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
  • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
  • C09D7/40—Additives
  • C09D7/60—Additives non-macromolecular
  • C09D7/61—Additives non-macromolecular inorganic
• • 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
  • C09C1/36—Compounds of titanium
• • 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
  • C09C1/36—Compounds of titanium
  • C09C1/3607—Titanium dioxide
  • C09C1/3684—Treatment with organo-silicon compounds
• • 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
  • C09C1/40—Compounds of 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
• • 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
  • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
  • C09D7/40—Additives
  • C09D7/66—Additives characterised by particle size
  • C09D7/67—Particle size smaller than 100 nm
• • 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
  • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
  • C09D7/40—Additives
  • C09D7/66—Additives characterised by particle size
  • C09D7/68—Particle size between 100-1000 nm
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
  • C01P2006/00—Physical properties of inorganic compounds
  • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
  • C01P2006/62—L* (lightness axis)
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
  • C01P2006/00—Physical properties of inorganic compounds
  • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
  • C01P2006/65—Chroma (C*)
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K3/00—Use of inorganic substances as compounding ingredients
  • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
  • C08K3/20—Oxides; Hydroxides
  • C08K3/22—Oxides; Hydroxides of metals

Definitions

• the present invention relates to a coating composition capable of forming a paint color that is highly saturated in the highlight (near specularly reflected light) and has a small change in brightness from the face (middle of highlight and shade) to the shade (oblique direction).
• the present invention relates to a coating film forming method.
• the present invention relates to a method for forming a coating film comprising the steps of coating a substrate with the coating composition according to any one of Items 1 to 3, and further applying a clear coating.
• the colored aluminum pigment it is preferable to use a pigment having an average particle diameter in the range of 5 to 40 ⁇ m from the viewpoint of the finish of the coated film, the saturation of highlight, and the like, and more preferably the average particle diameter. Is in the range of 7 to 30 ⁇ m, particularly preferably in the range of 8 to 25 ⁇ m. It is preferable to use a thickness in the range of 0.05 to 0.5 ⁇ m.
• the average particle diameter and thickness referred to here means a numerical value obtained by observing the colored aluminum pigment with an optical microscope or an electron microscope, or a numerical value measured with a particle size distribution measuring apparatus using a laser such as a laser diffraction method. To do.
• part or all of the titanium oxide pigment is a fine-particle titanium oxide pigment having an average particle size of 20 to 80 nm from the point of improving the saturation of the coating film obtained by coating.
• the titanium oxide pigment may contain a fine particle titanium oxide pigment having an average particle diameter of 20 to 80 nm.
• the fine-particle titanium oxide pigment is a pigment that has a high transparency due to its small particle diameter and causes a subtle change in hue depending on the observation angle due to the effect of scattering light.
• the content of the titanium oxide pigment has the effect of suppressing a change in brightness from the face (middle of highlight and shade) to the shade (diagonal direction) of the coating film obtained by painting. Therefore, the solid content is in the range of 0.01 to 50 parts by weight, more preferably 0.05 to 30 parts by weight, and particularly preferably 0.1 to 25 parts by weight with respect to 100 parts by weight of the resin solids in the coating composition. Within the range of parts by mass.
• uncolored aluminum may be blended as long as the effects of the present invention are not impaired.
• the coating composition of the present invention is free or substantially free of such uncolored aluminum. Even when the coating composition of the present invention contains such uncolored aluminum, it is usually preferably 15 parts or less with respect to 100 parts of colored aluminum.
• the coating composition of the present invention is prepared by mixing and dispersing the aforementioned components.
• the solid content at the time of coating is adjusted to 12 to 60% by weight, preferably 15 to 50% by weight, and the viscosity at 20 ° C. is adjusted to 17 to 23 seconds / Ford Cup # 3 based on the coating composition. It is preferable to keep it.
• the coating film obtained by coating the coating composition receives light irradiated at 45 degrees with respect to the regular reflection light so that the coating film is 45 degrees with respect to the coating film.
• the ratio of lightness L * in the L * a * b * color system based on the obtained spectral reflectance to L * based on the spectral reflectance obtained by receiving light at an angle of 110 degrees is 1.00 to 1. It is characterized by being in the range of 50. More specifically, when the coating film is irradiated with light at an angle of 45 degrees, the lightness L * of the light received at 45 degrees with respect to the specularly reflected light is L * 45, the light received at 110 degrees.
• the undercoat film or the intermediate coat film when an undercoat film or an intermediate coat film is formed as a base material, the undercoat film or the intermediate coat film can be heated, and a coating for the next step described later can be applied after crosslinking and curing.
