EP1152841B1 - Verfahren zur mehrschichtlackierung - Google Patents
Verfahren zur mehrschichtlackierung Download PDFInfo
- Publication number
- EP1152841B1 EP1152841B1 EP99962155A EP99962155A EP1152841B1 EP 1152841 B1 EP1152841 B1 EP 1152841B1 EP 99962155 A EP99962155 A EP 99962155A EP 99962155 A EP99962155 A EP 99962155A EP 1152841 B1 EP1152841 B1 EP 1152841B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- radiation
- irradiation
- energy radiation
- coat
- hardened
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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- 229910052724 xenon Inorganic materials 0.000 description 2
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- 239000004593 Epoxy Substances 0.000 description 1
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- 229940072049 amyl acetate Drugs 0.000 description 1
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- 230000001681 protective effect Effects 0.000 description 1
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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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/57—Three layers or more the last layer being a clear coat
- B05D7/574—Three layers or more the last layer being a clear coat at least some layers being let to dry at least partially before applying the next layer
-
- 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
- B05D3/02—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 baking
- B05D3/0209—Multistage baking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/57—Three layers or more the last layer being a clear coat
- B05D7/577—Three layers or more the last layer being a clear coat some layers being coated "wet-on-wet", the others not
-
- 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
- B05D3/02—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 baking
- B05D3/0254—After-treatment
- B05D3/0263—After-treatment with IR heaters
-
- 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.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/544—No clear coat specified the first layer is let to dry at least partially before applying the second layer
Definitions
- the invention relates to a method for multi-layer coating of substrates Use of radiation-curable coating agents.
- the method can be advantageous They are used in vehicle and industrial painting, preferably in the Vehicle refinishing.
- UV technology in the coating and curing is particularly in the Wood coating industry has been state of the art for a long time. But also in others Areas of application, including vehicle painting, have become known to use coating compositions curable by means of high-energy radiation. You use here too the advantages of radiation-curable coating agents, e.g. the very short Curing times, the low solvent emissions of the coating agents as well as the very good hardness of the coatings obtained therefrom.
- DE-A-196 35 447 describes a process for producing a multilayer refinishing, using as a clear coat or pigmented top coat Coating agent is applied, which is free radical only by UV radiation contains polymerizable binders.
- the UV radiation of the applied Coating agent is done with UV flash lamps.
- EP-A-0 540 884 describes a method for producing a Multi-layer painting for automotive serial painting by application of a Clear coat on a dried or hardened basecoat, the Clear coat coating agent by radical polymerization curable binders contains and the curing of the clear coat is carried out by means of UV radiation.
- the clear coat is applied when illuminated with light with a wavelength of over 550 nm or in the absence of light.
- Coating agents curable by means of high-energy radiation which contain binders by means of high-energy radiation and additionally can cure via another crosslinking mechanism.
- EP-A-0 000 407 describes curable materials using high-energy radiation Coating agent based on an OH-functional esterified with acrylic acid Polyester resin, a vinyl compound and a polyisocyanate.
- the curing step is followed by irradiation with UV light and a second curing step the final curing takes place at temperatures from 130 to 200 ° C.
- the object of the invention was therefore to provide a method for multilayer Vehicle painting, especially for multi-layer vehicle refinishing, using at least partially radiation-curable coating agents to provide with which coatings are obtained which are free of Cracking and good adhesion to the surface.
- the received Coatings are said to have very good chemical and weather resistance as well have good sandability. They should also have a high crosslink density Show sufficient flexibility.
- the coatings are also said to be flawless show visual appearance.
- the object is achieved by the method forming an object of the invention for multi-layer painting by applying one or more filler layers and / or further layers, which are, for example, customary intermediate layers can act on a possibly pre-coated substrate, and subsequent Apply a top coat layer from a basecoat / clearcoat structure or from a pigmented one-coat topcoat, with at least one of the layers of the Multi-layer construction from at least partially by means of high-energy radiation curable coating agent is created, which is characterized in that after Application of the or the at least partially curable by means of high-energy radiation Coating agent (s) first irradiation with infrared radiation (IR radiation) and then irradiation with high-energy radiation, preferably ultraviolet radiation (UV radiation), the irradiation with IR radiation subsequent irradiation with high-energy radiation at least partially overlap can.
