CAPACITOR HAVING HIGH TEMPERATURE STABILITY, HIGH DIELECTRIC CONSTANT, LOW DIELECTRIC LOSS, AND LOW LEAKAGE CURRENT
    2.
    发明申请
    CAPACITOR HAVING HIGH TEMPERATURE STABILITY, HIGH DIELECTRIC CONSTANT, LOW DIELECTRIC LOSS, AND LOW LEAKAGE CURRENT 审中-公开
    具有高温稳定性,高介电常数,低介电损耗和低漏电流的电容器

    公开(公告)号:US20110228442A1

    公开(公告)日:2011-09-22

    申请号:US13049423

    申请日:2011-03-16

    IPC分类号: H01G4/06

    CPC分类号: H01G4/18 H01G4/30 H01G4/32

    摘要: Examples of the present invention include high electric energy density polymer film capacitors with high dielectric constant, low dielectric dissipation tangent, and low leakage current in a broad temperature range. More particularly, examples include a polymer film capacitor in which the dielectric layer comprise a copolymer of a first monomer (such as tetrafluoroethylene) and a second polar monomer. The second monomer component may be selected from vinylidene fluoride, trifluoroethylene or their mixtures, and optionally other monomers may be included to adjust the mechanical performance. The capacitors can be made by winding metallized films, plain films with metal foils, or hybrid construction where the films comprise the new compositions. The capacitors can be used in DC bus capacitors and energy storage capacitors in pulsed power systems.

    摘要翻译: 本发明的实例包括在宽温度范围内具有高介电常数,低介电损耗切线和低漏电流的高电能密度聚合物膜电容器。 更具体地,实例包括其中介电层包含第一单体(例如四氟乙烯)和第二极性单体的共聚物的聚合物膜电容器。 第二单体组分可以选自偏二氟乙烯,三氟乙烯或其混合物,并且任选地可以包括其它单体以调节机械性能。 电容器可以通过卷绕金属化薄膜,带有金属箔的普通薄膜或其中薄膜包含新组合物的混合结构来制造。 电容器可用于脉冲电源系统中的直流总线电容器和储能电容器。

    MICRO-STEERABLE CATHETER
    3.
    发明申请

    公开(公告)号:US20120239032A1

    公开(公告)日:2012-09-20

    申请号:US13482901

    申请日:2012-05-29

    IPC分类号: A61B18/18

    摘要: Micro-streerable catheters for use in delivering therapeutic treatment in the body, such as ablation and cauterization, and which exhibit precise movement are disclosed. Embodiments include electrical micro-catheters that comprise of electroactive polymers. A preferred embodiment includes a programmable catheter.

    摘要翻译: 公开了用于在身体中进行治疗治疗的微步行导管,例如消融和烧灼,并且显示出精确的运动。 实施方案包括包含电活性聚合物的电微导管。 优选实施例包括可编程导管。

    POLYMER BLENDS ELECTROSTRICTIVE TERPOLYMER WITH OTHER POLYMERS
    4.
    发明申请
    POLYMER BLENDS ELECTROSTRICTIVE TERPOLYMER WITH OTHER POLYMERS 审中-公开
    聚合物与其他聚合物混合的电致变色剂

    公开(公告)号:US20120178880A1

    公开(公告)日:2012-07-12

    申请号:US13384196

    申请日:2010-07-15

    IPC分类号: C08L27/16 B29C39/08 B29C47/06

    摘要: Polymer blends having improved electromechanical responses and mechanical properties for use in electromechanical application are disclosed. In particular, polymer blend including at least one electrostrictive terpolymer, e.g., poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) or a derivative thereof, and at least one fluoropolymer, e.g., PVDF or derivative thereof such as PVD-TrFE are disclosed. The polymer blends advantageously have a transverse strain, i.e., a strain perpendicular to the applied electric field direction, that is about 1.5% or higher (as measured at 100 MV/m) while also having an elastic modulus of no less than about 400 MPa (as measured at 30° C. and 1 Hz by dynamic mechanical analyzer).

