EP0621889A1 - Pigments a eclat ameliore - Google Patents

Pigments a eclat ameliore

Info

Publication number
EP0621889A1
EP0621889A1 EP92923792A EP92923792A EP0621889A1 EP 0621889 A1 EP0621889 A1 EP 0621889A1 EP 92923792 A EP92923792 A EP 92923792A EP 92923792 A EP92923792 A EP 92923792A EP 0621889 A1 EP0621889 A1 EP 0621889A1
Authority
EP
European Patent Office
Prior art keywords
metal oxide
particles
pigments
platelet
shaped
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Withdrawn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
EP92923792A
Other languages
German (de)
English (en)
Inventor
Constanze Prengel
Klaus Bernhardt
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 EP0621889A1 publication Critical patent/EP0621889A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C09C1/0015—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
    • C09C1/0021—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings comprising a core coated with only one layer having a high or low refractive index
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/11—Encapsulated compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/29—Titanium; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/02—Preparations containing skin colorants, e.g. pigments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y5/00—Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
    • 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
    • C08K9/00—Use of pretreated ingredients
    • C08K9/02—Ingredients treated with inorganic substances
    • 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
    • C09D7/41—Organic pigments; Organic dyes
    • 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
    • C09D7/66—Additives characterised by particle size
    • C09D7/67—Particle size smaller than 100 nm
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/41—Particular ingredients further characterized by their size
    • A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/41—Particular ingredients further characterized by their size
    • A61K2800/413—Nanosized, i.e. having sizes below 100 nm
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/42—Colour properties
    • A61K2800/43—Pigments; Dyes
    • 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
    • C08K3/34—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
    • C09C2200/10—Interference pigments characterized by the core material
    • C09C2200/1004—Interference pigments characterized by the core material the core comprising at least one inorganic oxide, e.g. Al2O3, TiO2 or SiO2
    • 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
    • C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
    • C09C2200/10—Interference pigments characterized by the core material
    • C09C2200/102—Interference pigments characterized by the core material the core consisting of glass or silicate material like mica or clays, e.g. kaolin
    • 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
    • C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
    • C09C2200/30—Interference pigments characterised by the thickness of the core or layers thereon or by the total thickness of the final pigment particle
    • C09C2200/301—Thickness of the core
    • 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
    • C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
    • C09C2200/50—Interference pigments comprising a layer or a core consisting of or comprising discrete particles, e.g. nanometric or submicrometer-sized particles
    • C09C2200/505—Inorganic particles, e.g. oxides, nitrides or carbides
    • 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
    • C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
    • C09C2200/50—Interference pigments comprising a layer or a core consisting of or comprising discrete particles, e.g. nanometric or submicrometer-sized particles
    • C09C2200/507—Organic particles, e.g. polymers or dyes

