EP1152999A1 - Matiere a couler ceramique aqueuse, procede de preparation et d'utilisation de ladite matiere - Google Patents
Matiere a couler ceramique aqueuse, procede de preparation et d'utilisation de ladite matiereInfo
- Publication number
- EP1152999A1 EP1152999A1 EP00903495A EP00903495A EP1152999A1 EP 1152999 A1 EP1152999 A1 EP 1152999A1 EP 00903495 A EP00903495 A EP 00903495A EP 00903495 A EP00903495 A EP 00903495A EP 1152999 A1 EP1152999 A1 EP 1152999A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting compound
- binder
- ceramic
- polyurethane
- casting material
- 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- Withdrawn
Links
- 238000005266 casting Methods 0.000 title claims abstract description 47
- 239000000919 ceramic Substances 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000463 material Substances 0.000 title abstract 4
- 239000011230 binding agent Substances 0.000 claims abstract description 36
- 229920002635 polyurethane Polymers 0.000 claims abstract description 24
- 239000004814 polyurethane Substances 0.000 claims abstract description 24
- 150000001875 compounds Chemical class 0.000 claims description 43
- 239000000843 powder Substances 0.000 claims description 12
- 239000002612 dispersion medium Substances 0.000 claims description 8
- 239000006185 dispersion Substances 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 4
- 229910002113 barium titanate Inorganic materials 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- 239000004005 microsphere Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000012958 reprocessing Methods 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 5
- 239000011888 foil Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000005467 ceramic manufacturing process Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63424—Polyacrylates; Polymethacrylates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
- C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
- C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
- C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
- C04B35/4682—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates based on BaTiO3 perovskite phase
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63456—Polyurethanes; Polyisocyanates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
Definitions
- Aqueous ceramic casting compound process for producing the casting compound and use of the casting compound
- the invention relates to a ceramic casting compound (slip) which has a ceramic powder, an aqueous dispersion medium and a binder.
- a ceramic casting compound is known from WO 94/07808.
- a process for the production of the casting compound and a use of the casting compound are specified.
- a ceramic casting compound is used, for example, to produce a ceramic green sheet.
- a casting compound with an aqueous dispersion medium is preferred.
- the ceramic casting compound resulting from WO 94/07808, which is suitable for producing a ceramic green sheet, has an emulsion copolymer of an ester of an acrylic and / or methacrylic acid as a binder.
- Ceramic green foils are used to produce a multilayer ceramic body, for example a multilayer capacitor.
- Several green foils, possibly with a metallization, are stacked on top of one another, laminated, debindered and sintered together.
- Green foils which are as thin as possible are used to reduce the size of the multilayer body.
- the capacitance of the capacitor can also be increased using thin green foils.
- the object of the invention is to provide a ceramic casting compound with an aqueous dispersion medium, with the aid of which a thin ceramic green sheet can be produced, which also has sufficient elasticity and the necessary tensile strength for further processing.
- a ceramic casting compound which has a ceramic powder, an aqueous dispersion medium and a binder, characterized in that the binder comprises polyurethane.
- a polyurethane is suitable as a binder, which is used, for example, in the production of a polyurethane foam, an adhesive or a lacquer.
- a chain of a polyurethane is extremely flexible due to its molecular structure.
- the green sheet produced with the aid of the polyurethane can also have a tensile strength which is tailored to the further processing of the green sheet.
- a thin green sheet can in particular also be self-supporting, i.e. can be processed without a carrier like a plastic film. It is not necessary to specifically influence the mechanical properties of a green sheet, for example by incorporating a soft substituent from a polymeric binder to lower its glass transition temperature.
- a plasticizer as an additive to the casting compound can also be dispensed with.
- the binder has a copolymer.
- the binder is an emulsion copolymer made from a polyacrylate and a polyurethane.
- Another component of the copolymer can also be cellulose, polyacrylamide, polyvinyl alcohol and / or styrene.
