Aggregation processes
    98.
    发明授权
    Aggregation processes 失效
    汇总流程

    公开(公告)号:US5744520A

    公开(公告)日:1998-04-28

    申请号:US684955

    申请日:1996-07-19

    摘要: A process for the preparation of polymer compositions which comprises mixing a conductive component with an anionic polymeric latex containing a polymer; adding a cationic surfactant, or flocculant whereby the aggregation of the latex particles and the conductive component particles results; subsequently adding colloidal stabilizer, followed by the addition of a base to obtain a pH of from about 7 to about 12; heating above about the polymer glass transition temperature thereby enabling the severage, or breakage of the formed aggregated particles; further heating above about the polymer glass transition temperature enabling the coalescence of the polymer and conductive component particles; and optionally washing and drying the resulting coalesced product.

    摘要翻译: 一种制备聚合物组合物的方法,其包括将导电组分与含有聚合物的阴离子聚合物胶乳混合; 加入阳离子表面活性剂或絮凝剂,由此导致胶乳颗粒和导电组分颗粒的聚集; 随后加入胶体稳定剂,然后加入碱以获得约7至约12的pH; 加热高于聚合物玻璃化转变温度,从而能够形成聚集的颗粒的覆盖或破裂; 进一步加热高于聚合物玻璃化转变温度,使聚合物和导电组分颗粒聚结; 并任选地洗涤和干燥所得的聚结产物。

    Polymerization processes and toner compositions therefrom
    100.
    发明授权
    Polymerization processes and toner compositions therefrom 失效
    聚合方法和调色剂组合物

    公开(公告)号:US5322912A

    公开(公告)日:1994-06-21

    申请号:US976604

    申请日:1992-11-16

    摘要: Disclosed is a free radical polymerization process for the preparation of a thermoplastic resin or resins comprising heating a mixture of a free radical initiator, a stable free radical agent, and at least one polymerizable monomer compound to form a thermoplastic resin or resins with a high monomer to polymer conversion; cooling said mixture; optionally isolating the thermoplastic resin or resins; and optionally washing and drying thermoplastic resin or resins.Related free radical processes are also disclosed for the preparation of mixtures and block copolymer thermoplastic resins. Resins prepared by the disclosed processes possesses a narrow polydispersity and a modality that is controlled by the selection of a free radical initiator and stable free radical agent addition step or steps.

    摘要翻译: 公开了一种用于制备热塑性树脂或树脂的自由基聚合方法,包括加热自由基引发剂,稳定自由基和至少一种可聚合单体化合物的混合物以形成具有高单体的热塑性树脂或树脂 聚合物转化; 冷却混合物; 任选地分离热塑性树脂或树脂; 并任选地洗涤和干燥热塑性树脂或树脂。 还公开了相关的自由基方法用于制备混合物和嵌段共聚物热塑性树脂。 通过公开的方法制备的树脂具有窄的多分散性和通过选择自由基引发剂和稳定的自由基添加步骤控制的形态。