Definitions

  • the invention relates to platelet-shaped pigments which are doped with metal oxide particles, have high opacity and improved gloss.
  • Platelet-shaped pigments which, in addition to having a high gloss, have satisfactory interference and have sufficient hiding power, are often very difficult to produce. Especially in the manufacture of colored platelet-shaped pigments, which are usually caused by
  • platelet-shaped substrates which are covered with one or more metal oxide layers are distinguished by interference and gloss, but have an insufficient covering power due to the transparent material.
  • the hiding power can be increased by the deposition of relatively rough metal oxide layers, but the gloss decreases drastically.
  • the use of metal substrates as platelet-shaped carrier materials also leads to a high
  • the object of the present invention was to provide new pigments with favorable properties which in particular meet the aforementioned requirements and also represent valuable materials for technical use.
  • a platelet-shaped pigment with a higher gloss and an improved hiding power can be produced compared to pigments which are obtained by conventional mixed precipitation will .
  • the invention thus relates to platelet-shaped pigments with high gloss and high hiding power, consisting of a platelet-shaped carrier material which is covered by an inorganic matrix in which metal oxide and / or dye particles are contained in the submicron range, the coating being highly homogeneous .
  • the invention also relates to a process for the production of platelet-shaped pigments with improved gloss and hiding power, platelet-shaped substrates in aqueous suspension being coated with a metal oxide or metal oxide hydrate layer by hydrolysis of metal salts and then separated, optionally washed, dried and annealed, characterized in that
  • the particles have a size in the submicrometer range.
  • the invention also relates to modified processes for the preparation of the pigments according to the invention and to the use thereof.
  • the pigments according to the invention consist of a platelet-shaped inorganic carrier material, such as, for example, glass, kaolin, muscovite, ilmenite or particularly preferably mica.
  • This platelet-shaped material is formed by precipitation with a metal hydroxide layer, in which
  • Metal oxide and / or organic dye particles are incorporated, coated, but the metal oxide and / or organic dye particles are entrained when the hydroxide layer is deposited and there is no mixed precipitation in the conventional sense.
  • the platelet-shaped substrates preferably have a thickness between 0.1 and 5 ⁇ m, but in particular between 0.2 and 4.5 ⁇ m.
  • the linear expansion in the other two dimensions is usually between 1 and 250 ⁇ m, particularly preferably between 2 and 200 ⁇ m.
  • Suitable matrix oxides are, for example, silicon dioxide, silicates, boron trioxide, borates, aluminum oxide, aluminates or particularly preferably titanium dioxide, and also all other materials known per se in the production of platelet-shaped pearl and colored gloss pigments.
  • soluble metal salts preferably from halides, sulfates or nitrates, particularly preferably from chlorides, by hydrolysis at appropriate pH values.
  • the metal oxide and / or organic dye particles embedded in the matrix have a size of 10-40 nm. They are therefore significantly smaller than the platelet-shaped pigment or as the metal oxides produced by mixed precipitation and are entrained and precipitated when the matrix oxide is precipitated the interstices of the matrix pack are built in, as a result of which a higher pack density and associated higher opacity and a higher gloss are produced.
  • the metal oxide and / or organic dye particles are generally randomly incorporated and preferably of amorphous or spherical shape.
  • Suitable metal oxide particles are all known stable inorganic oxides which do not react with the precursor materials of the matrix in the production of the pigments according to the invention.
  • the metal oxide particles can be colorless or colored and are preferably pure
  • organic pigment particles In addition to inorganic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles, organic pigment particles
  • Pigment particles are used, in particular temperature-stable organic pigments being preferred. In many cases, the manufacturing conditions of the invention
  • Pigments e.g. can be varied by reducing the drying and, if appropriate, annealing temperature while increasing the drying or annealing time or also by other measures such that less stable organic pigment particles can also be used. In addition, it is frequently observed that
  • organic pigment particles phthalocyanines, varnish products of basic dyes with heteropolyacids, anthroquinones, phenazines, phenoxazines, diketopyrrolopyrroles or perylenes.
  • the pigment particles listed here are also known, as are processes for their preparation (see, for example, H. Kittel,ticianliche Verlagsgesellschaft, Stuttgart 1960, G. Benzig, pigments for paints, Expert Verlag 1988) and they are generally commercially available. However, these pigment particles are only to be understood as examples, and are only intended to illustrate the invention without limiting it in any way. In addition to the pigment particles explicitly mentioned, a large number of further pigment particles can be used.
  • wetting agents to the precursor solution for better dispersion of the pigment particles, e.g. non-ionic or ionic commercial types.
  • non-ionic or ionic commercial types e.g. Polyethylene and polypropylene glycols are well suited.
