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1.发明申请公开(公告)号：US20190243271A1
公开(公告)日：2019-08-08
申请号：US15891818
申请日：2018-02-08
Applicant: Xerox Corporation
Inventor： Siddhesh Nitin Pawar , Juan A. Morales-Tirado , Grazyna E. Kmiecik-Lawrynowicz , Daniel W. Asarese , Jordan A. Frank
CPC classification number: G03G9/09392 , G03G9/0802 , G03G9/0804 , G03G9/0808 , G03G9/0821 , G03G9/0825 , G03G9/08706 , G03G9/08711 , G03G9/08726 , G03G9/08782 , G03G9/08784
Abstract: Methods of forming a toner are provided. In embodiments, such a method comprises forming a toner from a mixture of at least one resin, at least one wax, and optionally, at least one colorant, wherein the at least one wax is of a type and is present at an amount which are selected to provide a predetermined PER10 value for the toner; and measuring a PER10 value for the toner, wherein the measured PER10 value for the toner is equal to or less than the predetermined PER10 value. Toners formed using the methods are also provided.
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公开(公告)号：US20210263435A1
公开(公告)日：2021-08-26
申请号：US16800118
申请日：2020-02-25
Applicant: Xerox Corporation
Inventor： Richard P. N. Veregin , Michael F. Zona , Jordan A. Frank , Daniel W. Asarese , Paul K. Acquaviva , Chieh-Min Cheng
Abstract: A toner including a parent toner particle comprising at least one resin, in combination with an optional colorant, and an optional wax; and a surface additive formulation comprising at least one medium silica surface additive; at least one large silica surface additive; at least one positive charging surface additive, wherein the at least one positive charging surface additive is (a) a titanium dioxide surface additive; and wherein the parent toner particles further contain a small silica; or (b) a non-titanium dioxide positive charging metal oxide surface additive; and wherein the parent toner particles further optionally contain a small silica; and wherein a total surface area coverage of all of the surface additives combined is 100 to 140 percent of the parent toner particle surface area.
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公开(公告)号：US11092906B1
公开(公告)日：2021-08-17
申请号：US16800118
申请日：2020-02-25
Applicant: Xerox Corporation
Inventor： Richard P. N. Veregin , Michael F. Zona , Jordan A. Frank , Daniel W. Asarese , Paul K. Acquaviva , Chieh-Min Cheng
Abstract: A toner including a parent toner particle comprising at least one resin, in combination with an optional colorant, and an optional wax; and a surface additive formulation comprising at least one medium silica surface additive; at least one large silica surface additive; at least one positive charging surface additive, wherein the at least one positive charging surface additive is (a) a titanium dioxide surface additive; and wherein the parent toner particles further contain a small silica; or (b) a non-titanium dioxide positive charging metal oxide surface additive; and wherein the parent toner particles further optionally contain a small silica; and wherein a total surface area coverage of all of the surface additives combined is 100 to 140 percent of the parent toner particle surface area.
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公开(公告)号：US20230324824A1
公开(公告)日：2023-10-12
申请号：US17697783
申请日：2022-03-17
Applicant: Xerox Corporation
Inventor： Genggeng Qi , Jordan A. Frank , Elizabeth K. Priebe , Chieh-Min Cheng , Michael F. Zona
CPC classification number: G03G9/09758 , G03G9/081 , G03G9/08755 , G03G9/09328 , G03G9/09371 , G03G9/09725
Abstract: An emulsion aggregation toner including a toner particle comprising at least one resin; an optional colorant; an optional wax; and a charge control agent disposed on a surface of the toner particle; the charge control agent comprising a complex formed from a metal ion donor and at least one of a ligand selected from a member of the group consisting of a polyaromatic acid comprising humic acid, a pyranone based ligand, a furanone based ligand, or a combination thereof.
