EP2652045A1 - Granulés de pigments - Google Patents

Granulés de pigments

Info

Publication number
EP2652045A1
EP2652045A1 EP11788047.6A EP11788047A EP2652045A1 EP 2652045 A1 EP2652045 A1 EP 2652045A1 EP 11788047 A EP11788047 A EP 11788047A EP 2652045 A1 EP2652045 A1 EP 2652045A1
Authority
EP
European Patent Office
Prior art keywords
pigment
pigment granules
electrically conductive
granules
carrier
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP11788047.6A
Other languages
German (de)
English (en)
Inventor
Thomas Rathschlag
Carsten Griessmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Merck Patent GmbH
Original Assignee
Merck Patent GmbH
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 Merck Patent GmbH filed Critical Merck Patent GmbH
Publication of EP2652045A1 publication Critical patent/EP2652045A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
    • H01B1/08—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances oxides
    • 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
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
    • 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
    • C08K3/2279—Oxides; Hydroxides of metals of antimony
    • 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
    • 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
    • C09C1/0081—Composite particulate pigments or fillers, i.e. containing at least two solid phases, except those consisting of coated particles of one compound
    • 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
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
    • C09C3/045—Agglomeration, granulation, pelleting
    • 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
    • C09D5/24—Electrically-conducting paints
    • 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
    • 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
    • C09D7/62—Additives non-macromolecular inorganic modified by treatment with other 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • 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
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • 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
    • C01P2006/40—Electric properties
    • 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
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • C08K7/28—Glass

