EP0873196A1 - Procede de mise en peinture d'objets au moyen de peintures en poudre durcissant aux rayonnements - Google Patents

Procede de mise en peinture d'objets au moyen de peintures en poudre durcissant aux rayonnements

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Publication number
EP0873196A1
EP0873196A1 EP96944676A EP96944676A EP0873196A1 EP 0873196 A1 EP0873196 A1 EP 0873196A1 EP 96944676 A EP96944676 A EP 96944676A EP 96944676 A EP96944676 A EP 96944676A EP 0873196 A1 EP0873196 A1 EP 0873196A1
Authority
EP
European Patent Office
Prior art keywords
copolymers
acrylate
meth
component
ethylenically unsaturated
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Withdrawn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
EP96944676A
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German (de)
English (en)
Inventor
Rainer Blum
Christopher Hilger
Joachim Woltering
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
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 BASF Coatings GmbH filed Critical BASF Coatings GmbH
Publication of EP0873196A1 publication Critical patent/EP0873196A1/fr
Withdrawn legal-status Critical Current

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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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • 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
    • C09D133/00—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 at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical

Definitions

  • the present invention relates to a method for coating objects with powder coatings containing polymers, which are applied to the surface of the substrate to be coated, melted and crosslinked by UV radiation.
  • Radiation-curable powder coatings are generally understood to be fine-particle powders of organic polymers which do not cake when stored (block-resistant), which are generally electrostatically chargeable, sprayed onto substrates in an electric field or applied to the substrate to be coated by other methods, for example whirl sintering .
  • the powders are melted on the substrates by heating, thereby converting them into smooth coatings and then crosslinking by means of a photochemically initiated reaction.
  • Powder coatings use both partially crosslinking and purely thermoplastic meltable coatings. For applications in which high demands are placed on weather resistance, scratch resistance, corrosion protection, elasticity and gloss retention, for example in automotive painting, only crosslinking systems are suitable; Powders sintered purely thermoplastic cannot meet these requirements.
  • thermally started reactions of the polymeric coating binders with themselves or with an added crosslinker are used almost exclusively.
  • thermally activated crosslinking reactions are the reaction of monopolymers based epoxy groups with solid dicarboxylic acid anhydrides such as phthalic anhydride (see, for example, US Pat. No. 3,919,347) or polymerized hydroxyl groups with blocked isocyanates.
  • a major problem with powder coatings is that they run poorer compared to liquid systems.
  • EP-A-346 734 From EP-A-346 734, EP-A-367 054, EP-A-377 199, EP-A-395 990, EP-A-417 564, EP-A-448 741, EP-A-458 164 and EP-A-486 897 special aromatic ketones are known which are suitable for the production of UV-crosslinkable adhesives, particularly pressure-sensitive adhesives.
  • the use of the principle for separating the melting and crosslinking process in powder coatings cannot be found in these documents.
  • DE-A-24 36 186 describes the production of UV-crosslinkable powder coatings from polymers with 0.5 to 3.5 polymerisable C-C double bonds per 1000 molar weight. These polymers are converted into powder, mixed with 0.1% to 0.5% photoinitiators, if applicable, applied to the substrates to be coated, melted and then crosslinked by the action of ionizing or UV radiation. However, hydrogen abstraction as a cross-linking principle is not mentioned here.
  • US-A-3 926 639 relates to polymeric compounds derived from benzophenone carboxylic acids as substances with built-in photoinitiators. If they contain double bonds, these are autophotopolymerizable or can also be used as polymeric photoinitiators with e.g. acrylic unsaturated substances such as pentaerythritol triacrylate can be used. However, hydrogen abstraction as a cross-linking principle and powder coatings are not mentioned here.
  • US-A-4 129 488 and US-A-4 163 810 relate to UV-crosslinkable powder coatings based on ethylenically unsaturated polymers, which may also contain photoinitiators chemically bound to the polymers, the polymers according to one special block diagram are constructed. Hydrogen abstraction is also not mentioned here as a crosslinking principle for essentially double-bond-free lacquers.
  • EP-A-286 549 describes photostructured printed circuit boards which are produced in a special process using known UV-crosslinkable lacquers.
  • UV-crosslinkable polymers epoxy resins which are polymerized cationically with UV-activatable initiators and ethylenically, preferably acrylic, unsaturated polymers which are polymerized with the UV initiators known for such systems.
  • epoxy resins which are polymerized cationically with UV-activatable initiators and ethylenically, preferably acrylic, unsaturated polymers which are polymerized with the UV initiators known for such systems.
