WO2007057200A1 - Melanges aqueux contenant des pigments a effet metallique, physiquement, thermiquement et physiquement-thermiquement durcissables, leur procede de production et leur utilisation - Google Patents

Melanges aqueux contenant des pigments a effet metallique, physiquement, thermiquement et physiquement-thermiquement durcissables, leur procede de production et leur utilisation Download PDF

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Publication number
WO2007057200A1
WO2007057200A1 PCT/EP2006/011052 EP2006011052W WO2007057200A1 WO 2007057200 A1 WO2007057200 A1 WO 2007057200A1 EP 2006011052 W EP2006011052 W EP 2006011052W WO 2007057200 A1 WO2007057200 A1 WO 2007057200A1
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WIPO (PCT)
Prior art keywords
physically
thermally
effect
pigment
mixtures according
Prior art date
Application number
PCT/EP2006/011052
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German (de)
English (en)
Inventor
Egon Wegner
Stephan Schwarte
Peter Sonntag
Harry Libutzki
Norbert LÖW
Original Assignee
Basf Coatings Ag
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Application filed by Basf Coatings Ag filed Critical Basf Coatings Ag
Publication of WO2007057200A1 publication Critical patent/WO2007057200A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/0015—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/62—Metallic pigments or fillers
    • C09C1/64—Aluminium
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/62—Metallic pigments or fillers
    • C09C1/64—Aluminium
    • C09C1/642—Aluminium treated with inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D17/00—Pigment pastes, e.g. for mixing in paints
    • C09D17/001—Pigment pastes, e.g. for mixing in paints in aqueous medium
    • 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
    • C09D5/36—Pearl essence, e.g. coatings containing platelet-like pigments for pearl lustre
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C2220/00—Methods of preparing the interference pigments
    • C09C2220/20—PVD, CVD methods or coating in a gas-phase using a fluidized bed

Definitions

  • the present invention relates to novel, physically, thermally and physically and thermally curable, metallic effect-containing, aqueous mixtures.
  • the present invention relates to a novel process for the preparation of physically, thermally and physically and thermally curable, metallic effect-containing, aqueous mixtures.
  • the present invention relates to the use of new, physically, thermally and physically and thermally curable, metallic effect-containing, aqueous mixtures as well as produced by the new process physically, thermally and physically and thermally curable, metal effect pigments containing aqueous mixtures, especially as coating materials , Adhesives and sealants for the production of coatings, adhesives and seals.
  • the known aqueous basecoats are easy to prepare, stable on storage and transportable. After long shearing, as can take place in particular in ring lines of paint shops, they show no deposition of metallic effect pigments. They show a very good application behavior and a very good course.
  • the corresponding known effect-imparting and color and effect basecoats have an isotropic pigment distribution and a very good overall appearance (Appearance) and are free of paint defects, such as light-dark shades (clouds) and specks.
  • Aqueous coating materials based on polyacrylates and polyesters as binders and aminoplast resins as crosslinking agents which contain a platelet-shaped aluminum effect pigment prepared by PVD processes are known (cf., for example, "Preparatory formulation stoving enamel with metalure W 2001; REZ.-NR: 50-09026; DATE: 09.03.99 / cs ", Eckart-Werke, Güntersthal plant, D-91235 Velden), however, they still can not meet the requirements.
  • the coating materials are said to be outstandingly suitable as aqueous basecoats for the production of effecting and color and effect basecoats of multicoat paint systems, in particular by the wet-on-wet method. They should show an excellent application behavior and an excellent course.
  • the effect-imparting and dye-producing and effecting basecoats should also have comparatively thin layers and comparatively low metallic effect pigment concentrations, a high hiding power, an excellent intercoat adhesion, a particularly high resistance to condensation, an isotropic pigment distribution, a very pronounced light-dark behavior (metallic flop), show a very high metallic brilliance and a very high gloss. They should be free of paint defects, such as light-dark Shades (clouds) and specks, his. Overall, they should even have a chrome-like mirror effect and, if they are also color, have a particularly elegant, effective color effect with low sparkle effect (glitter effect).