Definitions

  • the present invention relates to electrically conductive pigment granules and a process for their preparation and their use, for example, in plastic floors, surface coatings and
  • the invention also relates to electrically conductive surface coatings with such pigment granules.
  • Conductive surfaces are typically required in areas where friction can cause static charges, the energy of which can be dissipated in the form of electrical discharges. Static charges can arise anywhere where different
  • dissipative surface coatings or materials can be used.
  • dissipative coatings or materials in plastics, fibers and fabrics can be used.
  • Another application example is the use of dissipative
  • a measure of the ability to dissipate such static discharges is the Abieitschreib. It thus denotes the property of dissipating electrical energy. How high the Abieit impart is determined by the resistance of the material, expressed in ohms. The higher the
  • Materials which have at least three layers of plastic material.
  • the intermediate layers are not visible through the surface layers, have a different color than the surface layers and are formed of an electrically conductive film.
  • the granules are used as a floor or wall covering in the form of a film. This foil is made from the granules by thermal
  • the electrically conductive intermediate layers are connected together in the form of a wire network by the film-making process.
  • a film produced in this way can be used as a floor or wall covering which has a static discharge capability.
  • these intermediate layers may be interspersed with soot, wherein the
  • Graphite component of the carbon black contributes to the conductivity of the intermediate layer.
  • Component A consists of one or more conductive, platelet-shaped
  • Pigments, while components B consists of one or more conductive non-platelet pigments.
  • the platelet-shaped and the non-platelet-shaped pigments are provided with a conductive surface layer consisting of conductive metal oxides or metal oxide mixtures.
  • a conductive layer of antimony-doped tin oxide is used.
  • the platelet-shaped carrier material used are platelet-shaped effect pigments, for example natural or synthetic mica, phyllosilicates or glass platelets.
  • non-platelet pigments spherical or cube-shaped carrier materials can be used. Particular preference is given to using pigments coated with antimony-doped tin oxide.
  • Such conductive platelet-shaped pigments are commercially available under the name Minatec from Merck KGaA, Darmstadt. Conductive coatings can be produced from these conductive pigments comprising at least one component A and / or one component B.
  • Minatec.RTM ® pigments is in the production of bright, static dissipative coating materials in which the use of conductive carbon black and graphite components is not suitable, due to the black, dark ground color tone of the soot and graphite components.
  • Floor coverings can be produced at lower cost, but still Abieit refineen in the range of 10 3 -10 9 ⁇ and have a light color. As a result, the range of application of conductive pigments and pigment granules can be extended.
  • the pigment granules based on a carrier material such as polymer particles, glass beads, glass hollow sphere or the like, which are coated with one or more electrically conductive pigment, the desired
  • pigment granules In one aspect of the invention, therefore, pigment granules
  • the proportion of electrically conductive pigment can be reduced in an electrically conductive dielectric material without drastically impairing the removal ability.
  • the material with less material use and thus more economical to produce since smaller amounts of the electrically conductive pigment can be used. Due to the reduced concentration of electrically conductive pigment can with the
  • granules according to the invention formulated lighter conductive materials or conductive objects are designed with attractive colors decors.
  • Coated is understood to be the superficial coating of the at least one carrier material with the at least one electrically conductive pigment.
  • the at least one electrically conductive pigment is by physical forces and / or the adhesion promoter on the
  • a proportion of electrically conductive pigment may be loose and not fixed on the surface form.
  • granules in this application are all solid particle shapes conceivable in the art, such as e.g. Pellets, briquettes, pearlets, sausages or the tableted form to understand.
  • the particle sizes of the granules are preferably in the range of 0.025 to 150 mm, in particular 0.1 to 20 mm, and most preferably in the range of 0.05 to 6 mm.
  • L * stands for the brightness, where a value of 100 references a white color, while a value of 0 stands for the color black.
  • the green-red axis is indicated by the a * value, while the blue-yellow axis is indicated by the b * value.
  • the respective material can now be measured with appropriate color measuring devices and in the course of which the brightness L * can be determined.
  • the conductive, light pigment granules according to the invention preferably themselves have a brightness or an L * value of at least 40, in particular of at least 50, very particularly preferably of at least 60 and even of at least 80.
  • the light materials produced with these conductive pigment granules according to the invention can have a brightness or an L * value of at least 40, in particular of at least 50, for example of at least 60 and optionally even of at least 80.
