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公开(公告)号:US5294310A
公开(公告)日:1994-03-15
申请号:US913658
申请日:1992-07-16
CPC分类号: C02F1/463 , C02F2101/327 , C02F2101/34
摘要: Surfactants in an aqueous solution is recovered from polychlorinated biphenyls and other aromatic organic compounds contaminating the solution. An electrical current is passed through a surfactant-containing aqueous solution contaminated with a colloidal dispersion of organic compounds at a voltage sufficient to electrochemically breakup the dispersion without polymerizing the surfactant. The contaminating aromatic organic compounds are then separated from the surfactant-containing aqueous solution. The separated surfactant-containing aqueous solution may be recirculated to a waste treatment process for cleaning additional organic compounds from contaminated equipment.
摘要翻译: 从多氯联苯和其他污染溶液的芳族有机化合物中回收水溶液中的表面活性剂。 电流通过含有表面活性剂的水溶液,该水溶液以足以电化学分解分散体的电压而不会使表面活性剂聚合而被有机化合物的胶态分散体污染。 然后将污染的芳族有机化合物与含表面活性剂的水溶液分离。 分离的含表面活性剂的水溶液可以再循环到废物处理过程中,以从污染的设备中清除附加的有机化合物。
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公开(公告)号:US5339038A
公开(公告)日:1994-08-16
申请号:US910854
申请日:1992-07-06
IPC分类号: G01R31/02
CPC分类号: G01R31/021
摘要: An assembly for protecting a conduit having a core and an axial length, which length is susceptible to being pinched by a structure is disclosed. The conduit includes an insulating coating in surrounding relationship about the core, with the assembly including a semiconductive layer in surrounding relationship about the insulating coating, and a switching layer in surrounding relationship about the semiconductive layer. The semiconductive layer being formed from partially vulcanized ethylene propylene rubber including particles of a conductive element in the form of carbon black, silver, nickel, aluminum or the like. The switching layer is non-conductive in its unstressed state and conductive when pinched such that the switching layer completes a current flow path between the semiconductive layer and either a grounded structure or another conductive layer, which condition may then be detected.
摘要翻译: 公开了一种用于保护具有芯部和轴向长度的导管的组件,该长度易于受到结构的挤压。 所述导管包括围绕所述芯的围绕关系的绝缘涂层,所述组件包括围绕所述绝缘涂层的围绕关系的半导体层以及围绕所述半导体层的围绕关系的开关层。 半导电层由部分硫化的乙丙橡胶形成,包括炭黑,银,镍,铝等形式的导电元件的颗粒。 开关层在其未受应力状态下是非导通的,并且当被夹持时导通,使得开关层完成半导体层与接地结构或另一导电层之间的电流流动路径,然后可以检测该条件。
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公开(公告)号:US4999136A
公开(公告)日:1991-03-12
申请号:US235089
申请日:1988-08-23
IPC分类号: C08F299/02 , H01B1/22 , H05K1/18 , H05K3/30 , H05K3/32
CPC分类号: H01B1/22 , C08F299/028 , H05K3/305 , H05K3/321 , H05K1/181 , H05K2201/10636 , Y02P70/611 , Y02P70/613 , Y10S428/901
摘要: A UV curable electrically conductive adhesive has been developed with low resistivity, adequate lap shear strength, good thermal stability, and very stable conductivity at high temperatures of about 100.degree. C. and high humidity. The adhesive may be applied by silk screen printing and cured by UV in about 8 seconds. The adhesive may also be used as a replacement of solder in automated surface mount technology for electronic circuit fabrication. The adhesive is a mixture of (A) a blend of an acrylate epoxy and a urethane, a copolymer of an acrylate epoxy and a urethane, or mixtures thereof; (B) a polyfunctional acrylate monomer; (C) a photoinitiator, and (D) a conductive filler. Optionally, adhesion promoters and flow control agents may be used.
