WO2006097201A1 - Mehrschichtlackierungen, verfahren zu ihrer herstellung und deren verwendung im automobilbau - Google Patents
Mehrschichtlackierungen, verfahren zu ihrer herstellung und deren verwendung im automobilbau Download PDFInfo
- Publication number
- WO2006097201A1 WO2006097201A1 PCT/EP2006/001929 EP2006001929W WO2006097201A1 WO 2006097201 A1 WO2006097201 A1 WO 2006097201A1 EP 2006001929 W EP2006001929 W EP 2006001929W WO 2006097201 A1 WO2006097201 A1 WO 2006097201A1
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- Prior art keywords
- atoms
- radical
- pigmented coating
- branched
- coating
- Prior art date
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- 0 *Cc1cccc(CN)c1 Chemical compound *Cc1cccc(CN)c1 0.000 description 1
- RNLHGQLZWXBQNY-UHFFFAOYSA-N CC(C)(C1)CC(C)(CN)CC1N Chemical compound CC(C)(C1)CC(C)(CN)CC1N RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 description 1
- AVBFYDXLBKBKNT-UHFFFAOYSA-N CC1CC(CN)CCC1 Chemical compound CC1CC(CN)CCC1 AVBFYDXLBKBKNT-UHFFFAOYSA-N 0.000 description 1
- DZIHTWJGPDVSGE-UHFFFAOYSA-N NC1CCC(CC(CC2)CCC2N)CC1 Chemical compound NC1CCC(CC(CC2)CCC2N)CC1 DZIHTWJGPDVSGE-UHFFFAOYSA-N 0.000 description 1
- YBRVSVVVWCFQMG-UHFFFAOYSA-N Nc1ccc(Cc(cc2)ccc2N)cc1 Chemical compound Nc1ccc(Cc(cc2)ccc2N)cc1 YBRVSVVVWCFQMG-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
- C09D5/028—Pigments; Filters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/32—Radiation-absorbing paints
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
Definitions
- Multicoat paint systems process for their preparation and their use in the automotive industry
- the present invention relates to multicoat color and / or effect paint systems comprising at least one primer (G), at least one pigmented coating (P) arranged thereon, and optionally a transparent coating (K) arranged on the pigmented coating (P).
- the present invention also provides a process for producing the multicoat paint systems and their use.
- Multilayer coatings used in the field of motor vehicle finishing today generally consist of an electrophoretically applied primer which protects against corrosion and stone chips and a filler layer which subsequently protects against stone chips and smoothens the surface.
- the filler layer is usually applied to the already baked primer and cured. But it is also possible to cure the primer and filler layer together.
- a single-coat finish or a decorative two-coat finish is then applied to the cured surfacer coat from a color and / or effect basecoat film applied in one or more spray passes and a protective clearcoat film applied thereto wet-on-wet. Subsequently, the monolayer coating or the basecoat film (s) and the clearcoat film are cured together.
- multicoat paint systems are known in which one or more basecoat films are applied directly to an electrophoretically deposited primer. If necessary, a clearcoat film is applied over the basecoat film (s). Subsequently, the basecoat layer (s) and, if appropriate, the clearcoat layer are cured together. In this process, the filler layer usually located between the cathodic and basecoat layer is dispensed with.
- the tasks otherwise assumed by the surfacer layer such as e.g. Rockfall protection, smoothing of the surface, support of the opacity of the basecoat with basecoats with low hiding power, avoidance of the delamination of the electrophoretically applied primer and UV protection of the multi-layer coating, are taken over by the remaining layers.
- the properties of the multicoat paint system as a whole must not be impaired, i. For example, that the corrosion protection must not be deteriorated.
- EP-B-823 289 describes a process for the production of the aforementioned multicoat paint systems in which two basecoat films are applied directly to an electrophoretically deposited and cured primer and cured. Then it will open the cured basecoat films are still applied and cured with a transparent coating agent.
- the first basecoat film has a light transmission at a wavelength of 400 to 700 nm of 5% or less due to pigmentation at a dry film thickness of 30 ⁇ m.
- a disadvantage of this method is the required curing of the basecoat films before the clearcoat application.
- Another disadvantage is the pigmentation required to achieve opacity of the first basecoat layer, which is not suitable for any desired hue of the multi-layer coating.
- the required pigmentation has a strong influence on the hue of the first basecoat film, which can lead to large problems with thin layer thicknesses of the second basecoat layer, for example 6 to 11 microns and the associated, only insufficient opacity of the second basecoat depending on the color.
- DE-A-44 38 504 also discloses a process for the production of multicoat paint systems of the type mentioned above, in which two different pigmented coatings and a transparent coating are applied to the primer preferably applied by electrophoresis, the first pigmented coating Filler functions takes over and contains as a binder a special polyurethane dispersion and titanium dioxide as a pigment and talc as a filler.
- a disadvantage of this process is again the pigmentation of the basecoat film (s) required to achieve the opacity.
- intermediate drying between the application of the first and second pigmented coatings is required to improve the appearance.
- German Patent Application P 10 2004 028 368 which has not yet been published, also proposes omitting the filler layer for improving the UV stability of the relevant multi-layer coating in the first pigmented coating in addition to at least To use a pigment and / or effect pigment at least one UV-absorbing pigment and talcum.
- WO 03/068418 also discloses multicoat paint systems of the type mentioned in the introduction.
- the problems associated with the omission of the surfacer layer with regard to UV sensitivity of the primer, in particular delamination of the primer should be avoided by virtue of the basecoat film directly above the primer having a UV transmittance of at most 5% at 400 nm .
- the commercially available light stabilizer Tinuvin® 1130 based on a UV absorber with an absorption maximum of 346 nm is added to the basecoat.
- the UV stability of the multicoat system can not be guaranteed or has to be adjusted via the pigmentation.
- EP-B-576 527 discloses UV absorbers based on 5-thio-substituted benzotriazoles, which have an absorption maximum of up to 367 nm, which has been shifted into the longer-wavelength range in comparison to the previously known UV absorbers.
- UV absorbers are also recommended for the UV protection of electrophoretically deposited primers.
- the use of these UV absorbers in the multicoat paint systems of the aforementioned type does not always lead to sufficient UV stability.
- UV absorbers with a longer wavelength absorption maximum based on benzotriazoles are known, such as the benzotriazoles substituted in the 5-position with alkylsulfonyl groups described in US-A-5,436,349 or those disclosed in US-A-6,166,218 described in the 5-position with CF3 groups substituted benzotriazoles.
- the use of these UV absorbers in the multicoat paint systems of the aforementioned type does not always lead to sufficient UV stability. task
- VDA Test Sheet E
- SAE J1960 JUN89 in the following abbreviated CAM 180
- the multicoat paint systems should be able to be produced in all shades desired by the automobile manufacturer and, if a transparent coating is present, using the transparent coating agents already in use.
- the multicoat paint systems should be producible by means of a process which is as simple and inexpensive as possible, with the layer thicknesses of the individual layers preferably being as low as possible.
- the individual layers of the multicoat system should preferably also be producible as easily as possible with the aid of coating agents from various manufacturers.
- the multicoat paint systems should meet the requirements usually imposed on an automotive finish, but in particular have the required good corrosion protection and stone chip protection.
- the present invention also provides a process for producing the multicoat paint systems and their use.
- UV1 with an absorption maximum of at least 370 nm in the pigmented layer and / or in the primer multi-layer coatings are obtained, which also after moisture exposure sufficient UV stability have, even in hitherto critical shades, ie in particular even if the pigmented coatings no UV absorbing pigments, such as carbon black and / or corresponding iron oxide pigments containing.
