DISPERSION COMPRISING CERIUM OXIDE AND SILICON DIOXIDE
    3.
    发明申请
    DISPERSION COMPRISING CERIUM OXIDE AND SILICON DIOXIDE 审中-公开
    包含氧化铈和二氧化硅的分散体

    公开(公告)号:US20120083188A1

    公开(公告)日:2012-04-05

    申请号:US13377005

    申请日:2010-05-18

    摘要: Aqueous dispersion comprising cerium oxide and silicon dioxide, obtainable by first mixing a cerium oxide starting dispersion and a silicon dioxide starting dispersion while stirring, and then dispersing at a shear rate of 10000 to 30000 s−1, wherein a) the cerium oxide starting dispersion—contains 0.5 to 30% by weight of cerium oxide particles as the solid phase, —a d5o of the particle size distribution of 10 to 100 nm—and has a pH of 1 to 7, and b) the silicon dioxide starting dispersion—contains 0.1 to 30% by weight of colloidal silicon dioxide particles as the solid phase, has a d5o of the particle size distribution of 3 to 50 nm and has a pH of 6 to 11.5, d) with the proviso that the d5o of the particle size distribution of the cerium oxide particles is greater than that of the silicon dioxide particles, the cerium oxide/silicon dioxide weight ratio is >1 and the amount of cerium oxide starting dispersion is such that the zeta potential of the dispersion is negative.

    摘要翻译: 通过在搅拌下首先混合氧化铈起始分散体和二氧化硅起始分散体,然后以10000〜30000s -1的剪切速度分散得到的含有氧化铈和二氧化硅的水分散体,其中a)氧化铈起始分散体 - 含有0.5〜30重量%的作为固相的氧化铈粒子,-a d 50的粒径分布为10〜100nm,pH为1〜7,b)二氧化硅起始分散体含有 0.1〜30重量%的作为固相的胶态二氧化硅粒子,其d5o的粒度分布为3〜50nm,pH为6〜11.5,d),条件是粒径d 5o 氧化铈颗粒的分布大于二氧化硅颗粒的分布,氧化铈/二氧化硅重量比> 1,并且氧化铈起始分散体的量使得分散体的ζ电位为负。

    DISPERSION OF HYDROPHOBICIZED SILICON DIOXIDE PARTICLES AND GRANULES THEREOF
    8.
    发明申请
    DISPERSION OF HYDROPHOBICIZED SILICON DIOXIDE PARTICLES AND GRANULES THEREOF 审中-公开
    疏水性二氧化硅二氧化硅颗粒及其颗粒的分散

    公开(公告)号:US20110123806A1

    公开(公告)日:2011-05-26

    申请号:US12996635

    申请日:2009-06-03

    IPC分类号: B32B1/00 C09D7/12 B82Y30/00

    摘要: Process for preparing a dispersion of surface-modified silicon dioxide particles having an average particle diameter of not more than 100 nm by high-pressure milling of a preliminary dispersion comprising a) 10% to 50% by weight of surface-modified silicon dioxide particles, b) at least one glycol monoether of the general formula (A): H3C(CH2)m—O—(CH2)n—[O—(CH2)o]p—OH, c) at least one carboxylic ester of the general formula (B): H2x+1Cx—O—CH2—(CHR)—[O—CHR]y—O—C(═O)—CzH2z+1, d) the molar ratio A/B being 10:90 to 40:60 and m, n, o, p, x, y and z being independent of one another. Dispersion obtainable by this process. Process for producing granules of surface-modified silicon dioxide particles by separating off the liquid phase of the dispersion. Granules obtainable by this process. Use of dispersion and granules in coating materials.

    摘要翻译: 通过高压研磨预备分散体制备平均粒径不大于100nm的表面改性二氧化硅颗粒的分散体的方法,该预分散体包括a)10重量%至50重量%的表面改性二氧化硅颗粒, b)至少一种通式(A)的二醇单醚:H3C(CH2)m-O-(CH2)n- [O-(CH2)o] p-OH,c)至少一种一般的羧酸酯 式(B):H2x + 1Cx-O-CH2-(CHR) - [O-CHR] y-O-C(= O)-CzH2z + 1,d)摩尔比A / B为10:90〜 :60和m,n,o,p,x,y和z彼此独立。 通过该方法可获得的分散体。 通过分离分散体的液相来生产表面改性的二氧化硅颗粒的颗粒的方法。 颗粒可以通过这个过程获得。 在涂料中使用分散体和颗粒。