- IR radiation infrared radiation
- UV radiation ultraviolet radiation
- UV radiation but also, for example, can be used as high-energy radiation
- Electron radiation can be used.
- partially curable coating agent granted a flash-off phase. It can for example by venting for 5 to 15 minutes, preferably 5 to 10 minutes Act at room temperature. Irradiation is only then carried out.
- At least partially curable coating compositions can be aqueous, with solvents be diluted or free of solvents and water. It can be means high-energy radiation, preferably by means of UV radiation, completely or only partially curable coating agents act: With by means of high-energy radiation curable coating compositions are in particular the person skilled in the art known cationically and / or free-radically curing coating compositions. Are preferred radical curing coating agents. When exposed to high-energy radiation These coating agents create radicals in the coating agent that crosslink by radical polymerization of olefinic double bonds.
- the radically curing coating compositions which can preferably be used contain conventional ones Prepolymers, such as poly- or oligomers, the free-radically polymerizable olefinic Double bonds, especially in the form of (meth) acryloyl groups in the molecule exhibit.
- the prepolymers can be used in combination with conventional reactive diluents, i.e. reactive liquid monomers.
- prepolymers or oligomers are (meth) acrylic functional (Meth) acrylic copolymers, epoxy resin (meth) acrylates, polyester (meth) acrylates, Polyether (meth) acrylates, polyurethane (meth) acrylates, unsaturated polyesters, unsaturated Polyurethanes or silicone (meth) acrylates with number average molecular masses (Mn) preferably in the range from 200 to 10,000, particularly preferably from 500 to 3000 and with on average 2 to 20, preferably 3 to 10 free-radically polymerizable, olefinic Double bonds per molecule.
- Mn number average molecular masses
- reactive diluents are used, for example, in amounts from 1 to 50 wt .-%, preferably from 5 to 30 wt .-%, based on the total weight of Prepolymers and reactive diluents. It is low molecular weight defined compounds that can be mono-, di- or polyunsaturated.
- reactive diluents examples include: (meth) acrylic acid and its esters, maleic acid and their Half esters, vinyl acetate, vinyl ethers, substituted vinyl ureas, ethylene and Propylene glycol di (meth) acrylate, 1,3- and 1,4-butanediol di (meth) acrylate, vinyl (meth) acrylate, Allyl (meth) acrylate, glycerol tri, di and mono (meth) acrylate, trimethylolpropane tri, di and mono (meth) acrylate, styrene, vinyl toluene, divinylbenzene, pentaerythritol tri- and - tetra (meth) acrylate, di- and tripropylene glycol di (meth) acrylate, hexanediol di (meth) acrylate.
- the reactive diluents can be used individually or in a mixture.
- the free radical curing coating compositions contain photoinitiators, e.g. in quantities from 0.1 to 5% by weight, preferably from 0.5 to 3% by weight, based on the sum of radical polymerizable prepolymers, reactive diluents and photoinitiators.
- photoinitiators such as benzoin and derivatives
- Acetophenone and derivatives e.g. 2,2-diacetoxyacetophenone, benzophenone and derivatives, Thioxanthone and derivatives, anthraquinone, 1-benzoylcyclohexanol, organophosphorus Connections such as Acyl phosphine oxides.
- the photoinitiators can be used alone or in Combination can be used.
- other synergistic components e.g. tertiary amines can be used.
- At least partially curable coating compositions preferably contain in addition to the agent high-energy radiation-curable binder system one or more others Binder.
- the other binders which may also be present, are are preferably conventional by means of addition and / or condensation reactions curable binder systems. But it can also be usual physically drying binder systems or combinations of both Act binder systems. It is also possible that this is by means of high energy Radiation curable binder system in addition to the radically polymerizable Double bonds for crosslinking through addition and / or condensation reactions capable groups.