- the multicoat paint systems according to the invention therefore also exhibit UV exposure, in particular also after exposure to moisture in the o. Steam jet test at the St. Andrew's Cross under UV exposure, especially at a load of 6000 hours in the o.g. CAM 180 - Test, no delamination of the pigmented coating from the primer.
- the multicoat paint systems according to the invention can be provided in all shades desired by the automobile manufacturer ,
- the second basecoat layer only a very small layer thickness below the hiding power, preferably a layer thickness of 40 to 70% of the layer thickness, which would be required to achieve the hiding power has. It is therefore possible, for example according to the invention, that when transparent coating agents are used, the second basecoat film has only a layer thickness of 6 to 8 .mu.m in the case of metallic finishes and of approximately 11 .mu.m in the case of other solid-color finishes, where appropriate However, even higher coating thicknesses are possible, although it is not required by the hiding power and the color scheme.
- the multicoat paint systems according to the invention have the advantage that they can be produced by means of a process which is as simple and inexpensive as possible.
- the multicoat paint systems according to the invention generally meet the requirements usually imposed on an automotive finish, and therefore in particular have the required good corrosion protection and rockfall protection.
- the multicoat paint systems according to the invention have at least one primer (G), at least one pigmented coating (P) arranged thereon and optionally a transparent coating (K) arranged on the pigmented coating (P).
- the pigmented coating (P) consists of two or more pigmented coatings (P1) to (Pn), more preferably two pigmented coatings (P1) and (P2), are preferred.
- UV1 UV absorber
- the UV absorber (UV1) used according to the invention preferably also has at least 50% of the absorption in the range from 300 to 405 nm, compared with the absorption in the absorption maximum.
- the UV absorber used according to the invention moreover has at least 10% of the absorption in the range from 405 to 420 nm, compared with the absorption in the absorption maximum.
- the pigmented coating (s) (P) or (P1) to (Pn) preferably contains or contains the UV absorber (UV1) used according to the invention.
- UV absorber (UV1) used according to the invention Owing to the intrinsic color of the UV absorbers (UV1) used according to the invention having a UV absorption maximum of at least 370 nm, it is particularly preferable to use either multicoat paint systems comprising two pigmented coatings in which the lowermost pigmented coating (P1) contains the UV absorber used according to the invention, or multi-layer finishes from more than two pigmented coatings in which the lowermost pigmented coating (P1) and / or the lowest pigmented coatings (P1) to (Pn-1) contain the UV absorber (UV1) used according to the invention.
- multicoat paint systems consisting of at least one primer (G), a first pigmented coating disposed thereon
- UV absorbers having an absorption maximum of at least 370 nm which do not migrate into the adjacent layers, in particular not into the transparent coating (K), in order to prevent in particular color tone problems. If necessary, it is therefore possible to use UV absorbers which have been immobilized by methods familiar to the person skilled in the art.
- UV absorbers which have an absorption maximum of at least 370 nm are, for example, UV absorbers from the class of substituted hydroxy-phenyl-benzotriazoles, wherein the type and position of the substituents of the benzotriazoles the wavelength range of Absorption maximum is controlled.
- Ri is hydrogen, a branched or unbranched alkyl radical having 1 to 24 carbon atoms, a branched or unbranched alkenyl radical having 2 to 18 carbon atoms, a cycloalkyl radical having 5 to 12 carbon atoms, a Phenylalkyl radical having 7 to 15 C atoms, a phenyl radical, or this phenyl or phenylalkyl radical on the phenyl ring may be substituted by 1 to 4 alkyl groups having 1 to 4 C atoms; or where
- Atoms an alkylidene radical having 2 to 12 C atoms, a benzylidene radical, a p-xylene radical or a cycloalkylene radical having 5 to 7 C atoms;
- R 2 is a branched or unbranched alkyl radical having 1 to 24 C atoms, a branched or unbranched alkenyl radical having 2 to 18 C atoms, a cycloalkyl radical having 5 to 12 C atoms, a phenylalkyl radical having 7 to 15 C atoms, a phenyl radical or this phenyl or phenylalkyl radical on the phenyl ring can be substituted by 1 to 3 alkyl groups having 1 to 4 C atoms; or where
- this alkyl radical may be substituted by one or more -OH, -OCO-R 11 , -ORi 4 , -NCO or -NH 2 groups or mixtures thereof, or where this alkyl or alkenyl radical may be interrupted by one or more -O- , -NH- or -NRi 4 - groups or mixtures thereof and which may be unsubstituted or substituted by one or more -OH, -ORu or -NH 2 groups or mixtures thereof; in which
- R 11 is hydrogen, a branched or unbranched alkyl radical having 1 to 18 C atoms, a C 5 -C 2 cycloalkyl radical, a branched or unbranched alkenyl radical having 3 to 8 C atoms, a phenyl, naphthyl or C 7 -C 5 Phenylalkyl radical; and R 14 is hydrogen or a branched or unbranched alkyl radical having 1 to 24 carbon atoms
- R 2 is -OR 14 , a group -C (O) -OR 14 , -C (O) -NHR 14 or -C (O) -
- R '14 has the same meaning as R 14 ; or R 2 is -SR 13 , -NHR 13 or -N (R 13 ) 2 ; or
- R 2 is - (CH 2 ) H 1 -CO-X 1 - (Z) P -YR 15 wherein Xi is -O- or -N (Ri 6 ) -,
- Y is -O- or -N (R 17 ) - or a direct bond
- Z is C 2 -C 12 -alkylene, C 4 -C 12 -alkylene interrupted by one or more nitrogen atoms, oxygen atoms or a mixture thereof, or is C 3 -C 12 -alkylene, butenylene, butynylene, cyclohexylene or phenylene, where each of these radicals may additionally be substituted by an OH group or a group:
- R 5 , R ⁇ , R 7 and R 8 are each independently of one another hydrogen, halogen, CN, NO 2 or NH 2 ,
- R 13 is alkyl having 1 to 20 C atoms, hydroxyalkyl having 2 to 20 C atoms, alkenyl having 3 to 18 C atoms, cycloalkyl having 5 to 12 C atoms, phenylalkyl having 7 to 15 C atoms, phenyl or Naphthyl, both of which may be substituted with one or two alkyl radicals having 1 to 4 carbon atoms;
- R 16 and RI 7 are each independently hydrogen, Ci-Ci 2 alkyl, C 3 - Ci2-alkyl interrupted by 1 to 3 oxygen atoms, or cyclohexyl or C 7 -Ci 5 -phenylalkyl, and Ri 6 together with Ri 7 can also be ethylene when Z is ethylene; X is O or NEi where
- R22 is a branched or unbranched alkyl radical having 1 to 18 C atoms, branched or unbranched alkenyl radical having 2 to 18 C atoms, a C 5 -C 10 cycloalkyl, phenyl or naphthyl, C 7 -C 5 phenylalkyl, or two R 22 Radicals are when adjacent to an N or Si atom and together with the atom to which they are attached can form a pyrrolidine, piperidine or morpholino ring;
- R2 3 is hydrogen, OR 22 , NHR 22 , N (R 22 J 2 or has the same meaning as R 22 , R 24 is OR 22 , NHR 22 , N (R 22 J 2 or has the same meaning as R 22 , R 25 is hydrogen, OH, oR 22, NHR 22 or N (R 22 J 2, O-glycidyl or has the same meaning as R 22, R 2 6 is OH, oR 22, NHR 22 or N (R 22 J 2, R
- R 30 is branched or unbranched C 1 -C 1 8 alkyl
- Ri to R8 have the meanings given above and Q is branched or straight displayed C2-Ci2 alkylenes, C 2 -C 2 alkylenes, which is interrupted by one or more -O-, NH or NR 14 atoms, C 5 - C 10 cycloalkylene, para-phenylene or a group
- Halogen is, for example, fluorine, chlorine, bromine or iodine, preferably chlorine.
