2 and R 3 contain or consist of alkyl, cycloalkyl and / or aryl groups. Highly suitable alkyl groups contain one carbon atom or 2 to 6 carbon atoms. Highly suitable cycloalkyl groups contain 4 to 10, especially 6, carbon atoms. Highly suitable aryl groups contain from 6 to 10, especially 6, carbon atoms.
  • the organic radicals R, R 1 , R 2 and R 3 may be substituted or unsubstituted. However, the substituents must not interfere with the performance of the process of the invention and / or inhibit the activation of the groups with actinic radiation. Preferably, the organic radicals R, R 1 , R 2 and R 3 are unsubstituted.
  • radicals Gr of the general formula III are vinyl, 1-methylvinyl, 1-ethylvinyl, propen-1-yl, styryl, cyclohexenyl,
  • Dicyclopentadiencarboxylate groups preferably (meth) acrylate groups, in particular acrylate groups.
  • particularly advantageous compounds (A1) are phenylglycidyl ether monoacrylates, as sold, for example, by Cray Valley under the name Aromatic Epoxy Acrylates CN 131B.
  • Examples of particularly advantageous compounds (A2) are lauryl glycidyl ether monoacrylates, such as those sold by Cray Valley under the name Aliphatic Epoxy Acrylate Monofunctional CN 152.
  • the content of the coating material according to the invention on the compounds (A) can vary widely and depends on the requirements of the individual case.
  • the content of the compounds (A2), in each case based on the coating material of the invention, is preferably from 5 to 50, preferably from 10 to 40, and in particular from 15 to 30,% by weight.
  • the weight ratio of (A1) :( A2) is preferably 4: 1 to 0.8: 1, preferably 3: 1 to 1.2: 1, more preferably 2: 1 to 1.2: 1, and in particular 1, 6: 1 to 1.4: 1.
  • the coating material according to the invention comprises at least one, especially one, acidic, corrosion-inhibiting pigment (B) based on polyphosphoric acid.
  • B acidic, corrosion-inhibiting pigment
  • Aluminum polyphosphates are common and known products and are sold, for example, under the trademark Targon® by BK Giulini.
  • the content of the coating material according to the invention on the pigment (B) can vary very widely and depends on the requirements of the individual case.
  • the content of pigment (B), in each case based on the coating material according to the invention, is preferably from 1 to 60, preferably from 4 to 50, and in particular from 5 to 40,% by weight.
  • the coating material of the invention further comprises at least one component (C) selected from the group consisting of nanoparticles and electrically conductive pigments. At least one, in particular one, kind of nanoparticles are used as nanoparticles (C). Preference is given to using inorganic nanoparticles (C).
  • the nanoparticles (C) are selected from the group consisting of main and subgroup metals and their compounds. Preference is given to
  • Periodic table of the elements and the lanthanides selected Particular preference is given to boron, aluminum, gallium, silicon, germanium, tin, arsenic, antimony, silver, zinc, titanium, zirconium, hafnium, vanadium, niobium, tantalum, molybdenum,
  • Tungsten and cerium in particular aluminum, silicon, silver, cerium, titanium and zirconium used.
  • the compounds of the metals are the oxides, oxide hydrates, sulfates or phosphates.
  • the nanoparticles (C) preferably have a primary particle size ⁇ 50 nm, preferably 5 to 50 nm, in particular 10 to 30 nm.
  • the electrically conductive pigment (C) is selected from the group consisting of metal-doped oxides of zinc, tin, indium and antimony, preferably indium-tin oxide, aluminum-zinc oxide, titanium-tin oxide, antimony-antimony oxide and antimony-tin oxide.
  • the electrically conductive pigment (C) may also be nanoscale.
  • the content of the brooming agent according to the invention in constituents (C) is from 1 to 60, preferably from 4 to 50, and in particular from 5 to 40,% by weight, based in each case on the coating material according to the invention.
  • the coating material according to the invention may also contain at least one additive (D) in effective amounts.
  • the additive (D) from the A group consisting of water, polyphosphoric acid, phosphonic acids having at least one activatable group with actinic radiation, acidic esters of polyphosphoric acid and at least one compound containing at least one hydroxyl group and at least one activatable with actinic radiation group, acid esters of monophosphoric acid and at least one compound containing at least one hydroxyl group and at least one group activatable with actinic radiation, compounds other than compounds (A) having at least one group activatable with actinic radiation, driers, pigments other than pigments (C), organic and inorganic, colored and achromatic, optically effecting, electrically conductive, magnetically shielding and fluorescent pigments, transparent and opaque, organic and inorganic fillers, nanoparticles, oligomeric and polymeric binders, UV absorbers, light stabilizers, radical scavengers , photoinitiators, de
  • the additive (D) is selected from the group consisting of water; polyphosphoric acid; Phosphonic acids having at least one activatable group with actinic radiation, in particular vinylphosphonic acid; and acidic esters of polyphosphoric acid and at least one compound containing at least one hydroxyl group and at least one activatable group with actinic radiation, and acidic esters of monophosphoric acid and at least one compound containing at least one hydroxyl group and at least one activatable with actinic radiation group, such as in German Patent Application DE 102 56 265 A1, page 7, paragraphs [0057] to [0062], i. V. m. Page 6, paragraphs [0044] and [0045] are selected.
  • water is used in an amount of from 1 to 10, preferably from 2 to 8, in particular from 3 to 7,% by weight, based in each case on the coating material according to the invention.
  • the phosphonic acids and the acidic esters of monophosphoric acid and polyphosphoric acid in an amount of 0.05 to 5, preferably 0.5 to 4 and in particular 1 to 3 wt .-%, each based on the coating material according to the invention.
