EP0952894B1 - Verfahren zur mehrschichtlackierung - Google Patents
Verfahren zur mehrschichtlackierung Download PDFInfo
- Publication number
- EP0952894B1 EP0952894B1 EP97950199A EP97950199A EP0952894B1 EP 0952894 B1 EP0952894 B1 EP 0952894B1 EP 97950199 A EP97950199 A EP 97950199A EP 97950199 A EP97950199 A EP 97950199A EP 0952894 B1 EP0952894 B1 EP 0952894B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- coating
- lacquer
- primer
- coil
- 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
- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000010422 painting Methods 0.000 title description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 79
- 238000000576 coating method Methods 0.000 claims abstract description 51
- 229910052751 metal Inorganic materials 0.000 claims abstract description 40
- 239000002184 metal Substances 0.000 claims abstract description 40
- 239000010410 layer Substances 0.000 claims description 190
- 239000011247 coating layer Substances 0.000 claims description 74
- 239000004922 lacquer Substances 0.000 claims description 56
- 238000001652 electrophoretic deposition Methods 0.000 claims description 12
- 239000008199 coating composition Substances 0.000 claims description 11
- 239000000470 constituent Substances 0.000 claims description 8
- 238000003618 dip coating Methods 0.000 claims description 2
- 230000003746 surface roughness Effects 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 1
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- 238000004519 manufacturing process Methods 0.000 abstract description 19
- 239000003973 paint Substances 0.000 abstract description 16
- 238000010276 construction Methods 0.000 abstract description 9
- 238000004040 coloring Methods 0.000 abstract 1
- 230000037452 priming Effects 0.000 abstract 1
- 239000002987 primer (paints) Substances 0.000 description 56
- 229920005989 resin Polymers 0.000 description 32
- 239000011347 resin Substances 0.000 description 32
- 239000000049 pigment Substances 0.000 description 30
- 239000011230 binding agent Substances 0.000 description 24
- 239000004971 Cross linker Substances 0.000 description 22
- 239000003795 chemical substances by application Substances 0.000 description 20
- 239000000945 filler Substances 0.000 description 12
- 238000004132 cross linking Methods 0.000 description 10
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- 239000000654 additive Substances 0.000 description 8
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- 239000000758 substrate Substances 0.000 description 8
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- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 125000000129 anionic group Chemical group 0.000 description 5
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- 238000001035 drying Methods 0.000 description 5
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- 239000007788 liquid Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 4
- 125000002091 cationic group Chemical group 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 125000003010 ionic group Chemical group 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 3
- 229920006243 acrylic copolymer Polymers 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000004070 electrodeposition Methods 0.000 description 3
- ARZLUCYKIWYSHR-UHFFFAOYSA-N hydroxymethoxymethanol Chemical compound OCOCO ARZLUCYKIWYSHR-UHFFFAOYSA-N 0.000 description 3
- 239000001034 iron oxide pigment Substances 0.000 description 3
- 239000004611 light stabiliser Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
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- 239000002904 solvent Substances 0.000 description 3
- 238000003856 thermoforming Methods 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 238000010382 chemical cross-linking Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 2
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 229920005749 polyurethane resin Polymers 0.000 description 2
- 235000019592 roughness Nutrition 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 235000012222 talc Nutrition 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- DCRIQAAPAFMPKP-UHFFFAOYSA-N aluminum oxygen(2-) titanium(4+) Chemical compound [O-2].[O-2].[Al+3].[Ti+4] DCRIQAAPAFMPKP-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000012799 electrically-conductive coating Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
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- 239000001023 inorganic pigment Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-O phosphonium Chemical compound [PH4+] XYFCBTPGUUZFHI-UHFFFAOYSA-O 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- NVKTUNLPFJHLCG-UHFFFAOYSA-N strontium chromate Chemical compound [Sr+2].[O-][Cr]([O-])(=O)=O NVKTUNLPFJHLCG-UHFFFAOYSA-N 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium group Chemical group [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical compound [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 0.000 description 1
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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
Definitions
- the invention relates to a method for producing multi-layer coatings, especially for the production of multi-layer painted automobile bodies and body parts is suitable.
- the total layer thickness of such automotive coatings is in the usual practice between 90 and 130 microns, which is the sum of 15 to 25 microns for the primer, 30 to 40 microns for the filler layer, 10 to 25 microns for the basecoat and 30 to 40 microns for the clear coat results.
- EP-A1-0 448 280 describes a multi-layer coating whose total layer thickness is in the range mentioned above, but this has no clear lacquer layers. It has hitherto been necessary to exceed these layer thicknesses considerably if coatings with a particularly good visual appearance, ie with an outstanding gloss and topcoat level, are to be achieved, for example, when painting motor vehicles of the luxury and luxury classes.
