中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

9 records (took 0.017 seconds)

    Toner Process Employing Dual Chelating Agents
    3.
    发明申请
    Toner Process Employing Dual Chelating Agents 审中-公开

    公开(公告)号：US20200225598A1

    公开(公告)日：2020-07-16

    申请号：US16246898

    申请日：2019-01-14

    Applicant: Xerox Corporation

    Inventor： Shivanthi Easwari Sriskandha ,  Richard P. N. Veregin ,  Guerino G. Sacripante ,  Edward G. Zwartz ,  Michael Steven Hawkins

    IPC: G03G9/097 ,  G03G9/08 ,  G03G9/087 ,  G03G9/093 ,  G03G15/08

    Abstract: A toner process including a) mixing reagents comprising at least one amorphous resin, an optional crystalline resin, an optional styrene, acrylate or styrene/acrylate, an optional wax, and an optional colorant to form an emulsion comprising a resin particle; b) adding at least one aggregating agent and aggregating said resin particle to form a nascent toner particle; c) optionally, adding one or more resins to form a shell on said nascent toner particle to yield a core-shell particle; d) adding a first chelating agent and a second chelating agent; wherein said first chelating agent and said second chelating agent are different; e) freezing particle growth to form an aggregated toner particle; f) coalescing said aggregated toner particle to form a toner particle; and g) optionally, collecting said toner particle.

    Non-bisphenol-A emulsion aggregation toner and process
    6.
    发明授权
    Non-bisphenol-A emulsion aggregation toner and process 有权

    公开(公告)号：US10539896B1

    公开(公告)日：2020-01-21

    申请号：US16247245

    申请日：2019-01-14

    Applicant: Xerox Corporation

    Inventor： Kimberly D. Nosella ,  Guerino G. Sacripante ,  Edward G. Zwartz ,  Michael Steven Hawkins

    IPC: G03G9/08 ,  G03G9/087 ,  G03G9/093

    Abstract: A toner composition including an amorphous polyester resin; a crystalline polyester resin; a styrene acrylate copolymer; an optional wax; and an optional colorant; wherein the amorphous polyester resin comprises a rosin monomer content of from about 10 to about 25 percent rosin monomer based upon the total amount of monomer comprising the amorphous polyester resin. A toner composition including a core and at least one shell disposed thereover. A toner process including contacting an amorphous polyester resin; a crystalline polyester resin; a styrene acrylate copolymer; an optional wax; an optional colorant; and an optional aggregating agent; wherein the amorphous polyester resin comprises a rosin monomer content of from about 10 to about 25 percent rosin monomer heating to form aggregated toner particles; optionally, adding a shell resin to the aggregated toner particles, heating to coalesce the particles; and recovering the toner particles.

    Toner process employing dual chelating agents
    7.
    发明授权
    Toner process employing dual chelating agents 有权

    公开(公告)号：US11048184B2

    公开(公告)日：2021-06-29

    申请号：US16246898

    申请日：2019-01-14

    Applicant: Xerox Corporation

    Inventor： Shivanthi Easwari Sriskandha ,  Richard P. N. Veregin ,  Guerino G. Sacripante ,  Edward G. Zwartz ,  Michael Steven Hawkins

    IPC: G03G9/08 ,  G03G9/093 ,  G03G9/097 ,  G03G15/08 ,  G03G9/087

    Abstract: A toner process including a) mixing reagents comprising at least one amorphous resin, an optional crystalline resin, an optional styrene, acrylate or styrene/acrylate, an optional wax, and an optional colorant to form an emulsion comprising a resin particle; b) adding at least one aggregating agent and aggregating said resin particle to form a nascent toner particle; c) optionally, adding one or more resins to form a shell on said nascent toner particle to yield a core-shell particle; d) adding a first chelating agent and a second chelating agent; wherein said first chelating agent and said second chelating agent are different; e) freezing particle growth to form an aggregated toner particle; f) coalescing said aggregated toner particle to form a toner particle; and g) optionally, collecting said toner particle.

Patent Agency Ranking