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    SURFACE-TREATED METAL OXIDE PARTICLES
    4.
    发明申请
    SURFACE-TREATED METAL OXIDE PARTICLES 审中-公开
    表面处理的金属氧化物颗粒

    公开(公告)号：WO2008027561A2

    公开(公告)日：2008-03-06

    申请号：PCT/US2007/019212

    申请日：2007-08-31

    Applicant: CABOT CORPORATION ,  FOMITCHEV, Dmitry ,  WILLIAMS, William, R. ,  WHICHER, Casey, P. ,  XIONG, Jincheng

    Inventor： FOMITCHEV, Dmitry ,  WILLIAMS, William, R. ,  WHICHER, Casey, P. ,  XIONG, Jincheng

    IPC: C09C3/12 ,  C09C1/36 ,  C09C1/40

    CPC classification number: C09C1/407 ,  B82Y30/00 ,  C01P2002/86 ,  C01P2004/64 ,  C01P2006/12 ,  C09C1/3684 ,  C09C3/12

    Abstract: The invention provides surface-treated metal oxide particles. The surface-treated metal oxide particles have specific ratios of (1) the integrated area of the resonance signals with chemical shifts in the range from -4 ppm to -33 ppm to the integrated area of the resonance signals with chemical shifts in the range from -33 ppm to -76 ppm and (2) the integrated area of the resonance signals with chemical shifts in the range from -76 ppm to -130 ppm to the integrated area of the resonance signals with chemical shifts in the range from -33 ppm to -76 ppm in the CP/MAS 29Si NMR spectrum. The invention further provides a toner composition for electrophotographic image formation comprising toner particles and surface-treated metal oxide particles.

    Abstract translation: 本发明提供表面处理的金属氧化物颗粒。 表面处理的金属氧化物颗粒具有特定的比例，（1）共振信号的积分面积与在-4ppm至-33ppm范围内的化学位移与共振信号的积分面积之间的化学位移为 -33ppm至-76ppm和（2）具有在-76ppm至-130ppm范围内的化学位移的谐振信号的积分面积与谐振信号的积分面积之间的化学位移为-33ppm 在CP / MAS 29 Si NMR谱中为-76 ppm。 本发明进一步提供一种电子照相图像形成用调色剂组合物，其包含调色剂颗粒和经表面处理的金属氧化物颗粒。

    TREATED METAL OXIDE PARTICLES AND TONER COMPOSITIONS
    6.
    发明申请
    TREATED METAL OXIDE PARTICLES AND TONER COMPOSITIONS 审中-公开

    公开(公告)号：WO2010005492A8

    公开(公告)日：2010-01-14

    申请号：PCT/US2009/003802

    申请日：2009-06-26

    Applicant: CABOT CORPORATION ,  LIU, Jinsong ,  TU, Hairuo ,  FOMITCHEV, Dmitry

    Inventor： LIU, Jinsong ,  TU, Hairuo ,  FOMITCHEV, Dmitry

    IPC: C09C1/00 ,  C09C1/30 ,  C09C1/40 ,  G03G9/097

    Abstract: Treated metal oxide particles include metal oxide particles treated with at least a charge modifying agent. The charge modifying agent is represented by the following formula: An-Z c -Y b -Ar(EW) a, wherein Ar represents an aromatic group, EW represents an electron withdrawing group, Y represents a spacer group, Z represents an alkylene group, An represents an anchor group, a is an integer from 1 to 5, b is 0 or 1, and c is 0 or 1. The treated metal oxide particles may also be treated with a second charge modifying agent or with a hydrophobicity-imparting agent. A toner composition including toner particles and treated metal oxide particles is also disclosed.

    COMPOSITE PARTICLES FOR TONER ADDITIVES
    8.
    发明申请
    COMPOSITE PARTICLES FOR TONER ADDITIVES 审中-公开

    公开(公告)号：WO2020033357A1

    公开(公告)日：2020-02-13

    申请号：PCT/US2019/045225

    申请日：2019-08-06

    Applicant: CABOT CORPORATION

    Inventor： TU, Hairuo ,  XIONG, Jincheng ,  PALUMBO, Paul S. ,  FOMITCHEV, Dmitry

    IPC: G03G9/08 ,  B82Y30/00 ,  C08G77/38 ,  C09C3/12

    Abstract: Metal oxide-polymer composite particles have a median particle size D50 of 40-75 nm or 100-150 nm and an average RTA of at least 0.06. Alternatively or in addition, metal oxide-polymer composites comprise two or more populations of metal oxide particles differing in size, particle size distribution, or shape. Alternatively or in addition, the use of a multicomponent hydrophobizing system including an alkylsilane to fabricate metal oxide-polymer composite particles increases the tribocharge of the composite particles.

    METHOD OF PREPARING HYDROPHOBIC SILICA
    10.
    发明申请
    METHOD OF PREPARING HYDROPHOBIC SILICA 审中-公开

    公开(公告)号：WO2008033506A3

    公开(公告)日：2008-03-20

    申请号：PCT/US2007/020007

    申请日：2007-09-14

    Applicant: CABOT CORPORATION ,  FLOESS, Joachim, K. ,  WILLIAMS, William, R. ,  FOMITCHEV, Dmitry

    Inventor： FLOESS, Joachim, K. ,  WILLIAMS, William, R. ,  FOMITCHEV, Dmitry

    IPC: C09C1/30

    Abstract: The invention provides hydrophobic surface-treated silica particles having (1) a ratio T2:T3 of about 0.4 or more, wherein T2 is the intensity of a peak having a chemical shift in the CP/MAS 29 Si NMR spectrum centered within the range of -56 ppm to -59 ppm, and wherein T3 is the intensity of a peak having a chemical shift in the CP/MAS 29 Si NMR spectrum centered within the range of -65 ppm to -69 ppm, and (2) a ratio (T2 +T3) / (T2 +T3 +M) of greater than about 0.05, wherein M is the intensity of a peak having a chemical shift in the CP/MAS 29 Si NMR spectrum centered within the range of +7 ppm to +18 ppm. The invention also provides a method of preparing hydrophobic surface-treated silica particles.

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