WO2024023705A1 - Composition de revêtement à base d'eau et son utilisation - Google Patents

Composition de revêtement à base d'eau et son utilisation Download PDF

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Publication number
WO2024023705A1
WO2024023705A1 PCT/IB2023/057541 IB2023057541W WO2024023705A1 WO 2024023705 A1 WO2024023705 A1 WO 2024023705A1 IB 2023057541 W IB2023057541 W IB 2023057541W WO 2024023705 A1 WO2024023705 A1 WO 2024023705A1
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WIPO (PCT)
Prior art keywords
weight
percent
coating composition
wax
acrylic resin
Prior art date
Application number
PCT/IB2023/057541
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English (en)
Inventor
Marisol RODRIGUEZ BAEZ
Antonio Sanchez Martinez
Maria del Carmen MARIN VALDEZ
Original Assignee
Consorcio Comex, S.A. De C.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Consorcio Comex, S.A. De C.V. filed Critical Consorcio Comex, S.A. De C.V.
Publication of WO2024023705A1 publication Critical patent/WO2024023705A1/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
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • 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
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
    • 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
    • C09D15/00—Woodstains
    • 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
    • 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
    • C09D7/63—Additives non-macromolecular organic
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0058—Biocides

Definitions

  • the present invention is related to a coating composition, and more particularly to a water-based coating composition for porous substrates.
  • Coatings are designed to protect and/or improve the aesthetic appearance of a substrate such as wood, concrete, cement, brick, and the like.
  • stain finishes are coatings that allow retainment of the natural textural appearance of the substrate on which they are applied.
  • One key attribute of stain finishes is that they are designed to avoid formation of an appreciable thick surface film on the substrate surface. They are well suited for textured, exposed surfaces such as siding, decks, steps, and the like. The ability to cover the surface without leaving a thick film on the surface minimizes the peeling and cracking that varnishes and other surface coatings can experience.
  • Stain finishes can be further subdivided as transparent systems or colored systems. When applied to a porous substrate, stain finishes can protect the substrate from moisture and weather. In addition to their protective characteristics, they can be designed to change the color of the porous surface without hiding the texture or pattern of the substrate, such as showing the grain when the porous surface is wood. Nevertheless, there is room to improve features of stain finishes such as durability and resistance to exterior elements.
  • the present invention relates to a coating composition, comprising: at least one binder component comprising at least an acrylic resin, and at least one wax compound; wherein the coating composition further may comprise at least one UV absorber compound; and at least one biocide compound.
  • the present invention also relates to a porous substrate coated at least in part with the coating composition.
  • the present invention also relates to use of the coating composition as a coating for porous substrates in a varnish, lacquer, paint, stain, enamel, printing ink or floor covering.
  • Mw number average molecular weight
  • any numerical range recited herein is intended to include all sub-ranges subsumed therein.
  • a range of "1 to 10" is intended to include all sub -ranges between (and including) the recited minimum value of 1 and the recited maximum value of 10, that is, having a minimum value equal to or greater than 1 and a maximum value of equal to or less than 10.
  • any endpoints of those ranges and/or numbers within those ranges can be combined within the scope of the present invention.
  • maximum and minimum amounts any such amounts can be combined to specify ranges of ingredients numbers within those ranges can be combined within the scope of the present invention.
  • the word “comprising” and forms of the word “comprising”, as used in this description and in the claims, does not limit the present invention to exclude any variants or additions. Additionally, although the present invention has been described in terms of “comprising”, the processes, materials, and coating compositions detailed herein may also be described as “consisting essentially of’ or “consisting of’.
  • compositions that comprises “a wax component” or “at least one wax component”.
  • references are meant to encompass compositions comprising one wax component as well as compositions that comprise more than one wax component, such as compositions that comprise two or more wax components.
  • a composition or component thereof that is “substantially free of’ another component may include trace amounts and/or non-functional amounts of the component.
