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    • 12. 发明授权
    • Toner for electrophotography and reinforcing agent for said toner
    • 用于电子照相的调色剂和用于所述调色剂的增强剂
    • US5714294A
    • 1998-02-03
    • US666586
    • 1996-06-24
    • Masayuki MarutaJun ShimizuShinichi SataYasuhiro Hidaka
    • Masayuki MarutaJun ShimizuShinichi SataYasuhiro Hidaka
    • G03G9/08G03G9/087G03G13/08
    • G03G9/0825G03G13/08G03G9/08G03G9/0819G03G9/0827G03G9/08704G03G9/08708G03G9/08711G03G9/08728G03G9/08737G03G9/08791G03G9/08797
    • A toner for electrophotography including a binder resin, a colorant, and a reinforcing agent, the toner being characterized in that the reinforcing agent is resin particles comprising a core layer coated with a vinyl polymer having a glass transition temperature of 50.degree. C. or more, the core layer comprising an acrylic acid ester copolymer and/or a methacrylic acid ester copolymer having a glass transition temperature of 0.degree. C. or less, or a diene copolymer having a glass transition temperature of 0.degree. C. or less; a reinforcing agent for toner including the above resin particles; and in a method for forming fixed images by utilizing a nonmagnetic one-component developing method employing a developer device including a developer roller and a blade, the blade serving to regulate a thickness of a toner layer formed on the developer roller and to supply electric charges to the toner, the method for forming fixed images being characterized by the use of the above toner for electrophotography.
    • PCT No.PCT / JP94 / 02142 Sec。 371日期1996年6月24日 102(e)1996年6月24日PCT 1994年12月19日PCT PCT。 WO95 / 18401 PCT出版物 日期:1995年7月6日,用于电子照相的调色剂,包括粘合剂树脂,着色剂和增强剂,该调色剂的特征在于,增强剂是包含涂覆有玻璃化转变温度为50℃的乙烯基聚合物的芯层的树脂颗粒 ℃以上,所述芯层包含玻璃化转变温度为0℃以下的丙烯酸酯共聚物和/或甲基丙烯酸酯共聚物,或玻璃化转变温度为0℃的二烯共聚物。 或更少; 包含上述树脂颗粒的调色剂增强剂; 并且在利用采用包括显影辊和刮板的显影剂装置的非磁性单组分显影方法形成固定图像的方法中,所述刮板用于调节形成在显影辊上的调色剂层的厚度并提供电荷 对于调色剂,形成固定图像的方法的特征在于使用上述用于电子照相的调色剂。
    • 14. 发明授权
    • Process for producing a resin emulsion and toner
    • 生产树脂乳液和调色剂的方法
    • US07811739B2
    • 2010-10-12
    • US11548463
    • 2006-10-11
    • Nobumichi KamiyoshiShinichi SataYoshinobu Ishikawa
    • Nobumichi KamiyoshiShinichi SataYoshinobu Ishikawa
    • G03G9/08
    • C08J3/05C08J2367/00
    • The present invention relates to a process for producing a resin emulsion which includes the steps of (a) dispersing a resin containing acidic group in a basic aqueous medium at a temperature lower than a softening point of the resin; (b) neutralizing a dispersion obtained in the step (a) at a temperature not lower than a glass transition point of the resin and not higher than the softening point of the resin; and (c) adding an aqueous liquid to the dispersion neutralized in the step (b) at the temperature not lower than the glass transition point of the resin and not higher than the softening point of the resin to emulsify the resin in the aqueous medium. According to the present invention, the resin emulsion suitably usable for production of a toner for electrophotography can be efficiently produced without using an organic solvent and a special apparatus.
    • 本发明涉及一种树脂乳液的制造方法,其包括以下步骤:(a)在低于该树脂的软化点的温度下将含有酸性基团的树脂分散在碱性水性介质中; (b)在不低于树脂的玻璃化转变温度且不高于树脂的软化点的温度下中和步骤(a)中得到的分散体; 和(c)在不低于树脂的玻璃化转变温度的温度下将水性液体添加到步骤(b)中和的分散体中,并且不高于树脂的软化点,以使水性介质中的树脂乳化。 根据本发明,可以在不使用有机溶剂和特殊装置的情况下有效地制造适用于电子照相用调色剂的树脂乳液。
    • 16. 发明授权
    • Process for preparing toner for electrophotography
    • 制备电子照相用调色剂的方法
    • US07521166B2
    • 2009-04-21
    • US11266329
    • 2005-11-04
    • Shinichi SataYoshinobu IshikawaNobumichi Kamiyoshi
    • Shinichi SataYoshinobu IshikawaNobumichi Kamiyoshi
    • G03G9/087
    • G03G9/08755G03G9/0804G03G9/0819
    • A process for preparing a toner for electrophotography comprising a resin binder and a colorant, including the steps of (1) forming primary particles containing the resin binder and the colorant in an aqueous medium in the presence of a nonionic surfactant; and (2) aggregating the primary particles, and unifying the aggregated particle; and a toner for electrophotography obtainable by the process defined above, containing a crystalline polyester in an amount of 60% by weight or more in the toner, wherein the toner has a volume-median particle size (D50) of from 1 to 7 μm. The toner for electrophotography obtained by the present invention can be suitably used in, for example, development of a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method, or the like.