  • the type nor the amount of the wetting agent added are critical, but in general the proportion of the wetting agent is at most 2% by weight, based on the dispersion.
  • platelet-shaped carrier materials preferably mica
  • a titanium salt solution preferably a titanium tetrachloride solution which simultaneously contains TiO 2 particles in the rutile modification.
  • These rutile particles are carried away during the precipitation and embedded in the matrix spaces. At the same time, they act as rutilization nuclei and partially rutilize the titanium dioxide coating.
  • the mass fraction of the rutile modification in the matrix is usually 0.5 to 40% by weight.
  • the rutile particles have an average diameter between 10 and 40 n.
  • a platelet-shaped pigment with a high gloss and high hiding power is formed, the proportion of the rutile modification being very strongly dependent on the annealing temperature.
  • the calcination is preferably carried out at temperatures between 700 and 1000 °, particularly preferably between 800 and 900 °. The use of foreign layers for rutilization, such as Sn0 2, is not required.
  • the hiding power and - in the case of colored pigment particles - the observation color-independent absorption color of the pigments according to the invention can be varied in a further range by the concentration of the incorporated pigment particles.
  • the mass fraction of the pigment particles stored, based on the matrix, is typically between 0.5 and 30% and in particular between 2 and 20%.
  • pigments according to the invention with one or more embedded organic and / or in particular inorganic colored pigments; iron oxides, chromium oxides, cobalt oxide and colored spinels such as cobalt aluminum oxide (CoAl 2 0 4 ) are particularly preferably used.
  • the pigments according to the invention are thus optical systems with an excellent combination of optical properties, the relative expression of which is also in the
  • the pigments according to the invention thus represent a considerable enrichment of the range of pigments which can be used industrially, and they are of considerable economic importance.
  • the pigments according to the invention are produced by wet chemical processes, such as those in US 30 87 828, DE 20 09 566, DE 22 14 545, DE 25 22 572, DE 25 22 573, DE 31 37 809, DE 31 51 354, DE 31 51 355, DE 32 11 602 or DE 32 35 017 are described and are also used in pigment production by mixed precipitation.
  • the procedure is preferably such that an aqueous suspension of a platelet-shaped substrate is prepared and heated to a temperature between 5 and 95 °.
  • a suspension of a metal salt is then added in the presence of metal oxide and / or organic dye particles, with a particle size in the submicron range, the particles being finely dispersed or separated either in the substrate suspension or in the metal salt solution be added to the substrate suspension as an aqueous dispersion simultaneously with the metal salt solution.
  • the pH of the substrate suspension is kept in a range by simultaneous addition of a base which is suitable for the hydrolysis of the respective metal salt and which causes a corresponding precipitation of the hydroxide.
  • the previously added metal oxide and / or organic dye particles are entrained and stored in the cavities of the striking water-containing oxide layer.
  • the coated substrate is separated, washed. dried and then calcined at temperatures between 400 and 1200 °, preferably at 600 to 1000 °.
  • the procedure can also be such that a suspension comprising the substrate to be coated, the submicron particles to be incorporated and the metal salt is prepared and the hydrolysis of the metal salt is then effected by heating and / or adding a base.
  • Composition of the pigment 51% mica, 1% Sn0 2 , 6% Aerosil 200®, approx. 42% Ti0 2 .
  • Example 3 Analogously to Example 1, instead of 6% Aerosil 200® 12% are dropped into the Ti0 2 layer.
  • the composition of the pigment is: 44% mica, 1% Sn0 2 , 12% Aercsii 200®, approx. 43% Ti0 2 .
  • Example 3
  • the pH is kept constant at 1.8. After the addition has ended, the mixture is stirred for 15 minutes to complete the reaction. The pigment is then filtered off, washed free of chloride and dried at 120 ° for 16 hours. After drying is complete, the mixture is annealed at 800 ° for 30 minutes.
  • the Ti0 2 layer consists of 20% rutile and 80% anatase.
  • Example 3 The procedure is analogous to Example 3. Only the final annealing temperature is increased to 850 °. A flaky pigment with a TiO 2 coating consisting of 40% rutile and 60% anatase is obtained.
  • Example 3 mica flakes are coated by precipitation with a TiO 2 layer. The dried product is annealed at 900 °. A platelet-shaped Ti0 2 coated pigment is obtained, the Ti0 2 layer of which has a composition of 30% rutile and 70% anatase.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Biophysics (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Cosmetics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Des pigments à éclat amélioré sont obtenus par revêtement de substrats en paillettes. Ces pigments se caractérisent par le fait que l'on précipite par hydrolyse sur le substrat en paillettes une suspension aqueuse constituée d'un sel métallique, ainsi que de particules d'un oxyde métallique et/ou d'un colorant, de manière à former une couche en hydroxyde métallique contenant des particules d'oxyde métallique et/ou de colorant.
EP92923792A 1991-12-06 1992-11-25 Pigments a eclat ameliore Withdrawn EP0621889A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4140295 1991-12-06
DE4140295A DE4140295A1 (de) 1991-12-06 1991-12-06 Pigmente mit verbessertem glanz
PCT/EP1992/002715 WO1993011194A1 (fr) 1991-12-06 1992-11-25 Pigments a eclat ameliore

