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1. 发明授权

US5106538A Conductive polymer composition 失效
标题翻译：导电聚合物组成
公开(公告)号：US5106538A
公开(公告)日：1992-04-21
申请号：US459722
申请日：1990-01-11
申请人： Pradeep Barma , Chi-Ming Chan , Manoochehr Mohebban , Nachum Rosenzweig , Eugen L. Kurjatko
发明人： Pradeep Barma , Chi-Ming Chan , Manoochehr Mohebban , Nachum Rosenzweig , Eugen L. Kurjatko
IPC分类号： C08K3/00 , C08K9/10 , H01B1/20 , H01B1/22 , H01B1/24 , H01C7/02
CPC分类号： H01B1/22 , C08K3/0033 , C08K9/10 , H01B1/20 , H01B1/24 , H01C7/027
摘要： A composition which comprises a matrix polymer and, distributed therein, a particulate conductive filler. At least some of the filler particles are composed of a conductive polymer composition and/or the matrix comprises a sintered polymer. The matrix polymer and the filler particles and the method of distributing the particles are such that the particles maintain their identity in the matrix. For example, the particles are preferably highly cross-linked so that they have a hot modulus of at least 250 psi if the composition is prepared by melt extrusion or another process involving a high degree of shear; or a low-shear process such as sintering can be used. Preferably the matrix polymer is capable of coating the filler particles; for example, the matrix polymer and the filler polymer may be chemically similar. The invention is particularly useful for preparing compositions which have high resistivities, e.g. 1000 ohm.cm or more, and which can be prepared with a high degree of reproduceability. The compositions can exhibit PTC, ZTC or NTC behavior, depending on the nature of the conductive filler, and their resistivity is dependent on the electric field. The composition are particularly useful as resistive materials in sheet heaters and as stress-grading materials for high voltage apparatus.
摘要翻译： PCT No.PCT / US88 / 02484第 371 1990年1月11日第 102（e）日期1990年1月11日PCT提交1988年7月21日PCT公布。公开号WO89 / 00755 日本1989年1月26日。一种组合物，其包含基质聚合物并分布在其中的颗粒状导电填料。至少一些填料颗粒由导电聚合物组合物和/或基质包含烧结聚合物组成。基质聚合物和填料颗粒以及分散颗粒的方法使得颗粒在基质中保持它们的相同性。例如，颗粒优选是高度交联的，使得如果组合物通过熔融挤出或涉及高剪切程度的另一种方法制备，它们的热模量至少为250psi; 或者可以使用诸如烧结的低剪切工艺。优选地，基质聚合物能够涂覆填料颗粒; 例如，基质聚合物和填料聚合物可以化学相似。本发明特别可用于制备具有高电阻率的组合物，例如， 1000欧姆·厘米或更高，并且可以以高度的可再现性制备。组合物可以表现出PTC，ZTC或NTC的行为，这取决于导电填料的性质，其电阻率取决于电场。该组合物特别用作片状加热器中的电阻材料以及用作高压装置的应力分级材料。

2. 发明授权

US5106540A Conductive polymer composition 失效
标题翻译：导电聚合物组合物
公开(公告)号：US5106540A
公开(公告)日：1992-04-21
申请号：US75929
申请日：1987-07-21
申请人： Pradeep Barma , Chi-Ming Chan , Manoochehr Mohebban , Nachum Rosenzweig
发明人： Pradeep Barma , Chi-Ming Chan , Manoochehr Mohebban , Nachum Rosenzweig
IPC分类号： C08L23/06 , C08K3/02 , C08K3/04 , C08L1/00 , C08L23/00 , C08L27/00 , C08L77/00 , C08L101/00 , H01B1/24 , H01C7/02
CPC分类号： H01B1/24 , H01C7/027
摘要： A composition which comprises a matrix polymer and, distributed therein, a particulate conductive filler. At least some of the filler particles are composed of a conductive polymer composition and/or the matrix comprises a sintered polymer. The matrix polymer and the filler particles and the method of distributing the particles are such that the particles maintain their identity in the matrix. For example, the particles are preferably highly cross-linked so that they have a hot modulus of at least 250 psi if the composition is prepared by melt extrusion or another process involving a high degree of shear; or a low-shear process such as sintering can be used. Preferably the matrix polymer is capable of coating the filler particles; for example, the matrix polymer and the filler polymer may be chemically similar. The invention is particularly useful for preparing compositions which have high resistivities, eg. 1000 ohm.cm or more, and which can be prepared with a high degree of reproduceability. The compositions can exhibit PTC, ZTC or NTC behavior, depending on the nature of the conductive filler, and their resistivity is dependent on the electric field. The compositions are particularly useful as resistive materials in sheet heaters and as stress-grading materials for high voltage apparatus.
摘要翻译：一种组合物，其包含基质聚合物并在其中分布有颗粒状导电填料。至少一些填料颗粒由导电聚合物组合物和/或基质包含烧结聚合物组成。基质聚合物和填料颗粒以及分散颗粒的方法使得颗粒在基质中保持它们的相同性。例如，颗粒优选是高度交联的，使得如果组合物通过熔融挤出或涉及高剪切程度的另一种方法制备，它们的热模量至少为250psi; 或者可以使用诸如烧结的低剪切工艺。优选地，基质聚合物能够涂覆填料颗粒; 例如，基质聚合物和填料聚合物可以化学相似。本发明特别可用于制备具有高电阻率的组合物，例如， 1000欧姆·厘米或更高，并且可以以高度的可再现性制备。组合物可以表现出PTC，ZTC或NTC的行为，这取决于导电填料的性质，其电阻率取决于电场。该组合物特别可用作片状加热器中的电阻材料和用作高压设备的应力分级材料。

