Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
  • C08J3/00—Processes of treating or compounding macromolecular substances
  • C08J3/20—Compounding polymers with additives, e.g. colouring
  • C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
  • C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
• • 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
  • C09D11/00—Inks
  • C09D11/02—Printing inks
  • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
  • C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
• • 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
  • C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
  • C09D161/02—Condensation polymers of aldehydes or ketones only
• • 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
  • C09D17/003—Pigment pastes, e.g. for mixing in paints containing an organic pigment
• • 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
  • C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
  • C09D17/005—Carbon black
• • 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
  • C09D201/00—Coating compositions based on unspecified macromolecular 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
  • C09D5/02—Emulsion paints including aerosols
  • C09D5/024—Emulsion paints including aerosols characterised by the additives
  • C09D5/028—Pigments; Filters
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
  • C08L71/02—Polyalkylene oxides

Definitions

• the invention relates to coating compositions comprising at least one solvent-containing binder, an aqueous universal pigment preparation and optionally auxiliaries and additives.
• the coating compositions are used as paints, varnishes, adhesives, inks or printing inks for the coating of objects from e.g. As metals and plastics.
• the coating compositions are suitable for all customary application methods which are used in modern metal and plastic coating and the printing ink industry, such as, for example, As the spray application, the electrostatic spray application and printing by means of various printing processes.
• colored coating materials are prepared in such a way that first a pigment preparation is produced, which is then lacquered with a base lacquer.
• fillers and pigments are dispersed in liquid media.
• it is generally used dispersants, so as to reduce the mechanical shear forces required for effective dispersion of the solids and at the same time to achieve the highest possible fill levels.
• the dispersants promote the breaking up of agglomerates, wet and / or occupy the surface of the particles to be dispersed as surface-active compounds and stabilize them against undesired reagglomeration.
• wetting agents and dispersants facilitate the incorporation of pigments and fillers in the production of paints and varnishes, which, as important formulation constituents, improve the visual appearance and the physico-chemical properties Significantly determine the properties of coatings. For optimum utilization, these solids must be evenly distributed in paints and varnishes, on the other hand, the distribution once achieved must be stabilized.
• the stabilizing component is also often perceived by binder components. Such binders are also valuable components for coating materials because they contribute to faster drying and increasing the hardness of the resulting films.
• solvent-based coating materials usually solvent-based pigment preparation based on various wetting and dispersing agents are prepared, which are dissolved with various solvent-based masterbatches.
• solvent-based pigment preparations based on various wetting agents and dispersants are prepared, which are then dissolved with various aqueous masterbatches.
• a universal compatibility with other binders is important for use in universal pigment preparations.
• Such binders which can be used in pigment preparations with universal compatibility and solubility are described, for example, in US Pat. As described in DE 44 04 809.
• alkylphenol ethoxylates or fatty alcohol alkoxylates are used which form a steric
• Block Copolymers Polyalkylene oxides are toxicologically harmless, strongly adsorptive but less foam-stabilizing. They are z. B. in the
• Pigment preparations are added here also defoaming active substances. However, these substances have other negative side effects, such as unwanted surface defects. The use of many dispersing additives is ruled out since the water resistance or the light resistance of coatings is adversely affected.
• PCT / EP2006 / 050437 describes pigment preparations based on the combination of block copolymers, styrene oxide-containing polyalkylene oxides and ketone-aldehyde resins, which have a broad compatibility with binders used and solubility in organic solvents used and in water, wherein the foaming is suppressed in aqueous pigment preparations .
• solvent-containing pigment preparations are outstandingly suitable for the preparation of solvent-containing and-when using suitable solvents, such as glycols-aqueous coating materials.
• PCT / EP2006 / 050437 describes the use of aqueous pigment preparations for the production of purely aqueous coating materials with outstanding properties.
• the present invention therefore an object of the invention to find coating compositions, which by the use of solvent-containing, pigmented or unpigmented masterbatches and an aqueous Universalpigment Georgparation be prepared.
• aqueous universal pigment preparation essentially containing a combination of block copolymers, styrene oxide-containing polyalkylene oxides and ketone-aldehyde resins, pigments and water.