- DE-A-195 19 665 describes a method for producing a Multi-layer painting, in which a primer layer is applied to a metal sheet applied a coating agent electrophoretically and then baked is, a color and / or effect basecoat from a coating agent is sprayed on and these are provided with one or more clear lacquer coatings a multi-layer coating with a total dry layer thickness of 70 up to 130 ⁇ m is generated and if necessary between the order of Primer layer and the application of the basecoat layer an intermediate layer applied and the clear coat or clear coat in one Total dry layer thickness of 30 to 80 microns can be applied.
- the object of the invention is to provide a method for producing a Multi-layer coating, especially for the production of multi-layer coating Motor vehicle bodies and body parts, one compared to the state of the Technology show reduced overall layer thickness of the multi-layer coating comparable gloss and topcoat level or those with the usual Total layer thicknesses of the multi-layer coating an outstanding, improved Show gloss and top coat level. There should be no disadvantages in Overall property level of the multi-layer coatings result.
- the procedure is supposed to the handling of deep-drawing aids, such as drawing greases or oils, and the later ones Avoid cleaning them.
- the primer layer is made of a primer coating agent and in a Layer thickness created that in the baked state is an electrically conductive Coating layer results.
- a body Assembled sheet metal parts can then pass through the immediately following second layer electrophoretic deposition from an electrophoretically depositable aqueous Coating agents are applied, preferably to an electrically insulating leads second coating layer.
- a second coating layer can be used Intermediate layer are formed and baked, whereupon as a third coating layer a basecoat layer of a color and / or effect coating agent, preferably by spraying, which is applied with one or more Clear lacquer coating layers is provided.
- the second Coating layer a color and / or effect basecoat from one Aqueous coating compositions which can be deposited electrophoretically by electrophoretic Deposition formed, which is overcoated with one or more layers of clear lacquer becomes.
- the total dry layer thickness of the lacquer structure is 80 to 130 ⁇ m, is particularly preferably less than 110 ⁇ m.
- the total dry layer thickness of the Paint build-up preferred at 70 to less than 110 ⁇ m.
- a first is in a process for producing a multi-layer coating, in particular multi-layer painted automobile bodies or body parts, in which on a coil made of sheet metal on both sides in the coil coating process Primer layer applied from a primer coating and is burned in, sheet metal parts are then punched out of the coil and in Thermoforming process deformed and possibly to a construction, in particular be assembled into an automobile body, whereupon further Coating layers are applied, which is characterized in that as Primer coating used one that applied to the Layer thickness and in the baked state to an electrically conductive Primer coating layer leads to what after baking the first Coating layer an electrically insulating second coating layer as Intermediate layer of an electrophoretically depositable aqueous coating agent is electrophoretically deposited and baked, followed by the third Coating layer a basecoat layer of a color and / or effect, Coating agent, preferably by spraying, applied and optionally directly is burned in with a fourth, transparent coating layer from one Clear lacquer coating agent is overcoated.
- the total dry layer thickness of the lacquer structure is 70 to 130 ⁇ m, preferably at 80 to 130 microns, particularly preferably below 110 microns and the Dry layer thickness of the transparent coating layer or the total layer thickness the transparent cover layers is 30 to 80 ⁇ m, preferably 40 to 60 ⁇ m microns.
- the clear lacquer layer can consist of one or more layers, the first clear coat preferably before applying the further clear coat is branded. If several layers of clear lacquer are applied, they can can be created from the same or different clear lacquer coating agents.
- a second independent and particularly preferred embodiment of the invention consists in a method for producing a multi-layer coating, in particular multilayered painted automobile bodies or body parts, in which on a coil a sheet of primer made from sheet metal on both sides in the coil coating process a primer coating is applied and baked, from the coil then stamped sheet metal parts and deformed in the deep-drawing process and if necessary to be assembled into an automobile body, whereupon without Applying intermediate layers of a color and / or effect basecoat is applied from an aqueous coating agent and baked and then with is provided with one or more clear lacquer coatings, characterized in that is that one is used as a primer coating agent, which in the applied layer thickness and in the baked state to an electrically conductive Primer coating layer, the basecoat layer consists of an electrophoretic separable aqueous coating agent by electrophoretic deposition is formed, the total dry film thickness of the clear coat or Clear lacquer layers at 30 to 80 microns, preferably 40 to 60 microns and the Total dry layer thickness of the multi-layer
- the first Coating layer usable primer coating agents in particular around liquid coating agents that can be applied in the coil coating process.
- It can be coating agents on an aqueous basis or on an organic basis Act solvent. They can be physically drying. As a rule, they are crosslinkable to form covalent bonds. It can be self- or third-party networking systems.