  • a composition or component thereof that is “substantially free of’ component X may include component X in an amount no more than 1%, no more than 0.5%, no more than 0.1%, no more than 0.01%, no more than 0.001%, no more than 0.0001%, no more than 0.00001%, or no more than 0.000001% by total weight of the composition.
  • a composition or component thereof that is “completely free of’ another component does not include a detectable amount of the omitted component (i.e., does not include an amount above any inherent background signal associated with the testing instrument) when analyzed using standard coating composition analysis techniques such as, for example, chromatographic techniques (e.g., thin-layer chromatography (TLC), gas chromatography (GC), liquid chromatography (LC)), or spectroscopy techniques (e.g., Fourier transform infrared (FTIR) spectroscopy).
  • TLC thin-layer chromatography
  • GC gas chromatography
  • LC liquid chromatography
  • spectroscopy techniques e.g., Fourier transform infrared (FTIR) spectroscopy.
  • the terms “on”, “applied on/over”, “formed on/over”, “deposited on/over”, “overlay” and “provided on/over” a surface mean applied, formed, deposited, overlay, or provided, respectively, on but not necessarily in contact with the surface.
  • a coating layer “formed over” a substrate does not preclude the presence of one or more other coating layers of the same or different composition located between the formed coating layer and the substrate.
  • the present disclosure relates to a coating composition, comprising: a binder component comprising an acrylic resin; and at least one wax compound; wherein the coating composition further may comprise a UV absorber; and a biocide compound.
  • the coating composition can exhibit favorable physical properties such as good adhesion to porous substrates and water resistance when applied to any suitable application, such as porous substrate applications facing high temperature and humidity environmental conditions in exterior environments.
  • the coating composition can exhibit weather resistance of at least 4 months and/or a tack-free dry time of at least 24 hours.
  • the disclosed coating composition can also be readily applied and maintained.
  • the disclosed coating composition is suitable, for example, for application over a porous substrate, such as wood, concrete, cement, brick, and the like.
  • a porous substrate refers to substrates that contain pores or interstices via which a liquid composition may penetrate the substrate surface.
  • stain refers to a translucent composition that, upon application to a porous substrate, covers the substrate surface but, rather than flowing and leveling upon the surface, at least partially penetrates the pores or interstices of the substrate. Stains may also color the substrate while allowing some of the substrate’s natural color and patterns to show through. “Stains”, for purposes of the present disclosure, are to be distinguished from other coatings, such as paints, that upon application to a porous substrate, flow and level upon the substrate surface to form a continuous coating film, without significantly penetrating the substrate surface.
  • the coating composition of the present disclosure can comprise a penetrating stain composition.
  • penetrating refers to a composition that is suitable for application to a porous substrate wherein, after being applied, penetrates the substrate surface to such an extent that there is no significant amount of excess material remaining on the surface to be removed.
  • the coating composition can be formulated as a "water-based” coating composition.
  • water-based coating composition refers to a composition wherein the carrier fluid primarily comprises an “aqueous medium”.
  • an “aqueous medium” refers to a liquid medium comprising at least 50 weight % water, based on the total weight of the liquid medium.
  • Such aqueous liquid mediums can for example comprise at least 60 weight % water, at least 70 weight % water, at least 80 weight % water, at least 90 weight % water, or at least 95% water, based on the total weight of the liquid medium.
  • the aqueous medium may optionally further comprise one or more organic solvents.
  • Non-limiting examples of suitable organic solvents for use in the aqueous medium or as an organic medium include polar organic solvents (e.g., protic organic solvents such as glycols, glycol ether alcohols, alcohols, and volatile ketones, glycol diethers, esters, and diesters).
  • polar organic solvents e.g., protic organic solvents such as glycols, glycol ether alcohols, alcohols, and volatile ketones, glycol diethers, esters, and diesters.
  • Other non-limiting examples of organic solvents include aromatic and aliphatic hydrocarbons.
  • the coating compositions of the present disclosure can comprise a binder.
  • binder refers to the material(s) in a composition that are film-forming.