  • At least one polyurethane selected from the group consisting of physically curable, thermally self-crosslinking and / or thermally externally crosslinking, saturated, unsaturated and / or grafted with olefinically unsaturated compounds, ionically and / or nonionically stabilized polyurethanes, as a binder and
  • the coating materials were outstandingly suitable as water-based paints for the production of effecting and color and effect basecoats of multicoat paint systems, in particular by the wet-on-wet method. They showed an excellent application behavior and an excellent course.
  • the effect-imparting and color and effect basecoats also showed comparatively thin layers and comparatively low metallic effect pigment concentrations, a high hiding power, an excellent intercoat adhesion, a particularly high resistance to condensation, an isotropic pigment distribution, a very pronounced light-dark behavior (metallic flop), a very high metallic brilliance and a very high gloss. They were free of paint defects, such as light-dark shades (clouds) and specks. Overall, they even showed a chrome-like mirror effect and had, if they were also color giving, a particularly elegant, effective color effect with little sparkle effect (glitter effect).
  • the mixtures according to the invention comprise at least one, in particular one, polyurethane (A) as binder.
  • the polyurethane (A) is selected from the group consisting of physically curable, thermally self-crosslinking and / or thermally foreign-crosslinking, saturated, unsaturated and / or grafted with olefinic unsaturated compounds, ionically and / or nonionically stabilized polyurethanes selected.
  • the polyurethane (A) is thermally externally crosslinking.
  • the thermal crosslinking or curing can still be supported by the physical curing of the polyurethane (A).
  • the polyurethane (A) is grafted with olefinically unsaturated compounds.
  • An unsaturated, preferably olefinically unsaturated, polyurethane (A) is particularly preferably used as the graft base.
  • the olefinically unsaturated polyurethane (A) contains terminal and lateral, in particular lateral, olefinically unsaturated groups.
  • the polyurethane (A) is ionic, in particular anionic, stabilized. Above all, carboxylate groups are used for this purpose.
  • the anionically stabilized, grafted with olefinic unsaturated compounds, olefinic unsaturated polyurethanes (A) of DE 199 48 004 A1 are used.
  • the content of the novel mixtures of the polyurethanes (A) can vary very widely and depends on the requirements of the individual case. Preferably, the content is adjusted so that a pigment / binder ratio of 0.05 to 1 and in particular 0.05 to 0.5 results in the mixtures according to the invention.
  • the mixtures according to the invention contain at least one, in particular a platelet-shaped metallic effect pigment (B) produced by PVD processes.
  • B platelet-shaped metallic effect pigment
  • the leaflet-shaped metallic effect pigment (B) is an aluminum effect pigment.
  • PVD processes are vacuum coating processes for producing thin layers, in which the metal, in particular aluminum, is converted into the gas phase by purely physical methods in order to be deposited on the substrate (see Römpp Online, Georg Thieme Verlag, 2004, “PVD Procedure”).
  • the metal is evaporated in a high vacuum on a temporary substrate, whereby a metal layer (B 1 ) results.
  • the temporary substrate is a plastic film.
  • the temporary substrate comprises an anti-adhesion layer or release layer on which the metal layer (B ") is deposited.
  • the metal layer (B ') is removed from the temporary substrate by stripping, preferably with a non-polar organic solvent, after which the resulting metal flakes (B ") are sheared, preferably by stirring the dispersion containing them, whereby the platelet-shaped metallic effect pigment (B ) results.
  • the platelet-shaped metallic effect pigment (B) has a thickness of 20 to 80 and in particular 30 to 50 nm.
  • the platelet-shaped metallic effect pigment (B) has a maximum particle size of 20 to 50 and in particular 25 to 45 microns.
