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
  • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
  • C09D5/08—Anti-corrosive paints
  • C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
  • C09D5/084—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
  • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
  • C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
  • C09D5/448—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications characterised by the additives used
• • C—CHEMISTRY; METALLURGY
  • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
  • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
  • C25D13/00—Electrophoretic coating characterised by the process
  • C25D13/04—Electrophoretic coating characterised by the process with organic material
• • C—CHEMISTRY; METALLURGY
  • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
  • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
  • C25D13/00—Electrophoretic coating characterised by the process
  • C25D13/10—Electrophoretic coating characterised by the process characterised by the additives used
• • C—CHEMISTRY; METALLURGY
  • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
  • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
  • C25D13/00—Electrophoretic coating characterised by the process
  • C25D13/20—Pretreatment

Definitions

• Suitable substrates that can be cleaned and coated in accordance with the present invention include, without limitation, metal substrates, metal alloy substrates, and/or substrates that have been metallized, such as nickel plated plastic.
• the metal or metal alloy can be aluminum and/or steel.
• the steel substrate could be cold rolled steel, electrogalvanized steel, and hot dipped galvanized steel.
• the substrate may comprise a portion of a vehicle such as a vehicular body (e.g., without limitation, door, body panel, trunk deck lid, roof panel, hood, and/or roof) and/or a vehicular frame.
• a vehicular body e.g., without limitation, door, body panel, trunk deck lid, roof panel, hood, and/or roof
• vehicular frame e.g., without limitation, door, body panel, trunk deck lid, roof panel, hood, and/or roof
• vehicle or variations thereof includes, but is not limited to, civilian, commercial, and military land vehicles such as cars, motorcycles, and trucks.
• the carboxylic acid selected for use in the compositions described herein has a water solubility of > 1 g/L at 20°C.
• the pretreatment composition also comprises a zirconyl compound.
• a zirconyl compound refers to a zirconium compound with an oxide or a hydroxide group on a zirconium atom.
• the pretreatment composition also comprises a filler, such as a siliceous filler.
• a filler such as a siliceous filler.
• suitable fillers include silica, mica, montmorillonite, kaolinite, asbestos, talc, diatomaceous earth, vermiculite, natural and synthetic zeolites, cement, calcium silicate, aluminum silicate, sodium aluminum silicate, aluminum polysilicate, alumina silica gels, and glass particles.
• siliceous fillers other finely divided particulate substantially water- insoluble fillers may also be employed.
• the substrate may be rinsed with water and dried.
• the coating composition comprises a thermosetting film-forming resin.
• thermosetting refers to resins that "set” irreversibly upon curing or crosslinking, wherein the polymer chains of the polymeric components are joined together by covalent bonds. This property is usually associated with a cross-linking reaction of the composition constituents often induced, for example, by heat or radiation. Curing or crosslinking reactions also may be carried out under ambient conditions. Once cured or crosslinked, a thermosetting resin will not melt upon the application of heat and is insoluble in solvents.
• the coating composition comprises a thermoplastic film-forming resin.
• thermoplastic refers to resins that comprise polymeric components that are not joined by covalent bonds and thereby can undergo liquid flow upon heating and are soluble in solvents.
• these methylol groups are etherified by reaction with an alcohol, such as a monohydric alcohol containing from 1 to 4 carbon atoms, such as methanol, ethanol, isopropanol, and n-butanol.
• an alcohol such as a monohydric alcohol containing from 1 to 4 carbon atoms, such as methanol, ethanol, isopropanol, and n-butanol.
• Aminoplast resins are commercially available from American Cyanamid Co. under the trademark CYMEL and from Monsanto Chemical Co. under the trademark RESIMENE.
• yttrium compounds suitable for use in electrodepositable compositions are organic and inorganic yttrium compounds such as yttrium oxide, yttrium bromide, yttrium hydroxide, yttrium molybdate, yttrium sulfate, yttrium silicate, and yttrium oxalate. Organoyttrium complexes and yttrium metal can also be used. When the yttrium is to be incorporated into an electrocoat bath as a component in the pigment paste, yttrium oxide is often the preferred source of yttrium.
• Example tints include, but are not limited to, pigments dispersed in water-based or water miscible carriers such as AQUA-CHEM 896 commercially available from Degussa, Inc., CHARISMA COLORANTS and MAXITONER INDUSTRIAL COLORANTS commercially available from Accurate Dispersions division of Eastman Chemical, Inc.
• AQUA-CHEM 896 commercially available from Degussa, Inc.
• CHARISMA COLORANTS and MAXITONER INDUSTRIAL COLORANTS commercially available from Accurate Dispersions division of Eastman Chemical, Inc.
• the colorant can be present in the coating composition in any amount sufficient to impart the desired visual and/or color effect.
• the colorant may comprise from 1 to 65 weight percent, such as from 3 to 40 weight percent or 5 to 35 weight percent, with weight percent based on the total weight of the composition.
• the cationic polymer can be derived by reacting a polyepoxide containing polymer with a cationic salt group former.
• cationic salt group former means a material that is reactive with epoxy groups and which can be acidified before, during, or after reaction with the epoxy groups to form cationic salt groups.
• Suitable materials that can be used as the cationic salt group former include amines such as primary or secondary amines, which can be acidified after reaction with the epoxy groups to form amine salt groups, or tertiary amines, which can be acidified prior to reaction with the epoxy groups and which after reaction with the epoxy groups form quaternary ammonium salt groups.
• examples of other cationic salt group formers are sulfides which can be mixed with acid prior to reaction with the epoxy groups and form ternary sulfonium salt groups upon subsequent reaction with the epoxy groups.
• Example special effect compositions that may be used include pigments and/or compositions that produce one or more appearance effects such as reflectance, pearlescence, metallic sheen, phosphorescence, fluorescence, photochromism, photosensitivity, thermochromism, goniochromism and/or color- change. Additional special effect compositions can provide other perceptible properties, such as opacity or texture. In a non-limiting embodiment, special effect compositions can produce a color shift, such that the color of the coating changes when the coating is viewed at different angles. Example color effect compositions are identified in U.S. Patent No. 6,894,086, incorporated herein by reference.
• Acid Cleaner 2 A citric acid cleaner prepared as follows. First, 468.4 g of anhydrous citric acid was dissolved in 18,000 g of water. Next, 103.4 g of a commercial surfactant package, Chemkleen 171-12, was added to the mixture.

