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    POLYMER FILAMENTS COMPRISING AN AQUEOUS-SOLUBLE IMIDE POLYMER AND USE THEREOF AS A SACRIFICIAL PRINTING MATERIAL IN ADDITIVE MANUFACTURING
    1.
    发明公开
    POLYMER FILAMENTS COMPRISING AN AQUEOUS-SOLUBLE IMIDE POLYMER AND USE THEREOF AS A SACRIFICIAL PRINTING MATERIAL IN ADDITIVE MANUFACTURING 审中-公开

    公开(公告)号：EP3960426A2

    公开(公告)日：2022-03-02

    申请号：EP21190449.5

    申请日：2021-08-09

    申请人： Xerox Corporation

    发明人： NOSELLA, Kimberly D. ,  VEREGIN, Richard Philip Nelson ,  CHOPRA, Naveen

    IPC分类号： B29C64/118 ,  B29C64/40 ,  D01F6/74

    摘要： When making parts by additive manufacturing, particularly by fused filament fabrication, it is sometimes necessary to include a removable support during part fabrication due to the shape of the part. An overhang, for instance, may be fabricated using a support structure, which is subsequently eliminated following polymer matrix consolidation. Elimination of a removable support following part fabrication may be problematic in some instances. Polymer filaments suitable for forming removable supports during additive manufacturing may comprise at least one imide polymer having at least partial solubility in aqueous fluids. Imide polymers may include, for example, polyimides and polyesterimides. Additive manufacturing processes may comprise forming a supported part by depositing a build material and a removable support comprising an imide polymer, wherein at least a portion of the build material is deposited upon the removable support. An unsupported part may be formed following exposure of the supported part to an aqueous fluid.

    TONER COMPOSITIONS AND ADDITIVES
    3.
    发明公开
    TONER COMPOSITIONS AND ADDITIVES 审中-公开

    公开(公告)号：EP4152098A1

    公开(公告)日：2023-03-22

    申请号：EP22192994.6

    申请日：2022-08-30

    申请人： Xerox Corporation

    发明人： VEREGIN, Richard Philip Nelson ,  NOSELLA, Kimberly D. ,  DIAZ, Raysa Rodriguez ,  DAVIS, Melanie Lynn ,  VONG, Cuong

    IPC分类号： G03G9/097

    摘要： Disclosed herein is a toner composition, developer and additive for a toner composition. The toner composition includes toner particles comprising at least one resin, an optional colorant, an optional wax, and a polymeric toner additive on at least a portion of an external surface of the toner particles. The polymeric toner additive includes a polymeric resin comprising a cross-linked fluorinated acrylic monomer, a cross-linkable monomer containing two or more vinyl groups at 8 wt% to 40 wt% of the polymeric resin, and optionally a charge control agent comprising nitrogen containing group at 0.1 wt% to 1.5 wt% of the polymeric resin.

    POLYMER FILAMENTS COMPRISING AN AQUEOUS-SOLUBLE IMIDE POLYMER AND USE THEREOF AS A SACRIFICIAL PRINTING MATERIAL IN ADDITIVE MANUFACTURING
    4.
    发明公开
    POLYMER FILAMENTS COMPRISING AN AQUEOUS-SOLUBLE IMIDE POLYMER AND USE THEREOF AS A SACRIFICIAL PRINTING MATERIAL IN ADDITIVE MANUFACTURING 审中-公开

    公开(公告)号：EP3960426A3

    公开(公告)日：2022-05-11

    申请号：EP21190449.5

    申请日：2021-08-09

    申请人： Xerox Corporation

    发明人： NOSELLA, Kimberly D. ,  VEREGIN, Richard Philip Nelson ,  CHOPRA, Naveen

    IPC分类号： B29C64/118 ,  B29C64/40 ,  D01F6/74 ,  B33Y70/00

    摘要： When making parts by additive manufacturing, particularly by fused filament fabrication, it is sometimes necessary to include a removable support during part fabrication due to the shape of the part. An overhang, for instance, may be fabricated using a support structure, which is subsequently eliminated following polymer matrix consolidation. Elimination of a removable support following part fabrication may be problematic in some instances. Polymer filaments suitable for forming removable supports during additive manufacturing may comprise at least one imide polymer having at least partial solubility in aqueous fluids. Imide polymers may include, for example, polyimides and polyesterimides. Additive manufacturing processes may comprise forming a supported part by depositing a build material and a removable support comprising an imide polymer, wherein at least a portion of the build material is deposited upon the removable support. An unsupported part may be formed following exposure of the supported part to an aqueous fluid.