- Primer coatings that can be used contain one or more film-forming agents Binder. They can, especially if the binders are not self-crosslinking or are physically drying (thermoplastic), optionally also crosslinking agents contain. Both the binder component and the crosslinker component are not subject to any restrictions; it can be standard paint, the specialist common resins can be used. For example, as a film-forming Binders polyester, polyurethane, epoxy and / or polymer resins used become.
- crosslinkers that may be included is based on the Functionality of the binders, i.e. the crosslinkers are made from the usual Crosslinkers known to those skilled in the art are selected such that they have a function of the Binders have complementary, reactive functionality. Examples of such Complementary functionalities between binder and crosslinker are: Hydroxyl / methylol ether, hydroxyl / blocked isocyanate. If with each other compatible, several such complementary functionalities can also be used coexist. If necessary, in the primer coatings Crosslinkers used can be present individually or in a mixture.
- the primer coating compositions applied in the coil coating process contain constituents which impart electrical conductivity and which give the first coating layer in the baked state a resistivity which is sufficiently low for the electrophoretic deposition of a further coating layer from an electrophoretically depositable coating composition, generally below 10 8 Ohm.cm, for example between 10 3 and 10 8 Ohm.cm. This also ensures spot weldability of the primer coating layer.
- electrical conductivity-imparting components are particulate inorganic or organic electrical conductors or semiconductors, as are customary for this purpose and are known to the person skilled in the art, for example iron oxide black, graphite, carbon black, metal powder, for example made of aluminum, zinc, copper or stainless steel, molybdenum disulfide.
- the electrical conductivity imparting components are contained in the primer coating agent in such an amount that the desired resistivity of the primer coating layer is achieved in the baked state. Based on the solids content of the primer coating composition, the proportion of the constituent (s) conferring electrical conductivity is, for example, between 1 and 30% by weight. The proportion can easily be determined by a specialist; it depends, for example, on the specific weight, the specific electrical conductivity and the particle size of the components imparting electrical conductivity. One or more of these components can be present in combination.
- Primer coating pigments and / or fillers Preferably contain those that can be used in the process according to the invention Primer coating pigments and / or fillers.
- pigments or Fillers come, for example, with common, inorganic or organic pigments and / or fillers in question. Examples are carbon black, titanium dioxide, iron oxide pigments, Kaolin, talc, silicon dioxide and in particular corrosion protection pigments, such as Zinc chromate, strontium chromate, lead silicate, zinc phosphate, aluminum phosphate, Strontiumaluminiumpolyphosphathydrat.
- the primer coating compositions which can be used in the process according to the invention can also contain conventional additives.
- Paint additives such as wetting agents, dispersing agents, emulsifiers, leveling agents, Corrosion inhibitors, anti-foaming agents and in particular lubricants, for example Waxes such as polyethylene wax, molybdenum disulfide, graphite.
- suitable coating agents which can be applied in the coil coating process and which do not special or insufficient quantities of electrical conductivity Contain ingredients, are coating agents, from which compliance a low dry layer thickness of, for example, 1 to 3 ⁇ m coating layers can be generated, the one for deposition in the baked state subsequent coating layer from an electrophoretically depositable Coating agent sufficient electrical conductivity and spot welding ability exhibit.
- Coating agents which mediate on account of their content of electrical conductivity Constituents in a higher dry layer thickness of, for example, 2 to 15 ⁇ m, can be applied preferably from 3 to 10 microns, it is Coating agents from which coating layers can be produced, which in the baked state one for the deposition of a subsequent coating layer sufficiently low from an electrophoretically depositable coating agent have specific electrical resistance and are spot weldable.
- the primer coating agent is coated on both sides in the coil coating process Rolled sheet metal. Is it a primer coating agent, which contains no special electrical conductivity-imparting components, so it is applied in a sufficiently low dry layer thickness, which is a electrophoretic deposition of a further coating layer from a Adequate electrical conductivity for electrophoretically depositable coating agents guaranteed, i.e. in a dry layer thickness that is not yet electrically insulating for example 1 to 3 ⁇ m.
- primer coating composition which is the first coating layer in the baked state one for electrophoretic Deposition of a further coating layer from an electrophoretic depositable coating agent sufficiently low specific resistance contains imparting electrical conductivity imparting components, so that Primer coating agent in a dry layer thickness of, for example, 2 to 15 ⁇ m, preferably applied from 3 to 10 ⁇ m. Branding the Primer coating layer takes place briefly at high temperatures, for example within 30 to 60 seconds, for example in a 300 to 370 ° C are called convection ovens, whereby maximum object temperatures (PMT, peak metal temperature) between 200 and 260 ° C.
- PMT maximum object temperatures
- sheet metal parts with the desired shape are punched out and in the usual way then deformed in the deep-drawing process.
- the deformed parts can become one Construction, especially a body to be assembled.
