公开(公告)号：EP0672294A4

公开(公告)日：1995-06-14

申请号：EP94900405

申请日：1993-10-27

Applicant: LORD CORP

Inventor： WEISS KEITH D ,  CARLSON J DAVID ,  NIXON DONALD A

IPC: C10M125/04 ,  C10M125/10 ,  C10M125/12 ,  C10M171/00 ,  C10M177/00 ,  C10N10/04 ,  C10N10/06 ,  C10N10/08 ,  C10N10/12 ,  C10N10/16 ,  C10N20/06 ,  C10N30/00 ,  C10N30/06 ,  C10N40/14 ,  C10N70/00 ,  H01F1/28 ,  H01F1/44

CPC classification number: H01F1/447

Abstract: A magnetorheological material containing a carrier fluid and a magnetically active particle. The particle has been modified so that the surface of the particle is substantially free of contamination products. The contamination products are removed from the surface of the particle by abrader processing, chemical treatment or a combination thereof. Magnetorheological materials prepared using the particles from which contamination products have been removed exhibit significantly enhanced magnetorheological effects.

Abstract translation: 含有载体流体和磁性活性粒子的磁流变材料。 颗粒已经被改性，使得颗粒的表面基本上没有污染产物。 污染产物通过研磨剂处理，化学处理或其组合从颗粒的表面除去。 使用去除污染物质的颗粒制备的磁流变材料显示出显着增强的磁流变效应。

公开(公告)号：EP0667029A4

公开(公告)日：1995-06-13

申请号：EP94900358

申请日：1993-10-18

Applicant: LORD CORP

Inventor： WEISS KEITH D ,  NIXON DONALD A ,  CARLSON J DAVID ,  MARGIDA ANTHONY J

IPC: C10M125/26 ,  C10M139/04 ,  C10M155/02 ,  C10N10/08 ,  C10N20/04 ,  C10N20/06 ,  C10N30/04 ,  C10N30/06 ,  C10N40/14 ,  H01F1/28 ,  H01F1/44

CPC classification number: H01F1/447

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.

Abstract translation: 含有载体流体，颗粒组分和触变添加剂的磁流变材料，以提供抗颗粒沉降的稳定性。 触变添加剂可以是氢键触变剂，聚合物改性的金属氧化物或其混合物。 触变添加剂的使用产生触变网络，其在使磁流变材料中的颗粒沉降最小化方面异常有效。

公开(公告)号：EP0755563A4

公开(公告)日：1997-07-16

申请号：EP95915580

申请日：1995-04-06

Applicant: LORD CORP

Inventor： WEISS KEITH D ,  CARLSON J DAVID ,  NIXON DONALD A

IPC: C10M125/04 ,  C10M125/10 ,  C10M125/12 ,  C10M171/00 ,  C10M177/00 ,  C10N10/04 ,  C10N10/06 ,  C10N10/08 ,  C10N10/12 ,  C10N10/16 ,  C10N20/06 ,  C10N30/00 ,  C10N30/06 ,  C10N40/14 ,  C10N70/00 ,  H01F1/28 ,  H01F1/44

CPC classification number: H01F1/447

Abstract: A magnetorheological material containing a carrier fluid and a magnetically active particle. The particle has been modified so that the surface of the particle is substantially free of contamination products. The contamination products are removed from the surface of the particle by abrader processing, chemical treatment or a combination thereof. Magnetorheological materials prepared using the particles from which contamination products have been removed exhibit significantly enhanced magnetorheological effects.

公开(公告)号：CA2148000A1

公开(公告)日：1994-05-11

申请号：CA2148000

申请日：1993-10-18

Applicant: LORD CORP

Inventor： WEISS KEITH D ,  NIXON DONALD A ,  CARLSON J DAVID ,  MARGIDA ANTHONY J

IPC: C10M125/26 ,  C10M139/04 ,  C10M155/02 ,  C10N10/08 ,  C10N20/04 ,  C10N20/06 ,  C10N30/04 ,  C10N30/06 ,  C10N40/14 ,  H01F1/28 ,  H01F1/44

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.

公开(公告)号：CA2186955A1

公开(公告)日：1995-10-26

申请号：CA2186955

申请日：1995-04-06

Applicant: LORD CORP

Inventor： WEISS KEITH D ,  CARLSON J DAVID ,  NIXON DONALD A

IPC: C10M125/04 ,  C10M125/10 ,  C10M125/12 ,  C10M171/00 ,  C10M177/00 ,  C10N10/04 ,  C10N10/06 ,  C10N10/08 ,  C10N10/12 ,  C10N10/16 ,  C10N20/06 ,  C10N30/00 ,  C10N30/06 ,  C10N40/14 ,  C10N70/00 ,  H01F1/28 ,  H01F1/44

公开(公告)号：CA2232192A1

公开(公告)日：1997-04-24

申请号：CA2232192

申请日：1996-10-02

Applicant: LORD CORP

Inventor： WEISS KEITH D ,  NIXON DONALD A ,  CARLSON J DAVID

IPC: G01N11/14 ,  H01F1/44 ,  G05D15/00

Abstract: A magnetorheological fluid that includes a carrier component and a magnetizable particle component wherein the magnetizable particle component has a fraction packing density of at least 0.50 prior to formulation into the magnetorheological fluid. Use of this magnetorheological fluid can increase the force output of a magnetorheological device without increasing the viscosity of the fluid because the particle volume concentration in a working gap of the device increases when a magnetic field is applied.

公开(公告)号：CA2148001A1

公开(公告)日：1994-05-11

申请号：CA2148001

申请日：1993-10-27

Applicant: LORD CORP

Inventor： WEISS KEITH D ,  CARLSON J DAVID ,  NIXON DONALD A

IPC: C10M125/04 ,  C10M125/10 ,  C10M125/12 ,  C10M171/00 ,  C10M177/00 ,  C10N10/04 ,  C10N10/06 ,  C10N10/08 ,  C10N10/12 ,  C10N10/16 ,  C10N20/06 ,  C10N30/00 ,  C10N30/06 ,  C10N40/14 ,  C10N70/00 ,  H01F1/28 ,  H01F1/44 ,  C10M125/00 ,  H01F1/36

Abstract: 2148001 9410694 PCTABS00032 A magnetorheological material containing a carrier fluid and a magnetically active particle. The particle has been modified so that the surface of the particle is substantially free of contamination products. The contamination products are removed from the surface of the particle by abrader processing, chemical treatment or a combination thereof. Magnetorheological materials prepared using the particles from which contamination products have been removed exhibit significantly enhanced magnetorheological effects.