  • the pigment granule As an essential ingredient, the pigment granules at least one electrically conductive pigment. Under an electrically conductive
  • Pigment is a pigment that can pass on the electrical current, for example when a discharge of static electricity occurs.
  • the electrically conductive pigment has a resistance value which allows such a discharge of the electrical current at least over the surface of the pigment body.
  • the electrical conductivity of the individual pigment bodies with one another comes about through the contact of the pigment bodies with one another in the pigment granulate or in an embodiment containing the pigment granulate.
  • the electrically conductive pigment may consist entirely of a conductive material or of a pigment support material provided with a conductive coating. In the case of a pigment carrier material provided with an electrically conductive coating, a further cost reduction can advantageously be achieved.
  • electrical Conductive pigments may preferably be formed platelet-shaped, or have a non-platelet-like design. In the case of the non-platelet-like formation, the electrically conductive pigments may have a needle-shaped, angular or angular shape. It is also possible to use g mixtures of different conductive pigments.
  • At least one electrically conductive pigment can be selected from the following group:
  • the proportion of electrically conductive pigment can be significantly reduced, without undermining the Abieitrich the pigment granules, even in processed form, significantly.
  • the need for wetting agent for wetting the electrically conductive pigments can be reduced, whereby the rheological properties, such as pumpability and / or sprayability, leveling properties and leveling ability, in the processing of the pigment granules can be improved.
  • the dust load during further processing can be significantly reduced, so that the use can be extended in construction sites.
  • platelet-shaped pigment support materials mica, kaolin, talc, metal flakes or polymer platelets can be used.
  • platelet-shaped pigment support material it is also possible to use all platelet-shaped effect pigments, for example platelet-shaped iron oxide, bismuth oxychloride or with colored or colorless pigments Metal oxides coated platelet-shaped materials such.
  • Phyllosilicates such as talc or kaolin, glass flakes, A Oa flakes or Si0 2 flakes. It can be used as a platelet-shaped pigment carrier material coated with metal oxides mica flakes. In this case, as metal oxides both colorless high-index metal oxides such as
  • titanium oxide or zirconium dioxide are used, as well as colored metal oxides, such as chromium oxide, nickel oxide, copper oxide,
  • Cobalt oxide and in particular iron oxides such.
  • Such metal oxide / mica pigments are (under the trade name Afflair ® and Iriodin ® Fa. Merck KGaA,
  • the conductive component of the pigment can consist of one or more metal oxides, metals or other conductive compounds, for example iron sulfide or polymers, such as polyacetylene.
  • Applying the conductive layer is done in a conventional manner, for example according to the method described in EP-A 139557.
  • Metal oxide mixtures can be used. A selection of such materials is known from EP-A 139557. However, it is also possible to use conductive pigments which consist entirely of a conductive material.
  • platelet-shaped, pigment support materials coated with antimony-doped tin oxide are commercially available under the name Minatec® from Merck KGaA, Darmstadt.
  • pigment mixtures of platelet-shaped, conductive pigments and non-platelet, conductive pigments such as
  • Conductive polymers which can be used are electrically self-conducting polymers, such as, for example, polyacetylenes, polyanilines, polyparaphenylenes, polypyrroles or polythiophenes.
  • polyethylene dioxithiophene PEDOT
  • Orgacon a commercially self-conducting polymer
  • MWCNT Multiwallcarbonnanotubes
  • metals all conceivable metals which are stable in the respective application can be used. Preference is given to using nanometals and preferably nanosilver and a nanosilver dispersion.
  • pigment granules which have a light color can advantageously be produced with these bright, electrically conductive pigments.
  • the color of the pigment granules is preferred
  • Light green tint, a light blue tint, ocher tinge or other tints from the RAL color range can advantageously shift a rather dark color, as is known when using graphite or carbon black, to lighter shades. This shift to bright shades can be specifically adjusted by the bright, electrically conductive pigments.
  • the proportion of electrically conductive pigment in the pigment granules is preferably 1 to 20% by weight, preferably 1 to 15% by weight and
  • the proportion of electrically conductive pigment can advantageously be significantly reduced by the use of support materials which are coated with the electrically conductive pigments, compared to a pigment granulate without such support materials, wherein Compared to pigment granules without support materials an equal or comparable Abieitrich the pigment granules occurs.
  • the pigment granules also contain at least one in addition to the electrically conductive pigments
  • carrier material is understood as meaning that component of the pigment granules to which the electrically conductive pigment has been coated by means of the adhesion promoter.
  • Support material can have a high transparency and a smaller size compared to the electrically conductive pigment.
  • Support materials can be present as individual particles.
  • At least one carrier material may be non-platelet-shaped, in particular spherical.
