Zinc oxide powder aggregates present in circular, ellipsoidal, linear and branched form
    4.
    发明授权
    Zinc oxide powder aggregates present in circular, ellipsoidal, linear and branched form 有权
    呈圆形,椭圆形,线形和分枝状的氧化锌粉末聚集体

    公开(公告)号:US07371337B2

    公开(公告)日:2008-05-13

    申请号:US10572936

    申请日:2004-09-02

    IPC分类号: H01B1/00 H01B1/12 C01G9/02

    摘要: Pyrogenically prepared zinc oxide powder having a BET surface area of from 10 to 200 m2/g, which is in the form of aggregates, the aggregates being composed of particles having different morphologies, and 0-10% of the aggregates being in a circular form, 30-50% being in an ellipsoidal form, 30-50% being in a linear form and 20-30% being in a branched form. It is prepared by reacting a starting mixture containing zinc vapour, a combustible gas and steam or a mixture of steam and carbon dioxide in a flame with an oxygen-containing gas in an oxidation zone, cooling the hot reaction mixture in a quenching zone and separating the solid material from the gas stream, the amount of oxygen in the oxidation zone being greater than the amount necessary for the complete oxidation of the combustible gas and the zinc vapour. The zinc oxide powder can be used as a constituent of sun protection compositions for protection against UV radiation.

    摘要翻译: 热解制备的氧化锌粉末,其BET表面积为10至200m 2 / g,其为聚集体形式,聚集体由具有不同形态的颗粒组成,并且0-10% 的聚集体为圆形,30-50%为椭圆形,30-50%为直线形式,20-30%为分支形式。 通过在氧化区中将含有锌蒸汽,可燃气体和蒸汽或蒸汽和二氧化碳的混合物在火焰中与含氧气体的起始混合物反应制备,在淬火区域中冷却热反应混合物并分离 来自气流的固体材料,氧化区中的氧的量大于可燃气体和锌蒸汽的完全氧化所需的量。 氧化锌粉末可用作防紫外线辐射防晒组合物的组分。

    Zinc oxide powder aggregates present in circular ellipsoidal, linear and branched form
    8.
    发明申请
    Zinc oxide powder aggregates present in circular ellipsoidal, linear and branched form 有权
    氧化锌粉末聚集体存在于圆形椭圆形,直链和支链形式中

    公开(公告)号:US20070037699A1

    公开(公告)日:2007-02-15

    申请号:US10572936

    申请日:2004-09-02

    IPC分类号: B01J23/00

    摘要: Pyrogenically prepared zinc oxide powder having a BET surface area of from 10 to 200 m2/g, which is in the form of aggregates, the aggregates being composed of particles having different morphologies, and 0-10% of the aggregates being in a circular form, 30-50% being in an ellipsoidal form, 30-50% being in a linear form and 20-30% being in a branched form. It is prepared by reacting a starting mixture containing zinc vapour, a combustible gas and steam or a mixture of steam and carbon dioxide in a flame with an oxygen-containing gas in an oxidation zone, cooling the hot reaction mixture in a quenching zone and separating the solid material from the gas stream, the amount of oxygen in the oxidation zone being greater than the amount necessary for the complete oxidation of the combustible gas and the zinc vapour. The zinc oxide powder can be used as a constituent of sun protection compositions for protection against UV radiation.

    摘要翻译: 热解制备的氧化锌粉末,其BET表面积为10至200m 2 / g,其为聚集体形式,聚集体由具有不同形态的颗粒组成,并且0-10% 的聚集体为圆形,30-50%为椭圆形,30-50%为直线形式,20-30%为分支形式。 通过在氧化区中将含有锌蒸汽,可燃气体和蒸汽或蒸汽和二氧化碳的混合物在火焰中与含氧气体的起始混合物反应制备,在淬火区域中冷却热反应混合物并分离 来自气流的固体材料,氧化区中的氧的量大于可燃气体和锌蒸汽的完全氧化所需的量。 氧化锌粉末可用作防紫外线辐射防晒组合物的组分。

    HYDROPHOBIC ZINC OXIDE POWDER
    10.
    发明申请
    HYDROPHOBIC ZINC OXIDE POWDER 审中-公开
    氢氧化锌粉末

    公开(公告)号:US20100092411A1

    公开(公告)日:2010-04-15

    申请号:US12445474

    申请日:2007-08-01

    IPC分类号: A61K8/27

    摘要: Hydrophobic zinc oxide powder in the form of partially or completely coated aggregates of zinc oxide primary particles having a carbon content of from 0.4 to 1.5% by weight, based on the hydrophobic zinc oxide powder, and a BET surface area of from 25 to 100 m2/g, where the coated aggregates are present to 0 to

    摘要翻译: 氧化锌一次粒子的部分或完全涂覆的聚集体形式的疏水性氧化锌粉末,基于疏水性氧化锌粉末,碳含量为0.4至1.5重量%,BET表面积为25-100平方米 / g,其中涂覆的聚集体以圆形形式存在0至<10%,以椭圆形形式存在为15至<30%,以线形形式为<30%,分支形式为40至<70%,以及 不同形式的总和为15 100%,并且涂层包含化学键合的具有1至20个碳原子的直链和/或支链单烷基甲硅烷基硅烷基和/或二烷基甲硅烷基Si-(烷基)2。