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    • 6. 发明授权
    • Polymer coated carrier particles for electrophotographic developers
    • 用于电子照相显影剂的聚合物涂覆的载体颗粒
    • US06245474B1
    • 2001-06-12
    • US09520446
    • 2000-03-07
    • George R. HsuScott M. SilenceLynne M. TatarBernard A. KellyPinyen Lin
    • George R. HsuScott M. SilenceLynne M. TatarBernard A. KellyPinyen Lin
    • G03G910
    • G03G9/1133G03G9/10G03G9/107G03G9/1134
    • A coated carrier having a core particle coated with a mixture of an electronegative insulating polymer comprising a polyvinylidenefluoride polymer or copolymer and an electropositive conductive polymer comprising a polymethyl methacrylate polymer or copolymer with a conductive material dispersed therein is made by powder coating. The coated carrier has unique properties, including a conductivity of from 1.1×10−14 to 1.0×10−8 mho-cm−1, a triboelectric charging value of from 12 to 20 and an average particle diameter of from 65 to 75, rendering the coated carrier ideal for use in a developer to be used in a magnetic brush type development apparatus. The powder coating method includes mixing the core particle and the mixture of negatively charging polymer and conductive polymer until the mixture of negatively charging polymer and conductive polymer adheres to the core particle, heating the mixture of the core particle and the mixture of negatively charging polymer and conductive polymer until the mixture of negatively charging polymer and conductive polymer melts and fuses to the core particle, and cooling the coated core obtained.
    • 通过粉末涂料制成涂覆载体,其具有涂覆有包含聚偏二氟乙烯聚合物或共聚物的电负极绝缘聚合物和包含分散有导电材料的聚甲基丙烯酸甲酯聚合物或共聚物的正电导电聚合物的混合物的核心颗粒。 涂层载体具有独特的性能,包括电导率为1.1×10-14至1.0×10-8mho-cm-1,摩擦带电值为12至20,平均粒径为65至75,使涂层 载体用于用于磁刷式显影装置的显影剂中。 粉末涂布方法包括将核心颗粒和负电荷聚合物和导电聚合物的混合物混合,直到带负电的聚合物和导电聚合物的混合物粘附到核心颗粒,加热核心颗粒和负电聚合物的混合物和 导电聚合物,直到带负电的聚合物和导电聚合物的混合物熔化并熔化到核心颗粒,并冷却涂覆的芯获得。
    • 7. 发明授权
    • Electrostatic powder coated wire for hybrid scavengeless development applications and process for making same
    • 用于杂交无花开发应用的静电粉末涂层线及其制造方法
    • US06322858B1
    • 2001-11-27
    • US09606668
    • 2000-06-30
    • Bernard A. KellyScott M. SilenceMerrilee A. Galloway
    • Bernard A. KellyScott M. SilenceMerrilee A. Galloway
    • B05D104
    • B05D7/20B05D1/06B05D3/0209G03G2215/0621G03G2215/0643
    • An electrode wire for a hybrid scavengeless developer unit is electrostatically coated with a conductive coating comprised of a crosslinked polymer and a conductive material. The wire is coated by first electrostatically coating the wire with a coating composition including a crosslinkable polymer and a conductive material. Following electrostatic application of the coating, the coated wire is initially heated to a temperature above the melt temperature of the crosslinkable polymer and below the crosslinking temperature of the polymer for a time sufficient to permit the at least one polymer to flow out over the surface of the wire, and then further heated by increasing the temperature of heating above the crosslinking temperature of the polymer for a time sufficient to crosslink the polymer. A tough, substantially smooth coated electrode wire is achieved that, when used in a hybrid scavengeless developer unit, exhibits little to no buildup of toner or toner components on the surface of the wire, thereby eliminating image quality defects that might otherwise be caused by such buildup.
    • 用于混合清除显影剂单元的电极线用由交联聚合物和导电材料组成的导电涂层静电涂覆。 通过首先用包含可交联聚合物和导电材料的涂料组合物静电涂覆线材来涂覆线材。 在静电涂覆涂层之后,涂覆的丝线最初被加热到高于可交联聚合物的熔融温度并低于聚合物的交联温度的温度足以允许至少一种聚合物在 然后通过将聚合物的交联温度升高到高于聚合物交联温度的时间来进一步加热足以交联聚合物的时间。 实现了坚固,基本上光滑的涂覆电极线,当用于混合清扫显影剂单元中时,在电线表面上显示出很少或没有调色剂或调色剂组分的积累,从而消除了否则可能由此引起的图像质量缺陷 积聚。
    • 8. 发明授权
    • Electrostatic powder coated wire for hybrid scavengeless development applications
    • 用于杂交无花开发应用的静电粉末涂层线
    • US06298209B1
    • 2001-10-02
    • US09606667
    • 2000-06-30
    • Bernard A. KellyScott M. SilenceMerrilee A. Galloway
    • Bernard A. KellyScott M. SilenceMerrilee A. Galloway
    • G03G1508
    • G03G15/0803G03G2215/0621G03G2215/0643
    • An electrode wire for a hybrid scavengeless developer unit is electrostatically coated with a conductive coating comprised of a crosslinked polymer and a conductive material. The wire is coated by first electrostatically coating the wire with a coating composition including a crosslinkable polymer and a conductive material. Following electrostatic application of the coating, the coated wire is initially heated to a temperature above the melt temperature of the crosslinkable polymer and below the crosslinking temperature of the polymer for a time sufficient to permit the at least one polymer to flow out over the surface of the wire, and then further heated by increasing the temperature of heating above the crosslinking temperature of the polymer for a time sufficient to crosslink the polymer. A tough, substantially smooth coated electrode wire is achieved that, when used in a hybrid scavengeless developer unit, exhibits little to no buildup of toner or toner components on the surface of the wire, thereby eliminating image quality defects that might otherwise be caused by such buildup.
    • 用于混合清除显影剂单元的电极线用由交联聚合物和导电材料组成的导电涂层静电涂覆。 通过首先用包含可交联聚合物和导电材料的涂料组合物静电涂覆线材来涂覆线材。 在静电涂覆涂层之后,涂覆的丝线最初被加热到高于可交联聚合物的熔融温度并低于聚合物的交联温度的温度足以允许至少一种聚合物在 然后通过将聚合物的交联温度升高到高于聚合物交联温度的时间来进一步加热足以交联聚合物的时间。 实现了坚固,基本上光滑的涂覆电极线,当用于混合清扫显影剂单元中时,在电线表面上显示出很少或没有调色剂或调色剂组分的积累,从而消除了否则可能由此引起的图像质量缺陷 积聚。