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    • 1. 发明申请
    • CONTINUOUS PRODUCTION METHOD FOR PRODUCING POLYMER RESIN PARTICLE
    • 生产聚合物树脂颗粒的连续生产方法
    • US20090036603A1
    • 2009-02-05
    • US12168779
    • 2008-07-07
    • Yasuharu SaitaKazuya IsobeMasashi Mamino
    • Yasuharu SaitaKazuya IsobeMasashi Mamino
    • C08K5/42
    • C08F2/18C08F2/01
    • Disclosed is a method for continuously producing polymer resin particles, including the steps of: introducing a mixed solution of a polymerizable monomer and a chain transfer agent into an aqueous solution of a surface active agent and dispersing a resulting mixture via a mechanical dispersion apparatus to obtain an oil droplet dispersion containing oil droplets exhibiting a median size (D50) of 50 nm-500 μm; feeding the oil droplet dispersion and a solution of a polymerization initiator into a tubular polymerization reactor; polymerizing the polymerizable monomer in the reactor to produce polymer resin particles, wherein the chain transfer agent exhibits a chain transfer constant (Cx) of 1.9-17.1, and the mixed solution of the polymerizable monomer and the polymerization initiator are continuously fed into the reactor and are kept in a plug flow condition in the reactor so as to be polymerized to produce the polymer resin particles.
    • 公开了连续生产聚合物树脂颗粒的方法,包括以下步骤:将可聚合单体和链转移剂的混合溶液引入表面活性剂的水溶液中,并通过机械分散装置分散得到的混合物,得到 含有中值粒径(D50)为50nm-500μm的油滴的油滴分散体; 将油滴分散体和聚合引发剂的溶液进料到管状聚合反应器中; 在反应器中聚合可聚合单体以产生聚合物树脂颗粒,其中链转移剂表现出1.9-17.1的链转移常数(Cx),并将可聚合单体和聚合引发剂的混合溶液连续进料到反应器中, 在反应器中保持活塞流动状态,以便聚合以产生聚合物树脂颗粒。
    • 9. 发明授权
    • Electrophotographic toner
    • 电子照相墨粉
    • US07364827B2
    • 2008-04-29
    • US11298725
    • 2005-12-08
    • Takamasa UedaKazuya Isobe
    • Takamasa UedaKazuya Isobe
    • G03G9/08
    • G03G9/08791G03G9/0806G03G9/08711G03G9/08722G03G9/08726G03G9/08728G03G9/08782G03G9/08795G03G9/08797
    • An electrophotographic toner comprising a resin, a colorant and a release agent which comprises a first wax and a second wax, wherein: (i) the first wax exhibits: an endothermic peak appearing in the range 75-100° C., a peak width at half height of the endothermic peak of 10-40° C., an exothermic peak appearing in the range 70-100° C. and a peak width at half height of the exothermic peak of 10-40° C., in a DSC measurement; (ii) the second wax exhibits: an endothermic peak appearing in the range 60-90° C., a peak width at half height of the endothermic peak of 5° C. or less, an exothermic peak appearing in the range 55-80° C. and a peak width at half height of the exothermic peak of 5° C. or less, in the DSC measurement; (iii) a weight ratio of the first wax to the second wax is between 9:1 and 2:8; and (iv) the resin contains a polar group.
    • 一种包含树脂,着色剂和脱模剂的电子照相调色剂,其包含第一蜡和第二蜡,其中:(i)第一蜡表现出:出现在75-100℃范围内的吸热峰,峰宽 在10-40℃的吸热峰的一半高度处,放热峰出现在70-100℃的范围内,在10-40℃的放热峰的半高峰峰宽在DSC 测量; (ii)第二蜡显示:出现在60-90℃范围内的吸热峰,吸热峰的半高峰峰值为5℃以下,出现在55-80℃范围内的放热峰 在DSC测量中,放热峰的半高峰值为5℃以下; (iii)第一蜡与第二蜡的重量比为9:1至2:8; 和(iv)树脂含有极性基团。
    • 10. 发明授权
    • Toner and image forming method
    • 调色剂和成像方法
    • US06440630B2
    • 2002-08-27
    • US09808296
    • 2001-03-14
    • Kazuya IsobeYoshiaki KobayashiYoshiki NishimoriMeizo ShiroseHiroshi Yamazaki
    • Kazuya IsobeYoshiaki KobayashiYoshiki NishimoriMeizo ShiroseHiroshi Yamazaki
    • G03G1320
    • G03G13/20G03G9/0804G03G15/2057G03G15/206
    • A toner image forming method by developing an electrostatic latent image on a photoreceptor to form a toner image employing a developer comprising toner, transferring the toner image onto an image forming material, and fixing the transferred toner image employing a fixing unit, is disclosed. The fixing unit is comprised of a heating roller and a pressure roller which is brought into contact with said heating roller, the heating roller is constituted of a cylinder having an interior diameter of from 10 to 70 mm and a wall thickness of from 0.1 to 2 mm comprised of a metal or a metal alloy, and a heating member being incorporated in the interior, a surface of the cylinder being covered with a fluorine resin at a thickness of from 10 to 500 &mgr;m, the pressure roller is constituted of a metal cylinder whose surface is covered with an elastic material having an Asker hardness C of less than 80 degrees at a thickness of 0.1 30 mm, and the toner is comprised of a binder resin, a colorant, and a releasing agent, and is obtained by salting out/fusing resin particles comprising releasing agents in binding resins and colorant particles.
    • 一种调色剂图像形成方法,通过在感光体上显影静电潜像以形成使用包含调色剂的显影剂的调色剂图像,将调色剂图像转印到图像形成材料上,以及使用定影单元固定转印的调色剂图像。 固定单元由加热辊和与所述加热辊接触的加压辊组成,加热辊由内径为10至70mm,壁厚为0.1至2mm的圆筒构成 由金属或金属合金构成的加热构件和内部的加热构件,圆筒的表面被氟树脂覆盖,厚度为10〜500μm,加压辊由金属筒构成, 表面用厚度为0.1±30mm的Asker硬度C小于80度的弹性材料覆盖,调色剂由粘合剂树脂,着色剂和 脱模剂,并且通过将粘合树脂和着色剂颗粒中包含脱模剂的树脂颗粒盐化/熔融而获得。