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    • 1. 发明授权
    • Toner fuser roll for high gloss imaging and process for forming same
    • 调色剂定影辊,用于高光泽成像及其成型工艺
    • US06224978B1
    • 2001-05-01
    • US08879896
    • 1997-06-20
    • Jiann H. ChenMuhammed AslamGary F. RobertsStephen V. Davis
    • Jiann H. ChenMuhammed AslamGary F. RobertsStephen V. Davis
    • D02G300
    • G03G15/2057Y10S428/906Y10T428/2935Y10T428/2938Y10T428/2942Y10T428/2962Y10T428/2975Y10T428/298Y10T428/3154Y10T428/31663
    • The toner fuser roll of the present invention, which is characterized by good thermal conductivity and resistance to degradation by release agents in addition to excellent wear properties, is capable of producing toner fused images with desirably high gloss. In accordance with the invention, the fuser roll comprises a cylindrical core and a base cushion layer comprising a condensation-cured poly(dimethylsiloxane) elastomer formed on the core. A barrier layer that comprises a cured fluorocarbon polymer and includes a particulate filler overlies the cushion layer. Overlying the barrier layer is a highly smooth outer surface layer comprising an addition-cured poly(dimethylsiloxane) elastomer and having a roughness value, Ra, no greater than about 10 microinches. Further in accordance with the invention is a process for forming the just described toner fuser roll. In addition to its capability of producing a highly smooth PDMS outermost layer, the process is environmentally advantageous, employing coating formulations containing volatile organic compounds at levels below those mandated by environmental regulations.
    • 除了优异的耐磨特性之外,本发明的调色剂定影辊的特征在于具有良好的导热性和耐脱模剂的降解性,能够以期望的高光泽产生调色剂熔融图像。 根据本发明,定影辊包括圆柱形芯和包含在芯上形成的缩合固化的聚(二甲基硅氧烷)弹性体的基底垫层。 包含固化氟碳聚合物并且包括颗粒填料的阻挡层覆盖在缓冲层上。 覆盖阻挡层是高度光滑的外表面层,其包含加成固化的聚(二甲基硅氧烷)弹性体,其粗糙度值Ra不大于约10微英寸。 另外根据本发明是用于形成刚才描述的调色剂定影辊的方法。 除了生产高度光滑的PDMS最外层的能力之外,该方法是环境有利的,使用含有挥发性有机化合物的涂层制剂,其水平低于环境法规规定的水平。
    • 3. 发明授权
    • Oil swell controlling fuser member having a silicone T-resin
    • 具有硅树脂T型树脂的油膨胀控制定影器构件
    • US5960245A
    • 1999-09-28
    • US204601
    • 1998-12-03
    • Jiann H. ChenStephen V. DavisRobert A. Lancaster
    • Jiann H. ChenStephen V. DavisRobert A. Lancaster
    • C08L83/04G03G15/20
    • G03G15/2057C08L83/04C08G77/16C08G77/70Y10T428/31663
    • A fuser member having a support metallic core and an outer layer of material formed over the metallic core, the outer layer including composite material, having a crosslinkable poly(dialkylsiloxane) incorporating an oxide, wherein the poly(dialkylsiloxane) has a weight average molecular weight before crosslinking of about 1,000 to 90,000; one or more crosslinkable poly(siloxane) selected from the group consisting of poly(diarylsiloxane), poly(arylalkylsiloxanes) or mixtures thereof wherein the (diaryllsiloxane) or poly(arylalkylsiloxane) has a weight average molecular weight before crosslinking of about 1,000 to 90,000, a silicone T-resin; at least one silane crosslinking agents; and wherein the weight average molecular weight of the mixture of poly(dialkylsiloxane) and poly(siloxane) is about 5,000 to 80,000.
