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9 条记录 (耗时 0.038 秒)

    Crosslinked vinyl polymer particles and electrographic elements and liquid developers containing such particles
    1.
    发明授权
    Crosslinked vinyl polymer particles and electrographic elements and liquid developers containing such particles 失效

    公开(公告)号：US4708923A

    公开(公告)日：1987-11-24

    申请号：US858464

    申请日：1986-04-30

    申请人： Drewfus Y. Myers, Jr. ,  Peter S. Alexandrovich ,  Glenn T. Pearce ,  Domenic Santilli ,  Chandrasekha Sreekumar ,  Martin A. Berwick ,  Donald A. Upson ,  William K. Goebel

    发明人： Drewfus Y. Myers, Jr. ,  Peter S. Alexandrovich ,  Glenn T. Pearce ,  Domenic Santilli ,  Chandrasekha Sreekumar ,  Martin A. Berwick ,  Donald A. Upson ,  William K. Goebel

    IPC分类号： C08F2/22 ,  G03G5/14 ,  G03G5/147 ,  G03G8/00 ,  G03G9/13 ,  G03G9/18

    CPC分类号： C08F2/22 ,  G03G5/142 ,  G03G5/14791 ,  G03G8/00 ,  G03G9/131 ,  Y10T436/174614

    摘要： The invention provides new crosslinked vinyl polymer particles, new coating compositions containing such particles, new liquid electrographic developers containing such particles, new electrographic elements containing one or more layers comprising such particles, and new electrographic records containing toner images and/or layers comprising such particles.The polymeric particles of the invention are characterized in that each particle has an average diameter less than one micrometer and comprises a crosslinked vinyl addition copolymer obtainable by aqueous emulsion polymerization of a mixture of monomers wherein:1.5-15 percent by weight of the mixture of monomers comprises polyfunctional vinyl addition-polymerizable monomers in order to form crosslinking structural units in the copolymer;85-98.5 percent by weight of the mixture of monomers comprises monofunctional vinyl addition-polymerizable monomers selected such that:A. 0-98.5 percent by weight of the mixture of monomers comprises monofunctional monomers, the homopolymers of which would be insoluble in but swellable by an isoparaffinic hydrocarbon liquid;B. from 0 to less than 85 percent by weight of the mixture of monomers comprises monofunctional, monomers, the homopolymers of which would be soluble in the isoparaffinic hydrocarbon liquid; andC. 0-60 percent by weight of the mixture of monomers comprises monofunctional monomers, the homopolymers of which would be insoluble in and not swellable by the isoparrafinic hydrocarbon liquid;with the provisos that:I. if more than 0 percent by weight of the mixture of monomers comprises the monomers of part C., above, than more than 0 percent by weight of the mixture of monomers comprises the monomers of part B., above;II. if more than 9 percent by weight of the mixture of monomers comprises the monomers of part C., above, then less than 10 percent by weight of the mixture of monomers comprises the monomers of part A., above; andIII. all of the polyfunctional and monofunctional monomers and amounts thereof are selected such that the copolymer would be insoluble in the isoparaffinic hydrocarbon liquid but would be swellable by that liquid.

    Method for using hard magnetic carriers in an electrographic process
    3.
    发明授权
    Method for using hard magnetic carriers in an electrographic process 有权
    在电子照相过程中使用硬磁性载体的方法

    公开(公告)号：US06723481B2

    公开(公告)日：2004-04-20

    申请号：US09853410

    申请日：2001-05-11

    申请人： Patrick Lambert ,  Eric C. Stelter ,  William K. Goebel ,  Peter S. Alexandrovich

    发明人： Patrick Lambert ,  Eric C. Stelter ,  William K. Goebel ,  Peter S. Alexandrovich

    IPC分类号： G03G1309

    CPC分类号： G03G9/1139 ,  G03G9/107 ,  G03G9/1075

    摘要： Methods for development of an electrostatic image are disclosed that utilize developer compositions with hard magnetic carrier compositions which can provide improved development efficiencies and reduced amounts of image carrier pick-up. The methods utilize hard magnetic carrier particles that are modified to have specific levels of resistivity, such as, for example, of from about 1×105 ohm-cm to about 1×1010 ohm-cm, and a carrier charge-to-mass of greater than about 1.0 &mgr;C/g, which carriers can provide greater development speeds without unacceptable levels of image carrier pick-up. In embodiments, the hard magnetic materials are doped, i.e., bulk substituted, with multi-valent metals to adjust resistivity, while in other embodiments, the hard magnetic materials are coated with at least one multi-valent metal oxide.

