WO2006106624A1 - 黒色を呈した複合酸化物粒子 - Google Patents
黒色を呈した複合酸化物粒子 Download PDFInfo
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- WO2006106624A1 WO2006106624A1 PCT/JP2006/306138 JP2006306138W WO2006106624A1 WO 2006106624 A1 WO2006106624 A1 WO 2006106624A1 JP 2006306138 W JP2006306138 W JP 2006306138W WO 2006106624 A1 WO2006106624 A1 WO 2006106624A1
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- composite oxide
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- oxide particles
- copper
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- C01G51/006—Compounds containing, besides cobalt, two or more other elements, with the exception of oxygen or hydrogen
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- C01G1/02—Oxides
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- 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
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- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/0009—Pigments for ceramics
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- 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
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- 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
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- 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
- C09D7/68—Particle size between 100-1000 nm
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- 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
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- 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
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/30—Three-dimensional structures
- C01P2002/32—Three-dimensional structures spinel-type (AB2O4)
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- C01P2002/52—Solid solutions containing elements as dopants
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
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- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
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- C01P2006/12—Surface area
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/19—Oil-absorption capacity, e.g. DBP values
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- C01P2006/00—Physical properties of inorganic compounds
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- C01P2006/62—L* (lightness axis)
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- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
- C01P2006/63—Optical properties, e.g. expressed in CIELAB-values a* (red-green axis)
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- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
- C01P2006/64—Optical properties, e.g. expressed in CIELAB-values b* (yellow-blue axis)
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
Definitions
- the present invention relates to a composite oxide particle having a black color. Specifically, it contains at least one or more of copper, nickel and molybdenum, and contains a specific amount of cobalt.
- the present invention relates to composite oxide particles having a black color characterized by
- a conductive black pigment used for forming a black matrix coloring composition, a black electrode on a front plate of a plasma display, a plasma addressed liquid crystal or the like, or for forming a light shielding layer, etc. is excellent in properties such as electric conductivity and is inexpensive. There is a need to be. From this point of view, carbon black, magnetite and other acidic iron-based pigments, and other complex oxide pigments are used depending on the application.
- Typical examples of such black pigments mainly composed of metal oxides include metal oxide particles having a single composition such as cobalt oxide, manganese oxide, copper oxide, Cu-Cr, Cu-Mn, Cu — Composite oxide particles such as Cr-Mn-based, Cu-Fe-Mn-based, Co-Mn-Fe-based, and Co-FeCr-based (for example, see JP-A-9237570 and JP-A-10-231441). See).
- the metal oxide particles having a single composition described above have a large particle size! /, And although they have high blackness, they become brown when sub-micron level particles are formed. Alternatively, it is difficult to produce such levels of particles.
- the composite oxide particles also have merits and demerits in the performance required for black pigments.
- chromium such as Cu-Cr and Cu-Cr-Mn
- the production of submicron level particles is difficult.
- a conductive black pigment mainly composed of a metal oxide, it has better blackness and electrical conductivity, oxidation resistance, dispersibility during coating, and coating of the coating. In the case of a material with a balanced surface smoothness of the coating film, a satisfactory material has not yet been found!
- an object of the present invention is to provide a black color suitable mainly as a black matrix coloring composition, a black electrode on a front plate such as a plasma display or a plasma address liquid crystal, and a conductive black pigment for forming a light shielding layer. It is to provide composite oxide particles.
- Another object of the present invention is to provide black composite oxide particles having a balanced black color such as oxidation resistance, dispersibility during coating, and surface smoothness of the coating when the coating is applied. It is to provide.
- the present inventors As a result of intensive studies on materials mainly composed of various metal oxides, the present inventors, as a result, contain at least one or more of copper, nickel and molybdenum, and have a specific amount of cobalt. As a result, the present inventors have found that the above-mentioned problems can be solved by using composite oxide particles containing the above.
- the composite oxide particles of the present invention contain at least one or more of copper, nickel and molybdenum, and the cobalt content is 40 to 40% in terms of metal elements with respect to the entire particles. It is 65 mass%.
- the composite oxide particle of the present invention contains at least one or more of copper, nickel, and molybdenum, and is 40 to 65% by mass in terms of a metal element with respect to the entire cobalt content force particle. It is characterized by being.
- the present inventors prepared composite oxide particles of various systems (compositions), and various shapes such as plate-like, granular, and indefinite shapes were prepared. Shaped particles were produced. However, it was rare that black pigments with good conductivity were produced as in the present invention.
- the composite oxide particles of the present invention have a cobalt content of 40 to 65 mass% in terms of metal elements with respect to the entire particles.
- the content is less than 40% by mass, the blackness is insufficient.