  • film-forming means that a material forms a film upon drying and/or curing at ambient or elevated temperature. In particular, the used binder does not form a thick film.
  • the coating composition of the present disclosure can comprise a binder that comprises an acrylic resin.
  • acrylic resin refers to resins that may comprise a homopolymer or copolymer or terpolymer formed from at least one acrylic monomer.
  • the acrylic resin may be formed according to any method known in the art by using any number of acrylic monomers, including but not limited to (meth)acrylic acid; alkyl (meth)acrylates such as methyl(meth) acrylate, ethyl (meth) acrylate, propyl(meth)acrylate, butyl(meth)acrylate; functional acrylates such as hydroxyethyl (meth)acrylate, hydroxyl propyl(meth)acrylate, hydroxyl butyl(meth)acrylate, cyclic; polycyclic (meth)acrylics such as benzyl (meth)acrylate, cyclohexyl (meth)acrylate, and isobornyl (meth)acrylate; acrylamides such as N- butoxy methyl acrylamide; and mixtures thereof. It will be understood that (meth) acrylic and like terms refers to both methacrylic and acrylic.
  • acrylic monomer examples include, but are not limited to, acrylic acid, methyl acrylate, ethyl acrylate, n-propyl acrylate, isopropyl-acrylate, n- butyl acrylate, 2- butyl acrylate, isobutyl acrylate, n-pentyl acrylate, n-hexyl acrylate, n-octyl acrylate, 2-ethylhexyl acrylate, n-decyl acrylate, 2-propylheptyl acrylate, lauryl acrylate, methacrylic acid, methyl methacrylate, ethyl methacrylate, n-propyl methacrylate, isopropyl methacrylate, n-butyl methacrylate, 2-butyl methacrylate, isobutyl methacrylate, tert-butyl methacrylate, n-pentyl methacryl
  • the acrylic resin may include at least one ureido-functional monomer.
  • ureido-functional monomers include N-(2- methacryloyloxyethyl) ethylene urea (MEEU), l-(2-(3-allyloxy-2- hydroxypropylamino) ethyl)-imidazolidin-2-one, 2-ethyleneureido-ethyl methacrylate, n-hydroxyethylene urea, n-aminoethylene urea, n-(3-allyloxy-2- hydroxypropyl)aminoethylene urea, n-acryloxyethylene urea, n- methacrylaminoethylene urea, n-acrylaminoethylene urea, n- methacryloxyacetoxyethylene urea, n-methacryloxyacetaminoethylene urea, and n- di(3-allyloxy-2-hydroxypropyl)aminoethylethylene urea
  • MEEU
  • the acrylic resin may comprise a copolymer resin produced from at least one alkyl (meth)acrylate, at least one (meth)acrylic acid, and at least one ureido- functional monomer.
  • the acrylic resin may comprise a copolymer resin produced from methyl methacrylate, 2-ethylhexyl acrylate, n-butyl acrylate, methacrylic acid and N-(2- methacryloyloxyethyl) ethylene urea (MEEU).
  • the binder may comprise, for example, at least 60 percent by weight of at least one alkyl (meth) acrylate monomer, up to 6 percent by weight of at least one (meth)acrylic acid, and up to 3 percent by weight of at least one ureido-functional monomer, wherein the percentages by weight are based on the total weight of the monomers in the binder.
  • the acrylic resin may be hydrophobic and may have a low viscosity.
  • the acrylic resin can exhibit a viscosity, for example, within a range from 20 cP to 10,000 cP, from 20 cP to 8,000 cP, from 30 cP to 6,000 cP, from 30 cP to 4,000 cP, from 40 cP to 2,000 cP, or from 50 cP to 1 ,500 cP, or within a range using any combination of the foregoing values as endpoints.
  • the viscosity can be measured using a Brookfield viscometer, with a No. 3 spindle, at speed of 60 rpm and a temperature of 25° C.