- lacquer crosslinking reactions such as for example the ring-opening addition of an epoxy group to a carboxyl group to form an ester and a hydroxyl group, the addition of a hydroxyl group to an isocyanate group to form a urethane group, the reaction of a Hydroxyl group with a blocked isocyanate group to form a Urethane group and cleavage of the blocking agent, the reaction of a Hydroxyl group with an N-methylol group with elimination of water, the reaction of a Hydroxyl group with an N-methylol ether group with elimination of the Etherification alcohol, the transesterification reaction of a hydroxyl group with a Ester group with elimination of the esterification alcohol, the umurethanization reaction a hydroxyl group with a carbamate group with elimination of alcohol, the reaction a carbamate group with an N-methylol ether group with elimination of the Etherification alcohol.
- the binder system preferably contains functional groups which form a crosslink at low temperatures, for example at 20 to 80 ° C. Especially it can preferably be hydroxyl and isocyanate groups.
- the functional Groups, especially the hydroxyl groups and isocyanate groups, can each in the binder curable by means of high-energy radiation and / or in a separate one Binders are present.
- basecoat or one-coat topcoat Polyurethane (meth) acrylates, polyester (meth) acrylates and / or (meth) acryloyl functional ones Poly (meth) acrylates and in the filler or other layers, such as intermediate layers, epoxy (meth) acrylates are preferably used. Particularly good results will be obtained when using the (meth) acryloyl-functional binders mentioned above Binders are combined based on a cross-linking mechanism between Hydroxyl and isocyanate groups are based. The hydroxyl and / or isocyanate groups can also be present in the (meth) acryloyl-functional binder (s) his.
- binder systems which are (meth) acryloyl and OH functional Contain components and polyisocyanates
- the (meth) acryloyl and OH groups can be contained in one and / or different binder components can, and also binder systems containing A) one or more radical compounds having polymerizable double bonds, which additionally have at least another reactive in the sense of an addition and / or condensation reaction contain functional group and B) one or more radical polymerizable Compounds having double bonds, which additionally have at least one further im Functional group reactive in terms of an addition and / or condensation reaction included, the additional reactive functional group being complementary or reactive towards the additional reactive functional groups of component A).
- one or more monomeric, oligomeric can also be used in the latter case and / or polymeric compound with at least one in addition to the radical polymerizable double bonds existing functional groups Component A) or component B) in the sense of an addition and / or Condensation reaction reactive functional group may be included.
- At least partially curable coating agents can be additional, for which Lacquer formulation contain common components.
- the additives are the usual ones in the paint sector usable additives. Examples of such additives are leveling agents, anti-cratering agents, Anti-foaming agents, catalysts, adhesion promoters, rheology-influencing additives, Thickeners, light stabilizers and emulsifiers.
- the additives are used in the usual way Amounts familiar to those skilled in the art are used.
- the coating compositions which can be used in the process according to the invention can contain fractions of contain organic solvents and / or water.
- the solvents are around common paint solvents. These can come from the manufacture of the binders originate or are added separately. Examples of such solvents are one or polyhydric alcohols, e.g. Propanol, butanol, hexanol; Glycol ethers or esters, e.g. Diethylene glycol dialkyl ether, dipropylene glycol dialkyl ether, each with C1 to C6 alkyl, Ethoxypropanol, butyl glycol; Glycols, e.g. Ethylene glycol, propylene glycol and their Oligomers, esters, e.g.
- Ketones e.g. Methyl ethyl ketone, acetone, cyclohexanone
- aromatic or aliphatic Hydrocarbons e.g. Toluene, xylene or linear or branched aliphatic C6-C12 hydrocarbons.
- the coating compositions which can be used in the process according to the invention can be pigments and / or fillers. These are the usual ones in the paint industry usable fillers and organic or inorganic color and / or effect pigments and anti-corrosion pigments.
- inorganic or organic color pigments are titanium dioxide, micronized titanium dioxide, iron oxide pigments, Carbon black, azo pigments, phthalocyanine pigments, quinacridone and pyrrolopyrrole pigments.
- effect pigments are: metal pigments, e.g. made of aluminum, copper or other metals; Interference pigments, e.g. metal oxide coated metal pigments, e.g. Titanium dioxide coated or mixed oxide coated aluminum, coated Mica, e.g.
- fillers titanium dioxide coated mica and graphite effect pigments.
- fillers are silicon dioxide, aluminum silicate, barium sulfate and talc.
- Coating agents can advantageously be special in addition to the usual additives coated fillers to increase scratch resistance.
