MAGNETIC TONER COMPOSITIONS
    6.
    发明申请
    MAGNETIC TONER COMPOSITIONS 审中-公开
    磁性组合物

    公开(公告)号:US20120070770A1

    公开(公告)日:2012-03-22

    申请号:US12886825

    申请日:2010-09-21

    IPC分类号: G03G9/083

    摘要: The present disclosure relates to a magnetic toner composition. The toner composition includes one or more resins, and spherical ferromagnetic nanoparticles. Also provided is a process for preparing these toners including ferromagnetic nanoparticles. In embodiments, the aggregation of the toner is conducted at a pH greater than about 7, without the use of a coagulant. Additionally, in embodiments, freezing (stopping particle growth) and coalescence of the toner particles may be conducted at a pH greater than about 9. In yet other embodiments, the process may be conducted under an inert gas such as argon to avoid oxidation of the ferromagnetic nanoparticles during toner preparation.

    摘要翻译: 本发明涉及磁性调色剂组合物。 调色剂组合物包括一种或多种树脂和球形铁磁性纳米粒子。 还提供了制备包括铁磁性纳米颗粒的这些调色剂的方法。 在实施方案中,调色剂的聚集在大于约7的pH下进行,而不使用凝结剂。 此外,在实施方案中,调色剂颗粒的冷冻(停止颗粒生长)和聚结可以在大于约9的pH下进行。在其它实施方案中,该方法可以在惰性气体例如氩气下进行,以避免氧化 调色剂制备过程中的铁磁性纳米粒子。

    Toner having bumpy surface morphology
    7.
    发明授权
    Toner having bumpy surface morphology 有权
    调色剂具有颠簸的表面形态

    公开(公告)号:US07662531B2

    公开(公告)日:2010-02-16

    申请号:US11228300

    申请日:2005-09-19

    IPC分类号: G03G9/093

    摘要: The toner described herein contains toner particles containing polymer, colorant and cross-linked polymer. The cross-linked polymer is incorporated at least in the shell of the toner particles. Incorporating cross-linked polymer in the shell of the toner particles provide bumps in the surface of the toner particles. These bumps can behave as spacers. Such toner can be formed by aggregating at least polymer particles and colorant particles to form core particles; aggregating at least cross-linked polymer particles to the surface of the core particles; and coalescing the resulting particles to form toner particles.

    摘要翻译: 本文所述的调色剂含有含有聚合物,着色剂和交联聚合物的调色剂颗粒。 交联聚合物至少并入至调色剂颗粒的壳中。 将交联聚合物掺入调色剂颗粒的壳体中在调色剂颗粒的表面提供凸起。 这些凸起可以作为间隔物。 这样的调色剂可以通过至少聚集聚合物颗粒和着色剂颗粒以形成核心颗粒而形成; 将至少交联的聚合物颗粒聚集到芯颗粒的表面; 并将所得颗粒聚结形成调色剂颗粒。