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131 条记录 (耗时 0.039 秒)

    Latex processes
    33.
    发明授权
    Latex processes 失效
    乳胶工艺

    公开(公告)号：US5928830A

    公开(公告)日：1999-07-27

    申请号：US31345

    申请日：1998-02-26

    申请人： Chieh-Min Cheng ,  Grazyna E. Kmiecik-Lawrynowicz

    发明人： Chieh-Min Cheng ,  Grazyna E. Kmiecik-Lawrynowicz

    IPC分类号： G03G9/093 ,  G03G9/087

    CPC分类号： G03G9/09392 ,  G03G9/09321 ,  G03G9/09364

    摘要： 1. A process for the preparation of a latex comprising a core polymer and a shell thereover and wherein said core polymer is generated by (A)(i) emulsification and heating of the polymerization reagents of monomer, chain transfer agent, water, surfactant, and initiator;(ii) generating a seed latex by the aqueous emulsion polymerization of a mixture comprised of part of the (i) monomer emulsion, from about 0.5 to about 50 percent by weight, and a free radical initiator, and which polymerization is accomplished by heating, and, wherein the reaction of the free radical initiator and monomer produces a seed latex containing a polymer;(iii) heating and adding to the formed seed particles of (ii) the remaining monomer emulsion of (I), from about 50 to about 99.5 percent by weight of monomer emulsion of (i) and free radical initiator;(iv) whereby there is provided said core polymer; and(B) forming a shell thereover said core generated polymer and which shell is generated by emulsion polymerization of a second monomer in the presence of the core polymer, which emulsion polymerization is accomplished by(i) emulsification and heating of the polymerization reagents of monomer, chain transfer agent, surfactant, and an initiator;(ii) adding a free radical initiator and heating;(iii) whereby there is provided said shell polymer.

    摘要翻译： 1.一种制备包含芯聚合物和其上的壳的胶乳的方法，其中所述芯聚合物通过（A）（i）乳化和加热单体，链转移剂，水，表面活性剂， 和引发剂; （ii）通过由（i）单体乳液的一部分（约0.5至约50重量％）和自由基引发剂组成的混合物的水乳液聚合产生种子胶乳，并且该聚合通过加热， 并且其中所述自由基引发剂和单体的反应产生含有聚合物的种子胶乳; （iii）加热并加入（ii）（I）的剩余单体乳液的形成的种子颗粒，约50至约99.5重量％的（i）的单体乳液和自由基引发剂; （iv）由此提供所述芯聚合物; 和（B）在所述芯产生的聚合物之上形成壳，并且在芯聚合物存在下通过第二单体的乳液聚合产生壳，该乳液聚合通过（i）乳化和加热单体的聚合试剂 链转移剂，表面活性剂和引发剂; （ii）加入自由基引发剂并加热; （iii）由此提供所述壳聚合物。

    Toner compositions and processes
    36.
    发明授权
    Toner compositions and processes 有权
    调色剂组成和工艺

    公开(公告)号：US08492066B2

    公开(公告)日：2013-07-23

    申请号：US13052385

    申请日：2011-03-21

    申请人： Zhen Lai ,  Chieh-Min Cheng

    发明人： Zhen Lai ,  Chieh-Min Cheng

    IPC分类号： G03G9/087

    CPC分类号： G03G9/0806 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09

    摘要： Processes for producing toners are provided. The processes include emulsion aggregation processes, whereby a reactive coalescent is utilized in the coalescence step to coalesce aggregated particles, thereby forming toner particles. The resulting toners may be highly pigmented, and may possess low melt characteristics.

    摘要翻译： 提供了生产调色剂的方法。 该方法包括乳液聚集方法，由此在聚结步骤中使用反应性聚结剂聚结聚集的颗粒，从而形成调色剂颗粒。 所得到的调色剂可能是高度着色的，并且可能具有低熔体特性。

    PROCESS OF MAKING POLYESTER LATEX WITH BUFFER
    38.
    发明申请
    PROCESS OF MAKING POLYESTER LATEX WITH BUFFER 有权
    制作涤纶短绒的方法

    公开(公告)号：US20130184392A1

    公开(公告)日：2013-07-18

    申请号：US13352871

    申请日：2012-01-18

    申请人： Zhen LAI ,  Chieh-Min Cheng

    发明人： Zhen LAI ,  Chieh-Min Cheng

    IPC分类号： C08K3/26

    CPC分类号： G03G9/0804 ,  C08J3/07 ,  C08J2367/02 ,  C08K3/26 ,  C08K2003/262 ,  G03G9/0806 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  C08L67/00

    摘要： Methods herein include mixing at least one polyester resin with at least one solvent to form a resin mixture, adding water to cause phase inversion and form a polyester latex, adding at least one buffering agent to the phase inverted mixture to stabilize the phase inverted mixture, and subsequent to the buffering agent addition, substantially removing the at least one solvent from the phase inverted mixture.

    摘要翻译： 本文的方法包括将至少一种聚酯树脂与至少一种溶剂混合以形成树脂混合物，加入水引起相转化并形成聚酯胶乳，向相转化的混合物中加入至少一种缓冲剂以稳定相转化的混合物， 并且在缓冲剂添加之后，基本上从反相混合物中除去至少一种溶剂。

    Solvent-free emulsion process using acoustic mixing
    39.
    发明授权
    Solvent-free emulsion process using acoustic mixing 有权
    无溶剂乳液法使用声学混合

    公开(公告)号：US08435714B2

    公开(公告)日：2013-05-07

    申请号：US12823446

    申请日：2010-06-25

    申请人： Zhen Lai ,  Chieh-Min Cheng ,  Shigang Qiu ,  Emily L. Moore ,  Tie Hwee Ng

    发明人： Zhen Lai ,  Chieh-Min Cheng ,  Shigang Qiu ,  Emily L. Moore ,  Tie Hwee Ng

    IPC分类号： G03G9/08

    CPC分类号： C08J3/12 ,  C08J3/05 ,  C08J2367/06 ,  G03G9/0804 ,  G03G9/081 ,  G03G9/0819 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

    摘要： A process for making toner particles is provided. In embodiments, a suitable process includes melt mixing a resin in the absence of an organic solvent, optionally adding a surfactant to the resin, adding to the resin at least one colorant and other optional toner additives, adding to the resin a basic agent and water to form a mixture, and subjecting the mixture to acoustic mixing at a suitable frequency to form to form an emulsion. A phase inversion may then be performed to create a phase inversed emulsion including a disperse phase comprising molten resin and the optional ingredients of the toner composition, at which time toner-sized droplets may be solidified from the disperse phase into toner particles, which can be recovered for use.

    摘要翻译： 提供了制备调色剂颗粒的方法。 在实施方案中，合适的方法包括在不存在有机溶剂的情况下熔融混合树脂，任选地向树脂中加入表面活性剂，向树脂中加入至少一种着色剂和其它任选的调色剂添加剂，向树脂中加入碱性试剂和水 以形成混合物，并使混合物以合适的频率进行声学混合以形成乳液。 然后可以进行相转化以产生反相乳液，其包括包含熔融树脂的分散相和调色剂组合物的任选成分，此时调色剂大小的液滴可以从分散相固化成调色剂颗粒，其可以是 恢复使用。