- Suitable joining techniques are gluing and / or clinching and / or screwing and / or Welding, for example spot welding. Welding processes are preferred.
- a second coating layer is applied to the primer layer Electro dip coating applied. This can be an intermediate layer act if subsequently a basecoat layer that with one or more Clear coating is provided as a third coating layer, preferably by Spray, is applied. The second is preferred Coating layer around a basecoat on the one or more clearcoat be applied.
- the second Coating layer is applied, electrophoretically depositable coating agent used.
- the known anodic or cathodic are in particular separable electrodeposition paints (ETL).
- the ETL coating agents are, in particular, aqueous Coating agents with a solid up to 50% by weight, for example up to 20% by weight, the lower limit being, for example, 10% by weight.
- the solid will formed from binders customary for electrocoating, at least some of the binders are ionic and / or convertible into ionic groups Carries substituents and, if appropriate, groups capable of chemical crosslinking, and any crosslinking agents, fillers, pigments or conventional paint additives.
- the ionic groups or groups of the binders which can be converted into ionic groups can be anionic or groups which can be converted into anionic groups, acidic groups such as -COOH, -SO 3 H and / or -PO 3 H 2 and the corresponding anionic groups neutralized with bases. They can also be cationic or convertible into cationic groups, for example basic groups, preferably nitrogen-containing basic groups; these groups can be present in quaternized form or they are converted into ionic groups using a conventional neutralizing agent, for example an organic monocarboxylic acid, such as, for example, formic acid or acetic acid. Examples are amino, ammonium, for example quaternary ammonium, phosphonium and / or sulfonium groups.
- the second Coating layer for example the usual cathodic electrocoat materials (KTL) based on cationic or basic binders.
- KTL cathodic electrocoat materials
- Such basic resins are, for example, primary, secondary and / or tertiary Resins containing amino groups, the amine numbers of e.g. at 20 to 250 mg KOH / g lie.
- the weight average molecular weight (Mw) of the base resins is preferably 300 to 10,000.
- base resins are amino (meth) acrylate resins, Amino epoxy resins, amino epoxy resins with terminal double bonds, Amino epoxy resins with primary OH groups, aminopolyurethane resins, amino group-containing polybutadiene resins or modified epoxy resin-carbon dioxide-amine reaction products. These base resins can be self-crosslinking or they are used in a mixture with known crosslinkers. Examples of such Crosslinkers are aminoplast resins, blocked polyisocyanates, crosslinkers with terminal double bonds, polyepoxide compounds or crosslinkers, the Contain transesterifiable groups.
- the usual anionic group-containing anodically depositable electrocoat binders and paints can also be used in the process according to the invention to produce the second coating layer.
- binders based on polyesters, epoxy resin esters, (meth) acrylic copolymer resins, maleate oils or polybutadiene oils with a weight average molecular weight (Mw) of, for example, 300 to 10,000 and an acid number of 35 to 300 mg KOH / g.
- Mw weight average molecular weight
- the binders carry -COOH, -SO 3 H and / or -PO 3 H 2 groups. After neutralization of at least some of the acidic groups, the resins can be converted into the water phase.
- the binders can be self-crosslinking or externally crosslinking.
- the lacquers can therefore also contain customary crosslinking agents, for example triazine resins, crosslinking agents which contain groups capable of transesterification or blocked polyisocyanates.
- an ATL coating agent as the ETL coating agent to use, especially when realizing the particular preferred and independent embodiment of the present invention, in which the color and / or effect basecoat as a second coating layer is deposited electrophoretically.
- the ETL coating agents contain pigments, fillers and / or additives common in paint.
- Pigments come, for example, the usual inorganic and / or organic Colored pigments and / or effect pigments, such as Titanium dioxide, iron oxide pigments, Carbon black, phthalocyanine pigments, quinacridone pigments, metal pigments, e.g. made of titanium, Aluminum or copper, interference pigments, e.g. coated with titanium dioxide Aluminum, coated mica, graphite effect pigments, flaky Iron oxide or platelet-shaped copper phthalocyanine pigments in question.
- examples for Fillers are kaolin, talc or silicon dioxide.
- the pigments can be dispersed into pigment pastes, e.g. under use of known paste resins. It is particularly so in the case of ATL coating agents possible to use pigment pastes, such as those known to those skilled in the art Manufacture of two-coat basecoat / clearcoat type suitable water-based paints that can be applied by spraying can be used. Such Pigment pastes can be obtained by rubbing the pigments in one special water-thinnable paste resin.
- additives such as for ETL coating agents in particular are known.
- examples include wetting agents, neutralizing agents, Leveling agents, catalysts, corrosion inhibitors, anti-foaming agents, solvents, in particular, however, light stabilizers, if appropriate in combination with Antioxidants.
- Usable basecoats can be physically drying or with training covalent bonds can be crosslinked.