  • the flake-form metallic effect pigment (B) particularly preferably has a customary and known passivation layer, such as, for example, a silicon dioxide layer provided with functional anchor groups or an organophosphorus layer.
  • leaflet-shaped metallic effect pigments (B), in particular the aluminum effect pigments (B), are products known per se and are marketed, for example, by Eckart under the trademarks Metalure® or Hydroshine®.
  • the content of the inventive mixtures of the platelet-shaped metallic effect pigments (B) can vary very widely and depends on the requirements of the individual case. Preferably, the content is adjusted so that a pigment / binder ratio of 0.05 to 1 and in particular 0.05 to 0.5 results in the mixtures according to the invention.
  • the mixtures according to the invention are aqueous, d. that is, they contain water in which the above-described components (A) and (B) are dispersed or emulsified.
  • the water content and thus the solids content of the mixtures according to the invention can likewise vary very widely and also depend on the requirements of the individual case and in particular on the dispersibility of the above-described constituent (A) and on whether further additives (C) are present.
  • the solids content is from 5 to 50, preferably 5 to 40 and in particular 5 to 30 wt .-%, each based on a mixture according to the invention.
  • the mixtures according to the invention may also contain at least one further additive (C).
  • the additive (C) is a crosslinking agent.
  • suitable crosslinking agents (C) are known from German patent application DE 199 48 004 A1, page 14, line 32, to page 16, line 14. Preferably, they are used in the amounts indicated there.
  • the mixtures according to the invention may additionally contain at least one pigment, in particular coloring pigment (C), which differs from the platelet-shaped metallic effect pigments (B).
  • suitable pigments (C), in particular coloring pigments (C) are known from the German patent applications
  • the content of the inventive mixtures of the coloring pigments (C) can vary very widely and depends on the requirements of the individual case.
  • the mixtures according to the invention may contain at least one customary and known coating additive in effective amounts as additive (C).
  • additive C
  • suitable paint additives (C) are known from German patent application DE 199 48 004 A1, page 16, line 15, to page 17, line 5.
  • Components (A) and (B) and optionally (C) in an aqueous medium, in particular in water, dispersed, after which the resulting mixture is homogenized From a methodological point of view, the method according to the invention has no methodical particularities, but can be determined by means of the customary and known mixing methods and mixing units, such as stirred kettles, dissolvers, stirred mills,
  • the platelet-shaped metallic effect pigment (B) is preferably used in the form of pigment pastes.
  • they are used in the form of the pigment pastes described in German Patent Application DE 102 40 972 A1, page 3, paragraph [0019], to page 5, paragraph [0031], which contains at least one platelet-shaped metallic effect pigment (B) instead of there described effect pigments or in addition to these.
  • They are particularly preferably used as coating materials for the production of single-layered and multi-layered, in particular multi-layer, effect-imparting coatings.
  • they are used as waterborne basecoats for the production of effecting and color and effect basecoats of multicoat paint systems, preferably multi-layer finishes for motor vehicles, in particular high-grade passenger cars.
  • the multicoat paint systems are prepared by wet-on-wet processes in which
  • the resulting effect and color and effect coatings according to the invention in particular the multicoat systems according to the invention, have a flop index FL ⁇ - Rite > 15, preferably> 17 and in particular> 19, calculated in each case according to the formula of the company X-Rite:
  • the measured value L * 15 of the formula X-Rite is> 100, preferably> 110 and in particular> 120.
  • the relevant dyeing and effecting agents according to the invention Coatings, in particular the multicoat paint systems according to the invention, no more light-dark shades (clouds).
  • the effect-imparting and color-producing and effect-imparting coatings according to the invention in particular the multicoat paint systems according to the invention, have an outstanding performance property profile, which is excellently balanced in terms of mechanics, optics, corrosion resistance, intercoat adhesion and substrate adhesion.
  • the metallic flop can be so pronounced that a chrome-like mirror effect is achieved.