• an aqueous universal pigment preparation essentially comprising a combination of block copolymers, styrene-containing polyalkylene oxides and ketone-aldehyde resins, pigments and water, in solvent-borne, pigmented or unpigmented master paints leads to stable coating systems.
• the invention relates to coating compositions, essentially containing
• Polyalkylenoxids with ii) 5 to 95 wt .-% of a non-hydrogenated ketone-aldehyde resin, and iii) 0 to 80% by weight of at least one solvent, the sum of the weights of components i) to iii) being 100% by weight, and iv) colorants and v) fillers and vi) 0 to 10% by weight
• iii 5 to 95 wt .-% of a non-hydrogenated ketone-aldehyde resin
• iii) 0 to 80% by weight of at least one solvent the sum of the weights of components i) to iii) being 100% by weight
• iv) colorants and v) fillers and vi) 0 to 10% by weight Auxiliaries and additives
• the amount of the sum of component i), component ii) and component iii) 2 to 95 wt .-%, based on the sum of the weights of the respective components iv) and v), and the amount of component v) in the Pigment preparation can also be 0 wt .-%
• Basecoats used as component A), in which the pigment preparations according to the invention can preferably be introduced are all solvent-containing systems known to the person skilled in the art.
• these systems may be physically drying, oxidatively drying, or otherwise reactive in 1K or 2K paints.
• Suitable binders are a variety of physically drying resins, for example nitrocellulose, polyvinyl butyral, VC copolymers, acrylates, methacrylates, cellulose esters, cellulose ethers, hydrocarbon resins, phenolic resins, rosin resins, maleate resins, polystyrene resins, silicone resins, rubber-based coating resins such as cyclo rubber, chlorinated rubber, chlorinated polyolefins or oligobutadienes, polyolefins, polyvinyl esters, polyvinyl alcohols, polyvinyl acetals, epoxies, amino resins, amido resins and polyester resins.
• nitrocellulose polyvinyl butyral, VC copolymers
• acrylates methacrylates
• cellulose esters cellulose esters
• cellulose ethers hydrocarbon resins
• phenolic resins rosin resins
• maleate resins polystyrene resins
• Oxidatively drying coating materials are, for example, alkyd resins.
• 1 K coating materials are based, for example, on (meth) acrylate, epoxy, polyvinyl acetate, polyester or polyurethane resins. These resins may also be unsaturated, ie contain acrylate or methacrylate double bonds such as (meth) acrylated (meth) acrylate resins, epoxy (meth) acrylate resins, polyester (meth) acrylate resins, polyether (meth) acrylate resins or
• Polyurethane (meth) acrylate resins are also those based on hydroxyl-containing polyacrylate or polyester resins with melamine resins or blocked polyisocyanate resins as crosslinkers.
• Useful 2K coating materials are, for example, those based on polyepoxide systems or on hydroxyl-containing polyacrylate or polyester resins with non-blocked polyisocyanate resins as crosslinkers.
• the aqueous universal pigment preparations used as components B) comprise as wetting agents and dispersants at least one block copolymeric, styrene oxide-containing polyalkylene oxide i) and at least one ketone-aldehyde resin ii).
• all block copolymers, styrene-containing polyalkylene oxides are suitable as component i).
• styrene oxide-containing polyalkylene oxides B) i) are z. As described in EP 1 078 946. They have the general formula I:
• R 1 O (SO) a (EO) b (PO) c (BO) d R 2 , wherein R 1 is a straight-chain or branched or cycloaliphatic radical with 8 to
• R 2 hydrogen, an acrylic radical, alkyl radical or carboxylic acid radical having in each case 1 to 8 C atoms,
• ketones for the preparation of component B) ii all known ketones can be used. These are ketones with aliphatic, cycloaliphatic, aromatic hydrocarbon radicals, which may be the same or different and may in turn be substituted by the said hydrocarbon radicals in the hydrocarbon chain and optionally contain phenols and / or urea or its derivatives.
• the preferred non-hydrogenated ketone-aldehyde resins B) ii), which are described in DE 44 04 809, are prepared from cycloaliphatic ketones, aldehyde and optionally other monomers.