    PROCESS FOR PREPARING REDISPERSIBLE SURFACE-MODIFIED SILICON DIOXIDE PARTICLES
    9.
    发明申请
    PROCESS FOR PREPARING REDISPERSIBLE SURFACE-MODIFIED SILICON DIOXIDE PARTICLES 有权
    制备可重复表面修饰的二氧化硅颗粒的方法

    公开(公告)号:US20110086958A1

    公开(公告)日:2011-04-14

    申请号:US12996936

    申请日:2009-06-02

    摘要: Process for preparing surface-modified silicon dioxide particles with a mean particle diameter of at most 100 nm, comprising the steps of: a) providing a predispersion b) high-pressure grinding of the predispersion to form a dispersion c) removing the liquid phase of the dispersion, the predispersion comprising a1) surface-modified silicon dioxide particles which are at least partly aggregated, are bonded to the surface-modifying component via Si—O—Si bonds and still have reactive groups on their surface, a2) one or more organosilicon compounds which have at least one silicon-carbon bond and at least one functional group which can react with the reactive groups to form a covalent Si—O—Si bond, and a3) one or more solvents. Redispersible, surface-modified silicon dioxide particles obtainable by this process. Use of these in toner powders, silicone rubber, adhesives and scratch-resistance surface coatings.

    摘要翻译: 制备平均粒径为至多100nm的表面改性二氧化硅颗粒的方法,包括以下步骤:a)提供预分散体b)预分散体的高压研磨以形成分散体c)除去 分散体,包含a1)至少部分聚集的表面改性二氧化硅颗粒的预分散体通过Si-O-Si键与表面改性组分键合,并且在其表面上仍具有反应性基团,a2)一个或多个 具有至少一个硅 - 碳键的有机硅化合物和至少一个可与反应性基团反应形成共价Si-O-Si键的官能团,和a)一种或多种溶剂。 可通过该方法获得的可再分散的表面改性二氧化硅颗粒。 在调色剂粉末,硅橡胶,粘合剂和耐刮擦表面涂层中使用这些。

    APPARATUS AND METHOD FOR CARRYING OUT CHEMICAL AND PHYSICAL MATERIALS TRANSFORMATIONS
    10.
    发明申请
    APPARATUS AND METHOD FOR CARRYING OUT CHEMICAL AND PHYSICAL MATERIALS TRANSFORMATIONS 有权
    用于进行化学和物理材料转换的装置和方法

    公开(公告)号:US20110015281A1

    公开(公告)日:2011-01-20

    申请号:US12920498

    申请日:2009-03-05

    摘要: Reactor for carrying out chemical and physical materials transformations, which comprises a reaction space enclosed by a reactor housing, where the reactor housing has at least two lateral fluid inlets having adjustably mounted nozzles which include an angle of about 20-160 degrees and through which fluid jets which impinge on one another at a common collision point within the reaction space are passed and the reactor has a fluid outlet at the bottom of the reaction space, which is characterized in that—an exchangeable bottom plate•which has a hole as fluid outlet and•on which moveably supported spheres are located so as to block the original path of the individual fluid jets in the unaligned state rests on the bottom of the reaction space and—a half shell standing upright on the bottom of the reaction space is located between each moveably supported sphere and the wall of the reactor space and—bottom plate, half shell and moveably supported spheres comprise one or more hard materials.

    摘要翻译: 用于进行化学和物理材料转化的反应器,其包括由反应器壳体包围的反应空间,其中反应器壳体具有至少两个侧向流体入口,其具有可调节地安装的喷嘴,其包括约20-160度的角度,并且流体 通过在反应空间内的共同碰撞点处彼此撞击的喷嘴,并且反应器在反应空间的底部具有流体出口,其特征在于 - 具有作为流体出口的孔的可更换的底板 和在其上可移动地支撑的球体被定位成阻挡在未对准状态下的各个流体射流的原始路径位于反应空间的底部,并且直立在反应空间底部的半壳体位于 每个可移动地支撑的球体和反应器空间和底板的壁,半壳体和可移动支撑的球体包括一个或多个硬质 材料