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1.发明专利
公开(公告)号：CA2563138C
公开(公告)日：2012-02-21
申请号：CA2563138
申请日：2006-10-11
Applicant: XEROX CORP
Inventor： SANDERS DAVID J , CHEN ALLAN K , PATEL RAJ D , VANBESIEN DARYL W
Abstract: The toner includes emulsion aggregation toner particles of a binder including a non-crosslinked styrene acrylate polymer, at least one colorant, at least one wax, and aluminized silica, wherein an amount of aluminum metal in the toner particles is from about 50 ppm to about 600 ppm. Such toner is able to provide a high level of gloss while maintaining a low minimum fixing temperature. The aluminized silica acts as a coagulant during the emulsion aggregation formation process of the toner.
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公开(公告)号：CA2585680C
公开(公告)日：2011-04-05
申请号：CA2585680
申请日：2007-04-19
Applicant: XEROX CORP
Inventor： FARRUGIA VALERIE M , PATEL RAJ D , HAWKINS MICHAEL S
Abstract: A toner composition includes toner particles including a polymeric resin, a colorant, a wax, and an optional coagulant, and a coagulant applied as a surface additive to a surface of the toner particles to alter a triboelectric charge of the toner particles.
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公开(公告)号：CA2567262C
公开(公告)日：2010-08-31
申请号：CA2567262
申请日：2006-11-07
Applicant: XEROX CORP
Inventor： PATEL RAJ D , SANDERS DAVID J , NG TIE HWEE , DRAPPEL STEPHAN V , GARDNER SANDRA J , HADZIDEDIC SONJA , ISGANITIS LOUIS V , LINCOLN TIMOTHY L , MARCELL KEVIN F
Abstract: Embodiments include a fractionated and/or distilled wax having from about 30 to about 64 carbon units, a degree of crystallinity as calculated by heat of melting and as measured by DSC of from about 55 to about 100, a Mw is from about 500 to about 800, and a polydispersity of from about 1 to about 1.05.
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公开(公告)号：CA2541183C
公开(公告)日：2010-05-11
申请号：CA2541183
申请日：2006-03-24
Applicant: XEROX CORP
Inventor： PATEL RAJ D , HAWKINS MICHAEL S , GERROIR PAUL J , VEREGIN RICHARD P N
IPC: G03G9/08
Abstract: A process including mixing a sulfonated polyester resin, a colorant, and a coagulant; heating the resulting sulfonated polyester mixture; adding a polymetal halide and an anionic latex to form coated toner particles; and heating the coated toner particles is disclosed.
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公开(公告)号：CA2541055C
公开(公告)日：2009-12-22
申请号：CA2541055
申请日：2006-03-24
Applicant: XEROX CORP
Inventor： NOSELLA KIMBERLY D , PATEL RAJ D , FARRUGIA VALERIE M , CHEN ALLAN K , NG T HWEE
IPC: G03G9/08
Abstract: A method of making particles suitable for use as toners includes forming a mixture of sulfonated polyester resin, a colorant dispersion and optionally a wax dispersion, homogenizing the mixture, adding a coagulant to the mixture to aggregate the mixture to form aggregated particles, and coalescing the aggregated particles to form coalesced particles. In the method, when a predetermined average particle size is achieved during th e aggregation and/or coalescing step, a complexing agent that complexes with ions of the coagulant is added in an amount effective to substantially halt any further particle growth. Th e complexing agent is believed to halt further growth by complexing with free coagulant ions still in the solution.
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Patent Agency Ranking
公开(公告)号：DE602006004824D1
公开(公告)日：2009-03-05
申请号：DE602006004824
申请日：2006-09-19
Applicant: XEROX CORP
Inventor： PATEL RAJ D , SANDERS DAVID J , NG TIE HWEE , DRAPPEL STEPHAN V , GARDNER SANDRA J , HADZIDEDIC SONJA , ISGANITIS LOUIS V , LINCOLN TIMOTHY L , MARCELL KEVIN F
IPC: G03G9/087
Abstract: Embodiments include a toner with a fractionated and/or distilled wax having from about 30 to about 64 carbon units, a degree of crystallinity as calculated by heat of melting and as measured by DSC of from about 55 to about 100, a Mw is from about 500 to about 800, and a polydispersity of from about 1 to about 1.05.
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公开(公告)号：CA2471077C
公开(公告)日：2008-07-29
申请号：CA2471077
申请日：2004-06-16
Applicant: XEROX CORP
Inventor： PATEL RAJ D , HOPPER MICHAEL A
Abstract: A process comprised of heating a mixture of a colorant dispersion, a latex emulsion, and an optional wax dispersion in the presence of a coagulant containing a metal ion, a base, and an organic sequestering agent, and wherein said heating involves a first heating and a second heating, and wherein the second heating is at a higher temperature than the first heating; and wherein said higher temperature is equal to about or above about the Tg of polymer or resin contained in said latex emulsion.
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公开(公告)号：CA2585599A1
公开(公告)日：2007-10-28
申请号：CA2585599
申请日：2007-04-20
Applicant: XEROX CORP
Inventor： PATEL RAJ D , ZWARTZ EDWARD G , MCANENEY T BRIAN , KUNTZ ALAN R , HANZLIK EDWARD C
Abstract: A toner composition includes a styrene-based polymer resin, a crystalline polyester wax, a second wax different from the crystalline polyester wax, a colorant, and a coagulant.
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公开(公告)号：CA2585680A1
公开(公告)日：2007-10-26
申请号：CA2585680
申请日：2007-04-19
Applicant: XEROX CORP
Inventor： HAWKINS MICHAEL S , PATEL RAJ D , FARRUGIA VALERIE M
Abstract: A toner composition includes toner particles including a polymeric resin, a colorant, a wax, and an optional coagulant, and a coagulant applied as a surface additive to a surface of the toner particles to alter a triboelectric charge of the toner particles.
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公开(公告)号：BRPI0604757A
公开(公告)日：2007-08-28
申请号：BRPI0604757
申请日：2006-11-14
Applicant: XEROX CORP
Inventor： PATEL RAJ D , SANDERS DAVID J , ANDERSON CHRISTINE , CHEN ALLAN K , VANBESIEN DARYL W , BURNS PATRICIA A
IPC: G03G9/087
Abstract: Embodiments include a chemical toner composition having a first resin including a styrene vinyl copolymer and having a Tg of from about 46 to about 56 C, b) a second resin including a styrene vinyl copolymer having a Tg of from about 55 to about 65 C, c) a distilled wax having a heat of crystallization and a heat of enthalpy, both from about 1.0 to about 4.0 J/g for every weight percent of the wax used in the chemical toner composition, and wherein the wax has a peak melting point of from about 70 to about 99 C, and d) a colorant, wherein the chemical toner has a gloss of from about 30 to about 80 GGU.
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