  • the ingestion of a larger volume by the carrier material is possible, wherein the Abieitposition of the pigment granules is further given by the coating of the carrier material with the at least one electrically conductive pigment. It can do that
  • Support material may be spherical or non-circular, such as fracture split, and thus have corners and edges.
  • At least one carrier material may also be designed to be electrically conductive.
  • the carrier material may be more conductive than the coating comprising the electrically conductive pigments.
  • this can take place a forwarding of the electrical current through the carrier material.
  • At least one carrier material may be a polymer particle, a glass bead, a glass hollow sphere, an amorphous or crystalline
  • Silica a ceramic grinding granules and / or a ceramic solid ball, z. B. steatite Mahlvollkugel, be.
  • Polymer particles also be hollow or fully formed. As a result, Polymer hollow spheres or polymer solid spheres can be used.
  • So can be used as a carrier material full glass balls and / or glass hollow spheres. Preference is given to full glass beads and particularly preferably hollow glass beads.
  • transparent supports such as e.g. Full glass spheres and hollow glass spheres, with their light transmission, the optical properties, eg. As the pearlescent or metallic luster, the pigment granules support.
  • the glass beads should be chemically resistant depending on the application.
  • glass solid or hollow glass spheres of soda lime glass main components: Si0 2 / CaO / Na 2 0
  • ECR glass ECR glass
  • C glass borosilicate glass or quartz glass are used.
  • mixtures of full glass beads and hollow glass beads can be used, preferably the carrier materials are mixed in such a way that physical and chemical properties, such as adhesion in the application medium and chemical resistance, correlate with aesthetic effects and economic considerations.
  • Full glass beads are commercially available, for example from the company Sovitec GmbH under the name Vialux or Microperl.
  • the particle sizes according to DIN 66165 Part 2, Edition 1987-04, can be determined.
  • the determination may also preferably be made by means of static laser light scattering, as described in ISO 13320, Edition 2009/10, respectively.
  • the Mie theory according to ISO 13320, edition 2009/10 is used as the measuring principle.
  • Patent application for the application of carrier particles are determined by dry measurement using a particle analyzer from Retsch, type "Horiba LA-950.” Glass hollow spheres are, for example, at 3M Germany GmbH under the trade name "3M Glass
  • the glass beads should be chemically resistant depending on the application.
  • glass solid or hollow glass spheres of soda-lime glass with the main components Si0 2 / CaO / Na 2 0, ECR glass, C glass borosilicate glass or quartz glass can be used.
  • Oil absorption 0.2-0.6 g oil / cm 3 (determined according to ASTM 0281-95).
  • Grain size 9-120 pm (determined according to DIN 66165-2)
  • glass hollow spheres or glass full spheres made of soda-lime glass with the main constituents Si0 2 / CaO / Na 2 O, ECR glass, C glass,
  • Borosilicate glass or quartz glass can be used with a
  • organic and inorganic pigments can be used for coloring or coating glass hollow spheres or glass solid spheres.
  • organic and inorganic pigments as in the "Pigment + Gearstofftabellen" by the author Lückert, published in Vincentz- Verlag 2002, 6th edition, described, can be used.
  • black pigments 72-94 white pigments, 216-299 red pigments and 326-361 blue pigments are described.
  • the colored or coated glass hollow spheres or glass solid spheres can be coated with electrically conductive pigments on the surface.
  • Grain size 5-65 m (determined according to DIN 66165-2).
  • steatite grinding granules and / or steatite solid balls are used.
  • ground granules comprise non-round particles produced by means of a granulation process, while solid spheres with pressed edges produced by the solid spheres are produced by the dry-pressing process.
  • Such steatite ground granules and / or steatite solid spheres are commercially available from Mühlmeier, Bärnau, Germany.
  • polymer particles are preferably those of plastics), such as.
  • thermoplastics or thermosets are used.
  • the polymer particles are preferably composed of polyolefins, in particular of polyethylene (PE) and polypropylene (PP), polystyrene (PS), polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), polycarbonate (PC),
  • Polyvinyl acetate copolymer PVAC
  • polyvinyl chloride PVC
  • EAA Ethylene acrylic acid copolymer
  • PVA polylactic acid
  • Particularly preferred carrier materials consist of PVC, in particular of spherical granules, for example in the company Geerkens
  • plastic powders or plastic granules often have particle sizes of 1 to 5 mm. These polymer particles can be previously melted in the preparation of the pigment granules according to the invention and then, for example, by granulation, for. B. underwater granulation, and optionally setting the
  • Grain size, z. B. by means of a perforated disc to the desired
  • Particle size and shape can be adjusted.
  • Mixtures of different carrier materials may also be used, e.g.
  • thermosets are thermosets.
  • the carrier materials are mixed in such a way that physical and chemical properties, such. As adhesion in the application medium and chemical resistance, with aesthetic effects and economic considerations, correlate.
  • Carrier material mixtures are preferably mixtures of two-component mixtures which can be mixed with one another in any ratio.