  • the preparation of the coating material according to the invention is preferably carried out by mixing the constituents described above in suitable mixing units such as stirred tanks, stirred mills, extruders, kneaders, Ultraturrax, line dissolvers, static mixers, micromixers, sprocket dispersers, pressure relief nozzles and / or microfluidizers. Preference is given here to the operation of excluding light of a wavelength ⁇ ⁇ 550 nm or with complete exclusion of light in order to prevent premature crosslinking of the constituents which contain activatable groups with actinic radiation.
  • suitable mixing units such as stirred tanks, stirred mills, extruders, kneaders, Ultraturrax, line dissolvers, static mixers, micromixers, sprocket dispersers, pressure relief nozzles and / or microfluidizers. Preference is given here to the operation of excluding light of a wavelength ⁇ ⁇ 550 nm or with complete exclusion of light in order to prevent premature
  • the coating materials according to the invention are outstandingly suitable for the production of coatings of all kinds. In particular, they are suitable as coil coating paints. In addition, they are outstandingly suitable for the production of coatings on all utility metals, in particular bare steel, galvanized, electrogalvanized and phosphated steel, zinc and aluminum, coatings, in particular primer coatings, and SMC (Sheet Molded Compounds) and BMC (Bulk Molded Compounds ).
  • the coatings according to the invention are outstandingly suitable as clearcoats, topcoats, temporary or permanent protective coatings, primer coatings, sealants and anti-fingerprint coatings, but especially as primer coatings.
  • the coatings according to the invention in particular the primer coatings according to the invention, also meet non-pretreated metal surfaces, for example non-pretreated HDG (hot dipped galvanized) steel, at least the requirements of Class IV of the Usinor specification for outdoor components, in particular with regard to adhesion , the flexibility, the hardness, the chemical resistance, the inter-layer adhesion and the anticorrosion effect, in full.
  • non-pretreated metal surfaces for example non-pretreated HDG (hot dipped galvanized) steel
  • Class IV of the Usinor specification for outdoor components in particular with regard to adhesion , the flexibility, the hardness, the chemical resistance, the inter-layer adhesion and the anticorrosion effect, in full.
  • the application of the coating material according to the invention has no special features, but can be achieved by all customary application methods, such as e.g. Spraying, knife coating, brushing, pouring, dipping, trickling or rolling done. In general, it is advisable to work under the exclusion of actinic radiation in order to avoid premature crosslinking of the coating materials according to the invention.
  • the water contained in the coating material of the invention can be evaporated in a simple manner, which is also referred to as flash-off. This is preferably done by the short-term inductive heating of the metal substrates.
  • electron beam sources are possible, such as for example, in A. Goldschmidt and H. -J. Streitberger, BASF manual coating technology, Vincentz Verlag, Hannover, 2002, pages 638 to 641, or in Rompp Lexikon coatings and printing inks, Georg Thieme Verlag, Stuttgart New York, 1998, "electron beam”, “electron beam hardening” and “electron beam” described become.
  • a radiation dose of 10 to 200, preferably 20 to 100 and in particular 30 to 80 KGray is used during the irradiation.
  • the radiation intensity can vary widely. It depends in particular on the radiation dose on the one hand and the duration of irradiation on the other hand. The duration of irradiation depends on the band or feed rate of the substrates in the irradiation facility and vice versa for a given radiation dose.
  • the coating material according to the invention can also be only partially cured and overcoated in this state with at least one further, in particular with a curable with actinic radiation coating material, after which all applied layers cured together with actinic radiation.
  • the process times are further shortened, and the inter-layer adhesion is further improved.
  • the metal foils to PMT of 240 0 C and more to heat it is also unnecessary to extract and dispose of volatile organic compounds, so that the apparatus, safety and energy costs can be significantly reduced.
  • the resulting coatings according to the invention are highly flexible, highly damage-free without damage, resistant to chemicals, weather-resistant, resistant to condensation water and salt water, and of high adhesion to the substrates and other coatings. All in all, they still give an excellent visual impression. They can easily be overcoated, after which the resulting composites or laminates have excellent intercoat adhesion.
  • broom 1 In the absence of actinic radiation, broom 1 was completely storage-stable for at least one month. He was excellently suited for the production of primer paints.
  • PAM 300 polypropylene glycol monoacrylate
  • Coating material 2 was completely storage-stable for at least one month, excluding actinic radiation. He was excellently suited for the production of primer paints.
  • Untreated steel plates made of HDG (hot dipped galvanized) steel from Chemetall were used as substrates.
  • Example 3 the coating material 1 was applied in a layer thickness of 6 to 7 microns. The water contained therein was evaporated for one minute at 125 ° C. The resulting layer was cured with electron beam radiation (50 KGray).
  • the resulting coating was excellently deformable and had an excellent anticorrosive effect (T-bend test: 0 and tape: 0, salt water spray test: 7 days OK i.O.). It could be painted over with usual and well-known Topcoats.
  • the resulting laminates had excellent interlayer adhesion and excellent anticorrosive effect (salt water spray test: 21 days i.O.).
  • Example 4 the coating material 2 was applied in a layer thickness of 2 to 3 microns. The water contained therein was evaporated for 30 seconds at 120 0 C. The resulting layer was cured with electron beam radiation (50 KGray).
  • the resulting coating could easily be overcoated with electrodeposition paints. During their thermal curing, no blistering or other surface defects occurred. The interlayer adhesion, the deformability and the anticorrosion effect were excellent (T-bend test: 0 and tape: 0.5, salt water spray test: 120 hours OK.

