公开(公告)号：US5711897A

公开(公告)日：1998-01-27

申请号：US615368

申请日：1996-03-14

申请人： Kathleen O. Havelka ,  Joseph W. Pialet

发明人： Kathleen O. Havelka ,  Joseph W. Pialet

IPC分类号： F16D25/00 ,  C10M169/04 ,  C10M171/00 ,  C10N20/00 ,  C10N20/02 ,  C10N20/06 ,  C10N30/00 ,  C10N40/14

CPC分类号： C10M171/001

摘要： An electrorheological fluid of a particulate phase and a continuous phase of a hydrophobic liquid medium, a certain dispersed particulate phase, and a low molecular weight polar material exhibits a broad effective temperature range. The dispersed particulate phase comprises a polar solid material which is capable of exhibiting substantial electrorheological activity only in the presence of a low molecular weight polar material, and an organic semiconductor. The weight ratio of the polar solid material to the organic semiconductor is at least about 2:1.

公开(公告)号：US5879582A

公开(公告)日：1999-03-09

申请号：US970905

申请日：1997-11-14

申请人： Kathleen O. Havelka ,  Joseph W. Pialet

发明人： Kathleen O. Havelka ,  Joseph W. Pialet

IPC分类号： F16D25/00 ,  C10M169/04 ,  C10M171/00 ,  C10N20/00 ,  C10N20/02 ,  C10N20/06 ,  C10N30/00 ,  C10N40/14

CPC分类号： C10M171/001

摘要： An electrorheological fluid of a particulate phase and a continuous phase of a hydrophobic liquid medium, a certain dispersed particulate phase, and a low molecular weight polar material exhibits a broad effective temperature range. The dispersed particulate phase comprises a polar solid material which is capable of exhibiting substantial electrorheological activity only in the presence of a low molecular weight polar material, and an organic semiconductor. The weight ratio of the polar solid material to the organic semiconductor is at least about 2:1.

摘要翻译： 疏水性液体介质，某种分散的颗粒相和低分子量极性材料的颗粒相和连续相的电流变流体表现出广泛的有效温度范围。 分散的颗粒相包含极性固体材料，其仅在低分子量极性材料和有机半导体的存在下才能显示出显着的电流变活性。 极性固体材料与有机半导体的重量比为至少约2:1。

公开(公告)号：US20080241371A1

公开(公告)日：2008-10-02

申请号：US10597477

申请日：2005-01-27

申请人： Kathleen O. Havelka ,  William P. Taylor ,  Carlos A. Piedrahita ,  Constance F. Williams ,  Robert N. Sole ,  Gilbert R. Malone ,  Okson Yi

发明人： Kathleen O. Havelka ,  William P. Taylor ,  Carlos A. Piedrahita ,  Constance F. Williams ,  Robert N. Sole ,  Gilbert R. Malone ,  Okson Yi

IPC分类号： C09D5/00 ,  C09B67/00

CPC分类号： C09D5/008

摘要： A highly water resistant coating is described for use as a temporary protective or tinting finish for a wide variety of personal items, including one's vehicle and tires. The film forming polymer of the coating is desirable as it can be applied with polar solvents but then upon evaporation of a solubilizing additive becomes water resistant or water proof. Thereafter if a similar solubilizing additive is used in a polar solvent, the coating can be removed without damaging the surface of the substrate.

摘要翻译： 描述了高度防水的涂层，用作各种个人物品（包括车辆和轮胎）的临时保护或着色漆。 涂层的成膜聚合物是理想的，因为它可以用极性溶剂施用，但是随着溶解添加剂的蒸发变得防水或防水。 此后，如果在极性溶剂中使用类似的增溶添加剂，则可以除去涂层而不损坏基材的表面。

公开(公告)号：US5429761A

公开(公告)日：1995-07-04

申请号：US227814

申请日：1994-04-14

申请人： Kathleen O. Havelka ,  Edward A. Collins

发明人： Kathleen O. Havelka ,  Edward A. Collins

IPC分类号： C09K3/00 ,  C10M169/04 ,  C10M171/00 ,  C10N10/04 ,  C10N30/08 ,  C10N40/04 ,  C10N40/06 ,  C10N40/14

CPC分类号： C10M171/001

摘要： Electrorheological fluids of a hydrophobic liquid phase and, dispersed therein, electrorheologically active particles comprising a core particle and a coating of a metal carbonate, sulfate, thiosulfate, or sulfite exhibit reduced electrical conductivity compared with similar fluids containing uncoated particles.

摘要翻译： 疏水性液相的电流变流体和分散在其中的包含核心颗粒的电化学活性颗粒和金属碳酸盐，硫酸盐，硫代硫酸盐或亚硫酸盐的涂层与含有未涂覆颗粒的类似流体相比显示出降低的电导率。

公开(公告)号：US20080221253A1

公开(公告)日：2008-09-11

申请号：US10598084

申请日：2005-02-09

申请人： Joseph G. Seebauer ,  Kathleen O. Havelka ,  Richard M. Lange

发明人： Joseph G. Seebauer ,  Kathleen O. Havelka ,  Richard M. Lange

IPC分类号： C08F2/22

CPC分类号： C08F220/58

摘要： The lipophilic properties of an ethylenically unsaturated water-soluble polymerizable sulfonic acids are improved by forming a salt thereof with a lipophilic amine. Such salts are readily polymerized in an emulsion or solution process.

摘要翻译： 烯键式不饱和水溶性可聚合磺酸的亲油性质通过与亲脂性胺形成其盐而改善。 这样的盐很容易在乳液或溶液过程中聚合。

公开(公告)号：US07740483B2

公开(公告)日：2010-06-22

申请号：US11259590

申请日：2005-10-26

申请人： William P. Taylor ,  Kathleen O. Havelka

发明人： William P. Taylor ,  Kathleen O. Havelka

IPC分类号： G09B25/00

CPC分类号： G01N11/14

摘要： A portable apparatus and method for demonstrating different characteristics of different fluids that includes different fluid sumps or chambers for receiving samples of the different fluids. A test shaft having different portions that are immersed in the different fluid samples in the chambers is driven by an electric drive motor at a substantially constant speed while substantially the same amount of friction or force is applied to the different portions of the test shaft at different times to increase the resistance presented to the drive motor. The additional amount of current drawn or power absorbed by the motor or strain induced in the motor drive shaft during the application of such friction or force to the different portions of the test shaft is monitored and compared to provide a comparison of the friction or power loss characteristics of the different fluid samples.

摘要翻译： 用于展示不同流体的不同特性的便携式装置和方法，其包括用于接收不同流体的样品的不同流体池或室。 具有浸没在室中的不同流体样品中的不同部分的测试轴由电动驱动马达以基本上恒定的速度驱动，同时基本上相同数量的摩擦力或力在不同的试验轴的不同部分施加 次增加驱动电机的阻力。 监测和比较在将这种摩擦力或力施加到测试轴的不同部分时在马达驱动轴中感应的马达或应变吸收的额外电流量或功率，以提供摩擦或功率损耗的比较 不同流体样品的特性。