Oxidative age resistance of surface oxidized roller
    2.
    发明公开
    Oxidative age resistance of surface oxidized roller 失效
    OxidationsalterungsbeständigeWalze mit oxidierterOberfläche

    公开(公告)号:EP0878748A1

    公开(公告)日:1998-11-18

    申请号:EP98303801.9

    申请日:1998-05-14

    IPC分类号: G03G15/08

    CPC分类号: G03G15/0818

    摘要: An electrophotographic developer roller is made by casting urethane prepolymer mixed with a polybutadiene, a trifunctional curative, ferric chloride powder, and an antioxidant. After curing, the roller is baked, which oxidizes the outer surface. The oxidized surface layer is electrically resistive, which is desirable in a developer roller. An excellent developer roller is achieved at low production cost. The antioxidant provides stable electrical characteristics over extended time periods.

    摘要翻译: 通过浇注与聚丁二烯,三官能固化剂,氯化铁粉末和抗氧化剂混合的氨基甲酸酯预聚物制成电子照相显影辊。 固化后,烘烤辊,使外表面氧化。 氧化的表面层是电阻的,这在显影辊中是期望的。 以低生产成本实现了优异的显影辊。 抗氧化剂在延长的时间内提供稳定的电气特性。

    Magenta dye, jet ink, and color set
    6.
    发明公开
    Magenta dye, jet ink, and color set 失效
    品红色染料的喷墨印刷油墨和彩色组。

    公开(公告)号:EP0602816A1

    公开(公告)日:1994-06-22

    申请号:EP93309508.5

    申请日:1993-11-29

    IPC分类号: C09B29/30 C09D11/16

    摘要: A water-soluble dye for a color subtractive, lightfast, wide spectrum ink as follows:

    wherein:

    X is


    R 1 is:

    an aliphatic radical having from 1 to 18 carbon atoms;
    the radical

    in which

    R 2 is -H, -lower alkyl of 1 to 4 C atoms,

    -lower alkoxy, -halogen, -N0 2
    -CN, -C0 2 H;

    R 3 is -H, -lower alkyl having 1 to 4 C atoms, -halogen, -C02H;
    M is H, Li, Na, K, -N(R 4 ) 4 in which R 4 is H,
    in which
    R 5 is -H, -lower alkyl, and n is 1 to 4; and in which

    one of the -SO 3 M groups on the amino-naphthol radical is positioned meta or para to the -NH-group and the other -SO 3 M is meta to the -OH, and the dye in a water and glycol vehicle. A dye set of this dye, Direct Blue 199, and Direct Yellow 132 provides a full color spectrum of bright, lightfast colors.

    Electrophotographic liquid developer with charge director
    7.
    发明公开
    Electrophotographic liquid developer with charge director 失效
    电子摄影师Flüssigentwicklerenthaltend ein Ladungsbestimmungsmittel。

    公开(公告)号:EP0568369A1

    公开(公告)日:1993-11-03

    申请号:EP93303361.5

    申请日:1993-04-29

    IPC分类号: G03G9/13

    摘要: A liquid toner having a mineral oil vehicle, a blend of Surlyn ionomeric resin and Nucrel resin, pigment and, as charge director, lecithin, N-methyl-2-pyrrolidone and calcium Petronate. The charge director optimizes speed of recovery of charge properties during continual use. The mineral oil does not vaporize well and is readily condensed, thus permitting use as a confined toner.

    摘要翻译: 具有矿物油载体,Surlyn离聚物树脂和Nucrel树脂的混合物,颜料和作为电荷导向剂卵磷脂,N-甲基-2-吡咯烷酮和石油酸钙的液体调色剂。 充电主管优化连续使用期间电荷恢复的速度。 矿物油不能很好地蒸发并容易冷凝,从而允许用作密闭的调色剂。