摘要翻译: 紫外线固化导电粘合剂已经开发出具有低电阻率,足够的搭接剪切强度,良好的热稳定性和在约100℃和高湿度的高温下非常稳定的导电性。 粘合剂可以通过丝网印刷施加,并通过UV固化约8秒。 粘合剂也可用作替代用于电子电路制造的自动表面贴装技术中的焊料。 粘合剂是(A)丙烯酸酯环氧树脂和氨基甲酸酯的共混物,丙烯酸酯环氧树脂和氨基甲酸酯的共聚物或其混合物的混合物; (B)多官能丙烯酸酯单体; (C)光引发剂,(D)导电填料。 任选地,可以使用粘合促进剂和流动控制剂。
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公开(公告)号:US5772820A
公开(公告)日:1998-06-30
申请号:US685885
申请日:1996-07-25
申请人: Karl F. Schoch, Jr. , Theodore R. Vasilow , Andrew J. Piloto , Deborah P. Partlow , Kenneth C. Radford
发明人: Karl F. Schoch, Jr. , Theodore R. Vasilow , Andrew J. Piloto , Deborah P. Partlow , Kenneth C. Radford
CPC分类号: C01G49/009 , H01P11/00 , C01P2002/32 , C01P2002/52 , C01P2004/61 , C01P2006/12 , C01P2006/42 , Y10T156/1075
摘要: Materials and methods for the fabrication of high density, low temperature fired microwave ferrites for use in microwave power devices, transmission line elements, isolators, circulators, and phase shifters. Very fine (sub-micron) ferrite powders made by sol-gel methods are mixed with solvents and binders then tape-cast. Ferrite tapes in the unfired state are cut into complex shapes and may be provided with via holes. These ferrite sheets are fired discretely, or are laminated, cofired with printed metal pastes, or other active and passive ceramic tapes.
摘要翻译: 用于制造用于微波功率器件,传输线元件,隔离器,循环器和移相器的高密度,低温烧制微波铁氧体的材料和方法。 通过溶胶 - 凝胶法制备的非常细(亚微米)的铁氧体粉末与溶剂和粘合剂混合,然后进行胶带混合。 处于未烧结状态的铁氧体磁带被切割成复杂形状并且可以设置有通孔。 这些铁氧体片被离散地烧制,或被层压,与印刷的金属膏或其它有源和无源陶瓷带共烧。
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公开(公告)号:US4793429A
公开(公告)日:1988-12-27
申请号:US184308
申请日:1988-04-20
CPC分类号: G01G19/035 , G01G3/13
摘要: A system for weighing a vehicle in motion is disclosed. One or more piezoelectric weight sensors produce charge outputs in response to the weight of a vehicle passing over the sensors. A charge amplifier converts the sensor outputs to a voltage level. A peak voltage detector detects the peak voltage, which represents the sum of all sensor outputs. The peak voltage is then converted to a weight value using the thickness sensitivity of the piezoelectric material.
摘要翻译: 公开了一种用于对运动中的车辆进行称重的系统。 一个或多个压电重量传感器响应于通过传感器的车辆的重量而产生电荷输出。 电荷放大器将传感器输出转换为电压电平。 峰值电压检测器检测峰值电压,其表示所有传感器输出的和。 然后使用压电材料的厚度灵敏度将峰值电压转换成重量值。
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公开(公告)号:US5662879A
公开(公告)日:1997-09-02
申请号:US639642
申请日:1996-04-29
IPC分类号: C01G49/00
CPC分类号: C01G49/009 , C01P2002/72 , C01P2006/12 , C01P2006/60
摘要: A method for precipitating ferrite at room temperature which involves dissolving metal salts in deaerated water, using a base solution to precipitate metal hydroxides, adding an oxidizing agent that has a standard reduction potential greater than 1.229 V versus standard hydrogen electrode. The oxidizing agent further preferably has a standard reduction potential less than 1.8 V versus standard hydrogen electrode. The oxidizing agent is preferably one of hydrogen peroxide, ammonium peroxydisulfate, ozone, nitrous acid, NO, and N.sub.2 O. The base is preferably ammonium hydroxide.
摘要翻译: 一种在室温下析出铁素体的方法,其中包括将金属盐溶解在脱气水中,使用碱溶液沉淀金属氢氧化物,加入相对于标准氢电极具有大于1.229V的标准还原电位的氧化剂。 与标准氢电极相比,氧化剂进一步优选具有小于1.8V的标准还原电位。 氧化剂优选为过氧化氢,过二硫酸铵,臭氧,亚硝酸,NO和N 2 O中的一种。 碱优选为氢氧化铵。
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公开(公告)号:US5250388A
公开(公告)日:1993-10-05
申请号:US200331
申请日:1988-05-31
CPC分类号: H01L51/0508 , B29C59/16 , H01L51/002 , H01L51/0041 , H01L51/0512 , H01L51/0516 , H01L51/0541 , B29C2035/0872
摘要: Processes for producing stable, radiation hard, highly conductive polymers by a combination of chemical doping and ion irradiation and microelectronics are described. The highly conductive polymers formed by these processes may contain regions of different kinds of conductivity on the same polymer. Resist coatings and masks are used in conjunction with chemical doping and ion irradiation to create specific predetermined n and p conductivity patterns and insulation areas on polymeric films of selected thicknesses for electronic circuitry applications. The resulting circuitry, besides having a conductivity approaching that of metal, is extremely light in weight, flexible, and conductively stable. Several different configurations of microelectronic junction devices fabricated from single type or multiple type conductivity polymer films used either alone or with a polymer of opposite conductivity and a suitable metal or metals are disclosed.