- fillers come here e.g. micronized alumina or micronized silicon oxides Question.
- These fillers are coated with compounds, the W-curable groups included, e.g. with acrylic functional silanes, and are thus used in radiation curing of the coating agent included.
- Such particularly suitable for clear coats transparent fillers are available as commercial products, e.g. under the name AKTISIL®, available.
- the general composition of the coating compositions that can be used depends on which layer of the multilayer structure the respective coating agent is to be created, d. H. whether it is, for example a clear coat, a basecoat or a filler, or another common one Intermediate layer acts.
- the coating compositions can be applied in the process according to the invention different substrates are made.
- Preferred substrates are metal or Plastic substrates.
- the application in the multilayer structure is carried out according to the usual Process, preferably by spray application.
- the substrates can be pre-coated, for example, be provided with a conventional primer layer.
- IR radiation After application of the or the at least partially by means of high-energy radiation curable coating agent is irradiated with IR radiation.
- IR radiation can IR emitters known to those skilled in the art and customary for paint drying can be used.
- the IR radiator is placed in front of the substrate surface to be irradiated, for example in a Distance from 20 to 70 cm.
- the radiation duration with IR radiation can for example 1 to 20 minutes.
- the power of the radiation source can have temperatures of for example, 40 to 200 ° C can be reached. Conveniently, the settings should be like this be made that temperatures of, for example, from 40 to 100 ° C at the Substrate surface can be reached.
- Particularly good results are achieved if after the application is not directly irradiated with IR radiation, but rather one Flash-off phase follows. For example, it can be vented for 5 to 15 minutes, act preferably 5 to 10 minutes at room temperature.
- the irradiation can be carried out with high-energy radiation, preferably with UV radiation.
- UV radiation curable coating can preferably with UV radiation sources Emissions in the wavelength range from 180 to 420 nm, in particular from 200 to 400 nm.
- Examples of usable UV radiation sources are e.g. pressure mercury, medium pressure and low pressure lamps.
- the lamp length can vary. Are in use for example lamps between 5 and 200 cm lamp length. Depending on special application and the required radiation energy, lamp and reflector geometry can be coordinated with one another in the usual way.
- the respective Lamp power can be, for example, between 20 and 250 W / cm (watts per cm Lamp length) vary. Lamps with powers between 80 and 120 are preferred W / cm used.
- the mercury lamps by introducing Metal halides can also be doped. Examples of doped emitters are iron or Galliumquecksilberlampen.
- UV radiation sources are gas discharge tubes, e.g. Xenon low-pressure lamps, UV lasers, UV spot lamps, such as UV-emitting Diodes and black light tubes.
- discontinuous UV radiation sources can also be used become.
- high-energy flash devices short: UV flash lamps.
- the W-Blitzlarnpen can use a number of flash tubes, for example, contain quartz tubes filled with inert gas, such as xenon.
- the UV flash lamps have, for example, an illuminance of at least 10 megalux, preferably from 10 to 80 megalux per flash discharge.
- the energy per flash discharge can be, for example, 1 to 10 kJoules.
- the UV radiation sources are generally integrated into a UV system usually from the UV radiation sources, the reflector system, the Power supply, electrical controls, the shield, the cooling system and the There is ozone suction. Other arrangements are of course possible as well some of the components mentioned can be omitted.
- the exposure time with UV radiation can be when using UV flash lamps as a UV radiation source for example in the range from 1 millisecond to 400 seconds, preferably from 4 to 160 seconds, depending on the number of selected lightning discharges, lie.
- the flashes can be triggered, for example, every 4 seconds.
- the Hardening can occur, for example, from 1 to 40 successive lightning discharges respectively.
- the duration of the radiation can be for example in the range from a few seconds to about 5 minutes, preferably less than 5 Minutes.
- the distance between the UV radiation sources and the substrate surface to be irradiated can for example 5 to 60 cm.
- the shielding of the UV radiation sources Avoiding radiation leakage can e.g. by using an accordingly lined protective housing around a portable lamp unit or with the help other security measures known to those skilled in the art.
- the inventive method for multi-layer painting which thereby is characterized in that after application of or by means of high-energy radiation at least partially curable coating agent (s) is first irradiated with IR radiation and then irradiation with high-energy radiation can take place in various embodiments can be carried out.