- Branched or unbranched alkyl radicals having 1 to 24 C atoms are, for example, methyl, ethyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, tert-amyl, 2-ethylhexyl, tert-octyl, lauryl, tert-dodecyl , Tridecyl, n-hexadecyl, n-octadecyl or eicosyl radicals.
- Branched or unbranched alkenyl radicals having 2 to 18 carbon atoms are, for example, allyl, pentenyl, hexenyl, doceneyl or oleyl radicals. Alkenyl radicals having 3 to 16, in particular 3 to 12 and very particularly preferably 2 to 6 C atoms are preferred. Cycloalkyl having 5 to 12 carbon atoms are, for example, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl and cyclododecyl radicals.
- C 1 -C 4 alkyl-substituted Cs-Cs-cycloalkyl is, for example, methylcyclopentyl, dimethylcyclopentyl, methylcyclohexyl, dimethylcyclohexyl, trimethylcyclohexyl or tert-butylcyclohexyl radicals.
- phenylalkyl having 7 to 15 C atoms examples include benzyl, phenylethyl, ⁇ -methylbenzyl or ⁇ , ⁇ -dimethylbenzyl radicals.
- alkyl-substituted phenyl examples include toluyl and XyIyI radicals.
- Alkyl substituted by one or more -O- groups and / or substituted by one or more -OH groups may e.g.
- Alkyl interrupted by one or more -O- may be derived from ethylene oxide units or from propylene oxide units or mixtures of both.
- radicals are derived analogously to the above-described -O- interrupted radicals, preferred are repeating units of ethylenediamine.
- Examples are CH 3 -O-CH 2 CH 2 -, CH 3 -NH-CH 2 CH 2 -, CH 3 -N (CH 3 ) -CH 2 -, CH 3 -O-CH 2 CH 2 -O-CH 2 CH 2 -, CH 3 - (O-CH 2 CH 2 -) 2 O-CH 2 CH 2 -, CH 3 - (O-CH 2 CH 2 -) 3 O-CH 2 CH 2 - or CH 3 - ( O-CH 2 CH 2 -) 4 O-CH 2 CH 2 -.
- Alkylene is, for example, ethylene, tetramethylene, hexamethylene, 2-methyl-1, 4-tetramethylene, hexamethylene, octamethylene, decamethylene and dodecamethylene.
- Cycloalkylene is, for example, cyclopentylene, cyclohexylene, cycloheptylene, cyclooctylene and cyclododecylene, preferably cyclohexylene.
- Alkylene interrupted by oxygen, NH or -NR-u- is, for example, -CH 2 CH 2 -O-CH 2 CH 2 -, -CH 2 CH 2 -NH-CH 2 CH 2 -, -CH 2 CH 2 -N ( CH 3 ) - CH 2 CH 2 -, -CH 2 CH 2 -O-CH 2 CH 2 -O-CH 2 CH 2 -, -CH 2 CH 2 - (O-CH 2 CH 2 -) 2 O-CH 2 CH 2 -,
- Radical Q is straight or branched CiCi 2 alkylene, C 5 -CioCycloalkylen, para-phenylene or a group
- the radical can be obtained from readily available diamines, for example the amines commercially available under the name Jeffamine.
- diamines are ethylenediamine, propylenediamine, 2-methyl-1, 5-pentamethylenediamine, isophoronediamine or 1,2-diaminocyclohexane.
- the radical Z can be derived from the same diamines or from the corresponding diols.
- Typical Jeffamines are e.g. D-2000
- UV absorbers (UV1) of the formulas (I) and (II), wherein
- Ri is hydrogen, straight-chain or branched alkyl having 1 to 12 C atoms or phenylalkyl having 7 to 15 C atoms
- R 2 is hydrogen, straight-chain or branched alkyl having 1 to 12 C atoms or phenylalkyl having 7 to 15 C atoms or phenyl, or this phenyl or phenylalkyl radical on the phenyl ring is substituted by 1 to 3 alkyl groups having 1 to 4 C atoms can be;
- R 5 and R 6 are hydrogen or one or both of them are Cl or Br;
- R 7 and Rs are independently hydrogen, Cl or Br;
- X is O or NEi ,
- E 1 is hydrogen, unbranched or branched alkyl having 1 to 6 C atoms, which is unsubstituted or substituted by 1 to 4 OH, phenyl which is unsubstituted or substituted by F, CF 3 , CN or Cl, or C 7 -C 9 phenylalkyl ,
- absorbers (UV1) having the following formula (1b) or (2c)
- UV absorber Tinuvin® CGL 957 also has an absorption of more than 50% of the absorbance at 380 nm in the entire range of 300 to 405 nm and an absorbance of more than 10% of the absorbance at 380 nm in the range of 405 to 420 nm.
- the use of the UV absorbers (UV1) used according to the invention in the respective layers only leads to a slight change in hue of the respective layer.
- the hue difference between (P1) and (P2) and between (Pn-1) and (Pn) is only small. Therefore, to assign a specific target hue reach, the uppermost pigmented layer (P2) or (Pn) must not be applied in a covering layer thickness.
- the uppermost pigmented layer (P2) or (Pn) can therefore have only a very small layer thickness below the hiding power, preferably a layer thickness of 40% to 70% of the layer thickness which would be required to achieve the hiding power, wherein, depending on the application method used However, higher layer thicknesses are possible, although it is not required by the hiding power and the color.
- the second pigmented layer when using transparent coating compositions, has only a layer thickness of 6 to 8 microns in the case of metallic coatings and of about 11 microns in the case of other solid colors.
- Layer (P2) or (Pn) preferably opaque or at least in a layer thickness of generally more than 70% of the layer thickness, which would be required to achieve the hiding power, must be applied.
- the resulting high layer thicknesses in turn can lead to problems with cookers or make the conversion of the application method required.
- the primer (G) and / or the pigmented coating (P) or the pigmented coating (P1) and / or (P2) and / or (Pn) can in addition to the UV absorbers of the invention (UV1) having an absorption maximum of at least 370 nm also contain other light stabilizers, in particular other (UV1) different UV absorbers (UV2) and / or sterically hindered amines (HALS) and / or Antioxi- dantien included.
- UV1 having an absorption maximum of at least 370 nm
- other light stabilizers in particular other (UV1) different UV absorbers (UV2) and / or sterically hindered amines (HALS) and / or Antioxi- dantien included.
- UV absorbers examples include UV absorbers which have an absorption maximum of less than 370 nm, preferably an absorption maximum of 280 nm to less than 370 nm.
- the known UV absorbers are suitable on the
- Hydroxy-phenyl-triazines e.g. 5-thio-substituted 2-hydroxy-phenyl-benztriazoles, 5-chloro-substituted 2-hydroxy-phenyl
- Benzotriazoles tris-aryl-s-triazines, e.g.
- Suitable UV absorbers are, for example, in EP-B-576 527, page 2, line 47, to page 4, line 56 and page 9, lines 26 to 46, the EP-B-682,680, page 3, line 33, to page 7, line 11, EP-A-1, 308,084, page 2, line 13, to page 16, line 45, and US-A-6,166,218, col 23, line 12, to column 25, line 23 described.