    NON-BISPHENOL-A EMULSION AGGREGATION TONER AND PROCESS
    5.
    发明公开
    NON-BISPHENOL-A EMULSION AGGREGATION TONER AND PROCESS 审中-公开

    公开(公告)号：EP3680719A1

    公开(公告)日：2020-07-15

    申请号：EP20151322.3

    申请日：2020-01-10

    申请人： Xerox Corporation

    发明人： NOSELLA, Kimberly D. ,  SACRIPANTE, Guerino G. ,  ZWARTZ, Edward G. ,  HAWKINS, Michael Steven

    IPC分类号： G03G9/08 ,  G03G9/09 ,  G03G9/087 ,  G03G9/093

    摘要： 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
    7.
    发明公开
    TONER 审中-公开

    公开(公告)号：EP4124912A1

    公开(公告)日：2023-02-01

    申请号：EP22184353.5

    申请日：2022-07-12

    申请人： Xerox Corporation

    发明人： MOFFAT, Karen A. ,  NOSELLA, Kimberly D. ,  TEHRANI, Sepehr M.

    IPC分类号： G03G9/087

    摘要： Toners are provided which may comprise toner particles, a colorant, and optionally, a wax, wherein the toner particles comprise a resin comprising a polymerization product of reactants comprising a dioxane/dioxolane monomer and a vinyl co-monomer, wherein the dioxane/dioxolane monomer is an ester of (meth)acrylic acid with an alcohol comprising a dioxane moiety, an ester of (meth)acrylic acid with an alcohol comprising a dioxolane moiety, or both.

    METHOD FOR MANUFACTURING FLUORINATED STRUCUTURED ORGANIC PHOTORECEPTOR LAYERS
    10.
    发明公开
    METHOD FOR MANUFACTURING FLUORINATED STRUCUTURED ORGANIC PHOTORECEPTOR LAYERS 审中-公开
    制造含氟有机光敏受体层的方法

    公开(公告)号：EP3264182A1

    公开(公告)日：2018-01-03

    申请号：EP17177541.4

    申请日：2017-06-22

    申请人： Xerox Corporation

    发明人： MCGUIRE, Gregory M. ,  YANG, Suxia ,  NOSELLA, Kimberly D. ,  HU, Nan-Xing ,  SAVAGE, Edward C. ,  HEDRICK, Robert W.

    IPC分类号： G03G5/147 ,  G03G5/05

    CPC分类号： G03G5/14708 ,  C23C2/26 ,  G03G5/0525 ,  G03G5/0539 ,  G03G5/0592 ,  G03G5/0596 ,  G03G5/14726 ,  G03G5/14791 ,  G03G5/14795

    摘要： Disclosed herein is a method for manufacturing a fluorinated structured organic film (FSOF) composition for a photoreceptor. The method includes combining a fluorinated diol, an electroactive segment and a solvent in a round bottom reactor. The reacted is heated, without mixing dissolve the fluorinated diol composition. The dissolved fluorinated diol composition is mixed to dissolve the electroactive segment while maintaining the reactor at a temperature of between 80 and 85 °C. A catalyst and a leveling agent are added to the solution to initiate a pre-cure reaction. The pre-cure reaction proceeds for at least 2 hours at a temperature of between 80 and 85 °C. The solution is cooled to room temperature and filtered.

    摘要翻译： 本文公开了用于制造用于感光体的氟化结构化有机膜（FSOF）组合物的方法。 该方法包括在圆底反应器中合并氟化二醇，电活性部分和溶剂。 加热反应物，不混合溶解氟化二醇组合物。 将溶解的氟化二醇组合物混合以溶解电活性片段，同时将反应器保持在80至85℃之间的温度。 将催化剂和流平剂加入到溶液中以引发预固化反应。 预固化反应在80至85℃的温度下进行至少2小时。 将溶液冷却至室温并过滤。