- the UV irradiation phase it is possible to match the UV irradiation phase to the completed IR irradiation phase connect or the UV radiation with continuous IR radiation to start.
- IR and UV irradiation phases partially or completely overlap, i.e. the IR irradiation phase can be before or at the same time be completed at the end of the UV irradiation phase.
- IR radiation phase can for example 0.5 to 30 minutes. Otherwise, the above apply made statements regarding IR radiation.
- subsequent IR radiation phase can be IR, UV and IR irradiation are carried out in succession or the IR irradiation phase extends over the entire irradiation time, i.e. the IR radiation is before performed during and also after the UV radiation phase.
- the irradiation phases IR radiation and subsequent UV radiation can each can also be repeated several times if necessary.
- the irradiation time per Irradiation interval and the total irradiation time can be varied.
- first intermediate curing with IR radiation and a subsequent UV irradiation take place, subsequently the Coating agent applied in one or more further coats and it there is again first IR and then UV radiation.
- the method of operation is, for example, in the application of thicker layers, e.g. to 400 ⁇ m, desired filler layers are particularly advantageous.
- the multi-layer structure it is also possible, at least in part, in the multi-layer structure to apply radiation-curable basecoat and first an IR and then one Subject to UV radiation. Thereafter, an at least partially radiation-curable Clear varnish applied and again first IR and then UV radiation be subjected. If necessary, further IR radiation can occur in both cases connect to the UV radiation.
- the radiation curing of the individual Layers of the multi-layer structure as well as those applied by means of several spray coats Layers can each have different radiation intensities and different irradiation times for each layer individually or for two or more Layers are done together.
- the IR and UV radiation source in one Device includes.
- IR and UV lamps in the Device alternately arranged side by side.
- one or more can be at least partially Layers of a conventional multilayer structure that can be hardened by means of high-energy radiation be hardened in the vehicle paintwork.
- This can be, for example Multi-layer construction from primer, filler, basecoat and clearcoat or from Act primer, filler and one-coat top coat.
- One or more can be used Layers of the multilayer structure made of at least partially radiation-curable Coating agents are created.
- coatings free of cracks are formed with very good adhesion to the substrate and very good interlayer adhesion.
- the applied coatings show sufficient stability and after hardening a perfect visual appearance. Chemical and weather resistance are very good.
- the coatings obtained show at the same time with high crosslinking density sufficient flexibility. Created with the inventive method Filler coatings are very easy to sand.
- a Filler layer (binder base: 2-component polyurethane, solvent-based) in one resulting dry film layer thickness of about 80 microns applied and after a short Flash-off time hardened at room temperature for 30 minutes at 60 ° C.
- a water-based lacquer (produced in accordance with DE-A-196 43 802, production example 4) in a resulting dry film layer thickness of 13 to 15 ⁇ m applied. After a flash-off phase of 20 minutes at room temperature, the UV-curable clearcoat produced as described above in one resulting dry film layer thickness of 40-50 microns applied.
- IR radiation was carried out of the applied clear coat.
- the irradiation time was 5 minutes.
- UV radiation with a UV flash lamp (power 3500 Ws).
- the radiation was carried out with 30 flashes, which were triggered at intervals of about 4 s, at one Object distance of approx. 20 cm.
- Example 2 The procedure was analogous to Example 1, with the difference that after application of the Clear varnish after a flash-off phase of 30 minutes at room temperature directly the UV radiation with a UV flash lamp (power 3500 Ws). The UV radiation took place with 30 flashes, which were triggered at intervals of approx. 4 s, at one Object distance of approx. 20 cm.