- Suitable UV absorbers having an absorption maximum of less than 370 nm are also commercially available, e.g. Tinuvin® 1130, Tinuvin® 109, Tinuvin® 171, Tinuvin® 384, Tinuvin® 326, Tinuvin® 328, Tinuvin® 320, Tinuvin® 234, Tinuvin® P, Tinuvin® 405, Tinuvin® 400, Tinuvin® R 796 and CGL 479 of the company Ciba Specialty Chemicals Holding AG Switzerland.
- Suitable light stabilizers based on sterically hindered amines are, for example, those described in EP-B-576 943, page 3, line 9, to page 5, line 18, EP-A-1 308 084, page 19, line 47, to page 20, line 22, as well as the light stabilizers described in EP-B-576 527 on page 9, lines 47 to 56.
- Suitable hindered amine light stabilizers are also commercially available, e.g. Tinuvin® 123, Tinuvin® 292, Tinuvin® 144 and Tinuvin® 152 from Ciba Spezialitätenchemie Holding AG Switzerland.
- antioxidants examples include alkylated monophenols, alkylthiomethylphenols, hydroquinones and alkylated hydroquinones, hydroxylated thiodiphenyl ethers, alkylidene bisphenols, hydroxybenzyl aromatic moieties, triazine moieties, esters of beta- (3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid , Esters of beta- (5-tert-butyl-4-hydroxy-3-methylphenyl) propionic acid, acylaminophenols and others, for example those described in EP-B-576 527 on page 7, line 24, to page 9, line 25, EP-A-1 308 084, page 16, line 55, to page 19, line 3, and US-A-6,166,218, column 21, line 37 to column 23, line 11, antioxidants.
- the primer (G) and / or the pigmented coating (P) and / or (P1) and / or (P2) and / or (Pn) preferably contains the or - in the case of a mixture of two or more UV absorbers - the UV radiation sorber (UV1) having an absorption maximum of at least 370 nm in an amount of 0.1 to 30.0% by weight, preferably 0.5 to 20.0% by weight and particularly preferably in an amount of 0.5 to 15.0% by weight, based in each case on the solids content of the primer (G) or the solids content of the pigmented coating composition.
- UV1 UV radiation sorber
- the primer (G) and / or the pigmented coating (P) and / or (P1) and / or (P2) and / or (Pn) preferably contains the further light stabilizers in an amount of from 0 to 20.0% by weight. %, preferably 0 to 12.0% by weight and particularly preferably in an amount of 0.1 to 10.0% by weight, in each case based on the solids content of the primer (G) or the solids content of the pigmented coating composition.
- the multicoat system For the production of the multicoat system according to the invention, all primers commonly used, in particular primers, which are usually used for coating metallic substrates, are suitable. If the multilayer coatings according to the invention are suitable for coating other substrates, such as e.g. of plastics used, the coating materials customary for the priming of these substrates are used.
- the primers used in particular for steel and similar metals are usually aqueous coating compositions having a solids content of generally from 10 to 25% by weight. They generally contain at least one binder, at least one crosslinking agent, optionally pigments and optionally further customary auxiliaries and additives. Preference is given to using electrophoretically depositable coating compositions, so-called electrodeposition paints, in particular cathodically depositable electrodeposition paints, as a primer. However, it is also suitable, for example, by means of the so-called coil coating method. brought primers. For substrates made of aluminum, aluminum oxide layers produced mostly by anodic oxidation are used as primers (G).
- the electrodeposition paints contain binders which carry ionic or ionic group-transferable substituents and groups capable of chemical crosslinking.
- the ionic groups may be anionic or anionic group-transferable groups, e.g. COOH groups, or cationic groups or groups convertible into cationic groups, e.g. Amino, ammonium, quaternary ammonium, phosphonium and / or sulphonium groups.
- Binders with basic groups, in particular nitrogen-containing basic groups, are preferably used. These groups may be quaternized or they may be treated with conventional neutralizing agents, e.g. organic monocarboxylic acids, e.g. Formic, acetic or lactic acid, converted into ionic groups.
- Suitable anodically depositable electrodeposition paints are known and described, for example, in DE-A-28 24 418. They usually contain self-crosslinking or externally crosslinking binders based on polyesters, epoxy resins, poly (meth) acrylates, maleate oils or
- Suitable cathodic electrodeposition coatings are likewise known and are described, for example, in EP-B 0241476, WO 91/09917, EP-B-0920480, EP-B 0961 797, WO2003 / 068418 and WO2004 / 018580.
- They usually contain self-crosslinking or externally crosslinking binders based on polyesters, epoxy resins, double-bonded epoxy resins or OH groups, poly (meth) acrylates, polyurethane resins or polybutadiene resins containing cationic groups such as primary, secondary or tertiary amino groups Acid neutralized, wear, as well as common crosslinkers, such as For example, triazine resins, blocked polyisocyanates, aminoplast resins, polyepoxide compounds or crosslinkers carrying transesterifiable groups or double bonds.
- the cathodic electrodeposition coatings described in EP-B-0961 797 are preferably used, which contain an aqueous binder dispersion based on ammonium group-containing epoxy resins, which are obtainable by
- Pigmented coatings (P), (P1), (P2) to (Pn) are Pigmented coatings (P), (P1), (P2) to (Pn)
- the pigmented coatings (P), (P1), (P2) to (Pn) used according to the invention may have been prepared using both aqueous and solventborne coating agents (B), which are generally curable physically or thermally and / or with actinic radiation ,
- the coating agents (B) usually contain
- one or more binders preferably one or more polyurethane resins and / or acrylate resins and / or polyester resins, more preferably at least one polyurethane resin, (III) optionally at least one crosslinking agent,
- V optionally the UV absorber (UV1) used according to the invention, which has an absorption maximum of at least 370 nm, and (VI) optionally one or more customary auxiliaries and additives.
- Suitable binders are the polyurethane resins, acrylate resins and polyester resins commonly used in basecoats in the automotive industry, wherein the properties and thus the suitability of the binder for the. In the expert known manner on the selection of the type and amount of the building components used for the preparation of these binders inventive method is controlled.
- Polyurethane resins are preferably used, if appropriate in combination with one or more polyacrylate resins and / or with one or more polyester resins.
- the polyurethane resins are obtained in a manner known to the skilled worker by reaction
- At least one polyol selected from the group consisting of polyester and polyether polyols, preferably having a number average molecular weight of from 400 to 5,000, and
- polyurethane resins used for aqueous coating agents, neutralization of the resulting reaction product.
- polyurethane resins are described for example in EP-B-228 003 and EP-B-574 417.
- Such polyurethane resins are obtained, for example, by using isocyanates commonly employed as the isocyanate component in the paint industry, e.g. Hexamethylene diisocyanate, octamethylene diisocyanate, decamethylene diisocyanate, dodecamethylene diisocyanate, tetradecamethylene diisocyanate, trimethylhexane diisocyanate, tetramethylhexane diisocyanate, isophorone diisocyanate, 2-isocyanatopropylcyclohexyl isocyanate, dicyclohexylmethane-2,4'-diisocyanate, dicyclohexylmethane-4,4'-diisocyanate, 1,4-or , 3-bis (isocyanatomethyl) cyclohexane, 1, 4- or 1, 3- or 1, 2-diisocyanatocyclohexane, 2,4- or 2,6-diisocyanato-1-
- chain extenders with hydroxyl or amino groups preference is given to using trimethylolpropane and diethanolamine.
- acrylated polyurethane resins which are known in the art are obtainable by polymerizing ethylenically unsaturated monomers in the presence of a polyurethane resin. It is possible to use polyurethane resins without double bonds and / or polyurethane resins with double bonds.
- binders used are acrylated polyurethane resins having pendant and / or terminal double bonds, in particular side and / or terminal ethenylarylene groups.