• the coating composition of the present invention can be applied in a state where the undercoat film and / or the intermediate coat film is uncured.
• the clear coating in the method of the present invention is a coating to be applied to the uncured or cured coating surface of the above-mentioned coating composition, comprising a resin component and a solvent as main components, and, if necessary, other coating additives Is a liquid paint that forms a colorless or colored transparent coating film.
• melamine resin As a crosslinking agent, melamine resin, urea resin, polyisocyanate compound, block polyisocyanate compound, epoxy compound or resin, carboxyl group-containing compound or resin, acid anhydride, alkoxysilane group-containing, which can react with the functional group of the base resin Examples thereof include compounds or resins. Further, if necessary, additives such as a solvent such as water and an organic solvent, a curing catalyst, an antifoaming agent, an ultraviolet absorber, a rheology control agent, an antioxidant, and a surface conditioner can be appropriately blended.
• the painted plate is visually illuminated with an artificial sun lamp (Ceric, color temperature 6500K), and the angle of the test plate is changed with respect to the illumination.
• the face (middle of highlight and shade) is shaded (oblique).
• the brightness change, highlight saturation, and shade brightness were evaluated. The evaluation was conducted by 5 designers, 3 designers and 3 engineers who have been engaged in color development for more than 3 years, and the average score was adopted: 3: High saturation with highlight, high brightness with shade, small change in brightness from face to shade; 2: High saturation at highlight, high brightness at shade, large change in brightness from face to shade; 1: High saturation at highlight, low brightness at shade, large change in brightness from face to shade, or low saturation at highlight.
• Monomer emulsion (1) 42 parts by weight of deionized water, 0.72 parts by weight of Aqualon KH-10, 2.1 parts by weight of methylenebisacrylamide, 2.8 parts by weight of styrene, 16.1 parts by weight of methyl methacrylate, ethyl acrylate Monomer emulsion (1) obtained by mixing and stirring 28 parts by mass and 21 parts by mass of n-butyl acrylate.
• Production Example 3 Manufacture of polyester resin
• a reaction vessel equipped with a thermometer, thermostat, stirrer, reflux condenser and water separator 109 parts by weight of trimethylolpropane, 141 parts by weight of 1,6-hexanediol, 126 parts by weight of hexahydrophthalic anhydride and 120 parts of adipic acid
• a mass part was charged, and the temperature until reaching 160 ° C. to 160 ° C. was raised to 3 hours, followed by a condensation reaction at 230 ° C. for 4 hours.
• 38.3 parts by mass of trimellitic anhydride was further added, reacted at 170 ° C.
• Production Example 4 Manufacture of hydroxyl group-containing acrylic resin
• a reaction vessel equipped with a thermometer, thermostat, stirrer, reflux condenser and dropping device was charged with 50 parts of ethylene glycol monoethyl ether acetate, stirred and mixed, and the temperature was raised to 135 ° C.
• the following monomer / polymerization initiator mixture was dropped into a reaction vessel maintained at the same temperature over 3 hours, and aging was performed for 1 hour after the completion of the dropping. Thereafter, a mixture of 10 parts of ethylene glycol monoethyl ether acetate and 0.6 parts of 2,2′-azobis (2-methylpropionitrile) was added dropwise over 1 hour 30 minutes maintained at the same temperature, and further 2 hours.
• Production Example 6 (Preparation of colored pigment dispersion 2) 22.4 parts of TIPAQUE CR-95 (trade name, titanium dioxide pigment, manufactured by Ishihara Sangyo Co., Ltd., average particle size 286 nm) in a 225 ml mayonnaise bottle, 32 parts of the polyester resin solution obtained in Production Example 3 and deionized water 57.6 parts were blended, and 1.5 parts of zirconia beads having a diameter of 1.5 mm were added and sealed, and dispersed for 120 minutes using a shaking paint conditioner. After the dispersion, 100-mesh wire mesh filtration was performed to remove zirconia beads, and a colored pigment dispersion 2 was obtained.
• TIPAQUE CR-95 trade name, titanium dioxide pigment, manufactured by Ishihara Sangyo Co., Ltd., average particle size 286 nm
• Production Example 8 (Preparation of highly concentrated colored aluminum pigment solution 2)
• PALIOCROM GOLD L2020 trade name, colored aluminum pigment, manufactured by BASF, average particle diameter of 16 ⁇ m
• Aluminum pigment liquid 2 was obtained.
• the highlight in the vicinity of specular reflection light
• the highlight has high saturation and brightness from the face (middle of the highlight and shade) to the shade (oblique direction).
• a coating film having a coating color with little change can be obtained.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Materials Engineering (AREA)
• Wood Science & Technology (AREA)
• Nanotechnology (AREA)
• Inorganic Chemistry (AREA)
• Paints Or Removers (AREA)
• Application Of Or Painting With Fluid Materials (AREA)

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• 2011
  • 2011-01-13 IN IN5902DEN2012 patent/IN2012DN05902A/en unknown
  • 2011-01-13 US US13/521,800 patent/US9376577B2/en not_active Expired - Fee Related
  • 2011-01-13 CN CN201180005673.0A patent/CN102695764B/zh not_active Expired - Fee Related
  • 2011-01-13 JP JP2011550001A patent/JP5991815B2/ja active Active
  • 2011-01-13 WO PCT/JP2011/050435 patent/WO2011087054A1/ja not_active Ceased

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