- Example 2 Comp. 1 Humidity / heat test 1.1 1.1 1.3 liability 0-1 1 1-2 liability after wet / warm test 2 2-3 3 optics I.O. I.O. light microstructure
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Description
| Beispiel 1 | Beispiel 2 | Vgl.-Bsp. 1 | |
| Feucht/Warm-Test | 1/1 | 1/1 | 1/3 |
| Haftung | 0-1 | 1 | 1-2 |
| Haftung nach Feucht/Warm-Test | 2 | 2-3 | 3 |
| Optik | i.O. | i.O. | leichte Mikrostruktur |
Claims (9)
- Verfahren zur Mehrschichtlackierung durch Auftrag einer oder mehrerer Füller- und/oder weiterer Überzugsmittelschichten auf ein gegebenenfalls vorbeschichtetes Substrat und anschließend einer Decklackschicht aus einem Basislack/Klarlackaufbau oder aus einem pigmentierten Einschichtdecklack, wobei mindestens eine der Schichten des Mehrschichtaufbaus aus einem mittels energiereicher Strahlung zumindest teilweise härtbaren Beschichtungsmittel erstellt wird, dadurch gekennzeichnet, daß nach Applikation des oder der mittels energiereicher Strahlung zumindest teilweise härtbaren Beschichtungsmittel(s) zunächst eine Bestrahlung mit IR-Strahlung und anschließend eine Bestrahlung mit energiereicher Strahlung erfolgt, wobei die Bestrahlung mit IR-Strahlung die anschließende Bestrahlung mit energiereicher Strahlung zumindest teilweise überlappen kann.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß nach Applikation der mittels energiereicher Strahlung zumindest teilweise härtbaren Beschichtungsmittel eine Ablüftphase bei Raumtemperatur durchgeführt wird, worauf die Bestrahlung mit der IR-Strahlung erfolgt.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß als zumindest teilweise durch energiereiche Strahlung härtbare Schicht eine Füllerschicht, eine pigmentierte Decklackschicht, eine Basislackschicht und/oder eine Klarlackschicht appliziert wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die mittels energiereicher Strahlung härtbaren Beschichtungsmittel zusätzlich mittels Additions- und/oder Kondensationsreaktionen aushärtbare Bindemittelsysteme enthalten.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß es sich bei den zusätzlich enthaltenen Bindemittelsystemen um solche auf der Basis von OH-funktionellen und NCO-funktionellen Bindemittelkomponenten handelt.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die durch energiereiche Strahlung härtbaren Beschichtungsmittel (meth)acryloylfunktionelle Bindemittel enthalten, die zusätzlich reaktive funktionelle Gruppen aufweisen.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß es sich bei den zusätzlichen funktionellen Gruppen um OH- und/oder NCO-Gruppen handelt.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß anschließend an die Bestrahlung mit. energiereicher Strahlung noch eine IR-Bestrahlung durchgeführt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß es zur Reparaturlackierung, insbesondere von Fahrzeugen durchgeführt wird.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19857941 | 1998-12-16 | ||
| DE19857941A DE19857941C2 (de) | 1998-12-16 | 1998-12-16 | Verfahren zur Mehrschichtlackierung |
| PCT/EP1999/009064 WO2000035598A1 (de) | 1998-12-16 | 1999-11-24 | Verfahren zur mehrschichtlackierung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1152841A1 EP1152841A1 (de) | 2001-11-14 |
| EP1152841B1 true EP1152841B1 (de) | 2002-06-19 |
| EP1152841B2 EP1152841B2 (de) | 2008-02-13 |
Family
ID=7891216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99962155A Expired - Lifetime EP1152841B2 (de) | 1998-12-16 | 1999-11-24 | Verfahren zur mehrschichtlackierung |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1152841B2 (de) |
| JP (1) | JP2002532234A (de) |
| AT (1) | ATE219392T1 (de) |
| CA (1) | CA2347868C (de) |
| DE (2) | DE19857941C2 (de) |