  • the acrylic resin may have an average particle size of from 40 to 250 nm, such as from 50 to 230 nm, from 60 to 210 nm, from 70 to 190 nm, from 80 to 170 nm, or from 85 to 160 nm, or within a range using any combination of the foregoing values as endpoints.
  • the particle size can be measured by Dynamic Light Scattering (DLS) using for example a Malvern Zatasizer, or a Nicomp 380 or by Transmission electron microscopy (TEM) using for example a Nikon Tecnai T20 TEM operating at 200kV.
  • DLS Dynamic Light Scattering
  • TEM Transmission electron microscopy
  • average particle size refers to volume average particle size.
  • the acrylic resin may have a glass transition temperature (Tg) from 0 to 60°C, such as from -10 to 50°C, such as from 10 to 40°C, or from 15 to 30°C, or within a range using any combination of the foregoing values as endpoints. As reported herein, the Tg can be measured by Differential Scanning Calorimetry (DSC).
  • DSC Differential Scanning Calorimetry
  • the acrylic resin may be a polymer produced by any polymerization method of bulk polymerization, solution polymerization, suspension polymerization and emulsion polymerization methods.
  • the acrylic resin may be a single- stage acrylic copolymer or multi-stage polymer.
  • single- stage acrylic copolymer refers to a copolymer produced in a single copolymerization stage of monomers
  • multi-stage acrylic copolymer refers to a copolymer wherein a first (co)polymer is formed and then an additional stage(s) of monomers is further (co)polymerized with the first (co)polymer.
  • the acrylic resin may have a core/shell structure.
  • the binder comprising the acrylic resin can be present in the coating composition of the present disclosure in an amount of 10 to 55 percent by weight, or from 15 to 45 percent by weight, or from 20 to 35 percent by weight, from 25 to 35 percent by weight, or within a range using any combination of the foregoing values as endpoints, with weight percent being based on the total weight of the coating composition.
  • a wax or wax-like compound can be present in the coating composition of the present disclosure, wherein such compound generally has a melting point range of 20 to 160 °C, such as from 20 °C to 120 °C, 30 °C to 100 °C, 40 °C to 95 °C, 50 °C to 90 °C, 60 °C to 90 °C, 30 °C to 70 °C, 35 °C to 65 °C, or 40 °C to 60 °C, or a range using any combination of the foregoing values as endpoints, at atmospheric pressure.
  • Non-limiting examples of suitable waxes include natural waxes and synthetic waxes and mixtures thereof.
  • Natural waxes may include, but are not limited to, mineral waxes, vegetable waxes, animal waxes, and mixtures thereof.
  • Non-limiting examples may include, but are not limited to, crude montan wax, fully refined wax, microcrystalline wax, vaseline, carnauba wax, candelilla wax, beeswax, lanolin wax, bayberry wax, castor wax, jojoba wax, ouricury wax, soy wax, ceresin wax, shellac wax, and mixtures thereof.
  • Non-limiting examples of synthetic waxes include, but are not limited to, Fischer-Tropsch synthesis paraffin, oxidized Fischer-Tropsch paraffin, polyolefin wax, polyethylene wax, polypropylene wax, polytetrafluorethylene (PTFE) wax, polyamide wax and oxidized derivatives thereof, polycaprolactones, silicone waxes, poly ethylene- vinyl acetate and copolymers thereof, poly ethyleneacrylic acid copolymers, polyglycol waxes, and V-Wachs (polyvinyl ether). Combinations of these various waxes may also be used.
  • the wax may be a micronized wax.
  • micronized waxes include polytetrafluoroethylene wax, polytetrafluoroethylene-modified, polyethylene wax, polytetrafluoroethylene-modified polypropylene wax, carnauba wax, silicone wax, polyethylene wax, polypropylene wax, paraffinic wax, and mixtures thereof.
  • the wax can be a micronized wax having a particle size in the range from 0.1 to 50 pm, such as from 1 to 40 pm, such as from 5 to 35 pm, such as from 5 to 30 pm, or within a range using any combination of the foregoing values as endpoints. For example, 99% of the particles may be less than 50 pm, or less than 40 pm, or less than 30pm.
