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    Liquid toners with hydrocarbon solvents
    4.
    发明授权
    Liquid toners with hydrocarbon solvents 失效
    具有碳氢化合物溶剂的液体调色剂

    公开(公告)号：US5919866A

    公开(公告)日：1999-07-06

    申请号：US20601

    申请日：1998-02-09

    Applicant: Prabhakara S. Rao ,  Valdis Mikelsons

    Inventor： Prabhakara S. Rao ,  Valdis Mikelsons

    IPC: C08F290/04 ,  G03G9/13 ,  G03G9/135 ,  C08F259/00

    CPC classification number: G03G9/133 ,  C08F290/04 ,  C08F290/046 ,  G03G9/1355

    Abstract: The toner particles of this invention comprise pigment and a resin. The resin comprises a novel polymer formed from ethylenically unsaturated monomers, macromeric moieties that render the resin dispersible in hydrocarbon solvents, and a surface-release promoting moiety. When used for toner particles the polymer further comprises charge directing chelating moieties. The toner particles also include a charge director, preferably a metal cation. The toner particles, when dispersed in a carrier liquid, are useful as liquid toners for electrographic or electrophotographic processes.

    Abstract translation: 本发明的调色剂颗粒包含颜料和树脂。 树脂包括由烯键式不饱和单体形成的新型聚合物，使树脂在烃溶剂中分散的大分子部分和表面释放促进部分。 当用于调色剂颗粒时，聚合物还包含电荷引导螯合部分。 调色剂颗粒还包括电荷导向剂，优选金属阳离子。 当分散在载体液体中时，调色剂颗粒可用作电刻或电子照相工艺的液体调色剂。

    Liquid toners for use with perfluorinated solvents
    5.
    发明授权
    Liquid toners for use with perfluorinated solvents 失效
    用于全氟化溶剂的液体调色剂

    公开(公告)号：US5397669A

    公开(公告)日：1995-03-14

    申请号：US185198

    申请日：1994-01-24

    Applicant: Prabhakara S. Rao

    Inventor： Prabhakara S. Rao

    IPC: G03G9/12 ,  G03G9/125 ,  G03G9/13 ,  G03G9/087 ,  C08F16/00 ,  C08K5/02

    CPC classification number: G03G9/125 ,  G03G9/131

    Abstract: An electrostatic liquid toner imaging process uses a liquid toner comprises a perfluorinated solvent and polymer resin-bound pigment particles. The polymer resin is preferably a resin containing highly fluorinated or perfluorinated units within the polymer resin or a resin comprising of at least 10% perfluorinated units, the rest comprising nonfluorinated units.

    Abstract translation: 静电液体调色剂成像方法使用包含全氟化溶剂和聚合物树脂结合颜料颗粒的液体调色剂。 聚合物树脂优选是在聚合物树脂内含有高度氟化或全氟化单元的树脂或包含至少10％全氟化单元的树脂，其余包含非氟化单元。

    INK FORMULATION AND WRITING INSTRUMENT
    8.
    发明申请
    INK FORMULATION AND WRITING INSTRUMENT 审中-公开
    墨水制剂和书写仪器

    公开(公告)号：US20100254745A1

    公开(公告)日：2010-10-07

    申请号：US12752857

    申请日：2010-04-01

    Applicant: Prabhakara S. RAO

    Inventor： Prabhakara S. RAO

    IPC: A46B5/02 ,  C08L99/00 ,  C08K5/3415 ,  C08K5/10 ,  C08K5/20 ,  C08K5/07

    CPC classification number: C08L99/00 ,  C09D11/16

    Abstract: Ink formulation comprising liquid medium and colorant dispersed in the liquid medium wherein the liquid medium comprises an unsaturated resin derived from natural sources. Also, writing instruments containing such ink formulation.

    Abstract translation: 包含分散在液体介质中的液体介质和着色剂的油墨制剂，其中液体介质包含衍生自天然来源的不饱和树脂。 另外，书写包含这种墨水配方的工具。

    Azlactone-based surfactants
    9.
    发明授权
    Azlactone-based surfactants 失效
    基于吖内酯的表面活性剂

    公开(公告)号：US5714632A

    公开(公告)日：1998-02-03

    申请号：US558003

    申请日：1995-11-13

    Applicant: Prabhakara S. Rao ,  Larry R. Krepski ,  Terrance P. Smith

    Inventor： Prabhakara S. Rao ,  Larry R. Krepski ,  Terrance P. Smith

    IPC: B01F17/00 ,  B01F17/22 ,  C07C237/22 ,  C07C229/00

    CPC classification number: C07C237/22 ,  B01F17/0042

    Abstract: A compound of the formula ##STR1## wherein Q is an organic group of at least two carbon atoms having at least m substituents, m is 1, 2, 3, 4, 5 or 6, and n is 0 or 1. R.sup.3 is H or methyl, R.sup.8 and R.sup.9 are independently hydrogen, alkyl group or aryl, R.sup.12 and R.sup.13 are independently selected from the group consisting of an alkyl group or a cation, and R.sup.10 is independently selected from the group consisting of hydrogen, an alkyl group, aryl group, and highly-fluorinated alkyl group, R.sup.4 may be hydrogen or alkyl group, and R.sup.7 may be hydrogen or lower alkyl group, provides excellent stability to dispersions.

    Abstract translation: 其中Q是至少两个具有至少m个取代基的碳原子的有机基团，其中m为1,2,3,4,5或6，n为0或1. R3为H 或甲基，R 8和R 9独立地为氢，烷基或芳基，R 12和R 13独立地选自烷基或阳离子，R 10独立地选自氢，烷基，芳基 基团和高度氟化的烷基，R 4可以是氢或烷基，并且R 7可以是氢或低级烷基，为分散体提供优异的稳定性。

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