  • the color and effect coatings according to the invention, in particular the multi-layer coatings according to the invention exhibit aesthetically pleasing, elegant, effective color effects with a low sparkle effect (glitter effect).
  • a stirred vessel was charged with 24 parts by weight of a thickening agent (paste of a sodium magnesium phyllosilicate, Laponite® RD, 3% in water). 19 parts by weight of the polyurethane dispersion according to the German patent application DE 40 09 858 A1, column 16, lines 10 to 35, "C. Preparation of an aqueous polyurethane resin dispersion ", added with stirring. Subsequently, a mixture of 3.2 parts by weight of a commercially available water-dilutable melamine-formaldehyde resin (Cymel® 327) and 1.0 part by weight of an aqueous polyester resin dispersion according to German Patent Application DE 40 09 858 A1, column 16, lines 37 to 59, "D.
  • a thickening agent paste of a sodium magnesium phyllosilicate, Laponite® RD, 3% in water.
  • the resulting mixture was coated with a paste of 8.0 parts by weight of a flake-form aluminum effect pigment (B) prepared by a PVD process (Alu-Hydroshine® WS3001 from Eckart) and 8.0 parts by weight of a mixture according to German patent application DE 102 40 972 A1, page 7, paragraph [0053], from Viscalex® HV30, an organic amine, Surfynol® 100, the nonionic surfactant (nonionic surfactant) Hydropalat® 3037 from Cognis and water.
  • B flake-form aluminum effect pigment
  • Flash point > 70 ° C., binder content: 13% by weight Pigment content: 0.8% by weight and pigment / binder ratio: 0.06
  • the aqueous basecoat 1 was adjusted to a pH of 7.8 to 8.2 with a ten percent aqueous dimethylethanolamine solution and deionized water and an application viscosity of 60 mPas at 23 ° C. and a shear of 1000 s -1 .
  • the resulting mixture was treated with an aluminum effect pigment paste of 3.6 parts by weight of Alu-Hydrolux® 612 from Eckart, 0.5 parts by weight of Alu-Hydrolux® 2154 from Eckart, 3.4 parts by weight of the polyester resin dispersion according to German patent application DE 40 09 858 A1, Column 16, lines 37 to 59, "D.
  • Preparation of an aqueous polyester resin dispersion 4.0 parts by weight of butylglycol and 0.5 part by weight of dimethylethanolamine (10% in deionized water) are added with stirring.
  • the mixture was homogenized, resulting in water-based varnish V 1.
  • The was adjusted to a pH of 7.8 to 8.2 with a ten percent aqueous dimethylethanolamine solution and deionized water and an application viscosity of 90 mPas at 23 ° C and a shear of 1000 s " 1 .
  • Peripheral speed was 0.1 m / s. Even after 20 days showed no
  • the water-based lacquer V 1 was therefore outstandingly suitable for the production of non-speckle effect multicoat paint systems.
  • the waterborne basecoat 1 was applied in two spray coats.
  • the first application was carried out pneumatically (distance: 0.5 m;
  • the aqueous basecoat films were overcoated with a commercially available two-component clearcoat from BASF Coatings AG, corresponding to a dry film thickness of 40 microns. After that, the
  • the first application was carried out by means ESTA (bell speed: 45,000 min -1; shaping air ESTA: 120 Nl / min; voltage: 65 kV; pitch: 0.25 m; outflow quantity of paint: 170 ml / min), corresponding to a dry layer thickness of 8-10 microns.
  • the second application was carried out pneumatically (distance: 0.32 m, discharge amount of paint: 540 Nl / min, atomizing air quantity: 300 Nl / min, atomizing air pressure: 4.8 bar, horn air quantity: 395 Nl / min, horn air pressure: 5.2 bar), corresponding to a dry film thickness of 4 to 6 microns.