  • Micronized wax particle size may be determined using a sedimentation, air permeability, light diffraction, microscopy, or Hegman gauge (i.e., grind gauge) technique.
  • the micronized wax can be a micronized polyethylene wax. Without wishing to be bound by theory, the wax is typically thought to rise to the surface of the resultant film to provide an additional protective barrier against oxygen and water. Also, the wax may improve surface mar resistance of the film.
  • the wax may comprise a compound modified with a functional group comprising a carbon-carbon double bond.
  • the compound may comprise at least one hydroxy group ( — OH).
  • R is an alkyl (e.g., Cl, C2, C3, C4, or the like)
  • X is (— OH), (— CH 2 — OH), (—
  • the wax can be present in the coating composition of the present disclosure in an amount of 0.1 to 7 percent by weight, or from 0.5 to 6 percent by weight, or from 1 to 5 percent by weight, or from 2 to 4 percent by weight, or within a range using any combination of the foregoing values as endpoints, with weight percent being based on the total weight of the coating composition.
  • the coating composition of the present disclosure may comprise a UV absorber compound.
  • UV absorber refers to compositions which absorb wavelengths typically associated with binder degradation, for example, wavelengths of from 250 to 400 nm.
  • the UV absorber can avoid absorbing, or absorbs an insignificant amount of, visible light, e.g., wavelengths of from 400 to 700 nm, and can be non-opacifying.
  • the coating composition of the present disclosure may comprise at least one UV absorber such as a benzotriazole (including derivatives thereof), triazine (including derivatives thereof), triazole (including derivatives thereof), hindered amine light stabilizer (HALS, including derivatives thereof), oxanilide (including derivatives thereof), benzophenone (including derivatives thereof), and mixtures thereof.
  • a UV absorber such as a benzotriazole (including derivatives thereof), triazine (including derivatives thereof), triazole (including derivatives thereof), hindered amine light stabilizer (HALS, including derivatives thereof), oxanilide (including derivatives thereof), benzophenone (including derivatives thereof), and mixtures thereof.
  • Non-limiting examples of suitable benzotriazole UV absorbers include 2- (2'-hydroxy-5'-methylphenyl)-benzotriazole, 2-(3',5'-di-tert-butyl-2'- hydroxyphenyl)-5-chlorobenzotriazole, 2(2'-hydroxy-3',5'-di-tert- amylphenyl)benzotriazole, benzenepropanoic acid, 3-(2H-benzotriazol-2-yl)-5-(l,l- dimethylethyl)-4-hydroxy-,C7-9-branched alkyl esters, 2-(3',5'-bis(l-methyl-l- phenylethyl)-2'-hydroxyphenyl)benzotriazole, 2-(2-hydroxy-3- dimethylbenzylphenyl-5-(l,l,3,3-tetramethylbutyl))-2H-benzotriazole, iso-octyl-3- (3-(
  • the benzotriazole UV absorber may be Benzenepropanoic acid, 3-(2H-benzotriazol-2-yl)- 5-(l,l-dimethylethyl)-4-hydroxy-, methyl ester.
  • the UV absorber can comprise the composition commercially available under the trade name TINUVIN 1130 (BASF, Ludwigshafen, Germany).