3. 发明授权

US4801785A Electrical devices 失效
标题翻译：电气设备
公开(公告)号：US4801785A
公开(公告)日：1989-01-31
申请号：US818844
申请日：1986-01-14
申请人： Chi-Ming Chan , Pradeep Barma , David Chazan , David Liu
发明人： Chi-Ming Chan , Pradeep Barma , David Chazan , David Liu
IPC分类号： H05B3/14 , H05B3/08
CPC分类号： H05B3/146
摘要： Improvements to electrical devices comprising conductive polymer compositions are described. The device, preferably a heater, comprises two electrodes, preferably planar electrodes and a conductive polymer composition, which preferably exhibits PTC behavior, and which is preferably sandwiched between the electrodes. At least one of the electrodes comprises a metal with a thin layer of high resistivity material attached thereto, e.g. anodized aluminum, so that the layer separates the electrode and the conductive polymer composition. This raises the room temperature resistance of the device and thus reduces the in-rush current.
摘要翻译：描述了包括导电聚合物组合物的电气装置的改进。优选地，该装置包括两个电极，优选平面电极和导电聚合物组合物，其优选地表现出PTC行为，并且其优选地夹在电极之间。电极中的至少一个包括具有附着到其上的具有高电阻率材料的薄层的金属。阳极氧化铝，使得该层分离电极和导电聚合物组合物。这提高了器件的室温电阻，从而降低了浪涌电流。

4. 发明授权

US4866452A Heated dish antennas 失效
标题翻译：加热碟形天线
公开(公告)号：US4866452A
公开(公告)日：1989-09-12
申请号：US302103
申请日：1989-01-24
申请人： Pradeep Barma , Chi-Ming Chan
发明人： Pradeep Barma , Chi-Ming Chan
IPC分类号： H01Q1/02
CPC分类号： H01Q1/02
摘要： A dish antenna for receiving or transmitting signals, e.g. via a satellite, is heated by means of radiant heat from an electrical heater located behind the antenna and spaced apart therefrom. This keeps the antenna free from ice and snow and minimizes distortion. The heater is preferably a self-regulating sheet heater comprising a PTC conductive polymer.
摘要翻译：用于接收或发送信号的碟形天线，例如通过卫星，通过位于天线后面的电加热器的辐射热加热并与之隔开。这样可以使天线不受冰雪的影响，并使失真最小化。加热器优选是包括PTC导电聚合物的自调节片加热器。