  • the ratio is preferably 1: 1 to 1:10 or 10: 1.
  • the support materials can be used in any combination for the pigment granules.
  • At least one carrier material may have a particle size of 0.01-100 mm, in particular 0.01-50 mm and optionally 0.1-10 mm. Preferred is a particle size of 0.025 - 5 mm.
  • the proportion of carrier material based on the pigment granules may be 80-99 wt.%. In particular, a proportion of 90-99 wt.% Is possible. Preferably, a proportion of 80-90 wt.%.
  • the wetting agent requirement can thereby be reduced and the theological properties during processing are improved. If sufficient support material is used, the desired properties of the pigment granules of the invention, e.g.
  • the polymer particles must not only be coated with the electrically conductive pigment, but they must also be glued together to form a free-flowing coarse "powder".
  • the weight ratio of carrier material to electrically conductive pigment may be from 1: 5 to 50: 1.
  • a weight ratio of 10: 1 to 20: 1 is preferred.
  • the pigment concentration is reduced, but nevertheless a sufficiently high conductivity is present.
  • the weight ratio of carrier material to electrically conductive pigment can also be used to control the conductivity.
  • Pigment granules may preferably have at least one adhesion promoter.
  • the adhesion promoter may preferably be selected from the group: Ethylene acrylic acid emulsion (EAA)
  • the conductive pigment can be fixed on the support material, which does not
  • the fixation can also reduce the dust emission during the processing of the pigment granulate.
  • adhesion promoters are especially those which dry physically. Particularly preferred as adhesion promoter aqueous
  • Emulsions are used, preferably EAA emulsions (ethylene acrylic acid copolymer), commercially available, for example, from the company Michel- man under the name “Michem Prime 4983 R", as well as emulsions and dispersions based on acrylated polypropylenes or low-chlorinated polypropylenes.
  • EAA emulsions and dispersions are commercially available, for example from Tramaco under the name "Trapylen 9310 W and" Trapylene 6700 W '.
  • the size of the EAA emulsion particles is preferably 20-300 nm.
  • the preferred EAA emulsions are preferably 65-85 parts water and 15-35 parts EAA.
  • Polypropylene emulsion particles or dispersion particles is preferably 50-5000 nm.
  • the wax emulsions preferably contain
  • the suitable wax emulsions preferably have a melting range of 50-160 ° C., in particular of 90-140 ° C. and very particularly preferably of 90-130 ° C.
  • adhesion promoters which are based on aqueous dispersions, such as. B. such
  • VAC / E / VVC VVC / E VC
  • Vinyl chloride (VC) / ethylene [E] / acrylic ester (AY) VC / E / AY
  • Vinyl chloride (VC) / ethylene [E] / vinyl laurate (VL) VC / EA / L
  • Vinyl acetate (VAC) / (ethylene) [E] / vinyl chloride (VC) VAC / E / VC
  • PVB polyvinyl butyral dispersions
  • PE Polyether
  • PU Polyurethane
  • PC Polycarbonate
  • PU Polyurethane
  • Adhesives based on resins and polymers which are dilutable with organic solvents or soluble in them are also suitable as adhesion promoters. Usually, these adhesion promoters are not water-soluble or water-dilutable. Examples of suitable raw materials can be found, for. B. in the Lackrohstofftabellen, Vincentz-Verlag, 10th edition, edition 2000, pages 62-622.
  • adhesion promoters examples are generally based on the following resins and polymers:
  • the adhesives that can be used as adhesion promoters are subdivided according to the hardening mechanism in:
  • Polymerization adhesives e.g.
  • polycondensation adhesives e.g.
  • hot melt adhesives e.g.
  • Moisture-reactive amorphous poly alpha olefin hot melt adhesive 1 K-APAO.
  • the proportion of adhesion promoter based on the pigment granules may be 0.05-20% by weight.
  • a proportion of 0.5-10% by weight is preferred.
  • a good adhesion of the electrically conductive pigment to the carrier material can be achieved by the specified proportions of adhesion promoter in the pigment granules, so that only slightly unbound, electrically conductive pigment is present in the pigment granules.
  • the at least one carrier material, the at least one electrically conductive pigment and the at least one adhesion promoter can be coordinated with one another in such a way that the pigment granulate or the use form which can be produced therefrom, as described below, has a light color.
  • Pigment granules may additionally contain at least one additive, as they are customary for use in application media from the fields of paints, coatings, powder coatings, plastics or the like.
  • additives and / or auxiliaries may include lubricants, release agents, stabilizers, antistatic agents, flame retardants, antioxidants, colorants, flexibilizers, plasticizers, such as.
  • Pigment granules are favorably influenced, so that the
  • the pigment granules contain wetting agents, for. As silicones, silanes and / or fluorosurfactants.
  • the proportion of additive in the pigment granules can be 0.05-10% by weight, based on the granules.
  • a proportion of 0.1-10 % By weight in particular from 0.1 to 5% by weight and optionally from 0.1 to 5% by weight.
  • carrier material In pigment granules, carrier material, adhesion promoter and electrically conductive pigment may be present in a weight ratio of 8: 1: 1 to 9.5: 0.25 0.25. Preferably, the weight ratio of 8.5: 0.5: 1.
  • pigment granules may preferably contain
  • additive preferably 1-5% by weight of additive (s), based on the total formulation of the pigment granules, wherein the total amount of all components in the pigment granules is 100% by weight.