  • HALS hindered amine light stabilizer
  • suitable hindered amine light stabilizer include Bis-(l-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacate, Bis-(N- methyl,2,2,6,6-tetramethyl-4-piperidinyl) sebacate, Methyl-(N-methyl,2,2,6,6- tetramethyl-4- piperidinyl) sebacate, Methyl l,2,2,6,6-pentamethyl-4-piperidyl sebacate, Bis(l,2,2,6,6-pentamethyl-4-piperidyl)sebacate, bis (2,2,6,6-tetramethyl-l- (octyloxy)-4-piperidinyl) ester, Bis (1, 2, 2, 6, 6-pentamethyl-4-piperidinyl)-[[3, 5-bis (1, 1 -dimethylethyl) -4- hydroxyphenyl] methyl] butyl mal
  • Non-limiting examples of suitable triazine UV absorbers include 2-(4-(2- hydroxy-3-tridecyl oxypropyl)oxy)-2-hydroxyphenyl)-4,6-bis (2,4,dimethylphenyl)- 1 ,3,5-triazine, 2-(4-(2-hydroxy-3 -dodecyl oxypropyl)oxy)-2-hydroxyphenyl)-4,6- bis(2,4-dimethylphenyl)-l ,3,5-triazine, and 2-(4-(2-hydroxy-3-(2'-ethyl)hexyl)oxy)- 2-hydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-l,3,5-triazine.
  • Triazine UV absorbers can include a mixture of 2-(4-(2-hydroxy-3-tridecyl oxypropyl)oxy)-2- hydroxyphenyl)-4,6-bis (2, 4, dimethylphenyl)- 1, 3, 5-triazine and 2-(4-(2-hydroxy-3- dodecyl oxypropyl)oxy)-2-hydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-l,3,5- triazine.
  • the UV absorber may be provided in a suitable carrier, such as an organic solvent.
  • the organic solvent can include ketones, acetates, esters, glycol ethers, aliphatic hydrocarbons, aromatic hydrocarbons, and mixtures thereof.
  • Non-limiting examples of suitable UV stabilizers include products under the tradenames CYASORB (Solvay, Butte, MT), UVINUL (BASF, Ludwigshafen, Germany), and TINUVIN (BASF, Ludwigshafen, Germany).
  • the UV absorber can be present in the coating compositions of the present invention in an amount of 0.01 to 5.0 percent by weight, such as 0.1 to 4.0 percent by weight, such as 0.1 to 3.0 percent by weight, such as 0.1 to 2.0 percent by weight, such as 0.1 to 1.0 percent by weight, with weight percent being based on the total weight of the coating composition.
  • the coating composition of the present disclosure can comprise at least one biocide compound.
  • a biocide can be added as a precautionary measure to preclude potential problems associated with yeast, mold, aerobic bacteria, and other biological products.
  • the biocide can provide antimicrobial protection of the coating composition in its "dry film” form after use.
  • suitable biocides include, but are not limited to, organotin biocides; methylene thiocyanate biocides; isothiazolinones biocides; nitro-biocides; carbamate biocides, chlorinated and brominated compounds; hydrazine derivatives; and combinations thereof.
  • the biocide can be present in the coating composition of the present disclosure in an amount from 0.01 to 4 percent by weight, such as 0.01 to 3.0 percent by weight, such as 0.01 to 2.0 percent by weight, such as 0.01 to 1.5 percent by weight, such as 0.05 to 1.2 percent by weight, with weight percent being based on the total weight of the coating composition.
  • the coating composition may include other additives, such as catalysts, other pigments and pigment pastes, dyes, fillers, stabilizers, thixotropic agents, antisagging agents, anti-gelling agents, insecticides, anti-settling agents, antifoaming agents, slip agents, flow and levelling agents, rheological modifiers, photo-initiators, matting agents, waxes, flame retardants, anti-static agents, loss of dry inhibitors, optical brighteners, adhesion promoters, diluents, elastomers, plasticizers, air release agents, desiccants, anti-crater additives, reinforcing agents, dispersing aids, substrate wetting agents, odorants, additional hardeners, and/or additional curable compounds.
  • additives such as catalysts, other pigments and pigment pastes, dyes, fillers, stabilizers, thixotropic agents, antisagging agents, anti-gelling agents, insecticides, anti-settling agents, antifoaming agents, slip agents
  • the coating compositions may include surface active agents, such as an anionic, cationic, or nonionic surfactant or dispersing agent.
  • surface active agents such as an anionic, cationic, or nonionic surfactant or dispersing agent.