  • ethylenically preferably acrylic, unsaturated polymers which are polymerized with the UV initiators known for such systems.
  • hydrogen abstraction as a crosslinking principle nor powder coatings based on this crosslinking principle are mentioned.
  • EP-A-0 237 312 describes ethylenically unsaturated compositions for the production of radiation-crosslinkable printed circuit boards which contain portions with dicyclopentadienyl-like structures to improve the adhesion.
  • the crosslinking takes place via the double bonds.
  • hydrogen abstraction as a cross-linking principle is not mentioned here.
  • the present invention relates to a process for coating objects with powder coatings containing polymers which are applied to the surface of the substrate to be coated, melted and crosslinked by UV radiation, which is characterized in that copolymers of polymers are used
  • the copolymers used are those which, in addition to components (a) and (b), also contain a component (c) in copolymerized form, component (c) enabling at least one copolymerizable ethylenically unsaturated, triplet-excited state for hydrogen abstraction is aromatic or partially aromatic ketone.
  • copolymers which contain, as component (b), copolymerized organic compounds of the general formulas (A), in particular copolymers which contain, as component (b), dihydrodicyclopentadienyl acrylate, dihydrodicyclopentadienyl methacrylate, dihydrodicyclopentadienyl ethacrylate or dihydrodicyclopentadpienyl cinnamate.
  • copolymers which have glass transition temperatures between 20.degree. C. and 140.degree. C., in particular those which, as component (a), at least partially contain a compound from the group of isobornyl acrylate, isobornyl methacrylate, isobornyl ethacrylate, isobornylcinnamate, adamantane acrylate, adamantane methacrylate, adamantane methacrylate and adamantane methinnate .
  • copolymers which, as component (a), have alkyl or methacrylic acid alkyl esters having 1 to 10 carbon atoms in the alkyl radical or mixtures thereof with glycidyl (meth) acrylate and / or (meth) acrylic acid, and those which are used as component ( b) in addition to compounds of the general formula (A) styrene, 4-tert-butylstyrene and / or 1-methylstyrene copolymerized.
  • Component (c) is preferably polymerized in an amount of 10 to 50% by weight, based on the total amount of components (a), (b) and (c).
  • Preferred embodiments of the process according to the invention also consist in the fact that the copolymers with or without radical-supplying polymerization initiators have been prepared by the high-temperature polymerization method in bulk or in the presence of solvents and removal of the solvent by customary methods.
  • a further embodiment of the process according to the invention is that the copolymers are polymerized in solution and the coating powders are prepared from the solutions, optionally after addition of pigments and auxiliaries, by spray drying.
  • a preferred embodiment of the process according to the invention also consists in using such copolymers which, as component (c), contain at least one copolymerizable, ethylenically unsaturated, triplet-excited state capable of hydrogen abstraction in copolymerized form which contains no phenyl group with a free hydroxyl group and which is capable of hydrogen abstraction has ortho position to the carbonyl group of the phenolic base.
  • the powder coating materials to be used according to the invention can be applied to the surface of the substrate to be coated by electrostatic spraying, fluidized bed sintering or by another method customary for processing powder coating materials, melted there by heating and, after the formation of a smooth, still liquid coating, can be crosslinked by UV radiation. Furthermore, the UV radiation can also be carried out after the previously melted coatings have been partially or completely cooled.
  • the copolymers can also be mixed with solid ethylenically unsaturated monomeric, oligomeric or polymeric substances in a mixing ratio of 90: 10 to 10:90 before they are processed into powder coatings.
  • the copolymers can also contain double bonds or, in addition to the copolymerized intrinsic UV photoinitiators of component (c), can also contain other customary UV photoinitiators and, if appropriate, additional customary UV stabilizers.
  • copolymers to be used according to the invention contain as a component
  • Suitable as component (a) are, for example, the esters of acrylic acid and methacrylic acid with aliphatic, cycloaliphatic, araliphatic and aromatic alcohols having 1 to 30, preferably 1 to 20 carbon atoms, for example methyl (meth) acrylate, ethyl (meth) acrylate , Propyl (meth) acrylate, isopropyl (meth) acrylate, n-butyl (meth) acrylate, isobutyl (meth) acrylate, tert.-butyl (meth) acrylate, amyl (meth -) acrylate, isoamyl (meth) acrylate, hexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, decyl (meth) acrylate, undecyl - (- meth) acrylate, dodecyl ( meth) acrylate, tridecyl
  • a further improvement in photosensitivity is achieved by using isobornyl acrylate, isobornyl methacrylate, isobornyl ethacrylate, isobornyl cinnamate, adamantane acrylate, adamantane methacrylate, adamantane ethacrylate and adamantane cinnamate in the various isomer forms in the monomers (a).