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• Chemical & Material Sciences (AREA)
• Materials Engineering (AREA)
• Engineering & Computer Science (AREA)
• Organic Chemistry (AREA)
• Life Sciences & Earth Sciences (AREA)
• Metallurgy (AREA)
• Electrochemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Wood Science & Technology (AREA)
• Inorganic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Molecular Biology (AREA)
• Chemical Treatment Of Metals (AREA)
• Paints Or Removers (AREA)
• Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
• Application Of Or Painting With Fluid Materials (AREA)
• Detergent Compositions (AREA)

Applications Claiming Priority (2)

Publications (1)

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• 2011
  • 2011-09-30 US US13/249,331 patent/US20130081950A1/en not_active Abandoned
• 2012
  • 2012-09-25 CN CN201280055770.5A patent/CN103930495A/zh active Pending
  • 2012-09-25 CA CA2849983A patent/CA2849983A1/en not_active Abandoned
  • 2012-09-25 IN IN2474DEN2014 patent/IN2014DN02474A/en unknown
  • 2012-09-25 WO PCT/US2012/057022 patent/WO2013049004A1/en active Application Filing
  • 2012-09-25 KR KR1020147011157A patent/KR20140069268A/ko not_active Ceased
  • 2012-09-25 MX MX2014003761A patent/MX2014003761A/es unknown
  • 2012-09-25 RU RU2014117532/02A patent/RU2014117532A/ru not_active Application Discontinuation
  • 2012-09-25 EP EP12770390.8A patent/EP2760944A1/en not_active Withdrawn

Non-Patent Citations (1)

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