    摘要翻译: 公开了具有改进的机电响应和用于机电应用的机械性能的聚合物共混物。 特别地,包括至少一种电致伸缩三元共聚物(例如聚(偏二氟乙烯 - 三氟乙烯 - 氯氟乙烯))(P(VDF-TrFE-CFE))或其衍生物的聚合物共混物和至少一种含氟聚合物,例如PVDF或其衍生物 例如PVD-TrFE。 聚合物共混物有利地具有横向应变,即垂直于所施加的电场方向的应变,其为约1.5%或更高(以100MV / m 2测量),同时具有不小于约400MPa的弹性模量 (通过动态机械分析仪在30℃和1Hz下测量)。

    ELECTROMECHANICAL POLYMER ACTUATORS
    5.
    发明申请
    ELECTROMECHANICAL POLYMER ACTUATORS 审中-公开
    电动聚合物致动器

    公开(公告)号:US20110038625A1

    公开(公告)日:2011-02-17

    申请号:US12856035

    申请日:2010-08-13

    IPC分类号: G03B13/34 G02B7/02

    摘要: An adaptive lens comprises an actuator and a lens, the lens being mechanically coupled to the actuator so that energization of the actuator adjusts a focal point of the lens. The actuator may comprise a multilayer stack of electromechanical polymer (EMP) layers, having electrodes configured to apply an electric field across each EMP layer. The actuator may be operable to move and/or deform a lens, so as to adjust the focus properties of the lens. In some examples, the actuator has an annular shape, supporting a lens within the inner radius of the annulus. The lens position may be adjusted in an axial direction. In other examples, the actuator may be mechanically coupled a surface of a deformable lens, either directly or through another element of a lens structure. A strain applied to the lens modifies a curved surface of the lens, hence modifying the focal length of the lens.

    摘要翻译: 自适应透镜包括致动器和透镜,透镜机械地联接到致动器,使得致动器的通电调节透镜的焦点。 致动器可以包括机电聚合物(EMP)层的多层叠层,其具有被配置为在每个EMP层上施加电场的电极。 致动器可操作以使透镜移动和/或变形,以便调节透镜的聚焦特性。 在一些示例中,致动器具有环形形状,在透镜的内半径内支撑透镜。 透镜位置可以沿轴向调节。 在其他示例中,致动器可以直接或通过透镜结构的另一元件机械耦合在可变形透镜的表面上。 施加到透镜的应变修改透镜的曲面,从而改变透镜的焦距。

    HIGH ELECTRIC ENERGY DENSITY POLYMERIC COMPOSITIONS, METHODS OF THE MANUFACTURE THEREFOR, AND ARTICLES COMPRISING THE SAME
    6.
    发明申请
    HIGH ELECTRIC ENERGY DENSITY POLYMERIC COMPOSITIONS, METHODS OF THE MANUFACTURE THEREFOR, AND ARTICLES COMPRISING THE SAME 审中-公开
    高电能密度聚合物组合物及其制造方法及其包含的物品

    公开(公告)号:US20100067172A1

    公开(公告)日:2010-03-18

    申请号:US12403596

    申请日:2009-03-13

    IPC分类号: H01G4/08

    摘要: Examples of the present invention relate generally to high electric energy density polymer film capacitors with high charge-discharge efficiency and fast discharge speed. For example, a high energy density polymer capacitor may be fabricated using a polymer blend comprising one or more high dielectric constant PVDF-based polymers (including homopolymers, copolymers and/or terpolymers) and one or more other polymer with low dielectric loss and high volume resistivity compared to the one or more PVDF-based polymers. An example film capacitor may comprise a high temperature fluoropolymer with dielectric loss lower than 0.2% and good film manufacturability. Polymer films can be stretched and orientated at least in one direction to make thinner films with improved performance. Film capacitors can be made by winding metallized films, plain films with metal foils, or using a hybrid construction where the dielectric films comprise the new compositions. Capacitors can also have a multilayer construction where the films are metallized.

    摘要翻译: 本发明的实例一般涉及具有高充电 - 放电效率和快速放电速度的高电能密度聚合物膜电容器。 例如,可以使用包含一种或多种高介电常数PVDF基聚合物(包括均聚物,共聚物和/或三元共聚物)和一种或多种具有低介电损耗和高体积的其它聚合物的聚合物共混物来制造高能量密度聚合物电容器 电阻率与一种或多种PVDF基聚合物相比。 示例性薄膜电容器可以包括介电损耗低于0.2%的高温含氟聚合物和良好的薄膜可制造性。 聚合物膜可以至少在一个方向上被拉伸和取向以制备具有改进性能的较薄膜。 薄膜电容器可以通过卷绕金属化膜,带有金属箔的平板膜或者使用其中电介质膜包含新组合物的混合结构来制造。 电容器也可以具有多层结构,其中膜被金属化。

