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    • 4. 发明授权
    • Toner for electrophotography
    • 电子照相用碳粉
    • US07625684B2
    • 2009-12-01
    • US11172834
    • 2005-07-05
    • Nobumichi KamiyoshiKoji ShimokusaTakashi YamaguchiShinichi Sata
    • Nobumichi KamiyoshiKoji ShimokusaTakashi YamaguchiShinichi Sata
    • G03G9/087
    • G03G9/08797G03G9/08755G03G9/08782G03G9/08795
    • A toner for electrophotography containing a resin binder and a colorant, wherein the resin binder contains a polyester in an amount higher than 50% by weight of the resin binder, wherein the polyester is obtained by polycondensing an alcohol component containing 60% by mol or more of an aliphatic diol having 3 to 10 carbon atoms and a carboxylic acid component comprising 80% by mol or more of an aromatic dicarboxylic acid compound, the polyester having an index of crystallinity of from 0.6 to 1.5, and a glass transition temperature of 0° C. or more and less than 40° C. The toner for electrophotography of the present invention can be used for, for example, developing electrostatic latent images formed in electrophotography, electrostatic recording method, electrostatic printing method, or the like.
    • 一种含有树脂粘合剂和着色剂的电子摄影用调色剂,其中树脂粘合剂含有高于树脂粘合剂的50重量%的聚酯,其中聚酯是通过将含有60摩尔%以上的醇成分缩聚得到的 的具有3至10个碳原子的脂族二醇和包含80摩尔%以上芳族二羧酸化合物的羧酸组分,所述聚酯的结晶度为0.6〜1.5,玻璃化转变温度为0℃ C.以上且小于40℃。本发明的电子照相用调色剂可用于例如在电子照相术中形成的静电潜像显影,静电记录方法,静电印刷方法等。
    • 7. 发明授权
    • Releasing agent dispersion
    • 脱模剂分散体
    • US08029966B2
    • 2011-10-04
    • US11829558
    • 2007-07-27
    • Nobumichi Kamiyoshi
    • Nobumichi Kamiyoshi
    • G03G5/00
    • G03G9/09733G03G9/0804G03G9/09741G03G9/0975G03G9/09791
    • The present invention relates to a releasing agent dispersion for toner including a releasing agent, and a dibasic acid containing an alkyl group and/or an alkenyl group or a salt of the dibasic acid, wherein at least one acid group of the dibasic acid is a carboxyl group; and a toner for electrophotography which is produced by aggregating and unifying releasing agent particles and resin particles contained in a dispersion produced by mixing or contacting the releasing agent dispersion with a resin dispersion. The releasing agent dispersion for toner according to the present invention has a good emulsifiability and a good emulsification stability, and is capable of producing a toner which is excellent in productivity and low-temperature fixing property.
    • 本发明涉及包含脱模剂的调色剂用脱模剂分散体和含有烷基和/或链烯基的二元酸或二元酸的盐,其中,二元酸的至少一个酸基为 羧基; 以及通过将脱模剂分散体与树脂分散体混合或接触而制造的分散体中所含的脱模剂颗粒和树脂颗粒聚集并整合而制造的电子照相用调色剂。 根据本发明的调色剂用脱模剂分散体具有良好的乳化性和良好的乳化稳定性,并且能够生产生产率和低温定影性优异的调色剂。
    • 8. 发明申请
    • MANUFACTURING METHOD FOR POLYESTER PARTICLE DISPERSION LIQUID
    • 聚酯颗粒分散液的制造方法
    • US20110177445A1
    • 2011-07-21
    • US13061912
    • 2009-09-07
    • Shoichi MurataHiroshi MizuhataNobumichi KamiyoshiEiji Shirai
    • Shoichi MurataHiroshi MizuhataNobumichi KamiyoshiEiji Shirai
    • G03G9/08
    • G03G9/08797C08J3/05C08J3/07C08J2367/00G03G9/0804G03G9/08755
    • The present invention relates to a process for producing a dispersion of polyester particles which includes the step of emulsifying mixed polyester containing (1) an amorphous polyester containing a constitutional unit derived from a trivalent or higher-valent carboxylic acid in an amount of from 2.0 to 12.0 mol % on the basis of whole constitutional units of the whole amorphous polyester and (2) a crystalline polyester, in an aqueous medium in a single vessel, or the step of mixing the mixed polyester with an organic solvent and then adding the aqueous medium to the resulting mixture to emulsify the mixed polyester in a single vessel. The present invention also relates to a dispersion of polyester particles produced by the above production process, as well as a toner for electrophotography which is produced by subjecting the dispersion of the polyester particles to aggregation and coalescence and is excellent in both of a low-temperature fusing property and an anti-hot offset property, and a process for producing the toner.
    • 本发明涉及一种聚酯粒子分散体的制造方法,其特征在于,包括将含有(1)含有来源于三价以上羧酸的结构单元的无定形聚酯的混合聚酯的工序 基于整个无定形聚酯的全部结构单元为12.0摩尔%,(2)结晶性聚酯,在单一容器中的水性介质中,或将混合聚酯与有机溶剂混合,然后添加水性介质 与所得混合物在单一容器中乳化混合的聚酯。 本发明还涉及通过上述制备方法制备的聚酯颗粒的分散体,以及通过使聚酯颗粒的分散体进行聚集和聚结而制备的电子照相用调色剂,并且在低温 熔融性和抗热粘合性,以及调色剂的制造方法。
    • 9. 发明授权
    • Process for preparing toner for electrophotography
    • 制备电子照相用调色剂的方法
    • US07887983B2
    • 2011-02-15
    • US11199220
    • 2005-08-09
    • Shinichi SataYoshinobu IshikawaNobumichi Kamiyoshi
    • Shinichi SataYoshinobu IshikawaNobumichi Kamiyoshi
    • G03G9/087
    • G03G9/08755G03G9/0804G03G9/0819G03G9/0821G03G9/08795G03G9/08797
    • The present invention relates to a process for preparing a toner for electrophotography containing a resin binder and a colorant, including the step of preparing fine particles of the resin binder to have a volume-median particle size (D50) of from 0.05 to 3 μm in an aqueous medium in the presence of a nonionic surfactant within a temperature range of from 10° C. below to 10° C. above a cloud point of the nonionic surfactant; and a toner for electrophotography obtained by the process as defined above, wherein the toner contains 60% by weight or more of a crystalline polyester and has a volume-median particle size (D50) of from 1 to 7 μm. The toner obtained according to the process of the present invention can be suitably used, for example, in development of a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method, or the like.
    • 本发明涉及一种制备含有树脂粘合剂和着色剂的用于电子照相的调色剂的方法,包括以下步骤:制备树脂粘合剂的细颗粒,使体积中值粒径(D50)为0.05-3μm 在非离子表面活性剂的浊点以上10℃以下-10℃以下的非离子表面活性剂存在下的水性介质; 和通过上述方法获得的用于电子照相的调色剂,其中调色剂含有60重量%以上的结晶性聚酯,其体积中值粒径(D50)为1〜7μm。 根据本发明的方法获得的调色剂可以适用于例如在电子照相术,静电记录方法,静电印刷方法等中形成的潜像的显影。