Latex processes
    12.
    发明授权
    Latex processes 失效
    乳胶工艺

    公开(公告)号:US5847030A

    公开(公告)日:1998-12-08

    申请号:US691770

    申请日:1996-08-02

    IPC分类号: C08F2/24 G03G9/08 C08J3/03

    CPC分类号: G03G9/0806 C08F2/24

    摘要: A process for the preparation of polymer latex particles by conducting a pre-reaction emulsification with monomer, polar comonomer, water, surfactant, chain transfer agent, and initiator; and which pre-reaction emulsification is effected at a low temperature of from about 3.degree. C. to about 35.degree. C., for example, and thereafter, effecting emulsion polymerization by heating the aforementioned emulsified mixture in a reactor at a temperature of from about 25.degree. C. to about 125.degree. C. The aforementioned reactor contents are retained at this temperature, that is 25.degree. C. to 125.degree. C. for an effective time period. Thereafter, the reaction mixture is cooled.

    摘要翻译: 通过与单体,极性共聚单体,水,表面活性剂,链转移剂和引发剂进行预反应乳化来制备聚合物胶乳颗粒的方法; 并且在例如约3℃至约35℃的低温下进行预反应乳化,此后,通过在反应器中将上述乳化混合物在约 25℃至约125℃。上述反应器内容物在该温度下保持25℃至125℃,持续有效时间。 此后,将反应混合物冷却。

    Process for the continuous preparation of encapsulated toner
    17.
    发明授权
    Process for the continuous preparation of encapsulated toner 失效
    用于连续制备包封的调色剂的方法

    公开(公告)号:US5264315A

    公开(公告)日:1993-11-23

    申请号:US871156

    申请日:1992-04-20

    摘要: A process for the continuous preparation of an encapsulated toner comprised of a core comprised of polymer and pigment encapsulated within a polymer shell, which process comprises continuously separately feeding an oil phase containing core monomers, oil soluble shell monomers and pigment and an aqueous phase containing surfactant into a continuous flowthrough mixing tank; homogenizing the aforementioned two phases to enable small oil droplets with an average diameter of from between about 3 to about 25 microns; overflowing the resulting droplets to at least one continuously stirred tank reactor while simultaneously feeding water soluble shell monomer to said stirred reactor to effect interfacial polymerization thereby causing shell formation; and thereafter allowing the encapsulated droplets to flow into a reactor or reactors and heating the reactor or reactors to effect free radical polymerization of the core monomers, followed by cooling, and isolating the said encapsulated toner.

    摘要翻译: 用于连续制备包封的调色剂的方法包括由包封在聚合物外壳内的聚合物和颜料组成的芯,该方法包括连续分别进料含有核心单体,油溶性壳单体和颜料的油相和含水相的表面活性剂 进入连续流通的混合罐; 均化上述两相以使平均直径为约3至约25微米的小油滴; 将所得液滴溢流到至少一个连续搅拌的罐式反应器中,同时将水溶性壳单体加入到所述搅拌反应器中以进行界面聚合从而导致壳形成; 然后允许包封的液滴流入反应器或反应器并加热反应器或反应器以实现核心单体的自由基聚合,然后冷却,并分离所述包封的调色剂。

    Processes for encapsulated toners
    18.
    发明授权
    Processes for encapsulated toners 失效
    封装调色剂的方法

    公开(公告)号:US5153092A

    公开(公告)日:1992-10-06

    申请号:US646914

    申请日:1991-01-28

    IPC分类号: G03G9/08 G03G9/087 G03G9/093

    摘要: A process for the preparation of encapsulated toners which comprises blending core momomer or monomers, free radical initiator, pigment, and an oil soluble shell monomer; dispersing the resulting mixture in a stabilized aqueous suspension; thereafter subjecting the stabilized droplets to a shell forming interfacial polycondensation reaction by adding a water soluble shell monomer or monomers; subsequently forming the core resin binder by heat induced free radical polymerization within the newly formed capsules; washing the toner suspension; subsequently removing water therefrom in a fluidized bed dryer to obtain a dry encapsulated toner with a surface moisture content of about 0.3 percent by weight to about 0.8 percent by weight; and thereafter blending the encapsulated toner with surface additives.

    摘要翻译: 一种制备包封的调色剂的方法,包括混合核心单体或单体,自由基引发剂,颜料和油溶性壳单体; 将所得混合物分散在稳定的水性悬浮液中; 然后通过加入水溶性壳单体或单体使稳定的液滴经壳形成界面缩聚反应; 随后在新形成的胶囊内通过热诱导的自由基聚合形成核心树脂粘合剂; 清洗调色剂悬浮液; 随后在流化床干燥器中从其中除去水,得到表面含水量为约0.3重量%至约0.8重量%的干燥包封调色剂; 然后将包封的调色剂与表面添加剂混合。