  • Monomers (a) which carry further functional groups in addition to the double bond can be used for an additional thermally activatable crosslinking reaction and are then present in proportions of 10 to 40% of the monomers (a). As a rule, however, they are used in minor quantities and then improve e.g. the adhesion, the electrostatic chargeability, the flow behavior of the powder and the surface smoothness.
  • Descendants of 3-phenylacrylic acid further improve the weather resistance of the paints than built-in stabilizers.
  • Component (a) in the copolymer to be used according to the invention is generally polymerized in amounts of 20 to 80, preferably 40 to 60,% by weight, based on the total amount of components (a) -f- (b) + (c).
  • Component (b) according to the invention is copolymerizable, ethylenically unsaturated organic compounds of the general formula (A)
  • component (b) are dihydrodicyclopentadienyl ethacrylate and dihydrodicyclopentadienyl cinnamate. Also of importance is the adduct of dicyclopentadiene, maleic anhydride and water, which is copolymerizable in parts with acrylic esters, and the esters of this adduct with mono- or polyfunctional alcohols.
  • Component (b) copolymerizable ethylenically unsaturated organic compounds (b) which are optionally also to be used as component (b) are, for example, free-radically polymerizable, in particular free-radical copolymerizable with component (a) monomers, such as styrene, 1-methylstyrene, 4-tert-butylstyrene , 2-chlorostyrene, vinyl esters of fatty acids with 2 to 20 carbon atoms, such as vinyl acetate, vinyl propionate, vinyl ethers of alkanols with 2 to 20 carbon atoms, such as vinyl isobutyl ether, further vinyl chloride, vinylidene chloride, vinyl alkyl ketones, dienes such as butadiene and isoprene and esters of maleic and crotonic acid.
  • component (a) monomers such as styrene, 1-methylstyrene, 4-tert-butylstyrene ,
  • Suitable monomers (b) which may also be used are also cyclic vinyl compounds such as vinylpyridine, 2-methyl-1-vinylimidazole, 1-vinylimidazole, 5-vinylpyrrolidone and N-vinylpyrrolidone.
  • allylically unsaturated monomers can be used, such as allyl alcohol, allyl alkyl esters, monoallyl phthalate and diallyl phthalate.
  • Acrolein and methacrolein and polymerizable isocyanates are also suitable.
  • Component (b) in the copolymer to be used according to the invention is generally polymerized in amounts of 5 to 80, preferably 20 to 40,% by weight, based on the total amount of components (a) + (b) + (c).
  • R 12 H, straight-chain alkyl having 1 to 15 carbon atoms, branched alkyl having 1 to 15 carbon atoms, straight-chain or branched alkyl substituted by halogen, such as Cl, F, Br, such as -C- (CF 3 ) or isopropyl,
  • R 13 alkyl having 1 to 15 carbon atoms, such as isopropyl, isobutyl or isoamyl, aryl, such as isoamylphenyl, alkyl having 1 to 15 carbon atoms substituted by halogen, such as F, Cl or Br, substituted by halogen, such as F, Cl, Br Aryl.
  • the photosensitivity of the lacquers to be produced according to the invention can also be increased.
  • Component (c) is copolymerizable, ethylenically unsaturated, aromatic and partially aromatic ketones capable of hydrogen abstraction before and / or after the polymerization in the triplet-excited state.
  • Substances with the following structural formulas are particularly suitable:
  • components (c) which are derived from benzophenone are preferred, in particular those in which the ethylenically unsaturated group is derived from the benzophenone group through a molecular spacer according to the scheme
  • Ketone group .... spacer .... ethylenically unsaturated group is separated.
  • Such particularly preferred components (c) are e.g. by the structural formulas (VIII), (XVII), (XX), (XXI), (XXII), (XXIII), (XXIV), (XXV), (XXVI), (XXVII), (XXVIII), (XXVIII), ( XXXIX), (XL), (XLII) and (XLIII).
  • Component (c) can be copolymerized in the copolymer to be used according to the invention in amounts of 5 to 80, preferably 10 to 30,% by weight, based on the total amount of components (a) + (b) + (c).
  • the monomers (a) to (c) to be combined are expediently selected so that the powder coating materials have good storage stability, ie above all block-resistant and can be applied, ie can be sprayed well electrostatically, and the coatings cured by UV light meet the requirements. These requirements can be quite different, for example, for clear top coats of metallic paintwork in automobiles, the highest yellowing and weather resistance, scratch resistance and gloss retention with high hardness are required. In the case of a coilcoat lacquer, ie a lacquer with which sheet metal webs are coated, then wound up and then further processed under deformation, maximum elasticity and adhesion are important.
  • the price of the monomers can also be a selection criterion if, for certain applications, the high quality of the coatings is not required, but a low price is required.
  • styrene and methyl methacrylate are "hard” monomers which increase the glass transition temperature and the softening point of the polymers and the hardness of the coatings, while butyl acrylate, ethylhexyl acrylate and tridecyl acrylate as "soft” monomers lower these properties but improve the elasticity .
