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    • 27. 发明授权
    • Fuser system with donor roller having a controlled swell release agent surface layer
    • 具有受控膨胀释放剂表面层的供体辊的定影系统
    • US06555237B1
    • 2003-04-29
    • US09957127
    • 2001-09-20
    • Jiann Hsing ChenJoseph A. PavliskoMuhammed AslamFangsheng Wu
    • Jiann Hsing ChenJoseph A. PavliskoMuhammed AslamFangsheng Wu
    • B32B904
    • G03G15/2025C08G77/12C08G77/20C08L83/04Y10T428/31663C08L83/00
    • Disclosed is a release agent donor roller, and methods and fusing systems which incorporate the donor roller, for applying a polymeric release agent to a fuser roller in an electrophotographic apparatus. The donor roller comprises a base member with a polymeric outer layer thereover comprising a silicone material with a controlled, relatively high swelling characteristic in the release agent, i.e., the layer has a swell in 300 cts poly(dimethylsiloxane) oil maintained at a temperature of 175° C. after 24 hours exposure of greater than 15% by weight. When operated in a fusing system, the donor roller exhibits relatively low toner contamination levels, even for relatively low melting polymer binder resins used in producing toners, such as polyester resins. The swell characteristic is still at an acceptable level such that the donor roller has adequate mechanical stability.
    • 公开了一种脱模剂供体辊,以及包含供体辊的方法和熔融体系,用于将聚合物脱模剂施加到电子照相设备中的定影辊。 供体辊包括具有聚合物外层的基底构件,其中包含在脱模剂中具有受控的相对高的溶胀特性的硅氧烷材料,即,该层在300cts聚(二甲基硅氧烷)油中的溶胀保持在温度为 暴露24小时后大于15重量%175℃。 当在定影系统中操作时,即使对于用于生产调色剂(例如聚酯树脂)的相对低熔点的聚合物粘合剂树脂,供体辊显示相对较低的调色剂污染水平。 膨胀特性仍处于可接受的水平,使得供体辊具有足够的机械稳定性。