• ketones III 0 to 60 mol%, based on all ketones used, other ketones with aliphatic, cycloaliphatic, aromatic hydrocarbon radicals, these being identical or different and in turn with said
• Hydrocarbon radicals may be substituted in the hydrocarbon chain and, optionally, phenols and / or urea or its derivatives.
• alkyl-substituted cyclohexanones I can be mentioned 4-tert-amylcyclohexanone, 2-sec-butylcyclohexanone, 2-tert-butylcyclohexanone, 4-tert-butylcyclohexanone, 2-methylcyclohexanone and 3,3,5-thymethylcyclohexanone , Particularly preferred C1 to C8 alkyl-substituted cyclohexanones are 4-tert-butylcyclohexanone and 3,3,5-thmethylcyclohexanone.
• aldehyde component in general and especially as II.
• unbranched or branched aldehydes such.
• formaldehyde acetaldehyde, n-butyraldehyde and / or iso-butyraldehyde, valeric aldehyde and dodecanal, etc.
• suitable aldehydes can be used.
• the preferred formaldehyde is usually used as about 20 to 40% by weight aqueous or alcoholic solution (eg in methanol or butanol). Other uses of formaldehyde such.
• Aromatic aldehydes such as. As benzaldehyde, may also be included in mixtures with formaldehyde. Preference is given to an aqueous or alcoholic solution of formaldehyde.
• ketones are acetone, acetophenone, methyl ethyl ketone, heptanone-2, pentanone-3, methyl isobutyl ketone, cyclopentanone, cyclohexanone, cyclododecanone, mixtures of 2,2,4- and 2,4,4-trimethylcyclopentanone, cycloheptanone and cyclooctanone.
• the mixing ratio of the block copolymers according to the invention, styrene oxide-containing polyalkylene oxides and the ketone-aldehyde resins is 95: 5 to 5: 95. If more than 50% by weight is used in this mixture.
• Ketone-aldehyde resin must, for reasons of viscosity, be an auxiliary solvent B) iii ) be used.
• component B iii) is mainly water into consideration, since it is an aqueous Universalpigment ceremoniesparation.
• Organic solvents include, for example, alcohols, esters, ketones, ethers, glycol ethers, aromatic hydrocarbons, hydroaromatic hydrocarbons, halogenated hydrocarbons, terpene hydrocarbons, aliphatic hydrocarbons, ester alcohols, dimethylformamide or dimethyl sulfoxide.
• component A) or as component B iv) can be used as colorants pigments and / or dyes.
• pigments for example, inorganic or organic pigments and carbon blacks can be used. Titanium dioxides and iron oxides may be mentioned by way of example as inorganic pigments.
• Suitable organic pigments are, for example, azo pigments, metal complex pigments, anthraquinoid pigments, phthalocyanine pigments, polycyclic pigments, in particular those of the thioindigo, quinacridone, dioxazine, pyrrolo, naphthalenetetracarboxylic, perylene, isoamidoline (on), flavanthrone , Pyranthrone or isoviolanthrone series.
• Gas blacks, flame blacks or furnace carbon blacks can be used as carbon blacks. These carbon blacks can additionally be post-oxidized and / or beaded.
• Natural dyes are animal dyes such as carmine, kermes, lac dye dyes, Indian yellow, purple, sepia or gallstone, and plant dyes such as indigo, alizarin dyes, flavonol dyes, brasil group dyes, or paint resins such as dragon's blood or gummi-gum ,
• Synthetic dyes include, for example, basic dyes and dye bases, acid dyes and water-soluble metal complex dyes, alcohol and ester-soluble dyes, and oil and fat soluble dyes.
• fillers may also be used in component A) or as component B v). They are usually powdery, practically insoluble in the application medium substances. They are mainly obtained from naturally occurring minerals by mining, cleaning, grinding and subsequent classification in grain fractions. But also synthetic Products, such as sulfates or carbonates, are used as fillers when it comes, for example, to purity (brightness) or special fineness. In contrast to pigments, fillers generally have a low hiding power. In addition to the increase in volume (cheapening) they show in the film very special effects, such. As reflection, surface texture, abrasion or stone chip resistance.