  • Pigment granules may also contain at least one filler, at least one dye and / or at least one color pigment, in particular those which are customary in the field of plastics and / or paints. Based on the pigment granules, the total proportion of all components being 100% by weight, the proportion of dye, color pigment and / or filler may be up to 10% by weight.
  • At least one filler Through the use of at least one filler, at least one
  • the pigment granules specifically adjustable.
  • the conductive granules can be color matched to the requirements of the application. It is advantageous z.
  • white pigments or fillers if a light color in the application is needed.
  • a process for the production of pigment granules is proposed in which at least one electrically conductive pigment and at least one support material with at least one adhesion promoter and optionally at least one additive, filler, dye and / or color pigment are mixed simultaneously or successively ,
  • Pigment granules are relatively easy to produce. As a possible manufacturing process are the gentle mixture of the individual
  • Components comprising an electrically conductive pigment
  • Carrier material, adhesion promoter, optionally colorant and / or other additives, and to call a subsequent rotogranulation are mixed with a mixer in which the carrier material, the adhesion promoter and optionally additives and the electrically conductive pigment or the mixture of electrically conductive pigments and optionally further organic and / or inorganic pigments.
  • the granules are rounded to the intended particle size on a horizontally rotating pelletizing plate.
  • the gentle drying of the raw granules in a fluidized bed, z. B. in a fluidized bed or fluidized bed dryer preference is given to the embodiment in a fluidized-bed dryer.
  • Adhesive and carrier material is variable and can for example also take place in such a way that the electrically conductive pigment is initially charged and subsequently with the adhesion promoter, the carrier material and, if appropriate,
  • Additives and / or colorants is mixed. This embodiment is particularly preferred.
  • the electrically conductive pigments, the support material and the adhesion promoter and, if appropriate, additives are mixed with one another.
  • the carrier material at least partially or completely coated or coated with the electrically conductive pigment by the adhesion promoter.
  • Enclosing and "gluing" of the carrier material with the electrically conductive pigment is very particularly preferred.
  • the use of the pigment granules in printing inks, paints, lacquers, powder coatings, surface coatings, plastic applications and / or plastics is proposed. Particularly preferred is the use of the pigment granules according to the invention in floors and / or as a PVC coating.
  • a surface coating is proposed with a pigment granules, wherein the pigment granules comprises a carrier material which is coated by means of an adhesion promoter with at least one electrically conductive pigment.
  • a bright surface coating can be formed by the pigment granules according to the invention.
  • This bright surface coating is also conductive, abrasion resistant and therefore cost-effective due to the use of only a small proportion of electrically conductive pigment.
  • Such a surface coating may preferably be applied to one of the following elements: a floor, a garage floor, a floor in the medical
  • the surface coating is white to light gray and optionally tinted in color, according to the RAL color range.
  • the surface coating may have a conductivity value of 10 3 to 10 9 ohms.
  • the pigment granules according to the invention For the preparation of the pigment granules according to the invention, a homogeneous mixing is to be ensured.
  • the mixture is made using an Eirich R02 mixer.
  • the moist plastic / pigment / polymer mixture produced in this way is pelleted on an Eirich pelletizing plate TR 04. There will be the
  • Target grain size set If the nominal grain size is set, is added with the portionwise entry of the total amount of water-moist
  • the nominal size is particularly controlled by the dimension (size expansion in mm) of the plastic granules used and is intended in the
  • portions between 50-100 g are entered, which can be added within a short time (1 kg about 10-15 min).
  • Coarser aggregates accumulate in the middle of pelleting arising "material flow kidney”. These are picked up with a small shovel, crushed by hand and added again.
  • the moist, granulated mixture is at 40 - 60 ° C, in a
  • the pigment granules thus obtained are abrasion-resistant and dimensionally stable.
  • the produced compacts A, B, C, D have the following dimensions:
  • Length 20 cm; Width: 15 cm; Thickness: 5 mm.
  • Example 3 Measurement of the soft PVC compacts A, B, C, D.
  • the surface resistances are determined in accordance with DIN-EN-61340-2-3, "Electrostatic” of December 2000. The visual color impression of the coating is determined.
  • the use concentration [%] is the percentage of conductive pigment in 100 g of total composition of conductive PVC floor mass.
  • the test series shows that pigment granules according to the invention can be used to reduce the percentage of electrically conductive pigment by a factor of> 10 with an approximately constant surface resistance.
  • the color of the compact increases with increasing pigment content, so that Pressling C has the brightest hue, followed by A and B. Pressling D has the comparatively darkest hue on.