- the acrylated polyurethane resins having pendant and / or terminal double bonds can be obtained by reacting a polyurethane prepolymer (1-1) containing at least one free isocyanate group with a compound (I-2) having at least one ethylenically unsaturated double bond and one opposite NCO groups reactive group, in particular a hydroxyl group or an amino group having.
- the acrylated polyurethane resins with pendant and / or terminal double bonds can also be obtained by reacting a polyurethane prepolymer (11-1) which contains at least one NCO-reactive group, in particular at least one hydroxyl group or one amino group, with a compound ( II-2) having at least one ethylenically unsaturated double bond and one free isocyanate group.
- binders are graft copolymers which are obtainable by polymerization of olefinically unsaturated monomers in the presence of the acrylated polyurethane resins having pendant and / or terminal double bonds.
- graft copolymers which have a hydrophobic core of at least one copolymerized olefinically unsaturated monomer and a hydrophilic shell of at least one hydro- philen acrylated polyurethane used.
- graft copolymers which comprise a hydrophobic core of at least one hydrophobic acrylated polyurethane and a hydrophilic shell of at least one copolymerized olefinically unsaturated monomer are also suitable.
- Suitable acrylated polyurethane resins and graft copolymers prepared therefrom are described, for example, in WO01 / 25307, page 5, line 14, to page 45, line 4, and EP-B-787 159, page 2, line 27, to page 7, line 13, described.
- the polyurethane resins described may optionally be used in combination with one or more polyacrylate resins and / or with one or more polyester resins.
- Suitable polyester resins may be saturated or unsaturated, in particular saturated, and generally have a number-average molecular weight of from 400 to 5,000 and are described, for example, in EP-B-787 159, page 4, lines 26 to 53.
- the content of binder (B) in the binder is generally, in each case based on the solids content of the coating agent (B), 10 to 99, preferably 30 to 90% by weight.
- the content of the coating agent (B) of crosslinking agent is generally, in each case based on the solids content of the coating composition (B), 0 to 55, preferably 5 to 40% by weight.
- the pigmented coating compositions contain in particular free isocyanates or blocked isocyanates and / or amino resins.
- isocyanate in principle, those mentioned in the description of the polyurethane resins, usually in the paint industry isocyanates used, preferably TAGT and dimethylpyrazole-blocked trimeric hexamethylene diisocyanate and, in the case of the 2-component coating compositions, trimeric hexamethylene diisocyanate.
- Suitable blocking agents are all conventionally used blocking agents, such as the corresponding alcohols, amines, ketones, pyrazoles, inter alia, preferably blocking agents having a deblocking temperature of less than 130 ° C.
- aminoplast resins commonly used in the paint industry are suitable, it being possible to control the properties of the pigmented coating compositions via the reactivity of the aminoplast resins.
- butanol etherified aminoplast resins such as the commercially available Cymel ® 203, are used.
- the pigmented coating composition may optionally contain crosslinked microparticles, as described, for example, in EP-A-543 817. They can be used in particular for controlling the course and the Abdunst s.
- the pigmented coating agent also contains at least one pigment.
- the pigment is preferably selected from the group consisting of organic and inorganic, coloring, effect-imparting, coloring and effect-imparting, magnetically shielding, electrically conductive, corrosion-inhibiting, fluorescent and phosphorescent pigments.
- the color and / or effect pigments are used.
- Suitable effect pigments which may also be coloring
- metal flake pigments such as commercially available aluminum bronzes, aluminum chromates chromated according to DE 36 36 183 A1, and commercial stainless steel bronzes
- non-metallic effect pigments such as pearlescent or interference pigments, platelet-shaped Effect pigments based on iron oxide or liquid crystalline effect pigments.
- non-metallic effect pigments such as pearlescent or interference pigments, platelet-shaped Effect pigments based on iron oxide or liquid crystalline effect pigments.
- the content of the coating agent (B) in the pigments can vary widely and depends primarily on the depth of the dye and / or the intensity of the effect to be adjusted and on the dispersibility of the pigments in the coating compositions (B).
- the pigment content in the case of uncoats, in each case based on the solids content of the coating composition (B), is preferably 0.5 to 70, preferably 1.0 to 60% by weight.
- the pigment content in the case of metallic paints in each case based on the solids content of the coating composition (B), is preferably 0.5 to 40, preferably 0.5 to 35, particularly preferably 1 to 30% by weight.
- the coating composition (B) or (B 1) to (Bn) conventional and known auxiliaries and additives, such as organic and inorganic, transparent and opaque fillers, and nanoparticles and other customary auxiliaries and additives in conventional amounts, preferably 0 to 40% by weight, based on the coating composition (B).
- auxiliaries and additives such as organic and inorganic, transparent and opaque fillers, and nanoparticles and other customary auxiliaries and additives in conventional amounts, preferably 0 to 40% by weight, based on the coating composition (B).
- the layer (P1) may contain further additives, in particular additives for achieving filler properties, such as, for example, elastomeric particles, talcum and the like, compared to the following pigmented layers (P2) to (Pn).
- the pigmented coating composition (s) preferably contains the UV absorber (UV1) used according to the invention, which has an absorption maximum of at least 370 nm.
- all commonly used transparent coating compositions are suitable, such as, for example, commonly used aqueous or solvent-containing transparent coating compositions which can be formulated both as one-component and as two- or multi-component coating compositions. Also suitable are powder slurry clearcoats.
- the transparent coating agents used can be curable thermally and / or by means of radiation, in particular by means of UV radiation.
- the transparent coating compositions usually contain at least one binder having functional groups and at least one crosslinker having a functionality complementary to the functional groups of the binder.
- Such complementary functionalities are in particular carboxyl / epoxy, amine or thiol or hydroxyl / blocked or free isocyanate or alkoxylated
- Amino groups or transesterifiable groups (meth) acryloyl / CH-acid or amine or hydroxyl or thiol, carbamate / alkoxylated amino groups and (meth) acryloyl / (meth) acryloyl.
- transparent coating compositions based on polyurethane resins and / or polyacrylate resins and / or polyester resins, preferably with hydroxyl, amino, carbamate, carboxyl, (meth) acryloyl and / or thiol groups in combination with the corresponding crosslinkers, in particular in combination with isocyanates, aminoplast resins, anhydrides and others
- the transparent coating compositions contain conventional auxiliaries and additives, such as, for example, catalysts for crosslinking, defoamers, adhesion promoters, additives for improving substrate wetting, additives for improving surface smoothness, matting agents, light stabilizers, preferably the UV absorbers described above a maximum absorption below 370 nm and / or HALS, corrosion inhibitors, biocides,
- the multi-layer coating according to the invention can be applied to any desired substrates.
- the substrates can be constructed from the most varied materials and combinations of materials. Preferably, they consist of metals, plastics, glass, wood, leather, textile, ceramic or natural stone, preferably of metals, plastics and glass, in particular of metals and plastics.
- the primer is applied by the usual methods, such as dipping, knife coating, spraying, rolling or the like, but in particular by means of electrocoating.
- the primer is preferably at least partially or completely cured before the pigmented coating composition (s) are applied.
- the curing of the primer is usually carried out by heating to a temperature between 80 and 170 0 C for a time of 3 to 30 min.
- the optionally applied transparent coating composition (T), like the pigmented coating composition (B), is prepared by conventional methods for the application of liquid coating compositions, such as dipping, knife coating, spraying, rolling or the like, but in particular by means of spraying applied.
- the lower pigmented coating agent or the lower pigmented coating composition (Bn-1) is advantageously produced by means of the electrostatic spray application (ESTA), preferably with high-rotation bells, and applied the upper pigmented coating agent (B2) or (Bn) using the pneumatic spray application.