5. 发明授权

US07803289B2 Overvoltage protection materials and process for preparing same 有权
标题翻译：过电压保护材料及其制备方法
公开(公告)号：US07803289B2
公开(公告)日：2010-09-28
申请号：US11371120
申请日：2006-03-08
申请人： Chi-Ming Chan , Kai-Mo Ng , Catherine Yuen Chien Wong , Ying Kit Cheung
发明人： Chi-Ming Chan , Kai-Mo Ng , Catherine Yuen Chien Wong , Ying Kit Cheung
IPC分类号： H01C7/10 , H01C7/12 , H01C7/13
CPC分类号： H01B1/22 , H05K1/0257 , H05K1/0259 , H05K1/167 , H05K2201/0738 , Y10T428/257 , Y10T428/31663
摘要： The invention provides a process for preparing an overvoltage protection material comprising: (i) preparing a mixture comprising a polymer binder precursor and a conductive material; and (ii) heating the mixture to cause reaction of the polymer binder precursor and generate a polymer matrix having conductive material dispersed therein, wherein the polymer binder precursor is chosen such that substantially no solvent is generated during the reaction.
摘要翻译：本发明提供一种制备过电压保护材料的方法，包括：（i）制备包含聚合物粘合剂前体和导电材料的混合物; 和（ii）加热混合物以引起聚合物粘合剂前体的反应并产生其中分散有导电材料的聚合物基质，其中选择聚合物粘合剂前体使得在反应期间基本上不产生溶剂。

6. 发明授权

US5089801A Self-regulating PTC devices having shaped laminar conductive terminals 失效
标题翻译：具有形状的层状导电端子的自适应PTC器件
公开(公告)号：US5089801A
公开(公告)日：1992-02-18
申请号：US590114
申请日：1990-09-28
申请人： Chi-Ming Chan , Shou-Mean Fang
发明人： Chi-Ming Chan , Shou-Mean Fang
IPC分类号： H01C7/02 , H01C1/14
CPC分类号： H01C1/1406 , Y10T29/49082 , Y10T29/49085
摘要： An electrical device in which a conductive terminal is physically and electrically attached to a laminar resistive element by means of a laminar conductive element. The three layers are positioned in such a way that the periphery of the conductive element does not extend beyond the first periphery and at least a part of the periphery of the conductive terminal lies within the first periphery. In a preferred embodiment the conductive element is solder and the periphery of the conductive terminal is shaped in such a way that no excess solder bridges from one laminar surface of the resistive element to the other. Devices of the invention are useful as circuit protection devices.
摘要翻译：一种电气装置，其中导电端子通过层状导电元件物理和电连接到层状电阻元件。这三层被定位成使得导电元件的周边不延伸超出第一周边，并且导电端子的周边的至少一部分位于第一周边内。在优选实施例中，导电元件是焊料，并且导电端子的周边被成形为使得没有多余的焊料从电阻元件的一个层流表面彼此桥接。本发明的装置可用作电路保护装置。

7. 发明授权

US07355504B2 Electrical devices 有权
标题翻译：电气设备
公开(公告)号：US07355504B2
公开(公告)日：2008-04-08
申请号：US10721478
申请日：2003-11-25
申请人： Gregory A. Graves , Michael Zhang , Daniel Chandler , Chi-Ming Chan , Shou-Mean Fang , Dennis Siden , Mark Thompson
发明人： Gregory A. Graves , Michael Zhang , Daniel Chandler , Chi-Ming Chan , Shou-Mean Fang , Dennis Siden , Mark Thompson
IPC分类号： H01C7/10
CPC分类号： H05K1/184 , H01C1/14 , H01C1/1406 , H01C7/027 , H01C17/06586 , H05K1/182 , H05K3/0097 , H05K3/3442 , H05K3/403 , H05K2201/09181 , H05K2201/09954 , H05K2201/10022 , H05K2201/10469 , H05K2201/10643 , H05K2201/10666 , Y02P70/613 , Y10T29/49085 , Y10T29/49101 , Y10T29/49103
摘要： An electrical device which comprises first and second laminar electrodes and a laminar PTC resistive element sandwiched between them, the device comprising (a) a main portion which comprises a main part of the first electrode, a main part of the second electrode, and a main part of the resistive element; and (b) a first connection leg which extends away from the main portion and which comprises a first leg part of the first electrode which is integral with the main part of the first electrode, and a first leg part of the resistive element which is integral with the main part of the resistive element. Such devices can be secured to circuit boards in a variety of ways, and to elastically deformed terminals. Preferably preferred devices contain two laminar electrodes, with a PTC element between them, and a cross-conductor which passes through the thickness of the device and contacts one only of the two electrodes. The cross-conductor permits connection to both electrodes from the same side of the device, and also makes it possible to carry out the steps for preparing such devices on an assembly which corresponds to a number of individual devices, with division of the assembly as the final step.
摘要翻译：一种电气装置，包括第一和第二层状电极和夹在它们之间的层状PTC电阻元件，所述装置包括（a）主要部分，其包括第一电极的主要部分，第二电极的主要部分和主体部分电阻元件的一部分; 和（b）第一连接腿，其远离主要部分延伸并且包括与第一电极的主要部分成一体的第一电极的第一腿部和电阻元件的第一腿部，与电阻元件的主要部分。这样的装置可以以各种方式固定到电路板，并且可弹性变形的端子。优选地，优选的装置包含两个层状电极，其间具有PTC元件，并且穿过该器件的厚度并且仅与两个电极中的一个接触的交叉导体。交叉导体允许从设备的同一侧连接到两个电极，并且还使得可以在对应于多个单独设备的组件上执行用于准备这样的设备的步骤，将组件划分为最后一步。