    Micro-steerable catheter
    7.
    发明申请
    Micro-steerable catheter 审中-公开
    微导管

    公开(公告)号:US20090024086A1

    公开(公告)日:2009-01-22

    申请号:US11898475

    申请日:2007-09-12

    IPC分类号: A61M25/092 A61M25/08

    摘要: Micro-streerable catheters for use in delivering therapeutic treatment in the body, such as ablation and cauterization, and which exhibit precise movement are disclosed. Embodiments include electrical micro-catheters that comprise of electroactive polymers. A preferred embodiment includes a programmable catheter.

    摘要翻译: 公开了用于在身体中进行治疗治疗的微步行导管,例如消融和烧灼,并且显示出精确的运动。 实施方案包括包含电活性聚合物的电微导管。 优选实施例包括可编程导管。

    High Electric Energy Density Polymer Capacitors With Fast Discharge Speed and High Efficiency Based On Unique Poly (Vinylidene Fluoride) Copolymers and Terpolymers as Dielectric Materials
    8.
    发明申请
    High Electric Energy Density Polymer Capacitors With Fast Discharge Speed and High Efficiency Based On Unique Poly (Vinylidene Fluoride) Copolymers and Terpolymers as Dielectric Materials 审中-公开
    基于独特聚(亚乙烯基氟化物)共聚物和三元共聚物作为介电材料的高电能密度聚合物电容器具有快速放电速度和高效率

    公开(公告)号:US20090030152A1

    公开(公告)日:2009-01-29

    申请号:US12087221

    申请日:2006-12-18

    IPC分类号: C08L27/16

    CPC分类号: H01G4/186 Y02T10/7022

    摘要: An improved charge or energy storage device having a dielectric charge or energy storage layer including: (i) a copolymer or terpolymer selected from P(VDF-CTFE), P(VDF-CFE), P(VDF-HFP), P(VDF-CDFE), P(VDF-TrFE-CTFE), P(VDF-TrFE-CFE), P(VDF-TrFE-HFP), P(VDF-TrFE-CDFE), P(VDF-TFE-CTFE), P(VDF-TFE-CFE), P(VDF-TFE-HFP), and P(VDF-TFE-CDFE); or (ii) a polymer blend of PVDF homopolymer with a copolymer selected from P(VDF-CTFE); P(VDF-CFE); P(VDF-HFP); and P(VDF-CDFE); or (iii) a polymer blend of a PVDF homopolymer with a terpolymer selected from P(VDF-TrFE-CTFE); P(VDF-TrFE-CFE); P(VDF-TrFE-HFP); P(VDF-TrFE-CDFE); P(VDF-TFE-CTFE); P(VDF-TFE-CFE); P(VDF-TFE-HFP); and P(VDF-TFE-CDFE); or (iv) a polymer blend of copolymer selected from P(VDF-CTFE); P(VDF-CFE); P(VDF-HFP); and P(VDF-CDFE); with a terpolymer selected from P(VDF-TrFE-CTFE); P(VDF-TrFE-CFE); P(VDF-TrFE-HFP); P(VDF-TrFE-CDFE); P(VDF-TFE-CTFE); P(VDF-TFE-CFE); P(VDF-TFE-HFP); and P(VDF-TFE-CDFE).

    摘要翻译: 一种具有介电电荷或能量储存层的改进的电荷或能量存储装置,包括:(i)选自P(VDF-CTFE),P(VDF-CFE),P(VDF-HFP),P(VDF) -CDFE),P(VDF-TrFE-CTFE),P(VDF-TrFE-CFE),P(VDF-TrFE-HFP),P(VDF-TrFE-CDFE),P(VDF-TFE-CTFE) (VDF-TFE-CFE),P(VDF-TFE-HFP)和P(VDF-TFE-CDFE); 或(ii)PVDF均聚物与选自P(VDF-CTFE)的共聚物的聚合物共混物; P(VDF-CFE); P(VDF-HFP); 和P(VDF-CDFE); 或(iii)PVDF均聚物与选自P(VDF-TrFE-CTFE)的三元共聚物的聚合物共混物; P(VDF-TrFE-CFE); P(VDF-TrFE-HFP); P(VDF-TrFE-CDFE); P(VDF-TFE-CTFE); P(VDF-TFE-CFE); P(VDF-TFE-HFP); 和P(VDF-TFE-CDFE); 或(iv)选自P(VDF-CTFE)的共聚物的共聚物; P(VDF-CFE); P(VDF-HFP); 和P(VDF-CDFE); 具有选自P(VDF-TrFE-CTFE)的三元共聚物; P(VDF-TrFE-CFE); P(VDF-TrFE-HFP); P(VDF-TrFE-CDFE); P(VDF-TFE-CTFE); P(VDF-TFE-CFE); P(VDF-TFE-HFP); 和P(VDF-TFE-CDFE)。