  • Other resinous materials can be utilized in conjunction with the acrylic resin.
  • Various additives, when used, can comprise no more than about 30 percent by weight, such as no more than about 10 percent by weight, of the present coating compositions.
  • the coating composition may comprise further components, such as colorants.
  • the colorant component may comprise an inorganic or organic, transparent or nontransparent pigment.
  • Non-limiting examples of such pigments include titanium dioxide, iron oxides, mixed metal oxides, bismuth vanadate, chromium oxide green, ultramarine blue, carbon black, lampblack, monoazo and disazo pigments, anthraquinones, isoindolinones, isoindolines, quinophthalones, phthalocyanine blues and greens, dioxazines, quinacridones and diketo-pyrrolopyrroles; and extender pigments including silica, barium sulfate, magnesium silicate, calcium silicate, mica, micaceous iron oxide, calcium carbonate, zinc oxide, aluminium hydroxide and aluminium silicate, gypsum, feldspar, talcum, kaolin, and mixtures thereof.
  • the amount of pigment that can be used to form the coating composition can vary depending on the particular composition
  • the colorant can be present in the coating composition of the present disclosure in an amount of 0.01 to 10 percent by weight, such as 0. 1 to 8.0 percent by weight, such as 0.5 to 5.0 percent by weight, with weight percent being based on the total weight of the coating composition.
  • the coating composition may be formulated as a one package coating composition, also referred herein as a one-component (I K) coating composition.
  • a “1 K” or “one package” composition refers to a composition wherein all of the components are maintained in the same container after manufacture, during storage, etcetera.
  • the coating composition can be formulated as varnish, lacquer, paint, stain, enamel, printing ink, or floor covering and similar compositions.
  • the components of the coating composition of the present disclosure can be blended together to form the coating compositionby any means known in the art.
  • the components may be blended together using a Cowles blade or any known blade in the coating industry.
  • the coating composition of the present disclosure is suitable for application to, for example, porous substrates, such as paper, cardboard, particle board, fiber board, concrete, cement, brick, wood, and wood products.
  • Wood substrates are particularly suitable.
  • Various woods can be stained with the present coating composition, including, for example, oak, cedar, maple, pine, or any known wood substrate. These types of woods are often used in the preparation of, for example, kitchen cabinets, bath cabinets, tables, desks, dressers, and other furniture or floors.
  • the present disclosure also relates to a porous substrate coated at least in part with the coating composition.
  • the coating composition may also color the substrate, while allowing some of the substrate’s natural color and grain to show through.
  • the porous substrate may be wood.
  • the coating composition of the present disclosure can be applied to the substrate by any known method in the art.
  • Non-limiting examples of such application methods include spreading (e.g. with paint pad or doctor blade, or by brushing or rolling, or wiping), spraying (e.g. air-fed spray, airless spray, hot spray, and electrostatic spray), and flow coating (e.g. dipping, curtain coating, roller coating, and reverse roller coating). Multiple layers can be applied.
  • the present coating composition can then be cured by initiating oxidative cure of the binder components. Such oxidative cure can be accomplished by allowing the coated substrate to be exposed to ambient or elevated temperature conditions.
  • a substrate partially or fully coated with a coating composition of the present disclosure may be pre -treated before application of the coating composition.
  • the substrate may additionally or alternatively be post-treated after application of the coating composition, for example with any other compositions.
  • the coating composition can be applied and cured at ambient temperature conditions in the range of from -10°C to 50°C. Curing of the coating compositions can proceed rapidly, and in general can take place at a temperature within the range of from -10°C to +50°C, such as from 0°C to 40 °C, such as from 3 to 25°C. However, the coating compositions may be cured by additional heating.
  • the coating composition may be used as a single coating, a top coating, a base coating in a two-layered system, as a layer of a multi-layered system including a clear top coating composition, colorant layer, and base coating composition, and/or as a primer layer.
  • the present disclosure also relates to the use of the coating compositions as a coating for porous substrates in a varnish, lacquer, paint, stain, enamel, printing ink, or floor covering.