- the content exceeds 65% by mass, the blackness is sufficient, but the conductivity is insufficient. Considering the balance between conductivity and blackness, it should be 50-65% by mass.
- the composite oxide particles of the present invention preferably have a total content of copper, nickel, and molybdenum of 10 to 30% by mass in terms of metal elements with respect to the total particles. This content is above If it is out of the range, the effect of improving the blackness and conductivity may be lacking, or the balance between the two may be lacking.
- the crystal structure of the composite oxide particles of the present invention is of a spinel type or an inverse spinel type.
- the composite oxide particles of the present invention preferably have a plate shape. It is more preferable that the flat portion of the plate-like particle has a recess, and the number of the recess is 3 or more and less than 20 per particle.
- the composite oxide particles of the present invention can be used even if they have a particle shape strength ⁇ , but for example, spherical particles have excellent dispersion stability when used in the form of paint, but after application, However, it is preferable to use a plate-like product that can be expected to have a surface contact effect.
- a concave portion exists on the particle surface, because when dispersed in a vehicle containing a resin, the vehicle enters the concave portion and promotes improvement of dispersibility.
- the concave portion present in the flat portion of the plate-like particle can be confirmed from a scanning electron microscope (hereinafter referred to as SEM) photograph.
- SEM scanning electron microscope
- the number of recesses present in the planar portion of the plate-like particle is 3 or more and 20 or less per particle.
- the number of the recesses is less than 3, it is not preferable because the electrical conductivity effect is not sufficiently exhibited.
- the number of recesses is more than 20, the strength of the particles becomes weak, and as a result, the particles are broken when the particles are dispersed to produce a paint, which is not preferable.
- the number of the recesses is more preferably 5 or more and 15 or less, which is more preferable since the balance between the electrical conductivity effect and the particle strength can be achieved.
- the composite oxide particles of the present invention preferably have an average particle size of 0.1 to Lm. Such fine composite black acid oxide particles are excellent in the surface smoothness of the coating film when coated, and the glossiness of the coating film is increased.
- the composite oxide particles of the present invention preferably have a BET specific surface area of 10 to 50 m 2 / g.
- the specific surface area by BET is less than 10 m 2 / g, the particles themselves may be too large, resulting in poor colorability when painted.
- the specific surface area exceeds 50 m 2 Zg, In addition to being inferior to the surface smoothness of the coating film when coated and coated, the particles may be too fine and the blackness may decrease.
- the composite oxide particles of the present invention preferably have an oil absorption of 20 to 40 ml ZlOOg.
- the composite oxide particles of the present invention having a low oil absorption amount have less agglomerated particles, and as a result, dispersibility when coated is good.
- the composite oxide particles of the present invention preferably have a force density of 0.1 to 0.5 g / cm 3 .
- the strength density is less than 0.1 lg / cm 3, it is not preferable because it becomes difficult to handle when forming a paint, and is too bulky to require a large container for storage.
- it exceeds 0.5 gZcm 3 it tends to agglomerate and may impair dispersibility.
- the composite oxide particles of the present invention preferably have a color strength value of 18 to 23 on the coated paper.
- the L value by the coating film is higher than 23, the blackness becomes insufficient, which is not preferable. Conversely, it is practically difficult for the L value of the coating to be less than 18.
- the composite oxide particles of the present invention preferably have an electric resistance value of 10 ° to: 0 2 ⁇ 'cm. It is practically difficult to make the electrical resistance less than 10 ° ⁇ 'cm. On the contrary, if the electric resistance exceeds 10 2 ⁇ ′cm, the electric conductivity is insufficient, which is not preferable.
- the composite oxide particles of the present invention comprise at least cobalt and a metal salt mixed aqueous solution prepared using a water-soluble salt containing one or more metal elements of copper, nickel and molybdenum. Then, neutralize and mix with hydroxide and alkali, and maintain the resulting metal hydroxide slurry at pH 10 to 13 and oxidize at a temperature above 40 ° C and below 60 ° C to obtain a precursor.
- the precursor is aged at 80 to 150 ° C, and after solid-liquid separation, the solid content is heat-treated at a temperature of 400 to 700 ° C for more than 1 hour and not more than 3 hours.
- a water-soluble salt of a metal element containing at least conolate and selected from copper, nickel and molybdenum is used.
- the amount of the conoleate salt is important. The reason for this is to improve the blackness of the obtained composite oxide particles and to ensure conductivity.
- the amount of copper, nickel and molybdenum metal salt used is also important. Specifically, the total content of copper, nickel and molybdenum in the composite oxide particles Thus, it is preferable to prepare the metal salt mixed aqueous solution so as to be 10 to 30% by mass. This is because the resulting composite oxide particles have good blackness and ensure electrical conductivity.
