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    Toner containing resin prepared by a combination of emulsion followed by suspension polymerization
    3.
    发明授权
    Toner containing resin prepared by a combination of emulsion followed by suspension polymerization 失效
    通过乳液组合制备的含有调色剂的树脂，然后进行悬浮聚合

    公开(公告)号：US06258504B1

    公开(公告)日：2001-07-10

    申请号：US09417430

    申请日：1999-10-13

    申请人： Jan Bartus ,  Robert Janules ,  James Boswell ,  Jeffrey Clark

    发明人： Jan Bartus ,  Robert Janules ,  James Boswell ,  Jeffrey Clark

    IPC分类号： G03G500

    CPC分类号： G03G9/08702 ,  G03G9/08795 ,  G03G9/08797

    摘要： A method for preparing thermoplastic toner resins is disclosed and the toner resins produced by said method. More particularly, an emulsion polymerized resin, constituting a high molecular weight component, is used as a seed for subsequent suspension polymerization of a lower molecular weight component. The emulsion micelles are swelled with monomers and subsequent suspension polymerization produces particles where the high and low molecular weight components are interpenetrated to form a resin with a bimodal distribution of molecular weight. A toner composition is made using the resin as the main component. The resin particle has a first resin portion having a particle size in the range of about 50 to about 200 nm. and a number average molecular weight in the range of about 104 to about 107, and a second resin portion formed around the first resin portion with a number average molecular weight lower than that of said first resin portion, the resin having a polydispersity in the range of 5 to 50.

    摘要翻译： 公开了制备热塑性调色剂树脂的方法和通过所述方法制备的调色剂树脂。 更具体地，使用构成高分子量组分的乳液聚合树脂作为用于随后的低分子量组分的悬浮聚合的种子。 乳液胶束用单体溶胀，随后的悬浮聚合产生颗粒，其中高分子量组分和低分子量组分互穿形成具有分子量双峰分布的树脂。 使用树脂作为主要成分制成调色剂组合物。 树脂颗粒具有粒径在约50至约200nm范围内的第一树脂部分。 数均分子量在约104至约107的范围内，第二树脂部分形成在第一树脂部分周围，数均分子量低于所述第一树脂部分的数均分子量，该树脂的多分散性在该范围内 为5至50。

    Electrophotographic carrier comprising a coating of a grafted fluoropolymer
    6.
    发明授权
    Electrophotographic carrier comprising a coating of a grafted fluoropolymer 失效
    包含接枝的含氟聚合物涂层的电子照相载体

    公开(公告)号：US6124069A

    公开(公告)日：2000-09-26

    申请号：US318085

    申请日：1999-05-25

    申请人： Jan Bartus ,  Wilfred Emerson Vail

    发明人： Jan Bartus ,  Wilfred Emerson Vail

    IPC分类号： G03G9/107 ,  G03G9/113

    CPC分类号： G03G9/1134 ,  G03G9/1075

    摘要： A carrier composition is provided for electrophotographic development. Core particles are coated with a graft copolymer of a fluoropolymer and methyl methacrylate. The core particles preferably are a material selected from steel, nickel, iron, ferrites, passivated iron, or mixtures or alloys thereof. The fluoropolymer preferably is a polymer selected from chlorotrifluoroethylene, polyvinylidene fluoride, polytrifluoroethylene, polytetrafluoroethylene, copolymers of vinylidene fluoride and hexafluoropropylene, and copolymers of vinylidene fluoride and tetrafluoroethylene. In a preferred carrier composition, the coating consists of two layers. The exterior layer is a graft copolymer made of a fluoropolymer and methyl methacrylate.

    摘要翻译： 提供用于电子照相显影的载体组合物。 核心颗粒用含氟聚合物和甲基丙烯酸甲酯的接枝共聚物涂覆。 核心颗粒优选为选自钢，镍，铁，铁素体，钝化铁或其混合物或合金的材料。 含氟聚合物优选为选自三氟氯乙烯，聚偏二氟乙烯，三氟氯乙烯，聚四氟乙烯，偏二氟乙烯和六氟丙烯的共聚物，偏二氟乙烯和四氟乙烯的共聚物的聚合物。 在优选的载体组合物中，涂层由两层组成。 外层是由含氟聚合物和甲基丙烯酸甲酯制成的接枝共聚物。