    摘要翻译： 公开了用于开发静电图像的方法，其利用具有硬磁性载体组合物的显影剂组合物，其可以提供改善的显影效率和减少的载体拾取量。 该方法利用被修改为具有特定电阻率的硬磁性载体颗粒，例如约1×10 5欧姆 - 厘米至约1×10 10欧姆 - 厘米，以及载流子 - 质量大于约1.0μC/ g，哪些载体可以提供更大的显影速度，而没有不可接受的载体拾取水平。 在实施例中，硬磁性材料用多价金属掺杂，即大量取代以调节电阻率，而在其它实施例中，硬磁性材料被至少一种多价金属氧化物涂覆。

    Electrographic recording receiver
    5.
    发明授权
    Electrographic recording receiver 失效
    电记录接收机

    公开(公告)号：US4920356A

    公开(公告)日：1990-04-24

    申请号：US286190

    申请日：1988-12-19

    申请人： William K. Goebel ,  David M. Rakov

    发明人： William K. Goebel ,  David M. Rakov

    IPC分类号： G03G5/02

    CPC分类号： G03G5/02 ,  G03G5/0202 ,  Y10T428/24893

    摘要： Disclosed is an electrographic recording receiver for use in a process where styli in a writing head deposit electric charges on an electrographic receiver. The receiver comprises a substrate having a conductive layer on an insulating support, a dielectric layer having an image area on the conductive layer, conductive particles embedded in the image area of the dielectric layer in contact with the conductive layer and extending or protruding through the surface of the dielectric layer to provide an electrical path between a ground and the conductive layer through the conductive particles, and insulating particles embedded in and extending through the surface of the image area of the dielectric layer to a distance greater than the conductive particles to provide a substantially uniform distance between the styli and the dielectric layer. Also disclosed is a method of making such a receiver and a method of forming an electrostatic image on such a receiver.

    摘要翻译： 公开了一种电子记录接收器，用于在写入头中的笔针在电子照相接收器上沉积电荷的过程中。 接收器包括在绝缘支撑件上具有导电层的基板，在导电层上具有图像区域的电介质层，与介电层的与导电层接触的图像区域中的导电颗粒，并且延伸或突出穿过表面 以提供通过导电颗粒的接地和导电层之间的电路径，以及嵌入并延伸穿过介电层的图像区域的表面的绝缘颗粒到大于导电颗粒的距离，以提供 触针和介电层之间的距离基本上均匀。 还公开了制造这种接收机的方法和在这种接收机上形成静电图像的方法。

    Pre-coated, fused plastic particles as a protective overcoat for color photographic prints
    7.
    发明授权
    Pre-coated, fused plastic particles as a protective overcoat for color photographic prints 失效
    预涂层，熔融塑料颗粒作为彩色照相印刷品的保护罩

    公开(公告)号：US5853926A

    公开(公告)日：1998-12-29

    申请号：US898987

    申请日：1997-07-23

    申请人： Anne E. Bohan ,  Vito A. DePalma ,  William K. Goebel ,  Amy E. Jasek ,  Thomas H. Whitesides

    发明人： Anne E. Bohan ,  Vito A. DePalma ,  William K. Goebel ,  Amy E. Jasek ,  Thomas H. Whitesides

    IPC分类号： G03C1/74 ,  G03C1/76 ,  G03C11/08

    CPC分类号： G03C1/7614 ,  G03C11/08 ,  G03C1/74 ,  Y10S430/162

    摘要： The present invention is an imaged photographic element having a protective overcoat thereon. The protective overcoat is formed by providing a photographic element having at least one silver halide light-sensitive emulsion layer; and applying an aqueous coating comprising polymer particles having an average size of 0.1 to 50 microns at a weight percent of 5 to 50 percent, a soft polymer latex binder at a weight percent of 1 to 3 percent, over the at least one silver halide light-sensitive emulsion layer. The silver halide light sensitive emulsion layer is developed to provide an imaged photographic element. The hydrophobic polymer particles is fused to form a protective overcoat.