- ESA electrostatic spray application
- the lower pigmented coating agent (B1) or all lower layers is advantageously immediately immediately coated with the next pigmented coating agent (B2) or (B3), etc. to (Bn), without intervening Application of the individual pigmented coating medium is dried between. It can therefore, in contrast to the conventional methods in the painting line, be directed to a separate drying station, such as e.g. a blast tunnel, be waived.
- the pigmented coating (P) or the coating material is or will be preferred pigmented coatings (P1) to (Pn), briefly flashed or briefly dried, generally at a temperature between 30 and less than 100 0 C for a period of 1 to 15 min. Thereafter, the transparent coating agent is applied.
- the applied layers (P1), (P2) to (Pn) and optionally (K) are thermally cured together. If the transparent coating agent (T) is also curable with actinic radiation, a post-curing by irradiation with actinic radiation is carried out. If the optionally used primer (G) is not yet cured, it is cured in this process step with.
- Curing can take place after a certain rest period. It may have a duration of 30 seconds to 2 hours, preferably 1 minute to 1 hour and especially 1 to 45 minutes.
- the rest period serves, for example, for the course and degassing of the paint layers or for the evaporation of volatile constituents.
- the rest period may be ⁇ 10 g water / kg air through the use of elevated temperatures up to 9O 0 C and / or by a reduced atmospheric humidity and / or be shortened, this provided no damage or alteration to the coating films, such as premature complete crosslinking ,
- the curing is usually carried out at a temperature between 90 and 160 0 C for a time of 15 to 90 min.
- the primer (G) generally has a dry film thickness of 8 to 60 .mu.m, preferably 10 to 40 .mu.m and, if present, the transparent coating (K) generally has a dry film thickness of 8 to 80 .mu.m, preferably 10 to 70 microns, in particular 10 to 60 microns, on.
- the coating (P) In the case of multicoat systems with only one pigmented coating (P), the coating (P) generally has a dry film thickness of from 6 to 100 .mu.m, preferably from 8 to 80 .mu.m, and in particular from 10 to 60 .mu.m.
- the pigmented coating (P1) generally has a dry film thickness of from 6 to 40 ⁇ m, preferably from 6 to 30 ⁇ m, in particular from 8 to 25 ⁇ m, and / or the pigmented coating (P2) has a dry film thickness of from 3 to 40 ⁇ m, preferably from 3 to 30 ⁇ m, in particular from 3 to 20 ⁇ m.
- the second basecoat layer may also have only a very small layer thickness below the hiding power, preferably a layer thickness of 40 to 70% of the layer thickness which would be required to achieve the hiding power. It is therefore possible, for example according to the invention, that when using transparent coating compositions, the second base coat layer only has a layer thickness of 6 to 8 microns in the case of Metalliclackmaschineen and of about 11 microns in the case of other uni-coatings, although depending on the application method used higher layer thicknesses are possible, although it is not required by hiding power and coloring.
- the dry film thickness of the pigmented coating (P) or the pigmented coating is generally the same Coatings (P1) and (P2) lower than when dispensing with the transparent coating (K).
- the pigmented coating (P1) preferably has a dry film thickness of from 6 to 25 ⁇ m, preferably from 8 to 16 ⁇ m, and / or the pigmented coating (P2) has a dry film thickness of from 3 to 20 ⁇ m, preferably from 3 to 10 ⁇ m , on.
- the multicoat paint systems according to the invention are used in particular in the field of automotive OEM finishing, but also in the field of commercial vehicle and automotive refinish paints, specifically for the coating of motor vehicle bodies or of bodywork interior components or exterior bodywork components. But they are also suitable for other areas, such as for the coating of components for ship and aircraft or components for household and electrical appliances or parts thereof.
- the pigment paste PP1 is obtained in that according to Table 1 below, the polyurethane dispersion according to EP-B-787 159, page 8, polyurethane dispersion B submitted and with rapid stirring polypropylene glycol, pigment Paliogenblau L 6482.
- Deionized water and a neutralization solution (dimethylethanolamine 10% in Water) are added.
- the stirring time is one hour.
- the mixture is ground with a commercial laboratory grinder until the fineness measured according to Hegman ⁇ 12 microns.
- the neutralization solution (dimethyl ethanolamine 10% in water) is adjusted to a pH of 7.8-8.2.
- the pigment paste PP2 is obtained in that according to Table 2 below, the polyurethane dispersion according to EP-B-787 159, page 8, polyurethane dispersion B, and the polyester according to EP-B-787 159, page 8, polyester resin solution A, and with rapid stirring Polypropylene glycol, butyl diglycol, pigment Russ FW2, deionized water and a neutralization solution (dimethylethanolamine 10% in water) are added. The stirring time is one hour. After stirring, the mixture is ground with a commercial laboratory grinder until the fineness measured according to Hegman ⁇ 12 microns. Finally, the neutralization solution (dimethylethanolamine 10% in water) is adjusted to a pH of 7.8-8.2.
- the pigment paste PP3 is obtained in that according to Table 3 below the polyurethane dispersion according to EP-B-787 159, page 8, polyurethane dispersion B, and with rapid stirring polypropylene glycol, butyl diglycol, pigment hostapermrosa E, deionized water and a neutralization solution (dimethylethanolamine 10%). in water).
- the stirring time is one hour.
- the mixture is ground with a commercial laboratory grinder until the fineness measured according to Hegman ⁇ 12 microns.
- the basecoat with the neutralization solution (dimethylethanolamine 10% in water) is adjusted to a pH of 7.8-8.2.
- nitrosylsulfuric acid (40% in sulfuric acid; 14.0g, 44.1 mmol) is added slowly at 15 0 C to a stirred suspension of 4-amino-5- bromophtalimid (95%, 10.7 g, 39.9 mmol) in acetic acid (200 mL). During the addition, the temperature is maintained between 15 ° C and 17 ° C by means of an ice bath. After the addition is complete (45 minutes), stirring is continued for 2 hours.
- reaction mixture is then transferred to a dropping funnel and slowly added at 15 0 C to a stirred solution of 2-cumyl-4-t-octylphenol (95%; 13.7g, 40.1 mmol) in methanol / m-xylene (85/15 parts by volume; 200ml) contains NaOH Microprills (1.8g, 45.0mmol) and sodium acetate (13.1g, 159.7mmol).
- the temperature is determined by means of an isopro- panol - dry ice bath maintained between -15 0 C and -9 ° C.
- the pH is measured by means of an electrode and kept at 5 by addition of NaOH (30% in water, total 250 ml).
- Component 1b as a yellow solid which is filtered off and dried (8g). The filtrate is evaporated and the residue crystallized from hexane and provides another 3.5 g of component 1 b. Yield 11.5g (21.9mmol, 75.3%). Melting point: 198 - 199 0 C.
- polyester resin solution A 1.3 parts of a polyester resin solution according to EP-B-787 159, page 8, polyester resin solution A, 3.3 parts of butylglycol,
- Polyurethane dispersion B 5% by weight of polyester and 10.1% by weight
- the waterborne basecoat thus prepared is adjusted to a viscosity of 80-100mPas at 1000 s-1 with deionized water and to a pH of 7.7-8.0 with a 10% aqueous dimethylethanolamine solution.
- aqueous metallic basecoat 1 is added prior to adjusting with deionized water and aqueous dimethyl ethanolamine solution with 2%, based on the total weight of the basecoat 2, Tinuvin® 1130 Ciba Specialty Chemicals AG AG Switzerland.
