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    • 7. 发明授权
    • Dry developer for electrostatic image with Al or Ti alkoxide
    • 用Al或Ti醇盐静电显影的干燥显影剂
    • US4409312A
    • 1983-10-11
    • US351445
    • 1982-02-23
    • Toshimitsu IkedaNobuyasu HondaTetsuya Nakano
    • Toshimitsu IkedaNobuyasu HondaTetsuya Nakano
    • G03G9/087G03G9/097G03G9/08G03G9/14
    • G03G9/08753G03G9/08793G03G9/09783
    • Disclosed is a dry developer for an electrostatic image, which comprises molded particles of a dispersion of a binder medium, a wax and a pigment, wherein a combination or partial reaction product of (A) a copolymer of an olefin with a polar group-containing, ethylenically unsaturated monomer and (B) a metal alkoxide of aluminum or titanium is incorporated as a crosslinking agent into said molded particles.In this dry developer, the mutual dispersibility of the respective developer components is highly improved, and the developer particles are uniform and homogeneous in the composition.This dry developer for an electrostatic image is prepared by a process which comprises kneading a mixture of a binder resin, a wax and a pigment at a temperature higher than the softening points of the binder resin and wax and molding the kneaded composition into fine particles, wherein prior to, simultaneously with or after addition of the pigment, a combination or partial reaction product of (A) a copolymer of an olefin with a polar group-containing, ethylenically unsaturated monomer and (B) a metal alkoxide of aluminum or titanium is incorporated into the binder resin and wax and the composition is reacted in the molten state.
    • 公开了一种用于静电图像的干燥显影剂,其包括粘合剂介质,蜡和颜料的分散体的模制颗粒,其中(A)烯烃与极性基团的共聚物的组合或部分反应产物 ,烯键式不饱和单体和(B)铝或钛的金属醇盐作为交联剂引入所述​​模塑颗粒中。 在这种干燥显影剂中,各显影剂组分的相互分散性大大提高,并且显影剂颗粒在组合物中均匀且均匀。 该静电图像用干燥显影剂通过以下方法制备,该方法包括在高于粘合剂树脂和蜡的软化点的温度下捏合粘合剂树脂,蜡和颜料的混合物,并将捏合的组合物模塑成细颗粒, 其中在添加颜料之前,同时或之后,(A)烯烃与含极性基团的烯属不饱和单体的共聚物和(B)铝或钛的金属醇盐的组合或部分反应产物是 掺入粘合剂树脂和蜡中,并且组合物在熔融状态下反应。