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  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Paints Or Removers (AREA)

Abstract

L'invention concerne un matériau de revêtement liquide essentiellement ou entièrement libre de solvants organiques, durcissable par rayonnement, contenant (A) au moins deux composés représentés par la formule générale X-O-Y(-OH)-Z-Gr (I) dans laquelle les variables ont les significations suivantes : X est un radical aromatique portant 6 à 14 atomes de carbone, un radical aromatique hétérocyclique portant 5 à 20 atomes de cycle ou un radical alkyl portant 6 à 30 atomes de carbone ; Y est un radical organique à liaison triple ; Z est un groupe fonctionnel de liaison ; et, Gr est un radical organique comportant au moins un groupe pouvant être activé par rayonnement actinique, à la condition qu'au moins un des deux composés (A) présente un radical aromatique ou aromatique hétérocyclique X (= composé A1) et au moins un des deux composés (A) présente un radical alkyl X (= composé A2). Ledit matériau contient également (B) au moins un pigment anticorrosion acide à base d'acide polyphosphorique ; et, (C) au moins un constituant choisi dans le groupe composé de nanoparticules et de pigments conducteurs. L'invention concerne également des procédés de fabrication dudit matériau de revêtement et son utilisation.
EP06754967A 2005-05-06 2006-05-03 Materiau de revetement, procede de fabrication et utilisation pour la fabrication de revetements adhesifs anticorrosion Withdrawn EP1877360A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005021086A DE102005021086A1 (de) 2005-05-06 2005-05-06 Beschichtungsstoff, Verfahren zu seiner Herstellung und seine Verwendung zur Herstellung haftfester, korrosionshemmender Beschichtungen
PCT/EP2006/061991 WO2006120134A1 (fr) 2005-05-06 2006-05-03 Materiau de revetement, procede de fabrication et utilisation pour la fabrication de revetements adhesifs anticorrosion

Publications (1)

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EP1877360A1 true EP1877360A1 (fr) 2008-01-16

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EP06754967A Withdrawn EP1877360A1 (fr) 2005-05-06 2006-05-03 Materiau de revetement, procede de fabrication et utilisation pour la fabrication de revetements adhesifs anticorrosion

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Country Link
US (1) US20080251771A1 (fr)
EP (1) EP1877360A1 (fr)
JP (1) JP2008540719A (fr)
BR (1) BRPI0612795A2 (fr)
CA (1) CA2606874A1 (fr)
DE (1) DE102005021086A1 (fr)
MX (1) MX2007012928A (fr)
RU (1) RU2007144937A (fr)
WO (1) WO2006120134A1 (fr)
ZA (1) ZA200709225B (fr)

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WO2013178525A1 (fr) * 2012-06-01 2013-12-05 Valsem Industries Sas Film composé à faible incidence sur l'environnement destiné à la protection contre la corrosion

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Also Published As

Publication number Publication date
DE102005021086A1 (de) 2006-11-09
ZA200709225B (en) 2008-06-25
MX2007012928A (es) 2007-12-12
JP2008540719A (ja) 2008-11-20
US20080251771A1 (en) 2008-10-16
CA2606874A1 (fr) 2006-11-16
WO2006120134A1 (fr) 2006-11-16
BRPI0612795A2 (pt) 2010-11-30
RU2007144937A (ru) 2009-06-20

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