- binding-crosslinking basecoats can be self- or externally crosslinking Act systems.
- Those in the method according to the invention for producing the third coating layer usable color and / or effect basecoats are preferably liquid Coating agent. It can be a one- or multi-component coating agent act, one-component are preferred. It can be systems based act organic solvents or are preferably water-based paints, their binder systems in a suitable manner, e.g. anionic, cationic or non-ionic are stabilized.
- the basecoat coating agents that can be used are conventional Coating systems that use one or more common base resins as film-forming binders contain. You can, if the base resins are not self-crosslinking or self-drying are, if appropriate, also contain crosslinkers. Both the base resin component and the crosslinker component is also not subject to any restrictions.
- Binders can for example be polyester, polyurethane and / or (Meth) acrylic copolymer resins can be used.
- the preferred Waterborne basecoats are preferably polyurethane resins, particularly preferred at least in a proportion of 15 wt .-%, based on the solid resin content of the Water-based paint.
- crosslinkers that may be included not critical, it depends on the functionality of the base resins, i.e. the crosslinker are selected so that they are complementary to the functionality of the base resins, have reactive functionality. Examples of such complementary. Functionalities between base resin and crosslinker are: hydroxyl / methylol ether, Hydroxyl / Free Isocyanate, Hydroxyl / Blocked Isocyanate, Carboxyl / Epoxy. Provided compatible with each other, several such complementary Functionalities are present in a basecoat next to each other. The possibly in The crosslinkers used in the basecoats can be present individually or in a mixture.
- the method according to the invention for generating the third The basecoats used in the coating layer contain the usual physical ones drying and / or chemically crosslinking binders inorganic and / or organic colored pigments and / or effect pigments, such as e.g. titanium dioxide, Iron oxide pigments, carbon black, azo pigments, phthalocyanine pigments, Quinacridone pigments, metal pigments, e.g. made of titanium, aluminum or copper, Interference pigments, e.g. Titanium dioxide coated aluminum, coated Mica, graphite effect pigments, platelet-shaped iron oxide or platelet-shaped Copper phthalocyanine pigments.
- titanium dioxide Iron oxide pigments, carbon black, azo pigments, phthalocyanine pigments, Quinacridone pigments
- metal pigments e.g. made of titanium, aluminum or copper
- Interference pigments e.g. Titanium dioxide coated aluminum, coated Mica, graphite effect pigments, platelet-shaped iron oxide or platelet-shaped Copper phthalocyanine
- Basecoats contain paint additives, e.g. Fillers, catalysts, Leveling agents, anti-cratering agents or, in particular, light stabilizers, if appropriate Combination with antioxidants.
- paint additives e.g. Fillers, catalysts, Leveling agents, anti-cratering agents or, in particular, light stabilizers, if appropriate Combination with antioxidants.
- the color and / or the preferably applied by spraying as the third coating layer effect basecoat can exist as a two-layer basecoat system from a first, modified basecoat and a second, the actual Color of the basecoat layer determining the multilayer coating can be applied.
- the first basecoat is modified, for example by adding additional contains modifying binder components or filler components. He can for example, from the actual color applied afterwards determining basecoat are made by mixing with the additional Components.
- a clear lacquer coating agent for the production of the fourth and possibly further Coating layers or in the case of the particularly preferred and independent Embodiment of the present invention for the generation of the third and if necessary, further coating layers are basically all the usual clearcoats or transparent colored or colorless pigmented coating agent.
- she can be solvent-free (liquid or as a powder clear coat), or it can be Act systems based on solvents or are water-borne clear varnishes, the binder systems of which are suitable, e.g. are anionically, cationically or non-ionically stabilized.
- water-dilutable Clear lacquer systems can be water-soluble or water-dispersed Systems, for example emulsion systems or powder slurry systems.
- the Clear lacquer coating agents harden more covalently when stoved to form Bonds due to chemical crosslinking.
- the clear lacquers which can be used in the process according to the invention are to conventional clear lacquer coating compositions which are one or more conventional base resins contain film-forming binders. You can if the base resins don't are self-crosslinking, optionally also contain crosslinkers. Both the The base resin component and the crosslinker component are not subject to anything Restriction.
- film-forming binders for example Polyester, polyurethane and / or (meth) acrylic copolymer resins can be used.
- crosslinking agents which may be present is not critical, it is directed according to the functionality of the base resins, i.e. the crosslinkers are selected so that they are a reactive functionality that is complementary to the functionality of the base resins exhibit.
- Examples of such complementary functionalities between base resin and crosslinkers are: carboxyl / epoxy, hydroxyl / methylol ether, hydroxyl / free Isocyanate, hydroxyl / blocked isocyanate, (meth) acrylolyl / CH-acidic group.
