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    • 7. 发明申请
    • Method for producing hydroxyl group-containing polymer particles
    • 制备含羟基聚合物颗粒的方法
    • US20050009996A1
    • 2005-01-13
    • US10784183
    • 2004-02-24
    • Yoshihiro InabaTakako KobayashiChisato Urano
    • Yoshihiro InabaTakako KobayashiChisato Urano
    • C08F8/00C08F20/18C08F20/10
    • C08F8/00C08F2800/20C08F2220/1825
    • The present invention provides a method for producing hydroxyl group-containing polymer particles including causing cross-linked polymer particles containing a (meth)acrylate polymer to react in the presence of a metal-containing ester-exchange reaction catalyst with at least one compound selected from the group consisting of a compound including at least two hydroxyl groups and a compound including at least one primary amino group and at least one hydroxyl group, the cross-linked polymer particles comprising the (meth)acrylate polymer represented by the following formula (I): wherein R1 represents a hydrogen atom or a methyl group; R2 to R4 may be the same or different from each other, and each independently represents a substituted or non-substituted alkyl group or a substituted or non-substituted aryl group, any one of which has 1 to 12 carbon atoms; and n represents an integer of 1 or more.
    • 本发明提供一种含羟基聚合物颗粒的制造方法,其包括使含有(甲基)丙烯酸酯聚合物的交联聚合物颗粒在含金属的酯交换反应催化剂存在下与至少一种选自 由包含至少两个羟基的化合物和包含至少一个伯氨基和至少一个羟基的化合物组成的组,所述交联聚合物颗粒包含由下式(I)表示的(甲基)丙烯酸酯聚合物, 其中R 1表示氢原子或甲基; R 2至R 4可以彼此相同或不同,并且各自独立地表示取代或未取代的烷基或取代或未取代的芳基,其中任何一个具有1至12个碳 原子 n表示1以上的整数。
    • 9. 发明授权
    • Developer for electrostatic photography and image forming method
    • 静电摄影和图像形成方法的开发者
    • US5783350A
    • 1998-07-21
    • US762396
    • 1996-12-09
    • Hirotaka MatsuokaTakako Kobayashi
    • Hirotaka MatsuokaTakako Kobayashi
    • G03G9/12G03G9/125G03G9/13G03G15/10
    • G03G9/125G03G9/12G03G9/131
    • The developer for electrostatic photography according to the present invention comprises toner particles containing a thermoplastic resin and a colorant dispersed in an electrically insulating carrier having a melting point above room temperature wherein the thermoplastic resin is insoluble in the electrically insulating carrier at a temperature below the melting point of the electrically insulating carrier but becomes solvated with the electrically insulating carrier at a temperature above the melting point of the electrically insulating carrier. The present invention provides a developer for electrostatic photography, which enables to reduce the emission of vapor, to carry out a fixing treatment at a higher rate, to reduce the amount of energy required for fixing treatment and to create a high-quality image even after repeated use of the developer.
    • 根据本发明的用于静电摄影的显影剂包括分散在熔点高于室温的电绝缘载体中的热塑性树脂和着色剂的调色剂颗粒,其中热塑性树脂在低于熔融温度的温度下不溶于电绝缘载体 点在电绝缘载体的熔点以上的温度下与电绝缘载体溶剂化。 本发明提供了一种用于静电摄影的显影剂,其能够减少蒸气的排放,以更高的速率进行定影处理,以减少定影处理所需的能量并且甚至在产生高质量图像之后 重复使用开发者。