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公开(公告)号：US11209741B2
公开(公告)日：2021-12-28
申请号：US16822531
申请日：2020-03-18
Applicant: Xerox Corporation
Inventor： Chunliang Lu , Yu Qi , Peter V. Nguyen , Eliud Robles-Flores , Chieh-Min Cheng
Abstract: Fluorescent green toners are provided. In embodiments, a fluorescent green toner comprises fluorescent agent-incorporated resin particles comprising a resin, a fluorescence brightener, and a yellow fluorescent agent having an absorption spectrum that overlaps with a fluorescence emission spectrum of the fluorescence brightener; and a cyan colorant; blue dye-incorporated resin particles comprising the resin and a blue dye; or both. The fluorescent green toner has a weight ratio of the yellow fluorescent agent to the cyan colorant and, if present, the blue dye, in a range of from 100:1 to 0.2:1, and the fluorescent green toner exhibits Förster Resonance Energy Transfer (FRET) under illumination with UV light. Methods of making and using the fluorescent green toners are also provided.
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2.再颁专利公开(公告)号：USRE47920E1
公开(公告)日：2020-03-31
申请号：US16167707
申请日：2018-10-23
Applicant: XEROX CORPORATION
Inventor： Varun Sambhy , John S. Facci , Eliud Robles-Flores , David S. Derleth , David C. Craig
Abstract: A support material toner particle for use in xerographic additive manufacturing includes a PVA polymer blend including a polyvinyl alcohol (PVA) polymer and blend-additives including a chitosan and a polyvinylpyrrolidone (PVP), the amount of blend-additives is selected to adjust the Tg of the PVA polymer blend to be within about 1° C. to about 20° C. of a desired build material toner Tg. A xerographic toner system includes a build toner material and a support toner material, the support toner material includes a PVA polymer blend including a polyvinyl alcohol (PVA) polymer and blend-additives including a chitosan and a polyvinylpyrrolidone (PVP), the amount of blend-additives is selected to adjust the Tg of the PVA polymer blend to be within about 1° C. to about 20° C. of the build material toner Tg. A method of making a support toner material includes blending polyvinyl alcohol with blend additives including a chitosan and polyvinylpyrrolidone and forming support toner particles after the blending step.
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Patent Agency Ranking
公开(公告)号：US20230102385A1
公开(公告)日：2023-03-30
申请号：US17472833
申请日：2021-09-13
Applicant: Xerox Corporation
Inventor： Varun Sambhy , Eliud Robles-Flores , Douglas Allen Gutberlet , Paul F. Sawicki
Abstract: Disclosed herein is a release fluid, a fuser member and an image forming apparatus. The release fluid includes an amino functional silicone fluid, a non-functional silicone fluid; and vitamin E.
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公开(公告)号：US11204562B2
公开(公告)日：2021-12-21
申请号：US16822162
申请日：2020-03-18
Applicant: Xerox Corporation
Inventor： Yu Qi , Judith Vandewinckel , Chunliang Lu , Eliud Robles-Flores , Fan Shi
Abstract: Methods of making fluorescent pink toners are provided which comprise forming one or more fluorescent latexes which comprise a red fluorescent agent, a yellow fluorescent agent, a first type of amorphous resin, and a second type of amorphous resin, wherein the first and second types of amorphous resins are present at a ratio in a range of from 2:3 to 3:2; forming a mixture comprising the one or more fluorescent latexes; one or more emulsions which comprise a crystalline resin, the first type of amorphous resin, the second type of amorphous resin; and optionally, a wax dispersion; aggregating the mixture to form particles of a predetermined size; forming a shell over the particles of the predetermined size to form core-shell particles; and coalescing the core-shell particles to form a fluorescent pink toner. Fluorescent pink toners and methods of using such toners are also provided.
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5.发明授权公开(公告)号：US09857710B1
公开(公告)日：2018-01-02
申请号：US15258190
申请日：2016-09-07
Applicant: XEROX CORPORATION
Inventor： Varun Sambhy , John S. Facci , Eliud Robles-Flores , David S. Derleth , David C. Craig
CPC classification number: G03G9/08775 , B33Y70/00 , C08L29/02 , C08L29/04 , C08L29/06 , C08L39/06 , G03G9/081 , G03G9/08708 , G03G9/08722 , G03G9/08731 , G03G9/08737 , G03G9/0874 , G03G9/08766 , G03G9/08777
Abstract: A support material toner particle for use in xerographic additive manufacturing includes a polyvinyl alcohol (PVA) polymer and blend-additives including a chitosan and a polyvinylpyrrolidone (PVP), the amount of blend-additives is selected to adjust the Tg of the PVA polymer to be within about 1° C. to about 20° C. of a desired build material toner Tg. A xerographic toner system includes a build toner material and a support toner material, the support toner material includes a polyvinyl alcohol (PVA) polymer and blend-additives including a chitosan and a polyvinylpyrrolidone (PVP), the amount of blend-additives is selected to adjust the Tg of the PVA polymer to be within about 1° C. to about 20° C. of the build material toner Tg. A method of making a support toner material includes blending polyvinyl alcohol with blend additives including a chitosan and polyvinylpyrrolidone and forming support toner particles after the blending step.
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公开(公告)号：US20210294233A1
公开(公告)日：2021-09-23
申请号：US16822531
申请日：2020-03-18
Applicant: Xerox Corporation
Inventor： Chunliang Lu , Yu Qi , Peter V. Nguyen , Eliud Robles-Flores , Chieh-Min Cheng
Abstract: Fluorescent green toners are provided. In embodiments, a fluorescent green toner comprises fluorescent agent-incorporated resin particles comprising a resin, a fluorescence brightener, and a yellow fluorescent agent having an absorption spectrum that overlaps with a fluorescence emission spectrum of the fluorescence brightener; and a cyan colorant; blue dye-incorporated resin particles comprising the resin and a blue dye; or both. The fluorescent green toner has a weight ratio of the yellow fluorescent agent to the cyan colorant and, if present, the blue dye, in a range of from 100:1 to 0.2:1, and the fluorescent green toner exhibits Førster Resonance Energy Transfer (FRET) under illumination with UV light. Methods of making and using the fluorescent green toners are also provided.
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公开(公告)号：US20210294230A1
公开(公告)日：2021-09-23
申请号：US16822162
申请日：2020-03-18
Applicant: Xerox Corporation
Inventor： Yu Qi , Judith Vandewinckel , Chunliang Lu , Eliud Robles-Flores , Fan Shi
Abstract: Methods of making fluorescent pink toners are provided which comprise forming one or more fluorescent latexes which comprise a red fluorescent agent, a yellow fluorescent agent, a first type of amorphous resin, and a second type of amorphous resin, wherein the first and second types of amorphous resins are present at a ratio in a range of from 2:3 to 3:2; forming a mixture comprising the one or more fluorescent latexes; one or more emulsions which comprise a crystalline resin, the first type of amorphous resin, the second type of amorphous resin; and optionally, a wax dispersion; aggregating the mixture to form particles of a predetermined size; forming a shell over the particles of the predetermined size to form core-shell particles; and coalescing the core-shell particles to form a fluorescent pink toner. Fluorescent pink toners and methods of using such toners are also provided.
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