8. 发明申请

US20070148440A1 Overvoltage protection materials and process for preparing same 审中-公开
标题翻译：过电压保护材料及其制备方法
公开(公告)号：US20070148440A1
公开(公告)日：2007-06-28
申请号：US11624632
申请日：2007-01-18
申请人： Chi-Ming Chan , Kai-Mo Ng , Catherine Wong , Ying Cheung
发明人： Chi-Ming Chan , Kai-Mo Ng , Catherine Wong , Ying Cheung
IPC分类号： B32B5/16
CPC分类号： H01B1/22 , H05K1/0257 , H05K1/0259 , H05K1/167 , H05K2201/0738 , Y10T428/257 , Y10T428/31663
摘要： The invention provides a process for preparing an overvoltage protection material comprising: (i) preparing a mixture comprising a polymer binder precursor and a conductive material; and (ii) heating the mixture to cause reaction of the polymer binder precursor and generate a polymer matrix having conductive material dispersed therein, wherein the polymer binder precursor is chosen such that substantially no solvent is generated during the reaction.
摘要翻译：本发明提供一种制备过电压保护材料的方法，包括：（i）制备包含聚合物粘合剂前体和导电材料的混合物; 和（ii）加热混合物以引起聚合物粘合剂前体的反应并产生其中分散有导电材料的聚合物基质，其中选择聚合物粘合剂前体使得在反应期间基本上不产生溶剂。

9. 发明授权

US5122775A Connection device for resistive elements 失效
标题翻译：电阻元件的连接装置
公开(公告)号：US5122775A
公开(公告)日：1992-06-16
申请号：US479801
申请日：1990-02-14
申请人： Shou-Mean Fang , Vijay K. Dhingra , Chi-Ming Chan , Daniel Chandler
发明人： Shou-Mean Fang , Vijay K. Dhingra , Chi-Ming Chan , Daniel Chandler
IPC分类号： H01C7/02 , H01C1/146 , H01C13/02
CPC分类号： H01C1/146 , Y10T29/49085
摘要： An electrical device in which a first connection element is in electrical contact with a resistive element. The first connection element defines a cavity into which, when the cavity is empty, a second connection element can be inserted. The second connection element, which may be connected to a source of electrical power, is partially within the cavity, makes physical and electrical contact with the first connection element, and protrudes from the cavity. Such devices can be made in a continuous process by a method of the invention. They are particularly suitable for insertion into a circuit board.
摘要翻译：一种电气装置，其中第一连接元件与电阻元件电接触。第一连接元件限定空腔，当空腔为空时，可插入第二连接元件。可以连接到电源的第二连接元件部分地在空腔内，使得与第一连接元件物理和电接触并且从空腔突出。这样的装置可以通过本发明的方法在连续过程中制造。它们特别适用于插入电路板。

10. 发明授权

US07763185B2 Overvoltage protection materials and process for preparing same 有权
公开(公告)号：US07763185B2
公开(公告)日：2010-07-27
申请号：US11624640
申请日：2007-01-18
申请人： Chi-Ming Chan , Kai-Mo Ng , Catherine Yuen-Chien Wong , Ying Kit Cheung
发明人： Chi-Ming Chan , Kai-Mo Ng , Catherine Yuen-Chien Wong , Ying Kit Cheung
IPC分类号： H01C7/00 , H01C7/10 , H01C7/13
CPC分类号： H01B1/22 , H05K1/0257 , H05K1/0259 , H05K1/167 , H05K2201/0738 , Y10T428/257 , Y10T428/31663
摘要： The invention provides a process for preparing an overvoltage protection material comprising: (i) preparing a mixture comprising a polymer binder precursor and a conductive material; and (ii) heating the mixture to cause reaction of the polymer binder precursor and generate a polymer matrix having conductive material dispersed therein, wherein the polymer binder precursor is chosen such that substantially no solvent is generated during the reaction.

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