    • 一种定影器构件,其具有支撑金属芯和形成在所述金属芯上的材料外层,所述外层包括复合材料,其具有结合有氧化物的可交联的聚(二烷基硅氧烷),其中所述聚(二烷基硅氧烷)具有重均分子量 交联前约1000至90,000; 一种或多种选自聚(二芳基硅氧烷),聚(芳基烷基硅氧烷)或其混合物的可交联聚(硅氧烷),其中(二芳基硅氧烷)或聚(芳基烷基硅氧烷)交联前的重均分子量为约1,000至90,000, 硅树脂T型树脂; 至少一种硅烷交联剂; 并且其中聚(二烷基硅氧烷)和聚(硅氧烷)的混合物的重均分子量为约5,000至80,000。
    • 5. 发明授权
    • Method for applying a protective overcoat to a photographic element
using a fuser belt
    • 使用定影带将保护性外涂层施加到照相元件的方法
    • US6083676A
    • 2000-07-04
    • US299291
    • 1999-04-26
    • Jiann H. ChenStephen V. Davis
    • Jiann H. ChenStephen V. Davis
    • G03C11/08G03C1/76
    • G03C11/08
    • A method of forming a protective overcoat on a photographic element including the steps of providing a photographic element having a silver halide light-sensitive emulsion layer; applying a hydrophobic polymeric coating over the silver halide light sensitive emulsion layer; fusing the hydrophobic polymeric coating to the photographic element over the silver halide light sensitive emulsion layer to form a protective overcoat; by passing the photographic element through a nip formed between a heated fuser belt having a resin made by curing a composition including siloxanes and a roller to fuse the hydrophobic polymeric coating to the photographic element, wherein the siloxanes having a ratio of difunctional to trifunctional units of 1:1 to 1:2.7 and at least 90% of total number of functional units in the siloxanes are difunctional and trifunctional units, a weight average molecular weight of 5,000 to 50,000 grams/mole, and an alkyl to aryl ratio of 1:0.1 to 1:1.2.
    • 一种在照相元件上形成保护性外涂层的方法,包括以下步骤:提供具有卤化银感光乳剂层的照相元件; 在卤化银感光乳剂层上涂覆疏水性聚合物涂层; 将疏水性聚合物涂层与卤化银感光乳剂层上的照相元件融合以形成保护性外涂层; 通过将照相元件通过在具有通过固化包含硅氧烷的组合物制成的树脂的加热的定影带之间形成的辊隙和辊来将疏水性聚合物涂层熔合到照相元件,其中具有双官能度与三官能单元比例的硅氧烷 1:1至1:2.7,并且硅氧烷中官能单元总数的至少90%是双官能和三官能单元,重均分子量为5,000至50,000克/摩尔,烷基与芳基之比为1:0.1 至1:1.2。
    • 8. 发明授权
    • Fuser using ceramic roller
    • 定影器采用陶瓷辊
    • US5991591A
    • 1999-11-23
    • US35250
    • 1998-03-05
    • Jiann H. ChenDilip K. ChatterjeeStephen V. Davis
    • Jiann H. ChenDilip K. ChatterjeeStephen V. Davis
    • G03G15/20
    • G03G15/2025G03G15/2053G03G2215/2093
    • A fuser for fixing particulate imaging material to a receiver sheet, including a fuser roller and a pressure roller in contact with the fuser roller which engage each other at a fixing nip, wherein pressure is used in fixing the particulate imaging material to the receiver sheet; a supply of offset preventing oil with such offset preventing oil being adapted to react with the zirconia ceramic or its composites to prevent offset of the particulate imaging material; a metering roller in contact with the supply of offset preventing oil for wicking such offset preventing oil onto the surface of the metering roller. The method further includes a donor roller in contact with the metering roller and the fuser roller for receiving offset preventing oil from the metering roller and applying it to the surface of the fuser roller; and one of the rollers forming the fixing nip having a surface formed from zirconia ceramic or its composites which has a hardness greater than 12 GPa and toughness greater than 6 MPa.sqroot.mm.
    • 一种定影器,用于将颗粒成像材料固定到接收片上,所述接收片包括定影辊和与定影辊接触的定影辊的压辊,其中使用压力将微粒成像材料固定到接收片; 提供具有防偏移油的防偏移油适于与氧化锆陶瓷或其复合材料反应以防止颗粒成像材料的偏移; 计量辊与供给防止漏油的油接触,以防止油墨偏移到计量辊的表面上。 该方法还包括与计量辊和定影辊接触的供体辊,用于接收来自计量辊的偏移防止油并将其施加到定影辊的表面; 并且形成定影辊隙的辊中的一个具有由氧化锆陶瓷形成的表面或其复合材料,其硬度大于12GPa,韧性大于6MPa 2ROOT + E,rad mm + EE。