  • minor amounts of (meth) acrylic acid or (meth) acrylamide improve the adhesion.
  • Further constituents of the monomer mixtures can aim, in addition to the crosslinking by hydrogen abstraction via the monomers (c), to also use the UV crosslinking of double bonds as a further crosslinking reaction.
  • the double bonds required for this can e.g. are introduced into the polymers by reacting polymerized (meth) acrylic acid with glycidyl methacrylate or polymerized glycidyl methacrylate with (meth) acrylic acid, or preferably polymerized hydroxyalkyl (meth) acrylates with acrylic acid anhydride or methacrylic anhydride.
  • the copolymers can also contain further customary UV photoinitiators and, if appropriate, additional customary UV stabilizers.
  • the polymers can be prepared in a known manner by free-radical polymerization in solution or in bulk initiated thermally and / or with free-radical initiators, it being possible to add regulators to control the molecular weight of the polymers.
  • a preferred embodiment of the process according to the invention also consists in that the copolymers are prepared with or without radical-providing polymerization initiators by the high-temperature polymerization method under pressure in bulk or in the presence of solvents.
  • Bulk polymerization at high temperature in continuous reactors is particularly suitable. There is no need to remove an auxiliary solvent. It is also possible to incorporate auxiliaries, pigments and other substances into the discharge device of the reactor or an extruder directly downstream to complete ready-to-use powder coatings and thus to produce ready-to-use powder coatings in one process.
  • a particularly advantageous process for the preparation of the coating powders is first to prepare the polymers in solution and, if appropriate, to pigment the solutions, to add further initiators, flow control agents and other auxiliaries and then to remove the solvent by the spray drying process.
  • the polymerization technology and the production of paint powders from the polymers is not the subject of the present invention.
  • the powder coating materials to be used according to the invention can be applied to the surface of the substrate to be coated by electrostatic spraying, fluidized bed sintering or by another method customary for processing powder coating materials, melted there by heating and, after the formation of a smooth, still liquid coating, can be crosslinked by UV radiation. Furthermore, the UV radiation can also be carried out after the previously melted coatings have been partially or completely cooled. For optimal powder formation from the powders at relatively low temperatures, it is desirable to use polymers of relatively low molecular weight and with a narrow molecular weight distribution.
  • Polymers with a number average molecular weight are well suited, from the aspect of an optimal film surface between 1000 and 20000, preferably between 1500 and 8000, in particular between 2000 and 6000.
  • Another aspect is the molecular weight distribution, ie the quotient of the number average and the weight average Molecular weight, which should be below 4 for the best course.
  • paint powders from the polymers according to the invention can be carried out according to the known prior art, such as, for example, "Powder Coatings", Chemistry and Technology, Tosko Aleksandar Misev, Verlag John Wiley and Sons, Chichester (1991) (especially pages 224-227).
  • the monomer mixtures of components (a) + (b) + (c) can aim to use the UV crosslinking of double bonds as co-crosslinking in addition to the crosslinking by hydrogen abstraction via the monomers (c).
  • the double bonds required for this can, as already mentioned above, e.g. are introduced into the polymers by reacting polymerized (meth) acrylic acid with glycidyl methacrylate or polymerized glycidyl methacrylate with (meth) acrylic acid.
  • It can also contain constituents of the monomer mixtures which are aimed at enabling, in addition to crosslinking by UV light, a thermally started co-crosslinking.
  • Suitable for this are e.g. Glycidyl methacrylate, which can react with foreign crosslinking agents such as polyfunctional carboxylic acids or carboxylic acid anhydrides, or free carboxyl groups from polymerized (meth) acrylic acid, which can be crosslinked with polyepoxy resins.
  • Thermal crosslinking via polymerized methylolation products and methylol ether of (meth) acrylamide are also suitable for thermal co-crosslinking.
  • Another aspect of the invention can also be the use of additional crosslinks via a known mechanism, not according to the invention, which is independent of the mechanism of direct hydrogen abstraction according to the invention. Both light-activated and thermally activated mechanisms can be considered.
  • the aim is to create penetrating networks that have improved paint properties.
  • the inventive copolymers can also be admixed with double-bond-bearing resins which are not according to the invention, in order to achieve co-crosslinking via double bonds.
  • Such Resins can be obtained, for example, according to US Pat. No. 4,064,161 or DE-A-24 36 186 based on polymers which contain glycidyl methacrylate and are reacted with acrylic acid.
  • lacquers according to the invention can be admixed with lacquers which are not according to the invention and which carry monopoly-polymerized epoxy groups and are crosslinkable with polycarboxylic acids.