  • the aqueous basecoat films were flashed off after each of the first and second application for 2 minutes each. They were then dried at 80 ° C. for 10 minutes. After cooling the body panels to 2O 0 C, the aqueous basecoat films were overcoated with a commercially available two-component clearcoat from BASF Coatings AG, corresponding to a dry film thickness of 40 microns. Subsequently, the aqueous basecoat films and clearcoat films were baked together at 13O 0 C for 30 minutes, resulting in the multi-layer coating V 1 resulted.
  • the multicoat paint systems 1 and V 1 were measured using a spectrophotometer from X-Rite (eg MA48 Multi-Angle Spectrophotometer). From the brightness values for the viewing angles 15 °, 45 ° and 110 ° determined on the basis of the two multicoat paint systems, the so-called X-Rite flop index can be calculated according to the formula
  • the metallic flop was much more pronounced than in the multicoat system V 1 of Comparative Experiment V 2 - even though the layer thickness of the basecoat in the multicoat system 1 was very much less than the layer thickness of the multicoat system 1 Basecoat in multicoat paint V 1 with a maximum of 16 ⁇ m.
  • the multicoat paint systems 1 and V 1 were observed under diffuse light from a distance of 2 to 3 m in plan view (80 °) and oblique view (40 °) with respect to the light-dark shades (clouds) are visually assessed and graded (grade 1: no clouds visible, to grade 5: clouds very clearly visible).
  • the rating was 3 in both supervision and oblique view. This meant that there were no significant clouds.
  • the aqueous basecoat 1 of Example 1 was a pigment paste based on the aqueous, acrylated polyurethane dispersion according to German Patent Application DE 40 10 176 A1, page 8, lines 37 to 43, i. V. m. Page 7, lines 46 to 65, containing, based on the pigment paste, 30 wt .-% of transparent titanium dioxide (PW6), added in varying amounts, so that the following weight ratios of aluminum effect pigment (B): titanium dioxide (C) resulted:
  • Example 4 (water-based paint series 3):
  • the water-based paint 1 of Example 1 was a pigment paste based on the aqueous, acrylated polyurethane dispersion according to German Patent Application DE 40 10 176 A1, page 8, lines 37 to 43, i. V. m. Page 7, lines 46 to 65, containing, based on the pigment paste, 37 wt .-% opacifying iron oxide yellow (PY42), added in different amounts, so that the following weight ratios of aluminum effect pigment (B): iron oxide Yellow (C) resulted:
  • Example 5 (water-based paint series 4):
  • the waterborne basecoat 1 of Example 1 was a pigment paste based on the aqueous, acrylated polyurethane dispersion according to the German patent application DE 40 10 176 A1, page 8, lines 37 to 43, i. V. m. Page 7, lines 46 to 65, containing, based on the pigment paste, 34 wt .-% isoindolinone yellow (PY110), added in different amounts, so that the following weight ratios of aluminum effect pigment (B): isoindolinone yellow (C) resulted:
  • Example 6 (water-based paint series 5):
  • the waterborne basecoat 1 of Example 1 was a pigment paste based on the aqueous polyurethane dispersion according to German Patent Application DE 40 09 858 A1, column 16, lines 10 to 35, containing, based on the pigment paste, 24 wt .-% quinacridone red (PR122), added in varying amounts, so that the following weight ratios of aluminum effect pigment (B): quinacridone red (C) resulted:
  • the water-based paint 1 of Example 1 was a pigment paste based on the aqueous polyurethane dispersion according to German Patent Application DE 40 09 858 A1, column 16, lines 10 to 35, containing, based on the pigment paste, 13.5 wt .-% indanthrone blue (PB60), added in varying amounts, so that the following weight ratios of aluminum effect pigment (B): indanthrone blue (C) resulted:
  • Example 8 (water-based paint series 7):
  • the water-based paint 1 of Example 1 was a pigment paste based on the aqueous polyurethane dispersion according to German Patent Application DE 40 09 858 A1, column 16, lines 10 to 35, containing, based on the pigment paste, 22.4 wt .-% chlorinated copper phthalocyanine green (PG7), added in varying amounts, so that the following weight ratios of aluminum effect pigment (B): chlorinated copper phthalocyanine green (C) resulted:
  • Example 9 (water-based paint series 8):
  • the water-based paint 1 of Example 1 was a pigment paste based on the aqueous polyurethane dispersion according to German Patent Application DE 40 09 858 A1, column 16, lines 10 to 35, containing, based on the pigment paste, 10 wt .-% color cast (PB7), in different Amounts added so that the following weight ratios of aluminum effect pigment (B): color cast (C) resulted:
  • Examples 1 1.1 to 11.4 For the preparation of the yellow metallic colored multicoat paint systems 3.1 to 3.4 (Examples 1 1.1 to 11.4), the aqueous basecoat materials 3.1 to 3.4 of Examples 4.1 to 4.4 were used.
