Carbon-containing luster pigments
    4.
    发明授权
    Carbon-containing luster pigments 失效
    含碳光泽颜料

    公开(公告)号:US5501731A

    公开(公告)日:1996-03-26

    申请号:US266384

    申请日:1994-06-27

    摘要: Luster pigments comprising coated, plateletlike, silicatic substrates wherein the coating comprises a layer consisting essentially of carbon and aluminum oxide, chromium oxide, cerium oxide, zirconium oxide, antimony oxide or mixtures thereof, are obtainable by applying carbon-containing compounds of the metals aluminum, chromium, cerium, zirconium, antimony or mixtures thereof with or without further carbon-containing compounds of the molecular formula (CH.sub.2 O).sub.n, where n is from 1 to 6 for one monomeric unit, to the substrate particles and then thermally decomposing the carbon-containing compounds on the surface of the substrate particles under oxygen-excluding conditions.

    摘要翻译: 包含涂覆的,片状的,硅基底物的光泽颜料,其中涂层包含基本上由碳和氧化铝,氧化铬,氧化铈,氧化锆,氧化锑或其混合物组成的层,可通过将含金属的化合物铝 ,铬,铈,锆,锑或其混合物与另外含有分子式(CH 2 O)n的含碳化合物(其中n为1个单体单元为1至6个)与基质颗粒反应,然后热分解碳 在氧排除条件下,在基体颗粒的表面上含有化合物。

    Preparation of acyloxyalkoxysilanes
    8.
    发明授权
    Preparation of acyloxyalkoxysilanes 失效
    酰氧基烷氧基硅烷的制备

    公开(公告)号:US5817853A

    公开(公告)日:1998-10-06

    申请号:US909941

    申请日:1997-08-12

    IPC分类号: C07F7/04 C07F7/08 C07F7/12

    CPC分类号: C07F7/045

    摘要: A process for preparing a silane of the formula I R.sup.1.sub.n SiR.sup.2.sub.m (I) where R.sup.1 is --O--Y, n is an integer from 1 to 3, R.sup.2 is ##STR1## m is an integer from 1 to 3 and n+m=4, and Y and Z are each, independently of one another, unsubstituted or mono- or polyhalo-substituted C.sub.1 --C.sub.20 -alkyl, C.sub.2 --C.sub.20 -alkenyl, C.sub.2 --C.sub.20 -alkynyl and --(CH.sub.2).sub.p --A, where p is an integer from 0 to 6 and A, which is unsubstituted or substituted by one or more C.sub.1 -C.sub.6 -alkyls, is a 3- to 20-membered hydrocarbon ring entails reacting a halosilicon compound of the formula II SiX.sub.4 (II) where X is fluorine, chlorine, bromine and iodine, with compounds of the formula III and IV, or with an anhydride of the formula V and the compound of the formula IV ##STR2## where R.sup.1 and R.sup.2, and Z have the above meanings, M is a metal of main group one and two.

    摘要翻译: 制备式I的硅烷的方法R1nSiR2m(Ⅰ)其中R1为-OY,n为1至3的整数,R2为1至3的整数,n + m = 4,以及 Y和Z各自独立地为未取代的或单取代或多卤取代的C 1 -C 20 - 烷基,C 2 -C 20 - 烯基,C 2 -C 20 - 炔基和 - (CH 2)p A,其中p是0的整数 至6和A,其是未取代的或被一个或多个C 1 -C 6烷基取代的是3至20元烃环,其中使X为氟,氯, 溴和碘与式III和IV的化合物或与式V的酸酐和式IV的化合物MR2(III)的化合物HR1(IV)其中R1和R2以及Z具有 在上述含义中,M为主要组1和2的金属。