    摘要翻译： 本发明是在其上具有保护性外涂层的成像照相元件。 保护性外涂层通过提供具有至少一种卤化银感光乳剂层的照相元件形成; 并且以至少一种卤化银光线涂覆包含平均粒度为0.1-50微米的聚合物颗粒的水性涂料，其重量百分比为5-50％，重量百分比为1％至3％的软质聚合物胶乳粘合剂 敏感乳剂层。 显影卤化银感光乳剂层以提供成像的照相元件。 将疏水性聚合物颗粒熔合以形成保护性外涂层。

    Magnetic carrier particles
    8.
    发明授权
    Magnetic carrier particles 有权
    磁性载体颗粒

    公开(公告)号：US06228549B1

    公开(公告)日：2001-05-08

    申请号：US09572989

    申请日：2000-05-17

    申请人： Patrick M. Lambert ,  William K. Goebel

    发明人： Patrick M. Lambert ,  William K. Goebel

    IPC分类号： G03G9107

    CPC分类号： G03G9/1139 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1131

    摘要： Conductive hard magnetic carrier particles are disclosed which are useful for development of electrostatic latent images. The carrier particles comprise a core of a hard magnetic material, preferably a hard magnetic ferrite such as strontium ferrite, which has a metal oxide composition disposed on the outer surface of the core. The metal oxide composition comprises a layer of an oxide of at least one metal, and in some embodiments, the metal oxide composition may be represented by the formula MOn/2 where M is at least one multi-valent metal represented by Mn+ where n is an integer of at least 4. Also disclosed are carrier particles having the foregoing structure wherein the outer surface of the core further defines a transition zone which extends into the core of hard magnetic ferrite, wherein the ferrite crystal structure within the transition zone is doped with multi-valent metal ions of the formula Mn+, where n is an integer of at least 4. The carrier particles may be used in making single- and two-component developers for use development of electrostatic latent image patterns in an electrographic process. Also disclosed are methods for using such carrier particles in an electrographic process such that the speed and imaging of the process is improved.

    摘要翻译： 公开了用于静电潜像显影的导电硬磁性载体颗粒。 载体颗粒包括硬磁材料的芯，优选铁氧体如铁氧体的硬磁铁氧体，其具有设置在芯的外表面上的金属氧化物组合物。 金属氧化物组合物包含至少一种金属的氧化物层，并且在一些实施方案中，金属氧化物组合物可以由式MOn / 2表示，其中M是由Mn +表示的至少一种多价金属，其中n是 还公开了具有上述结构的载体颗粒，其中芯的外表面还限定延伸到硬磁铁氧体芯中的过渡区，其中过渡区内的铁素体晶体结构掺杂有 式Mn +的多价金属离子，其中n是至少为4的整数。载体颗粒可以用于制备单组分和双组分显影剂，用于在电印过程中显影静电潜像图案。 还公开了在电摄影过程中使用这种载体颗粒的方法，使得改善了该方法的速度和成像。

    Optimal toner charge for use with a compliant transfer intermediate
    9.
    发明授权
    Optimal toner charge for use with a compliant transfer intermediate 失效
    与适配转移中间体一起使用的最佳调色剂电荷

    公开(公告)号：US5835832A

    公开(公告)日：1998-11-10

    申请号：US883459

    申请日：1997-06-26

    申请人： Donald S. Rimai ,  William K. Goebel ,  Salvatore Leone

    发明人： Donald S. Rimai ,  William K. Goebel ,  Salvatore Leone

    IPC分类号： G03G9/08 ,  G03G13/16 ,  G03G15/16

    CPC分类号： G03G9/0819 ,  G03G13/16 ,  G03G15/162 ,  G03G9/0823 ,  G03G2215/0174

    摘要： An improved method and apparatus for robust transfer of toner images using toner particles having a volume average diameter between about 2 .mu.m and about 9 .mu.m is described. Surprisingly good electrostatic transfer is obtained when the surface charge density of the toner is between 3.0.times.10.sup.-9 coul/cm.sup.2 and 6.5.times.10.sup.-9 coul/cm.sup.2 and when this toner is used in conjunction with a compliant transfer intermediate.

    摘要翻译： 描述了使用体积平均直径在约2μm至约9μm之间的调色剂颗粒来稳定转印调色剂图像的改进方法和设备。 当调色剂的表面电荷密度在3.0×10 -9 coul / cm 2和6.5×10 -9 coul / cm 2之间并且当该调色剂与顺应性转移中间体结合使用时，可以获得良好的静电转印。