- a monomer with a corresponding In the functional group a certain property of the binder can be changed in a targeted manner (eg the solubility of the binder in water).
- a polyurethane binder can be mixed with another binder.
- This further binder can in particular have polyacrylate. It is particularly advantageous if the binders have a similar pH stability.
- the casting compound has a binder with a molecular weight in a range between 10,000 and 120,000 g / mol.
- the binder is preferably in the form of a microsphere with an average particle size in a range between 20 and 300 nm, a particle size below 100 nm being possible in particular with a polyurethane.
- This particle size leads to a good solubility of the polyurethane in water. This ensures a high stability of the casting compound. Solid components remain evenly distributed in the casting compound, i.e. sedimentation (gravitational drainage) does not take place.
- a small green particle size of the binder enables a high green density to be achieved in a ceramic green body.
- the casting compound has a pH value in a range between 5 and 10.
- a polyurethane is stable, i.e. for example, it does not tend to agglomerate.
- An additional stabilizer for the polyurethane is not necessary.
- the ceramic powder of the casting compound has at least one substance selected from the group boron, carbon, oxygen, sulfur, nitrogen, lithium, sodium, potassium, beryllium, magnesium, calcium, strontium, barium, aluminum, gallium, Indium, titanium, zircon, bismuth and / or manganese is selected. Is.
- the ceramic powder has barium titanate. Barium titanate is mainly used as a dielectric in multilayer capacitors.
- a method for producing a ceramic casting compound which has a ceramic powder, an aqueous dispersion medium and a binder with polyurethane.
- a ceramic powder for this purpose, an aqueous dispersion of the ceramic powder and an aqueous dispersion of the binder are mixed.
- a ceramic casting compound described here is used to produce a ceramic green body, for example a green film. With the aid of the casting compound, it is possible in particular to produce a green film which has a thickness in a range between 1 and 30 ⁇ m.
- a thin green film which has barium titanate as the ceramic powder, for example, can be used to produce a multilayer capacitor of high capacitance and low overall height.
- a casting compound with an aqueous dispersion medium can be used.
- a polyurethane has a relatively high solubility in water. This leads to a stable casting compound with a high green density.
- a polyurethane can easily be combined with another binder (multi-component binder).
- Monomers of a polyurethane can easily be subjected to a copolymerization. This makes it possible to influence a property of a binder specifically at the molecular level.
- the green sheet has mechanical properties that make further processing of the green sheet possible (combination of flexibility and tensile strength).
- the production of the casting compound is explained in more detail using several exemplary embodiments. It also shows how the mechanical properties of a ceramic green sheet can be influenced by the composition of the binder.
- a ceramic powder (Y5V®, company Kyorix, Japan) with an average grain size of 0.4 ⁇ m is mixed with 12 g of a polyammonium acrylate (zirconium oxide balls (diameter 1 mm) as grinding medium).
- Byk 154® from Byk Chemie
- 390 g of a 0% strength are added to this dispersion with slow stirring aqueous dispersion of an aliphatic polyester-polyurethane copolymer (pH: 7-8.5) was added.
- the mixture is homogenized by stirring for three hours, an additional 10 g of a wetting agent (SE-F®, Air Products) being introduced.
- SE-F® wetting agent
- the homogenized casting compound is degassed under vacuum.
- the viscosity of the casting compound is approximately 24 mPas.
- a ceramic green film with a thickness of 17 ⁇ m is obtained by pulling out with a film drawing frame with a corresponding gap thickness on a carrier film made of polypropylene.
- the elastic modulus of this green sheet is 523.80 MPa and the maximum tensile strength is 7.36 MPa.
- a green film with a thickness of 4 .mu.m can be produced from the casting compound described and can easily be detached from the carrier film.
- Another exemplary embodiment differs from the first in that, instead of a polyester-polyurethane copolymer, a 75:25 mixture of a polyurethane and a polyacrylate is used as a binder (pH 8.8-9.2).
- the minimum film forming temperature of the casting compound is 18 ° C and the viscosity 0.5 to 1 Pas.
