METHOD OF PREPARING HYDROPHOBIC SILICA
    12.
    发明申请
    METHOD OF PREPARING HYDROPHOBIC SILICA 审中-公开
    制备疏水性二氧化硅的方法

    公开(公告)号:WO2008033506A2

    公开(公告)日:2008-03-20

    申请号:PCT/US2007020007

    申请日:2007-09-14

    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.

    Abstract translation: 本发明提供了疏水性表面处理的二氧化硅颗粒,其具有(1)比率T2:T3约为0.4或更大,其中T2是在CP / MAS中的化学位移的峰强度 NMR谱范围在-56ppm至-59ppm的范围内,其中T3是在以下范围内的CP / MAS第三十三NMR核磁共振谱中具有化学位移的峰的强度, 65ppm至-69ppm,和(2)大于约0.05的比率(T2 + T3)/(T2 + T3 + M),其中M是在CP / MAS中具有化学位移的峰的强度, SUP> 29 Si NMR光谱以+ 7ppm至+ 18ppm的范围为中心。 本发明还提供了制备疏水性表面处理二氧化硅颗粒的方法。

    SURFACE-TREATED METAL OXIDE PARTICLES
    13.
    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

    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。

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