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    HYDROPHOBIERTE SALZE SCHICHTARTIGER METALLHYDROXIDE
    4.
    发明授权
    HYDROPHOBIERTE SALZE SCHICHTARTIGER METALLHYDROXIDE 有权
    疏水SALTS层状金属

    公开(公告)号：EP1758958B1

    公开(公告)日：2008-04-23

    申请号：EP05747776.2

    申请日：2005-05-06

    申请人： Clariant Produkte (Deutschland) GmbH

    发明人： MICHEL, Eduard

    IPC分类号： C09C1/40 ,  G03G9/097 ,  C01F7/00 ,  C09D5/03

    CPC分类号： G03G9/09716 ,  C01F7/005 ,  C01P2002/22 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/60 ,  C01P2006/82 ,  C08K9/04 ,  C09C1/40 ,  C09D5/034 ,  G03G9/09708 ,  G03G9/0975 ,  G03G9/09783 ,  G03G9/09791

    摘要： The invention relates to hydrophobic salts of layered metal hydroxides, which can be obtained by adding one or more hydrophobic compounds from the group containing waxes and metallic soaps to a layered metal hydroxide salt in dispersion with intensive mixing, in a quantity of between 0.2 and 200 wt. % in relation to said metal hydroxide salt, the latter containing trivalent, bivalent and optionally monovalent metal cations and one or more organic anions A of formula (I) X-R-Y. In said formula: X represents hydrogen, hydroxy, carboxy, sulphato or sulpho; Y represents carboxy, sulphato or sulpho; and R represents an aliphatic, cycloaliphatic, heterocycloaliphatic, olefinic, cycloolefinic, heterocycloolefinic, aromatic, heteroaromatic, araliphatic or heteroaraliphatic group comprising between 2 and 50 C-atoms, whereby said group can contain one or more substituents from the group comprising hydroxy, amino, halogen, C1-C22 alkyl, C1-C22 alkoxy, C1-C22 alkene-(CO)-O-(CH2CH2O)0-50-alkyl, C1-C22 alkene-(CO)-O-(CH2CH2O)0-50-haloalkyl, carboxy, sulpho, nitro or cyano. The liquid medium is then optionally removed, dried and isolated to produce a powder. The inventive compounds are used as electrostatic charge control agents, in particular in the field of electrophotography.

    Toner and developer for magnetic brush development system
    6.
    发明公开
    Toner and developer for magnetic brush development system 有权
    Toner und EntwicklerfürMagnetbürstenentwicklung

    公开(公告)号：EP1132780A1

    公开(公告)日：2001-09-12

    申请号：EP01105164.6

    申请日：2001-03-02

    申请人： Xerox Corporation

    发明人： Gutman, Edward J. ,  Ferguson, Barbara M.

    IPC分类号： G03G9/08 ,  G03G9/087

    CPC分类号： G03G9/09783 ,  G03G9/0823 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09708 ,  G03G9/09725 ,  G03G9/09791

    摘要： A toner of toner particles containing at least one binder, at least one colorant, and preferably one or more external additives is advantageously formed into a developer and used in a magnetic brush development system to achieve consistent, high quality copy images. The toner particles, following triboelectric contact with carrier particles, exhibit a charge per particle diameter (Q/D) of from 0.6 to 0.9 fC/µm and a triboelectric charge of from 20 to 25 µC/g. The toner particles preferably have an average particle diameter of from 7.8 to 8.3 microns. The toner is combined with carrier particles to achieve a developer, the carrier particles preferably having an average diameter of from 45 to 55 microns and including a core of ferrite substantially free of copper and zinc coated with a coating comprising a polyvinylidenefluoride polymer or copolymer and a polymethyl methacrylate polymer or copolymer.

    摘要翻译： 含有至少一种粘合剂，至少一种着色剂，优选一种或多种外部添加剂的调色剂颗粒的调色剂有利地形成显影剂，并用于磁刷显影系统中以实现一致的高质量复印图像。 调色剂颗粒与载体颗粒摩擦接触后，每粒径（Q / D）为0.6-0.9fC /μm，摩擦电荷为20至25μC/ g。 调色剂颗粒的平均粒径优选为7.8至8.3微米。 调色剂与载体颗粒结合以实现显影剂，载体颗粒优选具有45至55微米的平均直径，并且包括基本上不含铜和锌的铁氧体芯，其涂覆有包含聚偏二氟乙烯聚合物或共聚物的涂层和 聚甲基丙烯酸甲酯聚合物或共聚物。