摘要翻译: 描述了通过化学掺杂和离子照射和微电子的组合产生稳定的,辐射硬的,高导电的聚合物的方法。 通过这些方法形成的高导电性聚合物可以在同一聚合物上含有不同种类的导电性的区域。 抗蚀剂涂层和掩模与化学掺杂和离子辐射结合使用,以在电子电路应用的选定厚度的聚合物膜上产生特定的预定n和p导电图案和绝缘区域。 所得到的电路除了具有接近金属的导电性之外,重量轻,柔性和导电稳定性非常轻。 公开了由单一或多类型导电聚合物膜制造的微电子连接装置的几种不同结构,其单独使用或与具有相反导电性的聚合物和适用的金属或金属一起使用。
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公开(公告)号:US4857259A
公开(公告)日:1989-08-15
申请号:US863899
申请日:1986-05-16
摘要: A neutron dosimeter and a method for neutron dosimetry involving a two-layer structure, one layer being a fissile material, and the other being a material which changes its conductivity in accordance with a density of implanted ions. Neutrons striking the fissile material result in the production of energetic ions, a determinable number of which implant themselves in the second layer and so alter its conductivity. Measurements of the conductivity of the second layer provide information from which neutron dose may be inferred.
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公开(公告)号:US07718256B1
公开(公告)日:2010-05-18
申请号:US11397799
申请日:2006-04-05
申请人: Paul P. Frank , Kenneth C. Radford , Karl F. Schoch, Jr. , Eileen M. Wojtal , Philip A. Panackal
发明人: Paul P. Frank , Kenneth C. Radford , Karl F. Schoch, Jr. , Eileen M. Wojtal , Philip A. Panackal
IPC分类号: B32B7/12
CPC分类号: C09J163/00 , Y10T428/28 , Y10T428/2848
摘要: Thermal interface materials are essential for proper operation of electronic assemblies. They are used between surface mount components and printed wiring boards and between printed wiring boards and metal heat sinks. Their function is to bond the components together and allow good heat transfer between the parts being bonded. The approach disclosed in this invention is a fully-cured, flexible, filled elastomer that is coated on both sides with a partially cured, filled adhesive, which can be conveniently made by a low cost tape casting process. This unique approach offers a combination of good adhesion to both bonding surfaces, good heat transfer, compliance to accommodate mismatched coefficient of thermal expansion, rework capability, control of flow of the adhesive during cure, and easy handling of uncured material.
摘要翻译: 热界面材料对于电子组件的正确操作至关重要。 它们用于表面贴装元件和印刷电路板之间以及印刷电路板和金属散热片之间。 它们的功能是将组件粘合在一起,并允许粘合部件之间的良好的热传递。 在本发明中公开的方法是一种完全固化的,柔性的,填充的弹性体,其在两侧涂覆有部分固化的填充的粘合剂,其可以通过低成本的带式浇铸工艺方便地制成。 这种独特的方法提供了对粘合表面的良好粘附性,良好的热传递,适应性,适应不匹配的热膨胀系数,返工能力,粘合剂在固化过程中的流动控制以及容易处理未固化的材料的组合。
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公开(公告)号:US4764419A
公开(公告)日:1988-08-16
申请号:US809706
申请日:1985-12-17
IPC分类号: D06M13/02 , D06M13/503 , D06M13/51 , D06M15/227 , D06M15/70 , D06M101/00 , D06M101/16 , D06M101/30 , D06M101/34 , H01B1/12 , B32B27/00
CPC分类号: H01B1/125 , D06M15/227 , Y10S428/902 , Y10T428/2938 , Y10T428/2969 , Y10T442/2418
摘要: Disclosed is a process for forming a conductive coating of polyacetylene or substituted polyacetylene on fibers. The fibers are immersed into a solution of a catalyst for the polymerization of acetylene or substituted acetylene. The fibers are removed from the solution and acetylene or substituted acetylene gas is permitted to permeate the fibers, polymerizing to form a polyacetylene coating on the fibers. The coated fibers are then doped to make the polyacetylene coating conductive. Also disclosed are conductive polyacetylene coated fibers and a laminate containing conductive polyacetylene coated fibers.
摘要翻译: 公开了一种在纤维上形成聚乙炔或取代聚乙炔的导电涂层的方法。 将纤维浸入用于乙炔或取代乙炔聚合的催化剂的溶液中。 从溶液中除去纤维,允许乙炔或取代的乙炔气体渗透纤维,聚合以在纤维上形成聚乙炔涂层。 然后将涂覆的纤维掺杂以使聚乙炔涂层导电。 还公开了导电聚乙炔涂覆的纤维和包含导电聚乙炔涂覆的纤维的层压体。
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