- complementary Functionalities are: carboxyl / epoxy, hydroxyl / methylol ether, hydroxyl / free Isocyanate, hydroxyl / blocked isocyanate, (meth) acrylolyl / CH-acidic group.
- the transparent coating can be in a single layer or in the form of several Layers of the same or several different transparent Coating agents are applied.
- the transparent one is useful
- Clear coating agents used that have the lowest possible tendency to run off, for example, high-solids clearcoats with a correspondingly adjusted rheological behavior. Powder clearcoats are particularly preferred.
- Metal sheets rolled up into coils are used as substrates for the process according to the invention, for example with a sheet thickness of 0.7 to 1.3 mm typical for body construction, for example made of iron, zinc, aluminum or corresponding alloys.
- Galvanized sheet metal for example galvanized steel sheet, is preferred.
- the metal surfaces can be pretreated, for example provided with phosphating and optionally passivation.
- the metal surfaces can have the roughness with average roughness values (R a values, cf. DIN / EN 10130) that are customary in the state of the art for shaping using deep-drawing aids, for example from 0.6 to 1.8 ⁇ m.
- metal sheets with lower surface roughnesses with R a values below 0.6 ⁇ m for example from 0.15 to 0.6 ⁇ m, which have hitherto been unusual in automobile construction. An artificial roughening of the metal sheet surface is not necessary.
- the first coating layer namely the primer
- the first coating layer is placed on these substrates. on both sides from the primer coating agent in the coil coating process rolled on. Does the primer coating contain no electrical conductivity mediating components, it is applied in a dry layer thickness, the one for electrophoretic deposition one another coating layer made of an electrophoretically depositable coating agent ensures sufficient electrical conductivity, for example in a Dry layer thickness from 1 to 3 ⁇ m.
- primer coating composition which is the first coating layer in the baked state one for electrophoretic Deposition of a further coating layer from an electrophoretic depositable coating agent sufficiently low specific resistance contains imparting electrical conductivity imparting components, so that Primer coating agent in a dry layer thickness of, for example, 2 to 15 ⁇ m, preferably applied from 3 to 10 ⁇ m. Branding the Primer coating layer takes place briefly at high temperatures, for example within 30 to 60 seconds, for example in a 300 to 370 ° C are called convection ovens, whereby maximum object temperatures (PMT, peak metal temperature) between 200 and 260 ° C.
- PMT maximum object temperatures
- sheet metal parts with the desired shape are now punched out and in the usual manner then deformed in the deep-drawing process.
- the deformed parts can then if necessary together with components made of other materials Construction, in particular a body to be put together, for example by gluing and / or clinching and / or screwing and / or preferably welding.
- Components made of other materials can be, for example otherwise act on pre-coated or uncoated metals or plastics, preferred are components with electrically conductive and electrophoretic coatable surface.
- the second coating layer made of an electrophoretically depositable coating agent is applied to the substrate thus obtained, which preferably has a resistivity of generally less than 10 8 ohm.cm, in particular 10 3 to 10 8 ohm.cm, and in particular at elevated temperatures, for example baked between 130 and 180 ° C.
- the second coating layer from the electrophoretically depositable coating agent is applied as an intermediate layer, this is preferably done in dry layer thicknesses of, for example, 5 to 40 ⁇ m, particularly preferably from 10 to 30 ⁇ m, while the application as a color and / or effect-imparting base lacquer layer, preferably in a color tone dependent dry layer thickness of, for example, 10 to 50 microns, particularly preferably from 15 to 40 microns.
- the second coating layer generally has practically no electrical conductivity, ie it has a specific resistance of more than 10 9 ohm.cm in the baked state. In the case of the particularly preferred and independent embodiment of the present invention, it is a color and / or effect basecoat layer.
- the one obtained by electrodeposition and electric in the burned-in state insulating coating can, but does not have to cover the entire surface of the extend three-dimensional substrate. So it is for example in the invention Preferred method (especially for the particularly preferred and independent Embodiment of the present invention, in which the color and / or Effect basecoat layer from an electrophoretically separable Coating agent is applied) an entire first coating by application a primer from the primer coating agent and a second coating from the ETL coating material essentially only on outer areas, especially on visible surfaces of a three-dimensional substrate, i.e. for example, not in narrow cavities in a body.
- the order preferably a spray order, is applied to the third Coating layer, for example from a color and / or effect basecoat or in the case of the particularly preferred and independent embodiment of the present invention from a clear lacquer coating composition.
- a spray application of the third coating layer from the color and / or effect Basecoat is applied, for example, in a dry film thickness depending on the color from 10 to 25 ⁇ m, for example by compressed air spraying, airless spraying or ESTA high-speed rotation spraying.
- Basecoat top coat is applied, for example, after a short flash-off phase, e.g. at 20 to 80 ° C, the application of the clearcoat, preferably in the wet-on-wet process.