  • component (c) As a rule, the crosslinking effect of component (c) is sufficient for good crosslinking under UV light. Due to their molecular structure, these substances are able to change into a triplet-excited state by UV absorption and to cause crosslinking by hydrogen abstraction. To optimize the UV crosslinking and to adapt to the spectrum of the available UV source, however, other customary and known UV absorbers and photoinitiators such as benzoin ethers, benzophenone compounds, benzoinphosphine oxides and thioxanthones can also be used.
  • the powder coating materials can contain customary auxiliaries according to the prior art, such as catalysts for a cover etching, flow improvers, anti-cratering agents, adhesion improvers, etc.
  • the resulting resin melt containing residual solvent was then poured into porcelain dishes lined with aluminum foil and dried in a vacuum drying cabinet at 80 ° C. for 48 hours.
  • Example 5 After the end of the polymerization, 50 g of benzophenone were added on cooling and dissolved in the polymer solution with stirring. Further processing to a powder was carried out as in Example 1.
  • Example 5 After the end of the polymerization, 50 g of benzophenone were added on cooling and dissolved in the polymer solution with stirring. Further processing to a powder was carried out as in Example 1.
  • Example 5 Example 5
  • the powders are clearly soluble in isopropanol and acetone, i.e. not networked.
  • the powders were applied to a test sheet using a doctor blade with a gap width of 200 ⁇ m. This gives a loose, even powder layer on the sheet.
  • the metal sheets were then placed on a hot table that was preheated to 140 ° C. After 3 minutes the powders had melted into a smooth, uniform resin layer. With a small spatula, these melts could be stirred as viscous liquids.
  • the heating table was then pushed under a medium pressure mercury lamp with broadband UV light. After the exposure, the sample plates were removed from the hot table and allowed to cool. The resulting lacquer layers then have a layer thickness of approx. 70 ⁇ m. After cooling, cotton balls were placed on the exposed areas and those covered during the exposure for 5 minutes to test the acetone strength.
  • the exposure energy (mJ / cm 2 ) at which the resins in the exposed area were no longer attacked by the acetone was determined in series experiments; a maximum of 10,000 mJ / cm 2 was exposed.
  • Example 1 shows the double bond-free crosslinking via component (b) in conjunction with a polymerized benzophenone compound (c) capable of hydrogen abstraction in the triplet-excited state.
  • Examples 2 and 3 show the increase in photosensitivity through the use of substances such as isobornyl (meth) acrylate.
  • Example 4 shows the double bond-free crosslinking via component (b) in conjunction with an added photoinitiator (benzophenone).
  • Example 5 shows the increase in photosensitivity compared to Example 4 through the use of substances such as isobornyl (meth) acrylate.
  • the comparative examples correspond to the prior art known from the European patents cited. They show that without component (b) a sufficiently good UV crosslinking for powder coatings cannot be achieved, even when using exposure energy that is no longer technically sensible.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Paints Or Removers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un procédé de mise en peinture d'objets au moyen de peintures en poudre contenant des polymères, qui sont appliquées sur la surface du substrat à revêtir, fondues et réticulées par rayonnement UV. Les polymères utilisés sont des copolymères comprenant (a) au moins un monomère de formule générale (I) CH2=C(R?1)-CO-OR2¿, dans laquelle R1 représente H ou CH¿3 et R?2 représente H, C¿n?H2n+1, n étant compris entre 1 et 30, un radical alicyclique, araliphatique ou hétérocyclique, un radical hydroxyalkyle, alcoxyalkyle, glycidyle ou aminoalkyle; ou de formule générale (II) CH2=C(R?1)-CO-NR3R4¿, dans laquelle R1 représente H ou CH¿3?, R?3 et R4¿ peuvent être identiques ou différents et représentent H, CH¿2?OH, CnH2n+1, n étant compris entre 1 et 30, ou CH2OR?5, R5¿ représentant C¿m?H2m+1, m étant compris entre 1 et 12; et b) au moins un composé organique copolymérisable, éthyléniquement insaturé, de formule générale (A), dans laquelle R' et R'' peuvent être identiques ou différents et représentent H, CpH2p+1, p étant compris entre 1 et 6, cycloalkyle, aryle ou aralkyle et R''' représente un radical acryloyle, méthacryloyle, éthacryloyle ou cinnamoyle, ce composé pouvant être remplacé partiellement par un ou plusieurs autres composés organiques copolymérisables, éthyléniquement insaturés, différents de (a).
EP96944676A 1996-01-04 1996-12-30 Procede de mise en peinture d'objets au moyen de peintures en poudre durcissant aux rayonnements Withdrawn EP0873196A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19600147 1996-01-04
DE19600147A DE19600147A1 (de) 1996-01-04 1996-01-04 Verfahren zur Lackierung von Gegenständen unter Verwendung strahlungshärtbarer Pulverlacke
PCT/EP1996/005864 WO1997025157A1 (fr) 1996-01-04 1996-12-30 Procede de mise en peinture d'objets au moyen de peintures en poudre durcissant aux rayonnements