  • the aqueous basecoat materials 5.1 to 5.6 of Examples 6.1 to 6.6 were used.
  • the aqueous basecoat materials 6.1 to 6.4 of Examples 7.1 to 7.4 were used.
  • the waterborne basecoats of series 2 to 8 were prepared analogously to the instructions of Example 2.
  • Table 1 gives an overview of the obtained values of the X-Rite flop index and of the brightness value L * 15 ° which is essential for the formation of light-dark shades (clouds).
  • SKK Schwitzbergkonstantry test
  • Table 1 Essential performance properties of the multicoat paint systems of series 2 to 8
  • Multicoat paint systems had an excellent flop effect, which was accompanied - if at all - by a very low sparkle effect. This resulted
  • the multi-layer coatings had an excellent overall appearance. They were therefore excellent for painting

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Paints Or Removers (AREA)

Abstract

L'invention concerne des mélanges aqueux contenant des pigments à effet métallique, physiquement, thermiquement et physiquement-thermiquement durcissables, caractérisés en ce qu'ils comprennent : A) au moins un polyuréthanne choisi dans le groupe comprenant, en tant que liants, des polyuréthannes physiquement durcissables, insaturés, thermiquement bathotoniques et/ou thermiquement à réticulation externe, saturés, insaturés, et/ou greffés avec des composés oléfiniquement insaturés, stabilisés ioniquement et/ou non ioniquement, et B) au moins un pigment à effet métallique, lamellaire, fabriqué suivant le procédé PVD. L'invention concerne en outre un procédé d'obtention de ces produits, ainsi que leur utilisation.
PCT/EP2006/011052 2005-11-17 2006-11-17 Melanges aqueux contenant des pigments a effet metallique, physiquement, thermiquement et physiquement-thermiquement durcissables, leur procede de production et leur utilisation WO2007057200A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005054867.9 2005-11-17
DE200510054867 DE102005054867A1 (de) 2005-11-17 2005-11-17 Physikalisch, thermisch und physikalisch und thermisch härtbare, Metalleffektpigmente enthaltende, wässrige Gemische, Verfahren zu ihrer Herstellung und ihre Verwendung

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WO2007057200A1 true WO2007057200A1 (fr) 2007-05-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008141768A1 (fr) * 2007-05-18 2008-11-27 Basf Coatings Ag Agents de revêtement pigmentés aqueux, leur procédé de production et leur utilisation pour la production de laquages multicouches
CN102464918A (zh) * 2010-11-10 2012-05-23 成都市新津托展油墨有限公司 一种高性能醇水性油墨及其制备方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007038487A1 (de) * 2007-08-14 2009-02-19 Basf Coatings Ag Wässriger Beschichtungsstoff, Verfahren zu seiner Herstellung und seine Verwendung
DE102009046625A1 (de) * 2009-11-11 2011-05-12 Tesa Se Etikett mit Effektpigmenten

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