Publications (1)

Publication Number Publication Date
EP0621889A1 true EP0621889A1 (fr) 1994-11-02

Family

ID=6446460

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92923792A Withdrawn EP0621889A1 (fr) 1991-12-06 1992-11-25 Pigments a eclat ameliore

Country Status (7)

Country Link
EP (1) EP0621889A1 (fr)
JP (1) JPH07501566A (fr)
CN (1) CN1073462A (fr)
DE (1) DE4140295A1 (fr)
FI (1) FI942627L (fr)
MX (1) MX9206971A (fr)
WO (1) WO1993011194A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3010247B2 (ja) 1994-06-10 2000-02-21 工業技術院長 板状アルミナ顔料及びその製造方法
US5584922A (en) * 1994-09-14 1996-12-17 Ciba-Geigy Corporation Stir-in organic pigments
US5648408A (en) * 1995-06-07 1997-07-15 Ciba-Geigy Corporation Organic stir-in pigments
DE19501307C2 (de) * 1995-01-18 1999-11-11 Eckart Standard Bronzepulver Farbige Aluminiumpigmente, Verfahren zu deren Herstellung sowie deren Verwendung
US6045914A (en) * 1996-06-03 2000-04-04 Engelhard Corporation Pearlescent glass pigment
DE19905427A1 (de) * 1999-02-10 2000-08-17 Merck Patent Gmbh Farbiges Interferenzpigment
DE60014273T2 (de) * 1999-07-29 2005-10-06 Merck Patent Gmbh Feine schuppenförmige Pigmente und deren Herstellungsverfahren
DE19941253A1 (de) * 1999-08-31 2001-03-08 Basf Ag Glanzpigmente mit absorbierender, niedrigbrechender Beschichtung
DE102009023157A1 (de) * 2009-05-29 2010-12-02 Merck Patent Gmbh Beschichtete Partikel
DE102014018275A1 (de) * 2014-12-12 2016-06-16 Merck Patent Gmbh Nichtmetallische Pigmente mit metallischen Eigenschaften
CA2988898C (fr) 2016-12-21 2021-05-11 Viavi Solutions Inc. Particules comportant un colorant depose par vapeur
CA2988904C (fr) 2016-12-21 2020-05-05 Viavi Solutions Inc. Pigment metallique colore hybride

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1326901A (fr) * 1961-06-28 1963-05-10 Du Pont Nouvelles compositions de pigments
DE2557796C2 (de) * 1975-12-22 1985-05-02 Merck Patent Gmbh, 6100 Darmstadt Rußhaltige Pigmente
US4623396A (en) * 1983-09-14 1986-11-18 Shiseido Company Ltd. Titanium-mica composite material
DE3731174A1 (de) * 1987-09-17 1989-03-30 Merck Patent Gmbh Glasur- und emailstabile perlglanzpigmente
JPH0813943B2 (ja) * 1988-04-26 1996-02-14 メルク・ジヤパン株式会社 薄片状体質顔料及びその製造方法
DE4104846A1 (de) * 1991-02-16 1992-08-20 Merck Patent Gmbh Russhaltige pigmente

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9311194A1 *

Also Published As

Publication number Publication date
FI942627A7 (fi) 1994-07-27
CN1073462A (zh) 1993-06-23
FI942627L (fi) 1994-07-27
DE4140295A1 (de) 1993-06-09
FI942627A0 (fi) 1994-06-03
WO1993011194A1 (fr) 1993-06-10
JPH07501566A (ja) 1995-02-16
MX9206971A (es) 1994-06-30

Similar Documents

Publication Publication Date Title
DE1467468C3 (de) Glimmerschuppenpigment und dessen Verwendung zur Herstellung von Überzugsmitteln und selbsttragenden Kunststoffilmen
EP0837911B1 (fr) Pigment de dioxyde de titane sous forme de plaquettes
EP3283573B1 (fr) Pigments nacrés comprenant des substrats monolithiques, procédé de fabrication et utilisation des pigments nacrés
EP0839167B1 (fr) Pigments a lustre nacre renfermant du titane
DE69016099T2 (de) Chromatische Pigmente auf der Basis von Titandioxid.
EP0931112B1 (fr) Paillettes de dioxyde de titane revetues d'oxyde metallique
DE19901612A1 (de) Mehrschichtiges Perlglanzpigment
DE2214545B2 (fr)
EP0246523A2 (fr) Pigments nacrés
DE10128489A1 (de) Mehrschichtige Glanzpigmente
EP0659843B1 (fr) Pigment non brillant
EP0750021B1 (fr) Pigments de couleur d'or à base de substrats revêtus d'oxydes métalliques
DE4137860A1 (de) Interferenzpigmente
EP0293746B1 (fr) Pigment à deux phases en forme de plaquettes
DE4104310A1 (de) Plaettchenfoermiges pigment
EP0621889A1 (fr) Pigments a eclat ameliore
WO1997043347A1 (fr) Pigment de reduction de dioxyde de titane sous forme de plaquettes
EP0544867B1 (fr) Pigments lamellaires revetus, leur production et leur utilisation
WO1998053010A1 (fr) Paillettes de dioxyde de titane revetues d'oxyde metallique
EP1697468B1 (fr) Pigments métalliques colorés, procédé de production desdits pigments, utilisation desdits pigments en cosmétique et produits cosmétiques ainsi obtenus
EP0499864B1 (fr) Pigments contenant du noir de carbone
EP0718378B1 (fr) Pigments colorés non brillants
DE3718446A1 (de) Plaettchenfoermiges zweiphasenpigment
DE19502231A1 (de) Effektpigment mit dunkler Körperfarbe
DE19522267A1 (de) Zinnhaltige Graupigmente

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19940826

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19960603