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141 条记录 (耗时 0.015 秒)

    Ferrofluid compositions
    72.
    发明授权
    Ferrofluid compositions 失效
    氟化物组合物

    公开(公告)号：US5085789A

    公开(公告)日：1992-02-04

    申请号：US515353

    申请日：1990-04-30

    申请人： Atsushi Yokouchi ,  Toshikazu Yabe

    发明人： Atsushi Yokouchi ,  Toshikazu Yabe

    IPC分类号： C10M169/04 ,  C10N10/14 ,  C10N10/16 ,  C10N40/14 ,  H01F1/12 ,  H01F1/34 ,  H01F1/44

    CPC分类号： H01F1/44

    摘要： A ferrofluid composition is defined by fine particles of ferromagnetic material, a liquid carrier for dispersing the ferromagnetic material and a surfactant or surfactants acting as a dispersant. The surfactant is required to have such relation to the carrier that the surfactant has, as its hydrophobic group portion, a structure equivalent to the carrier, and the carrier is selected to be either an alkylpolyphenyl ether oil, an alkylnaphthalene oil or both. By virtue of this structural feature, fine ferromagnetic particles are uniformly and stably dispersed throughout the carrier which has low viscosity and is thermally very stable.

    摘要翻译： 铁磁流体组合物由铁磁材料的细颗粒，用于分散铁磁材料的液体载体和用作分散剂的表面活性剂或表面活性剂来限定。 表面活性剂需要与表面活性剂具有与载体相当的结构的载体具有这样的关系，并且载体选择为烷基聚苯基醚油，烷基萘油或二者。 由于这种结构特征，精细的铁磁颗粒均匀且稳定地分散在具有低粘度并且热非常稳定的载体中。

    Magnetic fluid, method for producing it and magnetic seal means using the same
    74.
    发明授权
    Magnetic fluid, method for producing it and magnetic seal means using the same 失效
    磁性液体及其制造方法及使用其的磁性密封装置

    公开(公告)号：US5013471A

    公开(公告)日：1991-05-07

    申请号：US359337

    申请日：1989-05-31

    申请人： Kazufumi Ogawa

    发明人： Kazufumi Ogawa

    IPC分类号： F16J15/43 ,  C10M125/16 ,  C10N10/16 ,  C10N20/06 ,  C10N40/14 ,  C10N70/00 ,  F16J15/40 ,  H01F1/12 ,  H01F1/34 ,  H01F1/44

    CPC分类号： B82Y30/00 ,  H01F1/44

    摘要： Disclosed herein are a magnetic fluid, a method for the production thereof, and a magnetic seal apparatus using the same, characterized in that the surfaces of ferromagnetic particles are covered with a monomolecular adsorbed film composed of a chloro-silane type surfactant, and the coated particles are dispersed in an oil. A magnetic seal apparatus using such a magnetic fluid.

    摘要翻译： 本文公开了一种磁性流体，其制造方法和使用该磁性流体的磁性密封装置，其特征在于，铁磁颗粒的表面被由氯 - 硅烷型表面活性剂组成的单分子吸附膜覆盖，并且涂覆 颗粒分散在油中。 使用这种磁性流体的磁性密封装置。

    Electrorheological fluids based on silicone ionomer particles
    75.
    发明授权
    Electrorheological fluids based on silicone ionomer particles 失效
    基于有机硅离聚物颗粒的电流变流体

    公开(公告)号：US4994198A

    公开(公告)日：1991-02-19

    申请号：US471587

    申请日：1990-01-29

    申请人： Kyuha Chung

    发明人： Kyuha Chung

    IPC分类号： C10M159/12 ,  C08L83/04 ,  C10M171/00 ,  C10N20/00 ,  C10N30/04 ,  C10N40/04 ,  C10N40/14

    CPC分类号： C10M171/001 ,  C08L83/04 ,  C08G77/24 ,  C08G77/26 ,  C08G77/70

    摘要： This invention relates to an electrorheological (ER) fluid composition comprising a suspension of a solid silicone ionomer in an electrically non-conducting liquid wherein the silicone ionomer is a reaction product of (I) an amine functional diorganopolysiloxane having a degree of polymerization of less than about 10,000 in which at least about 3 mole percent of the silicon atoms have attached thereto, through silicon-carbon bonds, an amine functional organic group bearing at least one --NHR" group, in which R" is selected from the group consisting of hydrogen and an alkyl radical having 1 to 6 carbon atoms; and (II) an acid.

