Thermal disproportionation of cycloalkylsilanes
    41.
    发明公开
    Thermal disproportionation of cycloalkylsilanes 失效
    Thermische Disproportionung von Cyczalkylsilanen。

    公开(公告)号:EP0542499A1

    公开(公告)日:1993-05-19

    申请号:EP92310234.7

    申请日:1992-11-09

    IPC分类号: C07F7/12

    CPC分类号: C07F7/125

    摘要: The present invention is a process for the thermal disproportionation of cycloalkylsilanes containing at least one hydrogen atom and one halogen atom bonded to a single silicon atom. The process involves heating the cycloalkylsilanes in a liquid phase to a temperature within a range of about 250°C. to 450°C. The present process is especially useful for the thermal disproportionation of cyclopentyldichlorosilane to dicyclopentyldichlorosilane and for the thermal disproportionation of cyclohexyldichlorosilane to dicyclohexyldichlorosilane.

    摘要翻译: 本发明是一种含有至少一个氢原子和一个与单个硅原子结合的卤素原子的环烷基硅烷热歧化的方法。 该方法包括将液相中的环烷基硅烷加热到约250℃至450℃的温度范围内。本方法特别适用于环戊基二氯硅烷对二环戊基二氯硅烷的热歧化和环己基二氯硅烷对二环己基二氯硅烷的热歧化 。

    Method for preparing and stabilizing acryl-functional halosilanes
    42.
    发明公开
    Method for preparing and stabilizing acryl-functional halosilanes 失效
    制备和稳定丙烯酸功能性HALOSILAN的方法

    公开(公告)号:EP0323436A3

    公开(公告)日:1990-10-31

    申请号:EP89100045.7

    申请日:1989-01-03

    IPC分类号: C07F7/14

    CPC分类号: C07F7/14 C07F7/121

    摘要: There is disclosed a method for preparing acryl-functional halosilanes by reacting a halosilane with an acryloxy or methacryloxy-functional organic compound in the presence of a platinum hydrosilation catalyst and a stabilizing amount of phenothiazine, wherein the reaction mixture is contacted with an oxygen-containing inert gas. The present invention further discloses a method for stabilizing the above reaction mixture by contacting it with the oxygen-containing gas.

    Method for stabilizing unsaturated organosilicone compositions
    43.
    发明公开
    Method for stabilizing unsaturated organosilicone compositions 失效
    Methode zur Stabilisierung voneingesättigtenOrganosilicium-Zusammensetzungen。

    公开(公告)号:EP0317211A2

    公开(公告)日:1989-05-24

    申请号:EP88310667.6

    申请日:1988-11-11

    IPC分类号: C07F7/18 C08K5/32

    CPC分类号: C07F7/1872

    摘要: A method for stabilizing an unsaturated organosilicone is disclosed wherein a stabilizing amount of a hydroxylamine compound is added to the organosilicone to prevent thermal polymerization of the latter. The organosilicone may be an alkoxysilane or an organopolysiloxane having in its molecule a reactive organic group- bearing at least one radical selected from acryloxy, methacryloxy, acrylamide, methacrylamide, styryl or vinylbenzyl radicals. The hydroxylamine compound may be added either to the organosilicone or during the preparation of the alkoxysilane from its respective reactants.

    摘要翻译: 公开了一种稳定不饱和有机硅氧烷的方法,其中向有机硅氧烷中加入稳定量的羟胺化合物以防止后者的热聚合。 有机硅氧烷可以是在其分子中具有至少一个选自丙烯酰氧基,甲基丙烯酰氧基,丙烯酰胺,甲基丙烯酰胺,苯乙烯基或乙烯基苄基的基团的反应性有机基团的有机聚硅氧烷。 羟胺化合物可以从其各自的反应物加入到有机硅氧烷中或在烷氧基硅烷的制备过程中。

    Method for preparation of alkoxysilanes having reduced halide content
    44.
    发明公开
    Method for preparation of alkoxysilanes having reduced halide content 有权
    一种用于制备烷氧基硅烷工艺具有降低Halidgehalt

    公开(公告)号:EP0974596A2

    公开(公告)日:2000-01-26

    申请号:EP99112751.5

    申请日:1999-07-01

    IPC分类号: C07F7/08 C07F7/18

    CPC分类号: C07F7/20

    摘要: A method is disclosed for preparing an alkoxysilane having reduced halide content. Said method involves contacting a first mixture comprising an alkoxysilane and residual halide with a second mixture comprising 1.5 to 15 moles of an alkyl alcohol per mole of residual halide, said alcohol having 1 to 4 carbon atoms and 0.1 to 5 moles of an orthoformate per mole of residual halide, to form a final mixture comprising additional alkoxysilane and lower boiling species and then separating the lower boiling species and the alkoxysilane. The remaining residual halide may be further contacted with metal alkoxides to achieve even greater halide content reduction. Alkoxysilanes produced herein are useful as catalyst modifiers to manufacture polypropylene.

    Hydrosilation method using unsaturated accelerators
    47.
    发明公开
    Hydrosilation method using unsaturated accelerators 失效
    氢化硅烷化不饱和加速器

    公开(公告)号:EP0850943A3

    公开(公告)日:1999-07-21

    申请号:EP97121416.8

    申请日:1997-12-05

    IPC分类号: C07F7/14

    CPC分类号: C07F7/14

    摘要: A hydrosilation process is disclosed where a silicon hydride is reacted with an unsaturated reactant in the presence of a platinum catalyst and an accelerator selected from 1,7-octadiyne, 1,5-hexadiyne, cyclooctadiene, 5-vinyl-2-norbornene, 4-vinyl-1-cyclohexene, 2,5-bis(t-butylperoxy)-2,5-dimethylhexane, furan, 4H-pyran-4-one, cis-4,7-dihydro-1,3-dioxepin, maleic anhydride and dimethyldiallylmalonate. The accelerators are especially useful for facilitating the hydrosilation of unsaturated reactants where the unsaturation is in the internal portion of the reactant's structure, for example, as in cyclopentene and cyclohexene.

    Process for preparation of organodisilanes
    50.
    发明公开
    Process for preparation of organodisilanes 失效
    Verfahren zur Herstellung von Organodisilanen

    公开(公告)号:EP0798301A1

    公开(公告)日:1997-10-01

    申请号:EP97103592.8

    申请日:1997-03-05

    IPC分类号: C07F7/08

    CPC分类号: C07F7/0821

    摘要: A process is described for the preparation of organodisilanes. The process comprises contacting magnesium metal with a mixture comprising diethylene glycol dibutyl ether, an organic halide and a halodisilane at a temperature within a range of 0 to 250°C. The process provides a high yield of organodisilane product that is easily recoverable. Our claimed process is especially useful for converting halodisilanes in a high-boiling mixture resulting from the direct process for making organosilane monomers into hexaorganodisilanes.

    摘要翻译: 有机硅烷制备的一步法。 包括:(i)使Mg金属与混合物接触。 包括:(a)二甘醇二丁醚; (b)式(I)的有机卤化物; 和(c)0-250℃下式(II)的二卤乙硅烷。R1X(I)R2aSi2X6-a(Ⅱ)R1,R2 = 1-20C单价烃gp。 X = Cl或Br; 和a = 0-5。 还要求保护的是六甲基二硅烷制备的一步法。