- the fourth coating layer is made from a conventional liquid paint or powder clear coat (in this case it is a dry-on-wet application) applied and together with the third coating layer at elevated temperatures, for example baked from 80 to 160 ° C. If necessary, further layers of clear lacquer can be used the same or different clear coat coating agents are applied. According to the invention, work is carried out so that the layer thickness of the transparent Coating layer or the total layer thickness of the transparent coating layers 30 to 80 microns, preferably 40 to 60 microns.
- the clearcoat is applied to the second, the preferably burned-in color and / or effect-giving ETL coating layer.
- the clear lacquer coating layer becomes a conventional liquid clear lacquer or a powder clear lacquer applied and baked, for example, at temperatures of 80 to 160 ° C. If necessary, further layers of clear lacquer from the same or from it various clear lacquer coating agents can be applied. According to the invention worked that the layer thickness of the transparent coating layer or Total layer thickness of several transparent coating layers at 30 to 80 ⁇ m, is particularly preferably 40 to 60 ⁇ m.
- That applied as a third coating layer preferably by spray application Basecoat and preferably by spray application as the fourth or in the case of particularly preferred and independent embodiment of the invention as a third Coating layer applied clear coat may, but need not extend all over the three-dimensional substrate. So it is in The inventive method preferably the third and / or fourth coating layer in the essential only on outer areas, especially on visible surfaces of a three-dimensional substrate, i.e. for example not in narrow Cavities in a body.
- substrates are preferably automobile bodies or parts from that. However, it can also be other industrial goods such as Household appliance housings, facade parts, automotive parts.
- the inventive method By measuring the gloss and determining the long- and short-wave portions of the Surface structure of the outer clear lacquer surfaces from after Automobile parts and bodies produced according to the method was found that the inventive method compared to the production of to the prior art in a reduced overall layer thickness multi-layer lacquered Automobile parts or bodies allowed, the multi-coat paint one good gloss that meets the requirements of automotive OEM painting and have a topcoat. Analogously, it was found that the Process according to the invention preferably for the production of automotive parts or bodies can be used, the multi-layer paintwork one outstanding, improved gloss and topcoat level, even if the State-of-the-art conventional total layer thicknesses adhered to and not be crossed, be exceeded, be passed.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
- b) die Zwischenschicht oder wenn keine Zwischenschicht aufgetragen wird die Basislackschicht aus einem elektrophoretisch abscheidbaren Überzugsmittel durch elektrophoretische Abscheidung aufträgt.
Claims (8)
- Verfahren zur Herstellung einer Mehrschichtlackierung, bei dem auf ein Metallblech eine Grundierungsschicht aus einem Überzugsmittel aufgetragen und anschließend eingebrannt wird, eine farb- und/oder effektgebende Basislackschicht aus einem Überzugsmittel aufgebracht wird und diese mit einem oder mehreren Klarlacküberzügen versehen wird, wobei man eine Mehrschichtlackierung mit einer Gesamttrockenschichtdicke von 70 bis 130 µm erzeugt, wobei mana) gegebenenfalls zwischen dem Auftrag der Grundierungsschicht und dem Auftrag der Basislackschicht eine Zwischenschicht aufträgt, undc) die Klarlackschicht oder die Klarlackschichten in einer Gesamttrockenschichtdicke von 30 bis 80 µm aufbringt,
dadurch gekennzeichnet, daß man als Metallblech ein Coil aus Metallblech verwendet und die Grundierungsschicht beidseitig im Coil-Coating-Verfahren aufwalzt und anschließend an das Einbrennen aus dem Coil Blechteile ausstanzt und im Tiefziehverfahren verformt und gegebenenfalls mehrere dieser Blechteile zu einer Konstruktion zusammenfügt, worauf man die Basislackschicht oder die Zwischenschicht aufbringt, und wobei manb) die Zwischenschicht oder wenn keine Zwischenschicht aufgetragen wird die Basislackschicht aus einem elektrophoretisch abscheidbaren Überzugsmittel durch elektrophoretische Abscheidung aufträgt. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die farb- und/oder effektgebende Basislackschicht als zweite Überzugsschicht direkt ohne vorheriges Aufbringen einer Zwischenschicht aus einem elektrophoretisch abscheidbaren Überzugsmittel durch elektrophoretische Abscheidung aufgetragen wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß man die Klarlackschicht oder die Klarlackschichten in einer Gesamttrockenschichtdicke von 40 bis 60 µm aufträgt.