• Fillers which can be dispersed in aqueous and / or solventborne paints are, for example, those based on kaolin, talc, mica, other silicates, quartz, christobalite, wollastonite, perlite, diatomaceous earth, fiber fillers, aluminum hydroxide, barium sulfate or calcium carbonate.
• component A) or as component B vi) it is possible to use all auxiliaries and additives known to the person skilled in the art for coating materials and pigment preparations. These include, for example, defoamers, deaerators, rheology aids, surface additives, the z. Lubricity, scratch resistance, anti-blocking, flow and gloss, substrate wetting additives, driers, stabilizers or biocides.
• the invention also provides a process for the preparation of coating compositions, comprising essentially A) from 50 to 99% by weight of at least one solvent-borne basecoat substantially comprising at least one binder, at least one solvent, B) from 1 to 50% by weight of an aqueous universal pigment preparation, essentially containing the mixture product of i) 95 to 5% by weight of at least one block copolymer, styrene oxide-containing
• Polyalkylenoxids with ii) 5 to 95 wt .-% of a non-hydrogenated ketone-aldehyde resin, and iii) 0 to 80 wt .-% of at least one solvent, wherein the sum of the weights of component i) to iii) 100 wt. -%, and iv) colorants and v) fillers and vi) 0 to 10 wt .-% auxiliaries and additives
• Component iii) 2 to 95 wt .-%, based on the sum of the weights of the respective components iv) and v), and the amount of component v) in the pigment preparation may also be 0 wt .-%,
• component B) with component A) and component C) at 20 are mixed in a suitable stirrer to 80 0 C.
• component B) The preparation of component B) is carried out at temperatures of 20 to 80 0 C in a Dispermaten, Scandex mixer, Red Devil, Einwalzenstuhl, three-roll mill, Bead mill or other suitable aggregate.
• Component B) of block-copolymeric, styrene-containing polyalkylene oxides i) and ketone-aldehyde resins ii) can either be mixed in advance with the pigments or dyes to be dispersed or dissolved directly in the aqueous or solvent-containing dispersing medium before or simultaneously with the addition of component B iv) , Thereafter, the component B) is mixed with the component A) and optionally component C) at 20 to 80 0 C in a suitable stirring unit such as a dissolver or Dispermaten.
• the invention also provides the use of coating compositions, essentially containing
• Polyalkylenoxids with ii) 5 to 95 wt .-% of a non-hydrogenated ketone-aldehyde resin, and iii) 0 to 80 wt .-% of at least one solvent, wherein the sum of the weights of component i) to iii) 100 wt.
• compositions according to the invention are distinguished by good environmental compatibility. In addition, they are economical, since the aqueous pigment preparation, which is usually used for aqueous coating materials, can now also be used for solvent-containing coating materials.
• the resulting coating compositions according to the invention are storage-stable. The technological properties of the coatings depend on the base varnish used.
• This blue pigment preparation with a viscosity of 58 mPa.s was readily stirrable and foam-free. It remained stable even after storage at 50 ° C. for more than one week.
• This black pigment preparation was easy to stir and foam-free.
• the starting materials listed in the table were used with the aid of 2 mm glass beads in Dispermat CV 20 min. long at 2400 U / min and a jacket temperature of 25 ° C stirred. Subsequently, the white Mittelölalkydlack was dried for 24 h at room temperature. The ratio of binder (solid) to white pigment was 1: 0.8.
• the pigment preparations 4) and 5) were initially charged and the white stock paint (6) was added in each case in portions.
• Table 2 gives the coating compositions.
• compositions according to the invention based on aqueous universal pigment preparations and a solvent-containing, white alkyd paint, exhibited by way of example, had good drying, high gloss and good mechanical and coloristic properties.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Wood Science & Technology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Inorganic Chemistry (AREA)
• Dispersion Chemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Health & Medical Sciences (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Paints Or Removers (AREA)
• Adhesives Or Adhesive Processes (AREA)

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Citations (5)

• 2006
  • 2006-06-09 DE DE102006026759A patent/DE102006026759A1/de not_active Withdrawn
• 2007
  • 2007-05-14 WO PCT/EP2007/054652 patent/WO2007141115A2/de active Application Filing
  • 2007-06-08 CN CNA2007101102661A patent/CN101085899A/zh active Pending

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