DE2802494C2 - - Google Patents

Info

Publication number
DE2802494C2
DE2802494C2 DE19782802494 DE2802494A DE2802494C2 DE 2802494 C2 DE2802494 C2 DE 2802494C2 DE 19782802494 DE19782802494 DE 19782802494 DE 2802494 A DE2802494 A DE 2802494A DE 2802494 C2 DE2802494 C2 DE 2802494C2
Authority
DE
Germany
Prior art keywords
polymer
fluid according
fluid
acid
water
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.)
Expired - Lifetime
Application number
DE19782802494
Other languages
German (de)
English (en)
Other versions
DE2802494A1 (de
Inventor
James Edward Castleton Sheffield Derbyshire Gb Stangroom
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.)
BTG International Ltd
Original Assignee
National Research Development Corp UK
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
Priority claimed from US05/760,977 external-priority patent/US4129513A/en
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Publication of DE2802494A1 publication Critical patent/DE2802494A1/de
Application granted granted Critical
Publication of DE2802494C2 publication Critical patent/DE2802494C2/de
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M171/00Lubricating 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
    • C10M171/001Electrorheological fluids; smart fluids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00Compositions 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
    • C08L33/02Homopolymers or copolymers of acids; Metal or ammonium salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Lubricants (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
DE19782802494 1977-01-21 1978-01-20 Elektroviskose fluidzusammensetzung Granted DE2802494A1 (de)

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
DE2802494A1 DE2802494A1 (de) 1978-08-17
DE2802494C2 true DE2802494C2 (enrdf_load_stackoverflow) 1990-04-05

Family

ID=25060746

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782802494 Granted DE2802494A1 (de) 1977-01-21 1978-01-20 Elektroviskose fluidzusammensetzung

Country Status (4)

Country Link
JP (1) JPS5393186A (enrdf_load_stackoverflow)
CH (1) CH634435A5 (enrdf_load_stackoverflow)
DE (1) DE2802494A1 (enrdf_load_stackoverflow)
FR (1) FR2401213A2 (enrdf_load_stackoverflow)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
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 (en) * 1991-08-29 1993-03-03 Nippon Shokubai Co., Ltd. Electrorheological fluids
DE4142634C1 (enrdf_load_stackoverflow) * 1991-12-21 1993-03-25 Heraeus Instruments Gmbh, 6450 Hanau, De
EP0678570B1 (en) * 1991-12-27 1998-04-29 Nippon Oil Company, Ltd. Electrorheological fluid having carbonaceous particles with shape anisotropy
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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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
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

Also Published As

Publication number Publication date
DE2802494A1 (de) 1978-08-17
JPS6326151B2 (enrdf_load_stackoverflow) 1988-05-28
JPS5393186A (en) 1978-08-15
FR2401213A2 (fr) 1979-03-23
FR2401213B2 (enrdf_load_stackoverflow) 1983-01-28
CH634435A5 (en) 1983-01-31

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: NATIONAL RESEARCH DEVELOPMENT CORP., LONDON, GB

8128 New person/name/address of the agent

Representative=s name: BEETZ SEN., R., DIPL.-ING. BEETZ JUN., R., DIPL.-I

D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: BRITISH TECHNOLOGY GROUP LTD., LONDON, GB

8328 Change in the person/name/address of the agent

Free format text: BEETZ, R., DIPL.-ING. DR.-ING. TIMPE, W., DR.-ING. SIEGFRIED, J., DIPL.-ING. SCHMITT-FUMIAN, W., PROF. DIPL.-CHEM. DR.RER.NAT. MAYR, C., DIPL.-PHYS.DR.RER.NAT., PAT.-ANWAELTE, 80538 MUENCHEN

8339 Ceased/non-payment of the annual fee