- the temperature of the aqueous solution is preferably 30 to 60 ° C. If the temperature is less than 30 ° C, undissolved metal salts are likely to remain in the aqueous solution. When mixed with alkali hydroxide to form a composite hydroxide, a non-uniform composition of hydroxide is formed. There is a fear. In addition, if the temperature exceeds 60 ° C, the size of the nuclei becomes inhomogeneous, and the size of the composite oxide particles that are finally obtained varies.
- the various metal salts used in the preparation of the aqueous solution are sulfates, nitrates, carbonates, chlorides, and the like, which are not particularly limited as long as they are water-soluble. Use it.
- the metal ion concentration in the aqueous solution may be adjusted to a total ion concentration of about 0.5 to 2 OmolZL in consideration of productivity.
- the alkali hydroxide used for the neutralization is preferably a caustic alkali such as sodium hydroxide or potassium hydroxide.
- the neutralization mixing may be any mixing mode, but it is preferable to add a hydroxide or alkali to the metal salt mixed aqueous solution. If the addition is performed for 60 to 120 minutes, mixed hydroxide core particles having a uniform composition can be obtained. If the addition time is shorter than 60 minutes, a hydroxide having a non-uniform composition is formed or irregularly shaped particles are likely to be generated. When it exceeds 120 minutes, a mixed hydroxide having a uniform composition is formed, but the growth of nuclei also proceeds, and irregularly shaped particles tend to be generated.
- the obtained mixed hydroxide slurry is adjusted in a pH range of 10 to 13, and an appropriate oxidizing agent (hydrogen peroxide, etc.) is added and oxygen-containing gas, preferably air is blown into the slurry.
- the composite oxide particles having a black color are produced.
- the reaction temperature is preferably above 40 ° C and below 60 ° C. If the temperature is below 40 ° C, the particles may become fine and the blackness may decrease, and if it exceeds 60 ° C, irregularly shaped particles are likely to occur frequently.
- the oxidation reaction is continued until the acid reduction potential in the slurry reaches equilibrium.
- the temperature of the slurry thus obtained is raised to 80 to 150 ° C.
- the composite oxide particles in the slurry are aged by applying a force of 100 ° C to 150 ° C using an autoclave or the like. This aging is important in order to advance the reaction to form granular particles. If the treatment temperature at this time is less than 80 ° C (if the temperature is less than 100 ° C when using an autoclave), the reaction does not proceed so easily that granular particles cannot be formed. It is easy to generate irregular shaped particles. When the temperature exceeds 100 ° C (when the temperature exceeds 150 ° C when an autoclave is used), the particle size distribution of the particles obtained due to the high reaction rate becomes wide, which is not preferable.
- the slurry containing the complex oxide particles (that is, the precursor) that has been aged is subjected to conventional filtration, washing, and dehydration, and the solid content is dried at 50 to 120 ° C and then pulverized. .
- the resulting composite oxide particles (ie, precursors) are heat-treated at 400 to 700 ° C for more than 1 hour and less than 3 hours to stabilize the morphology. If the heat treatment time is 1 hour or less, the form of the oxide is not stable, and the hue may deteriorate. Also, if it exceeds 3 hours, the coloring power may be reduced due to the effect of inter-particle sintering.
- the composite oxide particles obtained by heat treatment may be partially agglomerated, so it is sufficient to add conventional crushing treatment.
- the temperature during the heat treatment is less than 400 ° C, the form of the oxide may not be stable, and the stability of various properties may be lacking. If the temperature exceeds 700 ° C, the blackness and hue may be deteriorated due to excessive heat load.
- the atmosphere during the heat treatment may be either in the air or in an inert gas atmosphere.
- a molded body such as an electrode formed of a conductive black paint formed using the composite oxide particles of the present invention has blackness, electrical conductivity, oxidation resistance, uniformity and glossiness of a fired film. Is excellent.
- This black conductive paint is suitably used for display display elements such as plasma displays and plasma addressed liquid crystals.
- the obtained precursor particle slurry was heated to 80 ° C. and aged for 2 hours.
- the obtained slurry was filtered, washed and dried by a usual method to obtain a solid content.
- This solid content was dried and then heat-treated at 580 ° C. for 2 hours in an air atmosphere.
- composite oxide particles containing copper were obtained.
- the obtained particles were evaluated by the following methods. The results are shown in Table 2.
- a SEM Sccanning Electron Microscope photographed 100,000 times and measured the ferret diameter of 200 particles.
- a SEM Sccanning Electron Microscope photographed 100,000 times, randomly selectable particles to observe, and measured the particle shape and the number of recesses for 30 particles.
- the sample was put in a container with an internal volume of 100 cm 3 without using a sieve, and the weight was measured to determine the weight per unit volume.
- the composite oxide particles of the examples have blackness, electrical conductivity, hue, oxidation resistance, dispersibility during coating, and surface smoothness when coating the coating. Excellent Yes.