- aqueous metallic basecoat 1 is before adjusting with deionized water and aqueous dimethyl ethanolamine solution with 2%, based on the total weight of the basecoat 2 of the invention, in Example 1.2. described UV absorber 1 b added.
- waterborne base coats 1 to 3 with a dry film thickness of 12 ⁇ m were applied to test panels consisting of a steel substrate (body panel) coated with a conventional and well-known cathodically deposited and baked electrocoating (CathoGuard® 500 of the BASF Coatings, (dry film thickness 20 .mu.m), 10 min at 80 0 C pre-dried, cooled down and with a commercial two-component polyurethane clear coat (EverGloss BASF Coatings AG, dry film thickness 35 ⁇ m) overlayed.
- CathoGuard® 500 of the BASF Coatings dry film thickness 20 .mu.m
- EverGloss BASF Coatings AG dry film thickness 35 ⁇ m
- the multicoat system 3 according to the invention with the aqueous basecoat material 3 according to the invention is the only one which meets the test conditions and shows no damage whatsoever.
- a steel substrate (body panel) was provided with a conventional and well-known cathodically deposited and baked electrodeposition coating (Cathoguard® 500 from BASF Coatings, dry film thickness of 20 ⁇ m).
- the aqueous basecoat materials 1 were applied to the thus obtained electrodeposition coating - applied 3 (dry film thickness of 10 .mu.m), 2 flashed min at room temperature and covered with a second coating of water-based varnish 1 (dry film thickness of 5 microns), 10 pre-dried min at 8O 0 C and cooled.
- a commercially available two-component polyurethane clearcoat (EverGloss® from BASF Coatings AG) (dry film thickness 35 ⁇ m).
- the waterborne basecoat layers 4 or 5 or 6 obtained and the clearcoat film were baked at 130 ° C. for 30 minutes.
- the aqueous basecoat 6 according to the invention is the only one which meets the test conditions and shows no damage whatsoever.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008501185A JP5091107B2 (ja) | 2005-03-16 | 2006-03-03 | 多層塗膜、その製法及び自動車工業におけるその使用 |
| DE502006001444T DE502006001444D1 (de) | 2005-03-16 | 2006-03-03 | Mehrschichtlackierungen, verfahren zu ihrer herstellung und deren verwendung im automobilbau |
| EP06707394A EP1861466B8 (de) | 2005-03-16 | 2006-03-03 | Mehrschichtlackierungen, verfahren zu ihrer herstellung und deren verwendung im automobilbau |
| KR1020077023597A KR101245724B1 (ko) | 2005-03-16 | 2006-03-03 | 다층 코팅, 이를 제조하는 방법 및 자동차 산업에서 이의용도 |
| CN200680011603.5A CN101155881B (zh) | 2005-03-16 | 2006-03-03 | 多层涂装体系,其制备方法及其在汽车制造中的用途 |
| US11/908,848 US8535795B2 (en) | 2005-03-16 | 2006-03-03 | Multi-layered coatings, method for the production thereof, and use thereof in the car industry |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005012056A DE102005012056A1 (de) | 2005-03-16 | 2005-03-16 | Mehrschichtlackierungen, Verfahren zu ihrer Herstellung und deren Verwendung im Automobilbau |
| DE102005012056.3 | 2005-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006097201A1 true WO2006097201A1 (de) | 2006-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2006/001929 Ceased WO2006097201A1 (de) | 2005-03-16 | 2006-03-03 | Mehrschichtlackierungen, verfahren zu ihrer herstellung und deren verwendung im automobilbau |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US8535795B2 (de) |
| EP (1) | EP1861466B8 (de) |
| JP (1) | JP5091107B2 (de) |
| KR (1) | KR101245724B1 (de) |
| CN (1) | CN101155881B (de) |
| AT (1) | ATE406417T1 (de) |
| DE (2) | DE102005012056A1 (de) |
| WO (1) | WO2006097201A1 (de) |
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| CN105793362A (zh) * | 2013-12-18 | 2016-07-20 | 横滨橡胶株式会社 | 紫外线固化型树脂组合物以及叠层体 |
| DE102014009945A1 (de) * | 2014-07-04 | 2016-01-07 | Dürr Systems GmbH | Lackierverfahren und Lackieranlage zur Dekorlackierung |
| US10052655B2 (en) * | 2014-12-17 | 2018-08-21 | Whirlpool Corporation | Transparent tinted coating for appliance exterior panels to allow for tinted surface patterns and a process for application of coating |
| AU2016271598B2 (en) * | 2015-05-29 | 2018-10-25 | Prc-Desoto International, Inc. | Curable film-forming compositions containing lithium silicates as corrosion inhibitors and multilayer coated metal substrates |
| US11118064B2 (en) | 2016-11-30 | 2021-09-14 | Basf Se | Photocurable hardcoat compositions, methods, and articles derived therefrom |
| KR102365792B1 (ko) * | 2018-08-30 | 2022-02-21 | 삼성에스디아이 주식회사 | 유기발광소자 봉지용 조성물 및 이로부터 제조된 유기층을 포함하는 유기발광소자 표시장치 |
| EP3941996B1 (de) * | 2019-03-18 | 2023-12-13 | Merck Patent GmbH | Polymerisierbares flüssigkristallmaterial und polymerisierter flüssigkristallfilm |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0543393A1 (de) * | 1991-11-21 | 1993-05-26 | Mitsubishi Rayon Co., Ltd | Beschichtungszusammensetzung |
| US6344505B1 (en) * | 1999-11-11 | 2002-02-05 | Cytec Industries Inc. | Mono- and bis-benzotriazolyldihydroxybiaryl UV absorbers |
Family Cites Families (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT352842B (de) | 1977-06-06 | 1979-10-10 | Herberts & Co Gmbh | Waesseriges ueberzugsmittel, insbesondere fuer die elektro-tauchlackierung, sowie verfahren zu seiner herstellung |
| DE3518770A1 (de) | 1985-05-24 | 1986-11-27 | BASF Lacke + Farben AG, 4400 Münster | Wasserverduennbare bindemittel fuer kationische elektrotauchlacke und verfahren zu ihrer herstellung |
| DE3545618A1 (de) | 1985-12-21 | 1987-06-25 | Basf Lacke & Farben | Wasserverduennbares ueberzugsmittel zur herstellung der basisschicht eines mehrschichtueberzuges |
| DE3636183A1 (de) | 1986-08-27 | 1988-03-03 | Basf Lacke & Farben | Wasserverduennbare beschichtungszusammensetzungen |
| DE3942766A1 (de) | 1989-12-23 | 1991-06-27 | Basf Lacke & Farben | Verfahren zum beschichten elektrisch leitfaehiger substrate, waessriger lack, epoxid-aminaddukt und verwendung des epoxid-aminadduktes als reibharz zur herstellung von pigmentpasten |