  • Example coating compositions were formulated within the parameters shown in Tables 1A - 1C. Component amounts are listed by percent weight based on total weight of the coating composition.
  • Components comprised fungicide, coalescent agents, antifoaming agent, biocide, wetting agent, rheological modifiers, silicon dioxide, and/or colorants.
  • Components comprised fungicide, coalescent agents, antifoaming agent, biocide, wetting agent, rheological modifiers, silicon dioxide, and/or colorants.
  • Components comprised fungicide, coalescent agents, antifoaming agent, biocide, wetting agent, rheological modifiers, silicon dioxide, and/or colorants.
  • Examples 1, 7, and 8 included a paraffin wax (non-micronized), whereas Examples 2-6 and 9 included a micronized wax component.
  • Examples 2-6 also included an acrylic resin that had a glass transition temperature of 17 to 27 °C, whereas Examples 7-8 included an acrylic resin with a lower glass transition temperature and Example 1 included a mixture of the acrylic resin used in Examples 2-6 and an acrylic resin with a lower glass transition temperature.
  • the example coating compositions that included a micronized wax component (examples 2-6 and 9) exhibited faster drying times than the example coating compositions that included a non-micronized wax component (examples 1 , 7, and 8).
  • examples 2-6 and 9 exhibiting drying times within 24 hours, whereas examples 1 , 7, and 8 were not yet dry at 72 hours.
  • a micronized wax component such as used in the relevant examples can function synergistically with the acrylic resin component of the binder to effectively reduce drying times.
  • examples 2-6 exhibited the greatest weather resistance, which is believed to at least partially result from the type of acrylic resin utilized.

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

Abstract

Une composition de revêtement à base d'eau comprend : (i) un composant liant comprenant une résine acrylique ; et (ii) un composant cire ; la composition de revêtement comprenant éventuellement en outre (iii) un absorbeur UV ; et (iv) un composé biocide.
PCT/IB2023/057541 2022-07-25 2023-07-25 Composition de revêtement à base d'eau et son utilisation WO2024023705A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5260135A (en) 1991-07-26 1993-11-09 Ppg Industries, Inc. Photodegradation-resistant electrodepositable primer compositions
CN103881495A (zh) * 2014-01-09 2014-06-25 北京展辰化工有限公司 一种高固含水性清面漆及其制备方法
CN103881500A (zh) * 2014-03-27 2014-06-25 中华制漆（深圳）有限公司 高耐候耐沾污水性户外木器白面漆其制备方法
CN105925107A (zh) * 2016-07-06 2016-09-07 铜陵青铜时代雕塑有限公司 一种铜雕塑用环氧-丙烯酸防腐水性哑光漆及其制备方法
US20220041776A1 (en) * 2019-03-07 2022-02-10 Celanese International Corporation Aqueous copolymer dispersions and their use in coating compositions
US11345828B2 (en) * 2017-12-21 2022-05-31 Columbia Insurance Co. Siloxane-modified binders and compositions thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5260135A (en) 1991-07-26 1993-11-09 Ppg Industries, Inc. Photodegradation-resistant electrodepositable primer compositions
CN103881495A (zh) * 2014-01-09 2014-06-25 北京展辰化工有限公司 一种高固含水性清面漆及其制备方法
CN103881500A (zh) * 2014-03-27 2014-06-25 中华制漆（深圳）有限公司 高耐候耐沾污水性户外木器白面漆其制备方法
CN105925107A (zh) * 2016-07-06 2016-09-07 铜陵青铜时代雕塑有限公司 一种铜雕塑用环氧-丙烯酸防腐水性哑光漆及其制备方法
US11345828B2 (en) * 2017-12-21 2022-05-31 Columbia Insurance Co. Siloxane-modified binders and compositions thereof
US20220041776A1 (en) * 2019-03-07 2022-02-10 Celanese International Corporation Aqueous copolymer dispersions and their use in coating compositions

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