| DK (1) | DK1152841T3 (de) |
| ES (1) | ES2176040T5 (de) |
| PT (1) | PT1152841E (de) |
| WO (1) | WO2000035598A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19857940C1 (de) | 1998-12-16 | 2000-07-27 | Herberts Gmbh | Verfahren zur Mehrschichtlackierung mit strahlenhärtbaren Beschichtungsmitteln |
| DE10100170A1 (de) * | 2001-01-04 | 2002-07-11 | Basf Ag | Beschichtungsmittel |
| JP5133481B2 (ja) * | 2001-09-25 | 2013-01-30 | 関西ペイント株式会社 | 補修塗装方法 |
| WO2009086034A1 (en) | 2007-12-20 | 2009-07-09 | E. I. Du Pont De Nemours And Company | Process for producing a multilayer coating |
| CA2761159A1 (en) | 2009-06-12 | 2010-12-16 | E. I. Dupont De Nemours And Company | Process for multilayer coating |
| JP6540178B2 (ja) * | 2015-04-13 | 2019-07-10 | コニカミノルタ株式会社 | 電子写真感光体の製造方法 |
| PL233241B1 (pl) * | 2017-09-06 | 2019-09-30 | Politech Spolka Z Ograniczona Odpowiedzialnoscia | Sposób zdobienia elementów opakowań kosmetycznych z tworzyw sztucznych |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE851916C (de) * | 1943-06-22 | 1952-10-09 | Patra Patent Treuhand | Verfahren zum Trocknen von Lackueberzuegen aus kondensierenden und polymerisierenden Kunststoffen |
| NL7702518A (nl) * | 1977-03-09 | 1978-09-12 | Akzo Nv | Werkwijze voor het bekleden van een substraat met een stralingshardbare bekledingskompositie. |
| NL7707669A (nl) * | 1977-07-08 | 1979-01-10 | Akzo Nv | Werkwijze voor het bekleden van een substraat met een stralingshardbare bekledingscompositie. |
| US4393187A (en) † | 1982-06-23 | 1983-07-12 | Congoleum Corporation | Stain resistant, abrasion resistant polyurethane coating composition, substrate coated therewith and production thereof |
| DE4122743C1 (de) * | 1991-07-10 | 1992-11-26 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De | |
| DE4133290A1 (de) * | 1991-10-08 | 1993-04-15 | Herberts Gmbh | Verfahren zur herstellung von mehrschichtlackierungen unter verwendung von radikalisch und/oder kationisch polymerisierbaren klarlacken |
| DE4421558C2 (de) * | 1994-06-20 | 2000-02-03 | Maximilian Zaher | Verfahren zum Beschichten von Metallsubstraten und nach dem Verfahren beschichtete Metallerzeugnisse |
| DE19533858B4 (de) * | 1995-09-13 | 2005-09-22 | IHD Institut für Holztechnologie Dresden gGmbH | Verfahren zum elektrostatischen Beschichten von Holz und Holzwerkstoffen |
| DE19818735A1 (de) * | 1998-04-27 | 1999-10-28 | Herberts Gmbh | Strahlungshärtbare Beschichtungsmittel und deren Verwendung |
-
1998
- 1998-12-16 DE DE19857941A patent/DE19857941C2/de not_active Expired - Lifetime
-
1999
- 1999-11-24 CA CA002347868A patent/CA2347868C/en not_active Expired - Fee Related
- 1999-11-24 AT AT99962155T patent/ATE219392T1/de active
- 1999-11-24 JP JP2000587898A patent/JP2002532234A/ja active Pending
- 1999-11-24 ES ES99962155T patent/ES2176040T5/es not_active Expired - Lifetime
- 1999-11-24 WO PCT/EP1999/009064 patent/WO2000035598A1/de not_active Ceased
- 1999-11-24 DK DK99962155T patent/DK1152841T3/da active
- 1999-11-24 EP EP99962155A patent/EP1152841B2/de not_active Expired - Lifetime
- 1999-11-24 PT PT99962155T patent/PT1152841E/pt unknown
- 1999-11-24 DE DE59901829T patent/DE59901829D1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002532234A (ja) | 2002-10-02 |
| ES2176040T3 (es) | 2002-11-16 |
| CA2347868C (en) | 2009-07-14 |
| CA2347868A1 (en) | 2000-06-22 |
| DK1152841T3 (da) | 2002-07-29 |
| PT1152841E (pt) | 2002-11-29 |
| ATE219392T1 (de) | 2002-07-15 |
| DE59901829D1 (de) | 2002-07-25 |
| DE19857941A1 (de) | 2000-06-21 |
| EP1152841A1 (de) | 2001-11-14 |
| EP1152841B2 (de) | 2008-02-13 |
| ES2176040T5 (es) | 2008-07-01 |
| DE19857941C2 (de) | 2002-08-29 |
| WO2000035598A1 (de) | 2000-06-22 |
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