- the modulus of elasticity is 930 Mpa.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Matière à couler céramique aqueuse, contenant un liant en polyuréthanne, qui est adaptée à la fabrication d'une feuille de céramique à l'état vert très mince, d'une épaisseur allant jusqu'à 1 mu m. Il est possible d'influencer de manière ciblée à l'aide du liant une propriété mécanique de cette feuille à l'état vert, telle que le module d'élasticité ou la résistance à la traction, ce qui permet un traitement ultérieur fiable de la feuille à l'état vert. Ladite feuille à l'état vert permet par exemple la fabrication d'un condensateur multicouche à capacité élevée et à faible encombrement en hauteur.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19902157 | 1999-01-20 | ||
DE19902157 | 1999-01-20 | ||
PCT/DE2000/000020 WO2000043328A1 (fr) | 1999-01-20 | 2000-01-03 | Matiere a couler ceramique aqueuse, procede de preparation et d'utilisation de ladite matiere |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1152999A1 true EP1152999A1 (fr) | 2001-11-14 |
Family
ID=7894859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00903495A Withdrawn EP1152999A1 (fr) | 1999-01-20 | 2000-01-03 | Matiere a couler ceramique aqueuse, procede de preparation et d'utilisation de ladite matiere |
Country Status (4)
Country | Link |
---|---|
US (1) | US6521686B1 (fr) |
EP (1) | EP1152999A1 (fr) |
JP (1) | JP2002535231A (fr) |
WO (1) | WO2000043328A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1164527C (zh) * | 2000-07-28 | 2004-09-01 | 株式会社村田制作所 | 陶瓷糊浆组合物、陶瓷成形体和陶瓷电子元件 |
JP2003055053A (ja) * | 2001-08-07 | 2003-02-26 | Tdk Corp | セラミック塗料、セラミックグリーンシートの製造方法およびセラミック電子部品の製造方法 |
DE60332087D1 (de) * | 2002-10-28 | 2010-05-27 | Murata Manufacturing Co | Ramischen kondensators |
US8962749B2 (en) * | 2008-02-19 | 2015-02-24 | Ngk Insulators, Ltd. | Ceramic green sheet and method for producing the same |
US8628841B2 (en) * | 2008-08-27 | 2014-01-14 | Ngk Insulators, Ltd. | Ceramic green body and method for producing the same |
CN106674847B (zh) * | 2016-11-21 | 2018-09-14 | 万峰 | 一种介电材料组合物 |
DE102017002487A1 (de) * | 2017-03-15 | 2018-09-20 | Pritidenta Gmbh | Pulvermetallurgisches verfahren zur herstellung eines rohlings |
CN109384949B (zh) * | 2018-10-22 | 2021-02-19 | 温州强润新材料科技有限公司 | 一种锂电池用复合聚合物隔膜的制备工艺 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4233518C1 (de) * | 1992-10-06 | 1994-08-25 | Hoechst Ag | Wäßrige Gießmasse zur Herstellung von grünen Keramikfolien und daraus hergestellte Keramikformteile |
DE19615400C2 (de) | 1996-04-18 | 2001-02-15 | Univ Bayreuth Lehrstuhl Fuer K | Schlicker und seine Verwendung zur Herstellung keramischer Grünkörper und keramischer Gegenstände |
-
2000
- 2000-01-03 WO PCT/DE2000/000020 patent/WO2000043328A1/fr not_active Application Discontinuation
- 2000-01-03 EP EP00903495A patent/EP1152999A1/fr not_active Withdrawn
- 2000-01-03 JP JP2000594748A patent/JP2002535231A/ja not_active Withdrawn
- 2000-01-03 US US09/857,787 patent/US6521686B1/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
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See references of WO0043328A1 * |
Also Published As
Publication number | Publication date |
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JP2002535231A (ja) | 2002-10-22 |
US6521686B1 (en) | 2003-02-18 |
WO2000043328A1 (fr) | 2000-07-27 |
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