- Verfahren nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß man die Mehrschichtlackierung in einer Gesamttrockenschichtdicke von unter 110 µm aufträgt.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß es zur Lackierung von Automobilkarossen oder Automobilkarossenteilen durchgeführt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß als Überzugsmittel zur Herstellung der Grundierungsschicht ein Überzugsmittel mit elektrische Leitfähigkeit vermittelnden Bestandteilen verwendet wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß als Überzugsmittel zur Herstellung der zweiten Überzugsschicht ein anodisch abscheidbarer Elektrotauchlack verwendet wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Metallblech-Coils mit einer Oberflächenrauhigkeit mit Ra-Werten unter 0,6 µm verwendet werden.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19648517A DE19648517A1 (de) | 1996-11-23 | 1996-11-23 | Verfahren zur Mehrschichtlackierung |
| DE19648517 | 1996-11-23 | ||
| PCT/EP1997/006417 WO1998023390A1 (de) | 1996-11-23 | 1997-11-18 | Verfahren zur mehrschichtlackierung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0952894A1 EP0952894A1 (de) | 1999-11-03 |
| EP0952894B1 true EP0952894B1 (de) | 2002-03-06 |
Family
ID=7812542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97950199A Expired - Lifetime EP0952894B1 (de) | 1996-11-23 | 1997-11-18 | Verfahren zur mehrschichtlackierung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0952894B1 (de) |
| DE (2) | DE19648517A1 (de) |
| ES (1) | ES2174317T3 (de) |
| WO (1) | WO1998023390A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10028705B4 (de) * | 2000-06-09 | 2004-04-08 | Audi Ag | Verfahren zur Herstellung eines mit mindestens zwei unterschiedlichen Lacken beschichteten Karosserieelementes eines Kraftfahrzeugs |
| US7399397B2 (en) | 2004-05-10 | 2008-07-15 | E.I. Du Pont De Nemours And Company | Process for the production of coated substrates |
| DE102006005898B4 (de) * | 2006-02-09 | 2008-04-30 | Multicolor Deutschland Gmbh | Verfahren zur Herstellung von Farbmustern |
| DE102006016477A1 (de) * | 2006-04-07 | 2007-10-11 | GM Global Technology Operations, Inc., Detroit | Kataphoretische Tauchlackierungen an Karosserien und Bauteilen mit verbessertem Umgriffverhalten |
| DE102006036269A1 (de) * | 2006-08-03 | 2008-02-07 | Volkswagen Ag | Verfahren zur Herstellung einer farbigen Beschichtung von zumindest teilweise aus Metall bestehenden Komponenten von Kraftfahrzeugen |
| DE102007044572B4 (de) | 2007-09-10 | 2020-01-16 | Volkswagen Ag | Betriebsmittel zur qualitätsgerechten Lackierung einer Frontklappe von Kraftfahrzeugen |
| CA3004781C (en) * | 2015-11-26 | 2020-08-25 | Basf Coatings Gmbh | Method for producing a multicoat paint system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2614468B2 (ja) * | 1987-11-26 | 1997-05-28 | 関西ペイント株式会社 | 上塗り塗装仕上げ方法 |
| AU3750889A (en) * | 1988-05-20 | 1989-12-12 | Ppg Industries, Inc. | Thermoset drawable coating compositions |
| JPH03264692A (ja) * | 1990-03-14 | 1991-11-25 | Shinto Paint Co Ltd | 被覆金属板の塗装方法 |
| DE4215070A1 (de) * | 1992-05-07 | 1993-11-11 | Herberts Gmbh | Verfahren zur Herstellung von Mehrschichtlackierungen |
| DE19512017C1 (de) * | 1995-03-31 | 1996-07-18 | Herberts Gmbh | Verfahren zur Mehrschichtlackierung |
| DE19519665C1 (de) * | 1995-05-30 | 1996-09-05 | Herberts Gmbh | Verfahren zur Mehrschichtlackierung |
| DE19519667C1 (de) * | 1995-05-30 | 1997-02-06 | Herberts Gmbh | Verfahren zur Mehrschichtlackierung |
| DE19633173C1 (de) * | 1996-08-17 | 1997-10-02 | Herberts Gmbh | Verfahren zur Mehrschichtlackierung |
-
1996
- 1996-11-23 DE DE19648517A patent/DE19648517A1/de not_active Withdrawn
-
1997
- 1997-11-18 EP EP97950199A patent/EP0952894B1/de not_active Expired - Lifetime
- 1997-11-18 ES ES97950199T patent/ES2174317T3/es not_active Expired - Lifetime
- 1997-11-18 WO PCT/EP1997/006417 patent/WO1998023390A1/de not_active Ceased
- 1997-11-18 DE DE59706579T patent/DE59706579D1/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2174317T3 (es) | 2002-11-01 |
| EP0952894A1 (de) | 1999-11-03 |
| DE59706579D1 (de) | 2002-04-11 |
| WO1998023390A1 (de) | 1998-06-04 |
| DE19648517A1 (de) | 1998-06-04 |
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