CA2148000A1 - Thixotropic Magnetorheological Materials - Google Patents

Thixotropic Magnetorheological Materials

Info

Publication number
CA2148000A1
CA2148000A1 CA2148000A CA2148000A CA2148000A1 CA 2148000 A1 CA2148000 A1 CA 2148000A1 CA 2148000 A CA2148000 A CA 2148000A CA 2148000 A CA2148000 A CA 2148000A CA 2148000 A1 CA2148000 A1 CA 2148000A1
Authority
CA
Canada
Prior art keywords
thixotropic
magnetorheological materials
additive
magnetorheological material
thixotropic additive
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
Application number
CA2148000A
Other languages
French (fr)
Other versions
CA2148000C (en
Inventor
Keith D. Weiss
Donald A. Nixon
J. David Carlson
Anthony J. Margida
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.)
Lord Corp
Original Assignee
Keith D. Weiss
Donald A. Nixon
J. David Carlson
Anthony J. Margida
Lord Corporation
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 Keith D. Weiss, Donald A. Nixon, J. David Carlson, Anthony J. Margida, Lord Corporation filed Critical Keith D. Weiss
Publication of CA2148000A1 publication Critical patent/CA2148000A1/en
Application granted granted Critical
Publication of CA2148000C publication Critical patent/CA2148000C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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

Abstract

A magnetorheological material containing a carrier fluid, a particle component and a thixotropic additive to provide stability against particle settling. The thixotropic additive can be a hydrogen-bonding thixotropic agent, a polymer-modified metal oxide, or a mixture thereof. The utilization of a thixotropic additive creates a thixotropic network which is unusually effective at minimizing particle settling in a magnetorheological material.
CA002148000A 1992-10-30 1993-10-18 Thixotropic magnetorheological materials Expired - Fee Related CA2148000C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US96865592A 1992-10-30 1992-10-30
US07/968,655 1992-10-30
PCT/US1993/009939 WO1994010693A1 (en) 1992-10-30 1993-10-18 Thixotropic magnetorheological materials

Publications (2)

Publication Number Publication Date
CA2148000A1 true CA2148000A1 (en) 1994-05-11
CA2148000C CA2148000C (en) 2000-10-10

Family

ID=25514585

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002148000A Expired - Fee Related CA2148000C (en) 1992-10-30 1993-10-18 Thixotropic magnetorheological materials

Country Status (8)

Country Link
US (1) US5645752A (en)
EP (1) EP0667029B1 (en)
JP (1) JP3335630B2 (en)
CN (1) CN1088020A (en)
CA (1) CA2148000C (en)
DE (1) DE69321247T2 (en)
RU (1) RU2111572C1 (en)
WO (1) WO1994010693A1 (en)

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Also Published As

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EP0667029A4 (en) 1995-06-13
RU2111572C1 (en) 1998-05-20
WO1994010693A1 (en) 1994-05-11
RU95109903A (en) 1997-04-10
CA2148000C (en) 2000-10-10
DE69321247T2 (en) 1999-02-25
CN1088020A (en) 1994-06-15
EP0667029A1 (en) 1995-08-16
EP0667029B1 (en) 1998-09-23
JPH08502783A (en) 1996-03-26
US5645752A (en) 1997-07-08
DE69321247D1 (en) 1998-10-29
JP3335630B2 (en) 2002-10-21

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