    Ferroelectric relaxer polymers
    9.
    发明授权
    Ferroelectric relaxer polymers 有权
    铁电松弛聚合物

    公开(公告)号:US06423412B1

    公开(公告)日:2002-07-23

    申请号:US09195061

    申请日:1998-11-18

    IPC分类号: B32B2730

    摘要: The invention is embodied in an electrical device which includes at least a layer of a ferroelectric polyvinylidine fluoride polymer that has been processed to exhibit an electrostrictive strain of 4% or more when an electric field gradient of 50 megavolts per meter or greater is applied thereacross. The processing of the polymer preferably involves subjecting it to either electron beam radiation or gamma radiation. The polyvinylidine flouride polymer is selected from the group of: polyvinylidine fluoride, polyvinylidine fluoride-trifluoroethylene P(VDF-TrFE), polyvinylidine fluoride tetrafluoroethylene P(VDF-TFE), polyvinylidine fluoride trifluoroethylene-hexafluoropropylene P(VDF-TFE-HFE) and polyvinylidine fluoride-hexafluoropropylene P(VDF-HFE).

    摘要翻译: 本发明体现在一种电气装置中,该电气装置至少包括一层铁电聚偏氟乙烯聚合物,当层间施加50兆伏特/米或更大的电场梯度时,其已经被处理以显示出4%以上的电致伸缩应变。 聚合物的加工优选包括对其进行电子束辐射或γ辐射。 聚偏二氟乙烯聚合物选自:聚偏氟乙烯,聚偏氟乙烯 - 三氟乙烯P(VDF-TrFE),聚偏氟乙烯四氟乙烯P(VDF-TFE),聚偏二氟乙烯三氟乙烯 - 六氟丙烯P(VDF-TFE-HFE)和聚偏二氟乙烯 氟化六氟丙烯P(VDF-HFE)。

    Piezoelectric type liquid droplet ejecting device which compensates for
residual pressure fluctuations
    10.
    发明授权
    Piezoelectric type liquid droplet ejecting device which compensates for residual pressure fluctuations 失效
    用于补偿残余压力波动的压电式液滴喷射装置

    公开(公告)号:US5757392A

    公开(公告)日:1998-05-26

    申请号:US599263

    申请日:1996-02-09

    申请人: Qiming Zhang

    发明人: Qiming Zhang

    IPC分类号: B41J2/045 B41J29/38

    摘要: A piezoelectric-type liquid droplet ejecting device including a piezoelectric element. A predetermined voltage pulse is applied to the piezoelectric element, whereupon residual pressure fluctuations are generated in the pressure chamber of the liquid droplet ejecting device. The piezoelectric element or a separate piezoelectric element generates an electric signal corresponding to the residual pressure fluctuations. A detection circuit receives the electric signal and supplies a detection signal corresponding to the electric signal to a calculation circuit for calculating a voltage pulse. The calculation circuit supplies the voltage pulse to a drive circuit, which applies it to the piezoelectric element. The voltage pulse deforms the piezoelectric element upon application thereto in a manner sufficient to compensate for residual pressure fluctuation in the pressure chamber.

    摘要翻译: 一种包括压电元件的压电型液滴喷射装置。 对压电元件施加预定的电压脉冲,从而在液滴喷射装置的压力室中产生残余压力波动。 压电元件或单独的压电元件产生对应于残余压力波动的电信号。 检测电路接收电信号并将与电信号相对应的检测信号提供给用于计算电压脉冲的计算电路。 计算电路将电压脉冲提供给将其施加到压电元件的驱动电路。 电压脉冲在施加时使压电元件以足以补偿压力室中的残余压力波动的方式变形。