Toner for electrophotography
    1.
    发明授权
    Toner for electrophotography 失效
    电子照相用碳粉

    公开(公告)号:US4968574A

    公开(公告)日:1990-11-06

    申请号:US817768

    申请日:1986-01-09

    IPC分类号: G03G9/087

    摘要: The present invention relates to toners for electrophotography wherein the main resin component comprises a lower molecular weight polymer and a higher molecular weight polymer each of which is different from the other wherein the higher molecular weight polymer has a glass transition point of at least 50.degree. C. and the lower molecular weight polymer has a glass transition point no higher than 65.degree. C. The above polymers comprise one or more polymers selected from styrene polymers, arcylic polymers, and styrene-acrylic copolymers. Generally, the lower molecular weight polymer has a weight average molecular weight of 50,000 or less and the higher molecular weight polymer has a weight average molecular weight of 80,000 or more.

    摘要翻译: 本发明涉及电子照相用调色剂,其中主要树脂组分包含较低分子量聚合物和较高分子量聚合物,每种聚合物与另一种不同,其中较高分子量聚合物的玻璃化转变点至少为50℃ 并且较低分子量的聚合物具有不高于65℃的玻璃化转变点。上述聚合物包含一种或多种选自苯乙烯聚合物,芳族聚合物和苯乙烯 - 丙烯酸共聚物的聚合物。 通常,低分子量聚合物的重均分子量为50,000以下,高分子量聚合物的重均分子量为80,000以上。