PIGMENTED POLYMER PARTICLES AND METHODS OF PRODUCTION AND USES THEREOF

    公开(公告)号:US20230416529A1

    公开(公告)日:2023-12-28

    申请号:US18462860

    申请日:2023-09-07

    申请人: Xerox Corporation

    摘要: Pigmented polymer particles may comprise a thermoplastic polymer and a pigment, wherein at least some of the pigmented polymer particles have a morphology according to (a), (b), (c), or any combination thereof: (a) the pigment having a coating comprising the thermoplastic polymer and the coated pigment adhered to a thermoplastic polymer particle, (b) the pigment being embedded in an outer surface of the thermoplastic polymer particle, and (c) the pigment being encapsulated by the thermoplastic polymer particle. The pigmented polymer particles, especially the highly spherical pigmented polymer particles, may be useful, among other things, as starting material for additive manufacturing. For example, a method may comprise: depositing, upon a surface, the foregoing pigmented polymer particles optionally in combination with other thermoplastic polymer particles; and once deposited, heating at least a portion of the particles to promote consolidation thereof and form a consolidated body.

    PURIFICATION OF FUNCTIONALIZED TRIBLOCK COPOLYMERS VIA METHANOL TRITURATION
    3.
    发明申请
    PURIFICATION OF FUNCTIONALIZED TRIBLOCK COPOLYMERS VIA METHANOL TRITURATION 有权
    通过甲醇诱导的功能化三嵌段共聚物的纯化

    公开(公告)号:US20150018498A1

    公开(公告)日:2015-01-15

    申请号:US13938874

    申请日:2013-07-10

    IPC分类号: C08G63/91

    CPC分类号: C08G63/90 C08G63/64

    摘要: A method of making a pure block copolymer includes forming a crude block copolymer; heating a solution of the crude block copolymer and alcohol; and cooling the solution to promote precipitation of a purified block copolymer, wherein an amount of impurities remaining in the purified block copolymer is from about 0 to about 5 wt % based on a total weight of the purified block copolymer; a ratio of a polydispersity index of the crude block copolymer to a polydispersity index of the purified block copolymer is from about 1.02 to about 1.25; a ratio of a molecular weight of the crude block copolymer to a molecular weight of the purified block copolymer is from about 0.75 to about 1.0; and a ratio of a number average molecular weight of the crude block copolymer to a number average molecular weight of the purified block copolymer is from about 0.65 to about 1.

    摘要翻译: 制备纯嵌段共聚物的方法包括形成粗嵌段共聚物; 加热粗制嵌段共聚物和醇的溶液; 并冷却溶液以促进纯化的嵌段共聚物的沉淀,其中基于纯化的嵌段共聚物的总重量,残留在纯化的嵌段共聚物中的杂质的量为约0至约5重量%; 粗嵌段共聚物的多分散指数与纯化的嵌段共聚物的多分散指数之比为约1.02至约1.25; 粗制嵌段共聚物的分子量与纯化的嵌段共聚物的分子量的比例为约0.75至约1.0; 粗嵌段共聚物的数均分子量与纯化嵌段共聚物的数均分子量的比例为约0.65〜约1。

    POLYIMIDE MICROPARTICLES
    4.
    发明公开

    公开(公告)号:US20240174821A1

    公开(公告)日:2024-05-30

    申请号:US18437526

    申请日:2024-02-09

    申请人: Xerox Corporation

    IPC分类号: C08J3/14 C08G73/10

    摘要: A method for producing polyimide microparticles may comprise: combining a diamine and a dianhydride in a first dry, high boiling point solvent; reacting the diamine and the dianhydride to produce a mixture comprising poly(amic acid) (PAA) and the first dry, high boiling point solvent; emulsifying the mixture in a matrix fluid that is immiscible with the first dry, high boiling point solvent using an emulsion stabilizer to form a precursor emulsion that is an oil-in-oil emulsion; and heating the precursor emulsion during and/or after formation to a temperature sufficient to polymerize the PAA to form the polyimide microparticles.

    LATEX PROCESS TO ENABLE HIGH LOADINGS OF HYDROPHOBIC MONOMERS
    5.
    发明申请
    LATEX PROCESS TO ENABLE HIGH LOADINGS OF HYDROPHOBIC MONOMERS 审中-公开
    LATEX工艺可以使用HYDROPHOBIC MONOMERS的高负载

    公开(公告)号:US20140128541A1

    公开(公告)日:2014-05-08

    申请号:US13669759

    申请日:2012-11-06

    申请人: XEROX CORPORATION

    IPC分类号: C09D133/16 C08K5/42

    摘要: A method for preparing a latex resin includes initiating polymerization of a starting reaction mixture including a first surfactant, a second surfactant, a solvent, a core monomer, and a hydrophobic monomer to form a latex seed in a reaction vessel, and mixing an additional amount of the second surfactant, the core monomer, and the hydrophobic monomer into the reaction vessel to form an emulsion including latex particles, wherein the first surfactant and the second surfactant may be the same or different.

    摘要翻译: 制备胶乳树脂的方法包括引发包括第一表面活性剂,第二表面活性剂,溶剂,核心单体和疏水单体的起始反应混合物的聚合,以在反应容器中形成胶乳种子, 的第二表面活性剂,核心单体和疏水单体加入到反应容器中以形成包括胶乳颗粒的乳液,其中第一表面活性剂和第二表面活性剂可以相同或不同。

    STRUCTURED ORGANIC FILMS CONTAINING N-CYCLIC QUATERNARY AMMONIUM HAVING CATIONIC CHARGE FUNCTIONALITY AND METHODS THEREOF

    公开(公告)号:US20240174808A1

    公开(公告)日:2024-05-30

    申请号:US18051800

    申请日:2022-11-01

    申请人: XEROX CORPORATION

    IPC分类号: C08G73/02 C07C215/82 C08J5/18

    摘要: A structured organic film (SOF) is disclosed. The structured organic film also includes a plurality of segments, a plurality of linkers, and a plurality of ionic capping segments, where at least one or more of the ionic capping segments may include a piperidinium group. Implementations of the structured organic film (SOF) may include where the piperidinium group is a bicyclic piperidinium group. The piperidinium group can be an n-cyclic quaternary ammonium. A total concentration of ionic segments in the SOF is from about 0.1 to about 5.0 molar equivalents based on a total concentration of segments in the SOF. The piperidinium group can be 3-methanol-6-azoniaspiro[5.5]undecane (MeASU). The structured organic film (SOF) has an ion exchange capacity (IEC) of from about 0.25 meq/g to about 5.00 meq/g. An ion-exchange membrane may include the structured organic film (SOF).

    POLYMER COATED PARTICULATE COMPOSITIONS AND RELATED METHODS AND APPLICATIONS

    公开(公告)号:US20230340264A1

    公开(公告)日:2023-10-26

    申请号:US17725721

    申请日:2022-04-21

    申请人: Xerox Corporation

    IPC分类号: C08L83/04 C09D183/04

    CPC分类号: C08L83/04 C09D183/04

    摘要: Polymer coated particulates may be produced by melt emulsification methods, for example, by mixing a mixture comprising: a carrier fluid, particulates, a thermoplastic polymer, and optionally an emulsion stabilizer at a temperature at or greater than a melting point or softening temperature of the thermoplastic polymer, wherein a mass ratio of the particulates to the thermoplastic polymer is about 1:0.1 to about 1:5; cooling the mixture to below the melting point or softening temperature to form polymer coated particulates; and separating the polymer coated particulates from the carrier fluid.