| DE4006832A1 (de) | 1990-03-05 | 1991-09-12 | Basf Lacke & Farben | Verfahren zur herstellung einer mehrschichtigen lackierung und waessriger lack |
| JP2846091B2 (ja) * | 1990-09-25 | 1999-01-13 | オリヱント化学工業株式会社 | インドール系化合物およびその用途 |
| US5278314A (en) | 1991-02-12 | 1994-01-11 | Ciba-Geigy Corporation | 5-thio-substituted benzotriazole UV-absorbers |
| US5280124A (en) * | 1991-02-12 | 1994-01-18 | Ciba-Geigy Corporation | 5-sulfonyl-substituted benzotriazole UV-absorbers |
| DE4107136A1 (de) | 1991-03-06 | 1992-09-10 | Basf Lacke & Farben | Verfahren zur herstellung einer mehrschichtigen, schuetzenden und/oder dekorativen lackierung |
| CA2098453A1 (en) | 1992-06-30 | 1993-12-31 | Kevin M. Schock | Electrocoat primer layer containing regenerative radical scavenger |
| US5354794A (en) | 1993-02-03 | 1994-10-11 | Ciba-Geigy Corporation | Electro coat/base coat/clear coat finishes stabilized with S-triazine UV absorbers |
| JP3366697B2 (ja) * | 1993-08-27 | 2003-01-14 | オリヱント化学工業株式会社 | 長波長紫外線吸収剤およびその製造方法 |
| US5556973A (en) * | 1994-07-27 | 1996-09-17 | Ciba-Geigy Corporation | Red-shifted tris-aryl-s-triazines and compositions stabilized therewith |
| DE4437535A1 (de) | 1994-10-20 | 1996-04-25 | Basf Lacke & Farben | Polyurethanmodifziertes Polyacrylat |
| DE4438504A1 (de) | 1994-10-28 | 1996-05-02 | Basf Lacke & Farben | Lackschichtformulierung zur Verwendung in wässrigen Mehrschichtlacksystemen |
| CA2219303A1 (en) | 1995-04-27 | 1996-10-31 | Masafumi Kume | Method for formation of multi-layer coating film |
| DE19633769A1 (de) | 1996-08-22 | 1998-02-26 | Basf Lacke & Farben | Dispersion zur Herstellung eines elektrophoretisch abscheidbaren Tauchlackes |
| US6166218A (en) * | 1996-11-07 | 2000-12-26 | Ciba Specialty Chemicals Corporation | Benzotriazole UV absorbers having enhanced durability |
| DE19703869A1 (de) | 1997-02-03 | 1998-08-06 | Basf Coatings Ag | Wäßrige Bindemitteldispersion für kationische Elektrotauchlacke |
| JP3104866B2 (ja) * | 1997-09-12 | 2000-10-30 | 株式会社小糸製作所 | 表面塗装された車両用樹脂成形品 |
| KR100561603B1 (ko) * | 1998-07-10 | 2006-03-16 | 오츠카 가가쿠 홀딩스 가부시키가이샤 | 내후성 조성물, 도료 및 성형품 |
| DE19948004B4 (de) | 1999-10-06 | 2006-05-11 | Basf Coatings Ag | Polyurethane und Pfropfmischpolymerisate auf Polyurethanbasis sowie ihre Verwendung zur Herstellung von Beschichtungsstoffen, Klebstoffen und Dichtungsmassen |
| US7531074B2 (en) | 2002-02-13 | 2009-05-12 | Ppg Industries Ohio, Inc. | Coating line and process for forming a multilayer composite coating on a substrate |
| DE10236350A1 (de) | 2002-08-08 | 2004-02-19 | Basf Coatings Ag | Bismutverbindungen enthaltende Elektrotauchlacke (ETL) |
| EP1308084A1 (de) | 2002-10-02 | 2003-05-07 | Ciba SC Holding AG | Synergistisch wirksame UV-Absorbercombination |
| DE102004028368A1 (de) | 2003-08-27 | 2005-03-24 | Basf Coatings Aktiengesellschaft | Verfahren zur Herstellung farb- und/oder effektgebender Mehrschichtlackierungen |
| EP1658146B1 (de) * | 2003-08-27 | 2013-04-17 | BASF Coatings GmbH | Verfahren zur herstellung farb- und/oder effektgebender mehrschichtlackierungen |
| US7695643B2 (en) * | 2005-02-02 | 2010-04-13 | Ciba Specialty Chemicals Corporation | Long wavelength shifted benzotriazole UV-absorbers and their use |
-
2005
- 2005-03-16 DE DE102005012056A patent/DE102005012056A1/de not_active Ceased
-
2006
- 2006-03-03 EP EP06707394A patent/EP1861466B8/de not_active Ceased
- 2006-03-03 WO PCT/EP2006/001929 patent/WO2006097201A1/de not_active Ceased
- 2006-03-03 CN CN200680011603.5A patent/CN101155881B/zh not_active Expired - Fee Related
- 2006-03-03 JP JP2008501185A patent/JP5091107B2/ja not_active Expired - Fee Related
- 2006-03-03 KR KR1020077023597A patent/KR101245724B1/ko not_active Expired - Fee Related
- 2006-03-03 AT AT06707394T patent/ATE406417T1/de not_active IP Right Cessation
- 2006-03-03 US US11/908,848 patent/US8535795B2/en not_active Expired - Fee Related
- 2006-03-03 DE DE502006001444T patent/DE502006001444D1/de not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0543393A1 (de) * | 1991-11-21 | 1993-05-26 | Mitsubishi Rayon Co., Ltd | Beschichtungszusammensetzung |
| US6344505B1 (en) * | 1999-11-11 | 2002-02-05 | Cytec Industries Inc. | Mono- and bis-benzotriazolyldihydroxybiaryl UV absorbers |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008102822A1 (ja) | 2007-02-20 | 2008-08-28 | Fujifilm Corporation | 紫外線吸収剤を含む高分子材料 |
| WO2008123504A1 (ja) | 2007-03-30 | 2008-10-16 | Fujifilm Corporation | 紫外線吸収剤組成物 |
| WO2009022736A1 (ja) | 2007-08-16 | 2009-02-19 | Fujifilm Corporation | ヘテロ環化合物、紫外線吸収剤及びこれを含む組成物 |
| WO2009093541A1 (ja) * | 2008-01-24 | 2009-07-30 | Nippon Light Metal Company, Ltd. | 金属塗装材 |
| JP2009172511A (ja) * | 2008-01-24 | 2009-08-06 | Nippon Light Metal Co Ltd | 金属塗装材 |
| CN101932387A (zh) * | 2008-01-24 | 2010-12-29 | 日本轻金属株式会社 | 金属涂装材料 |
| CN101932387B (zh) * | 2008-01-24 | 2014-09-03 | 日本轻金属株式会社 | 金属涂装材料 |
| WO2009123141A1 (ja) | 2008-03-31 | 2009-10-08 | 富士フイルム株式会社 | 紫外線吸収剤組成物 |
| WO2009123142A1 (ja) | 2008-03-31 | 2009-10-08 | 富士フイルム株式会社 | 紫外線吸収剤組成物 |
| WO2009136624A1 (ja) | 2008-05-09 | 2009-11-12 | 富士フイルム株式会社 | 紫外線吸収剤組成物 |
| US20100273004A1 (en) * | 2009-04-24 | 2010-10-28 | Mazda Motor Corporation | Multi-layer coating film structure |
| US10081738B2 (en) | 2012-12-03 | 2018-09-25 | Basf Coatings Gmbh | Multicoat effect and/or color paint system and method for producing it, and its use |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070116638A (ko) | 2007-12-10 |
| JP2008536659A (ja) | 2008-09-11 |
| EP1861466A1 (de) | 2007-12-05 |
| JP5091107B2 (ja) | 2012-12-05 |
| DE502006001444D1 (de) | 2008-10-09 |
| EP1861466B8 (de) | 2008-11-26 |
| KR101245724B1 (ko) | 2013-03-26 |
| CN101155881A (zh) | 2008-04-02 |
| EP1861466B1 (de) | 2008-08-27 |
| US20090317629A1 (en) | 2009-12-24 |
| ATE406417T1 (de) | 2008-09-15 |
| US8535795B2 (en) | 2013-09-17 |
| DE102005012056A1 (de) | 2006-09-28 |
| CN101155881B (zh) | 2010-09-29 |
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