BR9405380A - Homogeneous electroviscid liquids. - Google Patents

Homogeneous electroviscid liquids.

Info

Publication number
BR9405380A
BR9405380A BR9405380-4A BR9405380A BR9405380A BR 9405380 A BR9405380 A BR 9405380A BR 9405380 A BR9405380 A BR 9405380A BR 9405380 A BR9405380 A BR 9405380A
Authority
BR
Brazil
Prior art keywords
liquids
homogeneous
electroviscid
aluminium
anhydrides
Prior art date
Application number
BR9405380-4A
Other languages
Portuguese (pt)
Inventor
Dietrich Pirck
Hans Dieter Grasshoff
Harald Kohnz
Peter Finmans
Tobias Carstensen
Dieter Jakibik
Original Assignee
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 filed Critical Rwe Dea Ag
Publication of BR9405380A publication Critical patent/BR9405380A/en

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.
BR9405380-4A 1993-05-28 1994-05-25 Homogeneous electroviscid liquids. BR9405380A (en)

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
BR9405380A true BR9405380A (en) 1999-09-08

Family

ID=6489119

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9405380-4A BR9405380A (en) 1993-05-28 1994-05-25 Homogeneous electroviscid 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
RU95106492A (en) 1996-11-20
CA2141205C (en) 2002-10-15
EP0652929A1 (en) 1995-05-17
AU6793094A (en) 1994-12-20
WO1994028096A1 (en) 1994-12-08
DE4493438D2 (en) 1996-08-22
CZ292137B6 (en) 2003-08-13
CA2141205A1 (en) 1994-12-08
ATE169666T1 (en) 1998-08-15
CZ17895A3 (en) 1995-09-13
JP3433942B2 (en) 2003-08-04
JPH09505324A (en) 1997-05-27
DE59406666D1 (en) 1998-09-17
DE4317764A1 (en) 1994-12-01
KR100279494B1 (en) 2001-03-02
EP0652929B1 (en) 1998-08-12

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Legal Events

Date Code Title Description
EG Technical examination (opinion): publication of technical examination (opinion)
FC Decision: refusal