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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)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Conductive Materials (AREA)
  • Non-Insulated Conductors (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

La présente invention a pour objet des granulés de pigments conducteurs, qui se caractérisent par le fait qu'ils sont basés sur un matériau de support, le matériau de support étant revêtu au moyen d'un agent de liaison d'un ou de plusieurs pigments électriquement conducteurs. Les granulés de pigments selon la présente invention trouvent de préférence une utilisation dans des revêtements de surface de couleur claire, qui sont conçus de sorte à être électriquement conducteurs.
EP11788047.6A 2010-12-16 2011-11-17 Granulés de pigments Withdrawn EP2652045A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010054803A DE102010054803A1 (de) 2010-12-16 2010-12-16 Pigmentgranulate
PCT/EP2011/005809 WO2012079677A1 (fr) 2010-12-16 2011-11-17 Granulés de pigments

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EP2652045A1 true EP2652045A1 (fr) 2013-10-23

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US (1) US20130264523A1 (fr)
EP (1) EP2652045A1 (fr)
JP (1) JP2014511120A (fr)
KR (1) KR20130132918A (fr)
CN (1) CN103261332A (fr)
DE (1) DE102010054803A1 (fr)
MX (1) MX2013006324A (fr)
RU (1) RU2013132616A (fr)
WO (1) WO2012079677A1 (fr)

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EP2960310B1 (fr) * 2014-06-27 2016-08-17 Henkel AG & Co. KGaA Revêtement conducteur transparent pour substrats rigides et flexibles
CN104356737B (zh) * 2014-10-24 2016-06-08 天津翔盛粉末涂料有限公司 一种导电粉末涂料专用高导电材料及制备方法
DE102014018276A1 (de) * 2014-12-12 2016-06-16 Merck Patent Gmbh Elektrisch leitfähige, farbige Interferenzpigmente
GB201607831D0 (en) * 2016-05-05 2016-06-22 Landa Labs 2012 Ltd UV protective compositions and their use
CA2992525C (fr) * 2015-07-22 2023-07-18 Landa Labs (2012) Ltd. Compositions de protection contre le rayonnement ultraviolet comprenant des flocons polymeres
CN106189371A (zh) * 2016-07-11 2016-12-07 滁州格锐矿业有限责任公司 一种改性云母粉及其制备方法
CN107163830B (zh) * 2017-07-19 2019-04-02 安徽三品技术服务有限公司 一种耐磨杀菌地板漆
CN109161286A (zh) * 2018-08-17 2019-01-08 惠州海翔文教用品有限公司 一种水性丝印颜料及其制备方法
CN111755146B (zh) * 2020-06-28 2022-02-22 深圳市华科创智技术有限公司 一种低b*值高透过率导电膜
CN113583479A (zh) * 2021-06-29 2021-11-02 福建师范大学 一种利用墨脱石锅加工过程中产生的固废物制作银白色珠光颜料的方法
CN114456648A (zh) * 2022-02-22 2022-05-10 苏州纳普乐思纳米材料有限公司 防静电涂料、制备方法及其涂层

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Also Published As

Publication number Publication date
CN103261332A (zh) 2013-08-21
DE102010054803A1 (de) 2012-06-21
RU2013132616A (ru) 2015-01-27
KR20130132918A (ko) 2013-12-05
MX2013006324A (es) 2013-06-28
US20130264523A1 (en) 2013-10-10
WO2012079677A1 (fr) 2012-06-21
JP2014511120A (ja) 2014-05-08

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