EP0579229A3 - - Google Patents
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- Publication number
- EP0579229A3 EP0579229A3 EP19930111379 EP93111379A EP0579229A3 EP 0579229 A3 EP0579229 A3 EP 0579229A3 EP 19930111379 EP19930111379 EP 19930111379 EP 93111379 A EP93111379 A EP 93111379A EP 0579229 A3 EP0579229 A3 EP 0579229A3
- Authority
- EP
- European Patent Office
- 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.)
- Granted
Links
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
- H01F1/447—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids characterised by magnetoviscosity, e.g. magnetorheological, magnetothixotropic, magnetodilatant liquids
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
- C10M171/001—Electrorheological fluids; smart fluids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
- H01F1/445—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids the magnetic component being a compound, e.g. Fe3O4
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/04—Elements
- C10M2201/05—Metals; Alloys
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/044—Polyamides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/045—Polyureas; Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/14—Electric or magnetic purposes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/14—Electric or magnetic purposes
- C10N2040/16—Dielectric; Insulating oil or insulators
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/14—Electric or magnetic purposes
- C10N2040/17—Electric or magnetic purposes for electric contacts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/14—Electric or magnetic purposes
- C10N2040/175—Pantographs, i.e. printing devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/14—Electric or magnetic purposes
- C10N2040/18—Electric or magnetic purposes in connection with recordings on magnetic tape or disc
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/14—Electric or magnetic purposes
- C10N2040/185—Magnetic fluids
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Soft Magnetic Materials (AREA)
- Lubricants (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP210655/92 | 1992-07-16 | ||
JP21065592 | 1992-07-16 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0579229A2 EP0579229A2 (fr) | 1994-01-19 |
EP0579229A3 true EP0579229A3 (fr) | 1994-04-13 |
EP0579229B1 EP0579229B1 (fr) | 1998-09-30 |
Family
ID=16592910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93111379A Expired - Lifetime EP0579229B1 (fr) | 1992-07-16 | 1993-07-15 | Huile ayant des effets magnétiques et électrorheologues simultanément |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0579229B1 (fr) |
DE (1) | DE69321301T2 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69407476T2 (de) * | 1993-05-21 | 1998-04-16 | Nippon Oil Co Ltd | Elektrorheologische Flüssigkeit |
JPH0790290A (ja) * | 1993-09-21 | 1995-04-04 | Nippon Oil Co Ltd | 磁性と電気粘性効果とを同時に有する流体用分散粒子及びそれを用いた流体。 |
JPH07238290A (ja) * | 1994-03-01 | 1995-09-12 | Nippon Oil Co Ltd | 電気粘性流体 |
CN109215925A (zh) * | 2018-10-22 | 2019-01-15 | 南京信息职业技术学院 | 一种磁性铁流体及其制备方法 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2452529A (en) * | 1941-10-24 | 1948-10-26 | Hartford Nat Bank & Trust Co | Magnet core |
US2661596A (en) * | 1950-01-28 | 1953-12-08 | Wefco Inc | Field controlled hydraulic device |
US3228881A (en) * | 1963-01-04 | 1966-01-11 | Chevron Res | Dispersions of discrete particles of ferromagnetic metals |
GB1076754A (en) * | 1964-06-09 | 1967-07-19 | Pure Oil Co | Electric field responsive fluid and method of preparation |
US3385793A (en) * | 1965-03-19 | 1968-05-28 | Union Oil Co | Electroviscous fluid and method of using same |
SU925520A1 (ru) * | 1980-01-30 | 1982-05-07 | За витель В. С. Чуркин i | Способ изготовлени литейной формы |
EP0478034A1 (fr) * | 1990-08-30 | 1992-04-01 | Asahi Kasei Kogyo Kabushiki Kaisha | Fluide électrorheologique homogène |
JPH04261496A (ja) * | 1991-02-14 | 1992-09-17 | Toyota Motor Corp | 電気粘性流体の分散粒子沈澱防止方法 |
EP0566931A1 (fr) * | 1992-04-24 | 1993-10-27 | BASF Aktiengesellschaft | Suspensions magnétodilatantes |
-
1993
- 1993-07-15 EP EP93111379A patent/EP0579229B1/fr not_active Expired - Lifetime
- 1993-07-15 DE DE69321301T patent/DE69321301T2/de not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2452529A (en) * | 1941-10-24 | 1948-10-26 | Hartford Nat Bank & Trust Co | Magnet core |
US2661596A (en) * | 1950-01-28 | 1953-12-08 | Wefco Inc | Field controlled hydraulic device |
US3228881A (en) * | 1963-01-04 | 1966-01-11 | Chevron Res | Dispersions of discrete particles of ferromagnetic metals |
GB1076754A (en) * | 1964-06-09 | 1967-07-19 | Pure Oil Co | Electric field responsive fluid and method of preparation |
US3385793A (en) * | 1965-03-19 | 1968-05-28 | Union Oil Co | Electroviscous fluid and method of using same |
SU925520A1 (ru) * | 1980-01-30 | 1982-05-07 | За витель В. С. Чуркин i | Способ изготовлени литейной формы |
EP0478034A1 (fr) * | 1990-08-30 | 1992-04-01 | Asahi Kasei Kogyo Kabushiki Kaisha | Fluide électrorheologique homogène |
JPH04261496A (ja) * | 1991-02-14 | 1992-09-17 | Toyota Motor Corp | 電気粘性流体の分散粒子沈澱防止方法 |
EP0566931A1 (fr) * | 1992-04-24 | 1993-10-27 | BASF Aktiengesellschaft | Suspensions magnétodilatantes |
Non-Patent Citations (2)
Title |
---|
DATABASE WPI Section Ch Week 8310, Derwent World Patents Index; Class M22, AN 83-24583K * |
DATABASE WPI Section Ch Week 9244, Derwent World Patents Index; Class G04, AN 92-360957 * |
Also Published As
Publication number | Publication date |
---|---|
EP0579229A2 (fr) | 1994-01-19 |
DE69321301T2 (de) | 1999-02-25 |
DE69321301D1 (de) | 1998-11-05 |
EP0579229B1 (fr) | 1998-09-30 |
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