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    SPHERICAL PARTICLES COMPRISING CARBON NANOMATERIAL-GRAFT-POLYURETHANE AND METHODS OF PRODUCTION AND USE THEREOF
    3.
    发明专利
    SPHERICAL PARTICLES COMPRISING CARBON NANOMATERIAL-GRAFT-POLYURETHANE AND METHODS OF PRODUCTION AND USE THEREOF 未知

    公开(公告)号：CA3158076A1

    公开(公告)日：2022-11-17

    申请号：CA3158076

    申请日：2022-05-09

    Applicant: XEROX CORP

    Inventor： CLARIDGE ROBERT ,  FARRUGIA VALERIE M ,  SRISKANDHA SHIVANTHI EASWARI

    IPC: B29C64/153 ,  B33Y70/10 ,  C08K3/04 ,  C08L75/04 ,  C09C1/44 ,  C09C3/10

    Abstract: A nonlimiting example method of forming highly spherical carbon nanomaterial-graft-polyurethane (CNM-g-polyurethane) particles may comprising: mixing a mixture comprising: (a) carbon nanomaterial-graft-polyurethane (CNM-g-polyurethane), wherein the CNM-g-polyurethane particles comprises: a polyurethane grafted to a carbon nanomaterial, (b) a carrier fluid that is immiscible with the polyurethane of the CNM-g-polyurethane, optionally (c) a thermoplastic polymer not grafted to a CNM, and optionally (d) an emulsion stabilizer at a temperature greater than a melting point or softening temperature of the polyurethane of the CNM-g-polyurethane and the thermoplastic polymer, when included, and at a shear rate sufficiently high to disperse the CNM-g-polyurethane in the carrier fluid; cooling the mixture to below the melting point or softening temperature to form CNM-g-polyurethane particles; and separating the CNM-g-polyurethane particles from the carrier fluid.

    SPHERICAL PARTICLES COMPRISING CARBON NANOMATERIAL-GRAFT-POLYOLEFIN AND METHODS OF PRODUCTION AND USES THEREOF
    4.
    发明专利
    SPHERICAL PARTICLES COMPRISING CARBON NANOMATERIAL-GRAFT-POLYOLEFIN AND METHODS OF PRODUCTION AND USES THEREOF 未知

    公开(公告)号：CA3158065A1

    公开(公告)日：2022-11-17

    申请号：CA3158065

    申请日：2022-05-09

    Applicant: XEROX CORP

    Inventor： SRISKANDHA SHIVANTHI EASWARI ,  FARRUGIA VALERIE M

    IPC: B29C64/153 ,  B33Y70/10 ,  C08F292/00 ,  C08K3/04 ,  C08L51/10 ,  C09C1/44 ,  C09C3/10

    Abstract: A nonlimiting example method of forming highly spherical carbon nanomaterial-graft-polyolefin (CNM-g-polyolefin) particles may comprising: mixing a mixture comprising: (a) a CNM-g-polyolefin comprising a polyolefin grafted to a carbon nanomaterial, (b) a carrier fluid that is immiscible with the polyolefin of the CNM-g-polyolefin, optionally (c) a thermoplastic polymer not grafted to a CNM, and optionally (d) an emulsion stabilizer at a temperature greater than a melting point or softening temperature of the polyolefin of the CNM-g-polyolefin and the thermoplastic polymer, when included, and at a shear rate sufficiently high to disperse the CNM-g-polyolefin in the carrier fluid; cooling the mixture to below the melting point or softening temperature to form the CNM-g-polyolefin particles; and separating the CNM-g-polyolefin particles from the carrier fluid.

    PRINTED TEXTURED SURFACES WITH ANTIMICROBIAL PROPERTIES AND METHODS THEREOF
    6.
    发明专利
    PRINTED TEXTURED SURFACES WITH ANTIMICROBIAL PROPERTIES AND METHODS THEREOF 未知

    公开(公告)号：CA3149470A1

    公开(公告)日：2022-09-05

    申请号：CA3149470

    申请日：2022-02-18

    Applicant: XEROX CORP

    Inventor： FARRUGIA VALERIE M ,  CHOPRA NAVEEN

    IPC: C09D5/16 ,  C09D4/02 ,  C09D11/101

    Abstract: An antimicrobial composition is disclosed. The antimicrobial coating composition includes at least one cured phase change ink which may include one or more crosslinked polymers, a photoinitiator, a wax, a gellant, and an antimicrobial additive. The composition also includes an engineered surface topography formed by the cured phase change ink. A method of preparing a textured antimicrobial surface is also disclosed. The method may include designing a template having a texture, printing the template onto a substrate using an uncured antimicrobial ink, and providing a light source to crosslink the uncured antimicrobial ink.

    PARTICLES COMPRISING POLYAMIDES WITH PENDENT PIGMENTS AND RELATED METHODS
    7.
    发明专利
    PARTICLES COMPRISING POLYAMIDES WITH PENDENT PIGMENTS AND RELATED METHODS 未知

    公开(公告)号：CA3091837C

    公开(公告)日：2022-06-21

    申请号：CA3091837

    申请日：2020-09-01

    Applicant: XEROX CORP

    Inventor： FARRUGIA VALERIE M ,  RESETCO CRISTINA ,  HAWKINS MICHAEL S ,  SRISKANDHA SHIVANTHI EASWARI ,  CLARIDGE ROBERT ,  MOORLAG CAROLYN PATRICIA ,  MOFFAT KAREN A

    IPC: C09C3/10 ,  B33Y70/00 ,  C08J3/12 ,  C08L77/00

    Abstract: A nonlimiting example method of forming polyamide polymer particles having pigments therein may comprising: mixing a mixture comprising a polyamide having a pigment pendent from a backbone of the polyamide (PP-polyamide), a carrier fluid that is immiscible with the PP-polyamide, and optionally an emulsion stabilizer at a temperature greater than a melting point or softening temperature of the PP-polyamide and at a shear rate sufficiently high to disperse the PP-polyamide in the carrier fluid; and cooling the mixture to below the melting point or softening temperature of the PP-polyamide to form solidified particles comprising the PP-polyamide and, when present, the emulsion stabilizer associated with an outer surface of the solidified particles. Said solidified particles may be used in additive manufacturing to make a variety of objects like containers, toys, furniture parts and decorative home goods, plastic gears, automotive parts, medical items, and the like.

    MELT EMULSION EXTRUSION METHODS FOR PRODUCING THERMOPLASTIC POLYMER PARTICLES
    9.
    发明专利
    MELT EMULSION EXTRUSION METHODS FOR PRODUCING THERMOPLASTIC POLYMER PARTICLES 未知

    公开(公告)号：CA3091843A1

    公开(公告)日：2021-03-09

    申请号：CA3091843

    申请日：2020-08-28

    Applicant: XEROX CORP

    Inventor： FARRUGIA VALERIE M ,  HAWKINS MICHAEL S ,  LAWTON MICHAEL JOHN WILLIAM ,  MOORLAG CAROLYN PATRICIA

    IPC: B29C64/118 ,  B29C64/314

    Abstract: A method of making thermoplastic polymer particles may include mixing in an extruder a mixture comprising a thermoplastic polymer and a carrier fluid that is immiscible with the thermoplastic polymer at a temperature greater than a melting point or softening temperature of the thermoplastic polymer and at a shear rate sufficiently high to disperse the thermoplastic polymer in the carrier fluid; cooling the mixture to below the melting point or softening temperature of the thermoplastic polymer to form solidified particles comprising thermoplastic polymer particles haying a circularity of 0.90 or greater and that comprise the thermoplastic polymer; and separating the solidified particles from the carrier fluid.

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