FR2401213A2 - Composition de fluide pouvant repondre a l'influence d'un champ electrique - Google Patents
Composition de fluide pouvant repondre a l'influence d'un champ electriqueInfo
- Publication number
- FR2401213A2 FR2401213A2 FR7801688A FR7801688A FR2401213A2 FR 2401213 A2 FR2401213 A2 FR 2401213A2 FR 7801688 A FR7801688 A FR 7801688A FR 7801688 A FR7801688 A FR 7801688A FR 2401213 A2 FR2401213 A2 FR 2401213A2
- Authority
- FR
- France
- Prior art keywords
- acid groups
- water
- fluid
- respond
- influence
- 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.)
- Granted
Links
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Lubricants (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
L'invention décrit de nouvelles compositions de fluides présentant des variations de la viscosité apparente sous l'influence d'un champ électrique. La composition comprend, en dispersion dans un véhicule oléagineux non conducteur de l'électricité, des particules d'une matière polymère comportant des groupes acides libres ou neutralisés, ayant une densité non supérieure à 1,8 et présentant certaines caractéristiques de teneur en eau et de pouvoir d'absorption de l'eau. La composition peut notamment servir dans des dispositifs d'accouplement ou d'embrayage.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/760,977 US4129513A (en) | 1974-07-09 | 1977-01-21 | Electric field responsive fluids |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2401213A2 true FR2401213A2 (fr) | 1979-03-23 |
FR2401213B2 FR2401213B2 (fr) | 1983-01-28 |
Family
ID=25060746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7801688A Granted FR2401213A2 (fr) | 1977-01-21 | 1978-01-20 | Composition de fluide pouvant repondre a l'influence d'un champ electrique |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5393186A (fr) |
CH (1) | CH634435A5 (fr) |
DE (1) | DE2802494A1 (fr) |
FR (1) | FR2401213A2 (fr) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3431823A1 (de) * | 1984-08-30 | 1986-03-13 | Alfred Teves Gmbh, 6000 Frankfurt | Servoeinrichtung, insbesondere fuer eine kraftfahrzeug-bremsanlage |
JPS62149644A (ja) * | 1985-12-25 | 1987-07-03 | Tokuyama Soda Co Ltd | 接着性組成物 |
DE3609861A1 (de) * | 1986-03-22 | 1987-09-24 | Bayer Ag | Sensorgesteuertes hydraulisches system mit elektroviskosen fluessigkeiten |
US5252249A (en) | 1990-04-26 | 1993-10-12 | Bridgestone Corporation | Powder and electrorheological fluid |
EP0529166A1 (fr) * | 1991-08-29 | 1993-03-03 | Nippon Shokubai Co., Ltd. | Fluides électrorhéologiques |
DE4142634C1 (fr) * | 1991-12-21 | 1993-03-25 | Heraeus Instruments Gmbh, 6450 Hanau, De | |
DE69225340T2 (de) * | 1991-12-27 | 1998-08-27 | Nippon Oil Co Ltd | Elektrorheologische Flüssigkeit mit karbonhaltigen Teilchen in anisotroper Form |
US5702630A (en) * | 1992-07-16 | 1997-12-30 | Nippon Oil Company, Ltd. | Fluid having both magnetic and electrorheological characteristics |
US5536426A (en) * | 1993-05-21 | 1996-07-16 | Nippon Oil Company, Ltd. | Electrorheological fluid containing carbonaceous particles |
JP3352759B2 (ja) * | 1993-06-16 | 2002-12-03 | 日本メクトロン株式会社 | 電気粘性流体の製造方法 |
JP3352760B2 (ja) * | 1993-06-16 | 2002-12-03 | 日本メクトロン株式会社 | 電気粘性流体の製造方法 |
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。 |
US5693367A (en) * | 1995-03-24 | 1997-12-02 | Bridgestone Corporation | Process for producing a powder material for an electro-rheological fluid |
JPH09255982A (ja) * | 1996-03-26 | 1997-09-30 | Nippon Oil Co Ltd | 電気粘性流体 |
JPH1081889A (ja) | 1996-09-06 | 1998-03-31 | Bridgestone Corp | 電気粘性流体用粉体 |
US6352651B1 (en) | 1998-06-08 | 2002-03-05 | Bridgestone Corporation | Electrorheological fluid |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3255853A (en) * | 1963-01-16 | 1966-06-14 | Union Oil Co | Electro fluid clutch responsive to electrophoretic principles |
US3400796A (en) * | 1966-08-10 | 1968-09-10 | Mobil Oil Corp | Power transmission device employing a shear thickening liquid |
US3701732A (en) * | 1971-03-26 | 1972-10-31 | Monsanto Co | Functional fluid compositions |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1382512A (en) * | 1972-07-21 | 1975-02-05 | Du Pont | Electrodeposition of fluorocarbon polymers |
GB1501635A (en) * | 1974-07-09 | 1978-02-22 | Secr Defence | Electric field responsive fluids |
-
1978
- 1978-01-20 FR FR7801688A patent/FR2401213A2/fr active Granted
- 1978-01-20 JP JP513178A patent/JPS5393186A/ja active Granted
- 1978-01-20 DE DE19782802494 patent/DE2802494A1/de active Granted
- 1978-01-23 CH CH69178A patent/CH634435A5/de not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3255853A (en) * | 1963-01-16 | 1966-06-14 | Union Oil Co | Electro fluid clutch responsive to electrophoretic principles |
US3400796A (en) * | 1966-08-10 | 1968-09-10 | Mobil Oil Corp | Power transmission device employing a shear thickening liquid |
US3701732A (en) * | 1971-03-26 | 1972-10-31 | Monsanto Co | Functional fluid compositions |
Also Published As
Publication number | Publication date |
---|---|
CH634435A5 (en) | 1983-01-31 |
FR2401213B2 (fr) | 1983-01-28 |
JPS6326151B2 (fr) | 1988-05-28 |
DE2802494C2 (fr) | 1990-04-05 |
JPS5393186A (en) | 1978-08-15 |
DE2802494A1 (de) | 1978-08-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
TP | Transmission of property |