Publications (1)

Publication Number Publication Date
EP0873196A1 true EP0873196A1 (fr) 1998-10-28

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EP96944676A Withdrawn EP0873196A1 (fr) 1996-01-04 1996-12-30 Procede de mise en peinture d'objets au moyen de peintures en poudre durcissant aux rayonnements

Country Status (8)

Country Link
US (1) US6106905A (fr)
EP (1) EP0873196A1 (fr)
JP (1) JP2000503057A (fr)
KR (1) KR19990077018A (fr)
CN (1) CN1209084A (fr)
CA (1) CA2241798A1 (fr)
DE (1) DE19600147A1 (fr)
WO (1) WO1997025157A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
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DE19600147A1 (de) * 1996-01-04 1997-07-10 Basf Lacke & Farben Verfahren zur Lackierung von Gegenständen unter Verwendung strahlungshärtbarer Pulverlacke
DE19835206A1 (de) * 1998-08-04 2000-02-17 Basf Coatings Ag Wäßrige Pulverklarlack-Dispersion
DE19835917A1 (de) 1998-08-07 2000-02-10 Basf Ag Mit energischer Strahlung und/oder thermisch härtbare Bindemittel
DE19835849A1 (de) * 1998-08-07 2000-02-10 Basf Coatings Ag Mit energiereicher Strahlung und/oder thermisch härtbare Pulverlacke mit funktionalisierter Grundstruktur
DE19908018A1 (de) 1999-02-25 2000-08-31 Basf Coatings Ag Thermisch und mit aktinischer Strahlung härtbare Pulverslurry, Verfahren zu ihrer Herstellung und ihre Verwendung
DE19961402A1 (de) * 1999-12-20 2001-07-05 Basf Coatings Ag Verfahren zur Herstellung von Beschichtungen aus thermisch und mit aktinischer Strahlung härtbaren Beschichtungstoffen
DE10012580A1 (de) * 2000-03-15 2001-09-27 Basf Coatings Ag Verfahren zur Herstellung von Beschichtungen, Klebschichten und Dichtungen aus mit aktinischer Strahlung härtbaren Beschichtungsstoffen, Klebstoffen und Dichtungsmassen
US6541537B1 (en) 2001-01-19 2003-04-01 Renaissance Technology Llc Acrylate polymeric compositions and methods
US20060088674A1 (en) * 2004-10-27 2006-04-27 Hladik Molly L Ultraviolet curable barrier layers
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DE19600147A1 (de) 1997-07-10
KR19990077018A (ko) 1999-10-25
WO1997025157A1 (fr) 1997-07-17
US6106905A (en) 2000-08-22
CA2241798A1 (fr) 1997-07-17
JP2000503057A (ja) 2000-03-14
CN1209084A (zh) 1999-02-24

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