DE59406666D1 - HOMOGENEOUS ELECTROVISCOSIC LIQUIDS - Google Patents

HOMOGENEOUS ELECTROVISCOSIC LIQUIDS

Info

Publication number
DE59406666D1
DE59406666D1 DE59406666T DE59406666T DE59406666D1 DE 59406666 D1 DE59406666 D1 DE 59406666D1 DE 59406666 T DE59406666 T DE 59406666T DE 59406666 T DE59406666 T DE 59406666T DE 59406666 D1 DE59406666 D1 DE 59406666D1
Authority
DE
Germany
Prior art keywords
liquids
homogeneous
electroviscosic
aluminium
anhydrides
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 - Fee Related
Application number
DE59406666T
Other languages
German (de)
Inventor
Dietrich Pirck
Hans-Dieter Grasshoff
Harald Kohnz
Peter Finmans
Tobias Carstensen
Dieter Jakubik
Wilfried Weber
Dieter Winkler
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.)
Wintershall Dea International AG
Original Assignee
RWE Dea AG fuer Mineraloel und Chemie
RWE Dea AG
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
Application filed by RWE Dea AG fuer Mineraloel und Chemie, RWE Dea AG filed Critical RWE Dea AG fuer Mineraloel und Chemie
Priority to DE59406666T priority Critical patent/DE59406666D1/en
Application granted granted Critical
Publication of DE59406666D1 publication Critical patent/DE59406666D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/68—Esters
    • C10M129/76—Esters containing free hydroxy or carboxyl groups
    • 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
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/26—Carboxylic acids; Salts thereof
    • C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M129/30—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms
    • C10M129/34—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms polycarboxylic
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

Proposed are homogeneous electroviscous liquids containing or consisting of aluminium soaps made from the reaction products of one or more polycarboxylic acids, or their anhydrides or half-esters, with reactive aluminium compounds. Such liquids exhibit a high electro-rheological effect and are completely homogenous.
DE59406666T 1993-05-28 1994-05-25 HOMOGENEOUS ELECTROVISCOSIC LIQUIDS Expired - Fee Related DE59406666D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE59406666T DE59406666D1 (en) 1993-05-28 1994-05-25 HOMOGENEOUS ELECTROVISCOSIC LIQUIDS

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4317764A DE4317764A1 (en) 1993-05-28 1993-05-28 Homogeneous electroviscous liquids
DE59406666T DE59406666D1 (en) 1993-05-28 1994-05-25 HOMOGENEOUS ELECTROVISCOSIC LIQUIDS
PCT/DE1994/000595 WO1994028096A1 (en) 1993-05-28 1994-05-25 Homogeneous electroviscous liquids

Publications (1)

Publication Number Publication Date
DE59406666D1 true DE59406666D1 (en) 1998-09-17

Family

ID=6489119

Family Applications (3)

Application Number Title Priority Date Filing Date
DE4317764A Withdrawn DE4317764A1 (en) 1991-11-28 1993-05-28 Homogeneous electroviscous liquids
DE59406666T Expired - Fee Related DE59406666D1 (en) 1993-05-28 1994-05-25 HOMOGENEOUS ELECTROVISCOSIC LIQUIDS
DE4493438T Expired - Fee Related DE4493438D2 (en) 1993-05-28 1994-05-25 Homogeneous electroviscous liquids

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE4317764A Withdrawn DE4317764A1 (en) 1991-11-28 1993-05-28 Homogeneous electroviscous liquids

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE4493438T Expired - Fee Related DE4493438D2 (en) 1993-05-28 1994-05-25 Homogeneous electroviscous liquids

Country Status (11)

Country Link
EP (1) EP0652929B1 (en)
JP (1) JP3433942B2 (en)
KR (1) KR100279494B1 (en)
AT (1) ATE169666T1 (en)
AU (1) AU6793094A (en)
BR (1) BR9405380A (en)
CA (1) CA2141205C (en)
CZ (1) CZ292137B6 (en)
DE (3) DE4317764A1 (en)
RU (1) RU95106492A (en)
WO (1) WO1994028096A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10108533C2 (en) * 2001-02-22 2003-09-25 Schenck Ag Carl Torque converter based on electrorheological and / or magnetorheological fluids

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047507A (en) * 1960-04-04 1962-07-31 Wefco Inc Field responsive force transmitting compositions
DE4139065A1 (en) * 1991-11-28 1993-06-17 Rwe Dea Ag HOMOGENEOUS ELECTRIC VISCOUS FLUIDS

Also Published As

Publication number Publication date
CZ17895A3 (en) 1995-09-13
CA2141205A1 (en) 1994-12-08
JPH09505324A (en) 1997-05-27
DE4317764A1 (en) 1994-12-01
AU6793094A (en) 1994-12-20
CZ292137B6 (en) 2003-08-13
JP3433942B2 (en) 2003-08-04
ATE169666T1 (en) 1998-08-15
KR100279494B1 (en) 2001-03-02
EP0652929B1 (en) 1998-08-12
DE4493438D2 (en) 1996-08-22
RU95106492A (en) 1996-11-20
EP0652929A1 (en) 1995-05-17
BR9405380A (en) 1999-09-08
WO1994028096A1 (en) 1994-12-08
CA2141205C (en) 2002-10-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee