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公开(公告)号：US5110703A
公开(公告)日：1992-05-05
申请号：US496138
申请日：1990-03-19
IPC分类号： G03G9/10
CPC分类号： G03G9/10
摘要： A carrier for use in developing an electrostatic or magnetic latent image in electrophotography, electrostatic recording, electrostatic printing or the like, which carrier is produced by atomizing a molten mixture of a magnetic powder and a binder resin containing a polyolefin and a polyolefin having a functional group. The polyolefin having a functional group is present in an amount ranging from about 50% by weight or less based on the total weight of the binder resin.
摘要翻译： 用于显影电子照相，静电记录，静电印刷等中的静电或磁潜像的载体，该载体通过使包含聚烯烃和具有官能团的聚烯烃的磁性粉末和粘合剂树脂的熔融混合物雾化来制造 组。 具有官能团的聚烯烃的存在量为约50重量％以下，基于粘合剂树脂的总重量。
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2.发明授权
公开(公告)号：US4965160A
公开(公告)日：1990-10-23
申请号：US412567
申请日：1989-09-25
CPC分类号： G03G9/107 , G03G9/1134 , G03G9/1139 , Y10T428/2998
摘要： A developer carrier is disclosed, which has a core containing a binder resin and a magnetic powder, and a surface layer thereon containing a compound having a lower critical surface tension than the binder resin. This developer when used in a magnetic brush development process provides superior charge characteristics, resistance to environmental changes, and extended life. In another aspect, the invention relates to a developer carrier produced by a process of (a) melting a carrier composition containing a binder resin, a magnetic powder and a compound having a lower critical surface tension than the binder resin, (b) spraying the molten carrier composition to form droplets, and (c) cooling the droplets with a gas stream having a temperature lower than the melting point of the composition to form substantially spherical particles having a high surface smoothness.
摘要翻译： 公开了一种显影剂载体，其具有含有粘合剂树脂和磁性粉末的芯，以及其上含有比粘合剂树脂具有较低临界表面张力的化合物的表面层。 这种显影剂用于磁刷显影工艺时，具有优异的电荷特性，耐环境变化，延长使用寿命。 另一方面，本发明涉及通过以下方法生产的显影剂载体：（a）熔化含有粘合剂树脂，磁性粉末和具有比粘合剂树脂低的临界表面张力的化合物的载体组合物，（b）将 熔融载体组合物以形成液滴，以及（c）用温度低于组合物熔点的气流冷却液滴，以形成具有高表面平滑度的基本上球形的颗粒。
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公开(公告)号：US4859558A
公开(公告)日：1989-08-22
申请号：US143881
申请日：1988-01-14
CPC分类号： G03G9/09775
摘要： A toner composition for a two-component type developer capable of developing electrostatically charged images formed on a photoreceptor having a surface layer comprising organic substances, wherein the toner composition contains a fatty acid bisamide compound as an external additive.
摘要翻译： 一种用于双组分型显影剂的调色剂组合物，其能够显影形成在具有包含有机物质的表面层的感光体上的静电荷图像，其中调色剂组合物含有脂肪酸双酰胺化合物作为外部添加剂。
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公开(公告)号：US4791041A
公开(公告)日：1988-12-13
申请号：US58421
申请日：1987-06-05
CPC分类号： G03G9/1134 , G03G9/107 , Y10T428/2998
摘要： A carrier for developer is disclosed, which comprises a core having an average particle size of from 50 to 200 .mu.m and comprising fine magnetic particles dispersed in a binder resin and a polymer overcoat having a critical surface tension of from 10 to 25 dyn/cm formed on the surface of the core. The carrier has improved chargeability, high resistance to surface soiling, and high mechanical strength.
摘要翻译： 公开了一种显影剂用载体，其包含平均粒度为50〜200μm的核，其包含分散在粘合剂树脂中的细小磁性粒子和具有10〜25dyn / cm的临界表面张力的聚合物外涂层 形成在芯的表面上。 载体具有改善的带电性，高表面污染性和高机械强度。
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公开(公告)号：US5155000A
公开(公告)日：1992-10-13
申请号：US436128
申请日：1989-11-14
CPC分类号： G03G9/09716
摘要： A dry toner composition containing titanium dioxide particles, the surfaces of the particles comprising an organic compound having a melting point of from about 40.degree. C. to about 150.degree. C.
摘要翻译： 含有二氧化钛颗粒的干燥调色剂组合物，颗粒的表面包含熔点为约40℃至约150℃的有机化合物。
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公开(公告)号：US4868083A
公开(公告)日：1989-09-19
申请号：US77727
申请日：1987-07-27
IPC分类号： G03G9/10
CPC分类号： G03G9/10
摘要： A process for producing a developer carrier is disclosed, which comprises heating a carrier composition containing a resin, magnetic particles and a compound having a lower critical surface energy than the resin, to produce a carrier particle having a higher surface concentration of the compound having a lower critical surface energy. A developer carrier having an average particle size of at least about 50 .mu.m and containing a fluorine-containing compound and fine magnetic particles dispersed in a binder resin is also disclosed. The developer carriers according to the invention when used in magnetic brush development provide superior charge generation, extended life and improved image reproduction.
摘要翻译： 公开了一种制造显影剂载体的方法，其包括加热含有树脂，磁性颗粒和具有比树脂低的临界表面能的化合物的载体组合物，以产生具有较高表面能的化合物的载体颗粒， 降低临界表面能。 还公开了具有至少约50μm的平均粒度并含有含氟化合物和分散在粘合剂树脂中的细小磁性颗粒的显影剂载体。 当用于磁刷显影时，根据本发明的显影剂载体提供优异的电荷产生，延长的寿命和改进的图像再现性。
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公开(公告)号：US5106715A
公开(公告)日：1992-04-21
申请号：US306717
申请日：1989-02-06
CPC分类号： G03G9/08704 , G03G9/08728 , G03G9/08782 , G03G9/08797 , G03G9/09708 , G03G9/09725
摘要： A toner composition for thermal fixing is disclosed, comprising a colorant, an external additive and a binder resin that contains a thermoplastic resin having a glass transition point of from 20.degree. C. to less than 50.degree. C. and a polyolefin polymer having an average molecular weight of 800 or more, the polyolefin polymer being present in an amount of from 5 wt % to less than 50 wt % of the total binder resin.
摘要翻译： 公开了一种用于热定影的调色剂组合物，其包含着色剂，外部添加剂和粘合剂树脂，其包含玻璃化转变点为20℃至小于50℃的热塑性树脂和具有平均值的聚烯烃聚合物 分子量为800以上，聚烯烃聚合物的存在量为总粘合剂树脂的5重量％至小于50重量％。
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公开(公告)号：US5849451A
公开(公告)日：1998-12-15
申请号：US895634
申请日：1997-07-17
申请人： Yuka Ishihara , Chiaki Suzuki , Tetsu Torigoe , Atuhiko Eguchi , Takayoshi Aoki
发明人： Yuka Ishihara , Chiaki Suzuki , Tetsu Torigoe , Atuhiko Eguchi , Takayoshi Aoki
CPC分类号： G03G9/09716 , G03G9/09725 , Y10S430/104
摘要： An electrophotographic dry toner comprising toner particles having externally added thereto fine particles of an inorganic compound having been surface treated with an amphoteric surface active agent. The toner is excellent in fluidity, anti-caking properties, charging properties, and environmental stability and provides excellent images free from defects such as black spots.
摘要翻译： 一种电子照相干调色剂，其包含外部添加了用两性表面活性剂进行表面处理的无机化合物的细颗粒的调色剂颗粒。 调色剂的流动性，抗结块性，充电性能和环境稳定性优异，并且提供了没有诸如黑点的缺陷的优良图像。
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9.发明授权Toners, process for the preparation thereof, developers and method of forming images 失效调色剂，其制备方法，显影剂和形成图像的方法公开(公告)号：US06268099B1
公开(公告)日：2001-07-31
申请号：US08861738
申请日：1997-05-22
申请人： Atsuhiko Eguchi , Chiaki Suzuki , Takayoshi Aoki
发明人： Atsuhiko Eguchi , Chiaki Suzuki , Takayoshi Aoki
IPC分类号： G03G9097
CPC分类号： G03G9/08782 , G03G9/08706 , G03G9/08708 , G03G9/08711 , G03G9/1132
摘要： Disclosed herein are a toner comprising a binder resin, a coloring agent, and, as a lubricant, a polyethylene wax having a penetration of 5 to 12 dmm and a melt viscosity of less than or equal to 1.5 at 130° C., a process for the preparation thereof, a developer using the toner, and a method of forming images using the toner. According to the present invention, incomplete images in the transfer process can be prevented; excellent flowability is provided and the blocking phenomenon can be prevented; the transfer process can be carried out with less electric consumption. The offset resistance is also good, and the releasability is effectively exhibited at lower temperatures.
摘要翻译： 本文公开了一种调色剂，其包含粘合剂树脂，着色剂和作为润滑剂的在130℃下具有5至12dmm的渗透性和小于或等于1.5的熔体粘度的聚乙烯蜡， 为了制备它们，使用调色剂的显影剂，以及使用调色剂形成图像的方法。 根据本发明，可以防止转印过程中的不完整图像; 提供优异的流动性并且可以防止阻塞现象; 转移过程可以用较少的电力消耗进行。 耐偏移性也良好，并且在较低温度下有效显示脱模性。
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公开(公告)号：US5928825A
公开(公告)日：1999-07-27
申请号：US668447
申请日：1996-06-21
申请人： Atsuhiko Eguchi , Hideki Sakai , Takeo Kigami , Chiaki Suzuki , Takayoshi Aoki
发明人： Atsuhiko Eguchi , Hideki Sakai , Takeo Kigami , Chiaki Suzuki , Takayoshi Aoki
CPC分类号： G03G9/08782
摘要： A toner for developing electrostatic latent images containing a binder resin, a colorant, and a lubricant, wherein the lubricant comprises a modified polyethylene wax which is obtained by homopolymerizing ethylene or copolymerizing ethylene and an .alpha.-olefin having 3 to 10 carbon atoms in the presence of a metallocene catalyst and modifying the resulting homo- or copolymer by grafting thereto a styrene monomer and/or an unsaturated carboxylic acid monomer, the lubricant having a hexane extraction of not more than 65% by weight. The toner exhibits release properties at a lower temperature and thereby has satisfactory anti-offset properties without impairing powder fluidity and anti-blocking properties. It provides a toner image resistant against scratches by a peeling claw of a fixing roll part and against rub-of.
摘要翻译： 用于显影含有粘合剂树脂，着色剂和润滑剂的静电潜像的调色剂，其中所述润滑剂包含改性聚乙烯蜡，其通过在乙烯存在下均聚乙烯或共聚乙烯和具有3至10个碳原子的α-烯烃而获得 的茂金属催化剂，并通过与苯乙烯单体和/或不饱和羧酸单体接枝来改性所得到的均聚物或共聚物，所述润滑剂的己烷萃取不超过65重量％。 调色剂在较低温度下具有脱模性能，因此具有令人满意的抗粘合性能，而不损害粉末流动性和防粘连性。 它提供了抵抗由定影辊部分的剥离爪划伤并抵抗擦伤的调色剂图像。
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