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公开(公告)号：US20210263436A1
公开(公告)日：2021-08-26
申请号：US16800176
申请日：2020-02-25
Applicant: Xerox Corporation
Inventor： Jordan A. Frank , Daniel W. Asarese , Paul K. Acquaviva , Chieh-Min Cheng , Michael F. Zona , Richard P. N. Veregin
Abstract: A toner composition including a first wax; a second wax that is different from the first wax; wherein the first wax comprises a paraffin wax; wherein the second wax comprises a polymethylene wax; at least one polyester; and an optional colorant.
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Patent Agency Ranking
公开(公告)号：US11086244B1
公开(公告)日：2021-08-10
申请号：US16800236
申请日：2020-02-25
Applicant: Xerox Corporation
Inventor： Richard P. N. Veregin , Michael F. Zona , Jordan A. Frank , Daniel W. Asarese , Chieh-Min Cheng , Paul K. Acquaviva
Abstract: A toner including a parent toner particle comprising at least one resin, in combination with an optional colorant, and an optional wax; and a surface additive formulation comprising at least one medium silica surface additive; at least one large cross-linked organic polymeric additive; at least one positive charging surface additive, wherein the at least one positive charging surface additive is (a) a titanium dioxide surface additive; and wherein the parent toner particles further contain a small silica; or (b) a non-titanium dioxide positive charging metal oxide surface additive; and wherein the parent toner particles further optionally contain a small silica; and wherein a total surface area coverage of all of the surface additives combined is 100 to 140 percent of the parent toner particle surface area.
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公开(公告)号：US20220091530A1
公开(公告)日：2022-03-24
申请号：US17030462
申请日：2020-09-24
Applicant: Xerox Corporation , Clarkson University
Inventor： Elizabeth K. Priebe , Christopher Michael Wolfe , Chieh-Min Cheng , Jordan A. Frank , Richard Partch
IPC: G03G9/097
Abstract: According to various embodiments, there is provided a toner composition and a developer. The toner composition includes toner particles including a resin, a colorant; and a surface additive applied to a surface of the toner particles. The surface additive includes polyaniline doped strontium titanate (SrTiO3).
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公开(公告)号：US11169461B1
公开(公告)日：2021-11-09
申请号：US17030465
申请日：2020-09-24
Applicant: Xerox Corporation , Clarkson University
Inventor： Elizabeth K. Priebe , Christopher Michael Wolfe , Chieh-Min Cheng , Jordan A. Frank , Richard Partch
IPC: G03G9/097
Abstract: According to various embodiments, there is provided a toner composition and a developer. The toner composition includes toner particles including a resin, a colorant, a charge control agent, and a surface additive applied to a surface of the toner particles. The surface additive includes strontium titanate (SrTiO3), silica (SiO2), silicon tetrachloride (SiCl4) and a charge control agent.
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公开(公告)号：US11086243B1
公开(公告)日：2021-08-10
申请号：US16800176
申请日：2020-02-25
Applicant: Xerox Corporation
Inventor： Jordan A. Frank , Daniel W. Asarese , Paul K. Acquaviva , Chieh-Min Cheng , Michael F. Zona , Richard P. N. Veregin
Abstract: A toner composition including a first wax; a second wax that is different from the first wax; wherein the first wax comprises a paraffin wax; wherein the second wax comprises a polymethylene wax; at least one polyester; and an optional colorant.
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10.发明授权公开(公告)号：US10409185B2
公开(公告)日：2019-09-10
申请号：US15891818
申请日：2018-02-08
Applicant: Xerox Corporation
Inventor： Siddhesh Nitin Pawar , Juan A. Morales-Tirado , Grazyna E. Kmiecik-Lawrynowicz , Daniel W. Asarese , Jordan A. Frank
Abstract: Methods of forming a toner are provided. In embodiments, such a method comprises forming a toner from a mixture of at least one resin, at least one wax, and optionally, at least one colorant, wherein the at least one wax is of a type and is present at an amount which are selected to provide a predetermined PER10 value for the toner; and measuring a PER10 value for the toner, wherein the measured PER10 value for the toner is equal to or less than the predetermined PER10 value. Toners formed using the methods are also provided.
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