- the composite oxide particles of the examples were confirmed to have a spinel type crystal structure as a result of measurement by force XDR.
- the particles of Comparative Example 2 contain copper, nickel, and molybdenum. However, the total content is too high, so the content of the condensate is reduced, and the conductivity is sufficient, but the blackness is high. It was inferior to.
- the particles of Comparative Example 3 contain copper, nickel, and molybdenum. However, the total content is low, so the cobalt content is too high. As a result, the blackness is sufficient, but the conductivity is low. Was low.
- the black composite oxide particles according to the present invention are more excellent in blackness and electrical conductivity, oxidation resistance, dispersibility during coating, and coating the coating. Since the surface smoothness of the coating film is balanced, it is suitable as a black matrix coloring composition, a black electrode for front plates of plasma displays, plasma address liquid crystals, etc., and a black pigment for forming a light shielding layer. It is. In addition, a molded body such as an electrode formed of a conductive black paint using such composite oxide particles has excellent blackness, electrical conductivity, oxidation resistance, and uniformity and gloss of the fired film. It is.
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Abstract
Description
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US11/909,874 US20090269585A1 (en) | 2005-03-31 | 2006-03-27 | Black complex oxide particles |
EP06730086A EP1864948A1 (en) | 2005-03-31 | 2006-03-27 | Composite oxide particle having black color |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2005-103724 | 2005-03-31 | ||
JP2005103724 | 2005-03-31 |
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WO2006106624A1 true WO2006106624A1 (ja) | 2006-10-12 |
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PCT/JP2006/306138 WO2006106624A1 (ja) | 2005-03-31 | 2006-03-27 | 黒色を呈した複合酸化物粒子 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090269585A1 (ja) |
EP (1) | EP1864948A1 (ja) |
KR (1) | KR20070118669A (ja) |
CN (1) | CN101151215A (ja) |
WO (1) | WO2006106624A1 (ja) |
Families Citing this family (1)
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JP5080840B2 (ja) * | 2007-03-30 | 2012-11-21 | 三井金属鉱業株式会社 | 黒色複合酸化物粒子、黒色スラリー、黒色ペースト、およびブラックマトリックス |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS496040B1 (ja) * | 1968-07-02 | 1974-02-12 | ||
JPS5583165A (en) * | 1978-12-19 | 1980-06-23 | Japan Storage Battery Co Ltd | Manufacturing method of positive electrode plate for alkaline cell |
JPS61249541A (ja) * | 1985-04-26 | 1986-11-06 | Matsushita Electric Ind Co Ltd | 酸化触媒 |
JPH08217543A (ja) * | 1995-02-09 | 1996-08-27 | Tokin Corp | 磁気ヘッド用非磁性セラミックスの製造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2396157B (en) * | 2001-08-09 | 2005-07-20 | Hitachi Maxell | Non-magnetic particles having a plate shape and method for production thereof,abrasive material,polishing article and abrasive fluid comprising such particles |
KR100818469B1 (ko) * | 2003-10-15 | 2008-04-02 | 미츠이 마이닝 & 스멜팅 콤파니 리미티드 | 복합 흑색 산화물 입자, 그 제조방법, 흑색 도료 및 블랙매트릭스 |
KR101089954B1 (ko) * | 2004-09-17 | 2011-12-05 | 미츠이 마이닝 & 스멜팅 콤파니 리미티드 | 코발트 함유 입상 흑색안료 |
-
2006
- 2006-03-27 EP EP06730086A patent/EP1864948A1/en not_active Withdrawn
- 2006-03-27 KR KR1020077024925A patent/KR20070118669A/ko not_active Application Discontinuation
- 2006-03-27 CN CNA2006800101951A patent/CN101151215A/zh active Pending
- 2006-03-27 WO PCT/JP2006/306138 patent/WO2006106624A1/ja active Application Filing
- 2006-03-27 US US11/909,874 patent/US20090269585A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS496040B1 (ja) * | 1968-07-02 | 1974-02-12 | ||
JPS5583165A (en) * | 1978-12-19 | 1980-06-23 | Japan Storage Battery Co Ltd | Manufacturing method of positive electrode plate for alkaline cell |
JPS61249541A (ja) * | 1985-04-26 | 1986-11-06 | Matsushita Electric Ind Co Ltd | 酸化触媒 |
JPH08217543A (ja) * | 1995-02-09 | 1996-08-27 | Tokin Corp | 磁気ヘッド用非磁性セラミックスの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1864948A1 (en) | 2007-12-12 |
CN101151215A (zh) | 2008-03-26 |
US20090269585A1 (en) | 2009-10-29 |
KR20070118669A (ko) | 2007-12-17 |
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