    • 一种制备电子照相用调色剂的方法,包括树脂粘合剂和着色剂,其包括以下步骤:(1)在非离子表面活性剂存在下,在含水介质中形成含有树脂粘合剂和着色剂的一次颗粒; 和(2)聚集一次颗粒,并使凝聚颗粒均匀; 和通过上述方法获得的电子照相用调色剂,其含有调色剂中60重量%以上的结晶性聚酯,其中调色剂的体积中值粒径(D50)为1〜7μm。 通过本发明获得的用于电子照相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。
    • 17. 发明申请
    • PROCESS FOR PRODUCING A RESIN EMULSION
    • 生产树脂乳液的方法
    • US20070088119A1
    • 2007-04-19
    • US11548463
    • 2006-10-11
    • Nobumichi KAMIYOSHIShinichi SataYoshinobu Ishikawa
    • Nobumichi KAMIYOSHIShinichi SataYoshinobu Ishikawa
    • G03G9/08C08G63/60
    • C08J3/05C08J2367/00
    • The present invention relates to a process for producing a resin emulsion which includes the steps of (a) dispersing a resin containing acidic group in a basic aqueous medium at a temperature lower than a softening point of the resin; (b) neutralizing a dispersion obtained in the step (a) at a temperature not lower than a glass transition point of the resin and not higher than the softening point of the resin; and (c) adding an aqueous liquid to the dispersion neutralized in the step (b) at the temperature not lower than the glass transition point of the resin and not higher than the softening point of the resin to emulsify the resin in the aqueous medium. According to the present invention, the resin emulsion suitably usable for production of a toner for electrophotography can be efficiently produced without using an organic solvent and a special apparatus.
    • 本发明涉及一种树脂乳液的制造方法,其包括以下步骤:(a)在低于该树脂的软化点的温度下将含有酸性基团的树脂分散在碱性水性介质中; (b)在不低于树脂的玻璃化转变温度且不高于树脂的软化点的温度下中和步骤(a)中得到的分散体; 和(c)在不低于树脂的玻璃化转变温度的温度下将水性液体添加到步骤(b)中和的分散体中,并且不高于树脂的软化点,以使水性介质中的树脂乳化。 根据本发明,可以在不使用有机溶剂和特殊装置的情况下有效地制造适用于电子照相用调色剂的树脂乳液。
    • 18. 发明授权
    • Yellow toner
    • 黄色调色剂
    • US06350551B1
    • 2002-02-26
    • US09645362
    • 2000-08-25
    • Shinichi SataEiji Shirai
    • Shinichi SataEiji Shirai
    • G03G909
    • G03G9/0912G03G9/08755G03G9/0922G03G9/0924G03G9/09725G03G9/09783
    • A yellow toner comprising fine resin particles and an external additive being added to surfaces of the fine resin particles, wherein the fine resin particles comprise (a) a resin binder comprising a polyester obtained by polycondensing an alcohol component comprising a compound represented by the formula (I), with a carboxylic acid component comprising a dicarboxylic acid compound and a tricarboxylic or higher polycarboxylic acid compound; (b) a colorant comprising a compound represented by the formula (II); and (c) a charge control agent comprising a compound selected from the group consisting of metal compounds of a salicylic acid derivative represented by the formula (III); and metal compounds of a benzilic acid derivative represented by the formula (IV); and wherein the external additive comprises silica having an average particle size of from 35 to 350 nm.
    • 一种黄色调色剂,其包含在树脂颗粒表面添加的树脂微粒和外部添加剂,其中,所述细小树脂颗粒包含(a)树脂粘合剂,所述树脂粘合剂包括通过使包含由式( I),其中包含二羧酸化合物和三羧酸或更高级多元羧酸化合物的羧酸组分; (b)包含由式(II)表示的化合物的着色剂; 和(c)电荷控制剂,其包含选自由式(III)表示的水杨酸衍生物的金属化合物的化合物; 和由式(IV)表示的苯乙酸衍生物的金属化合物; 并且其中所述外部添加剂包括平均粒径为35至350nm的二氧化硅。
    • 20. 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。