    Perfluoropolyethers used as fluids for testing in electronic field
    76.
    发明授权
    Perfluoropolyethers used as fluids for testing in electronic field 失效
    全氟聚醚用作电子测试中的流体

    公开(公告)号：US4955726A

    公开(公告)日：1990-09-11

    申请号：US195356

    申请日：1988-05-16

    申请人： Gianangelo Bargigia ,  Gerardo Caporiccio ,  Claudio Tonelli ,  Luciano Flabbi ,  Giuseppe Marchionni

    发明人： Gianangelo Bargigia ,  Gerardo Caporiccio ,  Claudio Tonelli ,  Luciano Flabbi ,  Giuseppe Marchionni

    IPC分类号： G01R31/26 ,  C10M105/54 ,  C10M107/38 ,  C10N20/00 ,  C10N20/02 ,  C10N40/00 ,  C10N40/14 ,  G01M3/20 ,  G01M3/22 ,  G01N25/00 ,  G01R31/30

    CPC分类号： G01N25/00 ,  G01M3/226

    摘要： Perfluoropolyethers having an average molecular weight higher than 390 and respectively having a kinematic viscosity lower than 8.5 cSt (at 20.degree. C.), and such as to distill by not more than 10% at temperatures lower than 140.degree. C., and by at least 90% at temperatures not higher than 260.degree. C., or, in the case in which the perfluoropolyether does not contain CF(CF.sub.3)CF.sub.2 O units, having a viscosity lower than 18 cSt (at 20.degree. C.), and such as to distill by not more than 10% at temperatures lower than 140.degree. C., and by at least 90% at temperatures not higher than 280.degree. C., are used as the only high-temperature and low-temperature working fluid in the Thermal Shock Tests to which the electronic components are submitted, and at the same time are advantageously used in other tests used in the electronic industry, such as the Gross Leak Test and the Burn in Test, allowing the operators in this field to use one single fluid for a whole set of uses.

    摘要翻译： 平均分子量高于390且运动粘度低于8.5cSt（20℃）的全氟聚醚，并且在低于140℃的温度下蒸馏不超过10％，并且在 在不高于260℃的温度下至少90％，或者全氟聚醚不含CF（CF 3）CF 2 O单元，粘度低于18cSt（20℃）的情况下，例如 在低于140℃的温度下蒸馏不超过10％，在不高于280℃的温度下蒸馏至少90％，被用作热量中唯一的高温和低温工作流体 电子元件提供的冲击测试，同时有利地用于电子工业中使用的其他测试，如总泄漏测试和在测试中的刻录，允许该领域的操作者使用一个单一的流体 用于一整套用途。

    Electroviscous fluids
    79.
    发明授权
    Electroviscous fluids 失效
    电解液

    公开(公告)号：US4502973A

    公开(公告)日：1985-03-05

    申请号：US466337

    申请日：1983-02-03

    申请人： James E. Stangroom

    发明人： James E. Stangroom

    IPC分类号： C10M105/50 ,  C07C17/12 ,  C08K5/00 ,  C10M105/72 ,  C10M105/76 ,  C10M171/00 ,  C10N40/14 ,  H01B3/24 ,  C09K3/00

    CPC分类号： C10M171/001 ,  C07C17/12 ,  C08K5/0008

    摘要： Electroviscous (EV) fluids consisting of solid hydrophilic particles dispersed in hydrophobic liquids, where the liquid contains a diaryl derivative component of general formula I ##STR1## in which R is CY.sub.2,O,S,SO,SO.sub.2,SiF.sub.2, or O--SiY.sub.2 --O,X.sup.1 and X.sup.2 are halogens, (m+n) is between 1 and 3 on average, and (p+q) is between 0 and 1 on average. EV fluids containing these novel components possess generally improved properties in terms of lower viscosities, electrical conductivities, toxicities and freezing points. In a preferred embodiment, the component is a mixture of brominated diphenyl methanes in which R is CH.sub.2,n=O,X.sup.1 =Br,(m+n) is approximately one, and (p+q)=0.

    摘要翻译： PCT No.PCT / GB82 / 00183 Sec。 371日期1983年2月3日 102（e）日期1983年2月3日PCT申请1982年6月18日PCT公布。 公开号WO82 / 04442 1982年12月23日，由分散在疏水液体中的固体亲水性颗粒组成的电粘液（EV）流体，其中液体含有通式I的二芳基衍生物组分，其中R是CY2，O，S，SO， SO2，SiF2或O-SiY2-O，X1和X2是卤素，（m + n）平均在1和3之间，（p + q）平均在0和1之间。 含有这些新型组分的EV流体在粘度较低，电导率，毒性和凝固点方面具有一般性能的改善。 在优选的实施方案中，组分是溴化二苯甲烷的混合物，其中R是CH 2，n = O，X 1 = Br，（m + n）约为1，（p + q）= 0。