VERFAHREN ZUR HERSTELLUNG VON SiOH-FUNKTIONELLEN POLYSILOXANEN
    1.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON SiOH-FUNKTIONELLEN POLYSILOXANEN 有权
    VERFAHREN ZUR HERSTELLUNG VON SILICIUM-OH-FUNKTIONELLEN POLYSILOXANEN

    公开(公告)号:EP3016994A1

    公开(公告)日:2016-05-11

    申请号:EP14730938.9

    申请日:2014-06-18

    申请人: Wacker Chemie AG

    IPC分类号: C08G77/06 C08G77/16

    CPC分类号: C08G77/16 C08G77/06

    摘要: The invention relates to a continuous method for producing organopolysiloxanes having an OH content of 3.0 to 10.0 wt%. In said method, chlorosilanes, alkoxysilanes, water, and non-polar solvent soluble in water at no more than 1 g in 1 l water at 20°C and 1 bar are continuously added to the reaction mixture in a metered manner and reaction mixture is continuously discharged. In said method, in parallel with each other, the chlorosilanes are added in a metered manner at a weight fraction of 95% to 60% and the alkoxysilanes are added in a metered manner at a weight fraction of 5% to 40% with respect to the sum of chlorosilanes and alkoxysilanes. No polar solvents are added in a metered manner.

    摘要翻译: OH含量为3.0-10.0%(重量)的有机聚硅氧烷通过连续供给基本上不溶于水的氯硅烷,烷氧基硅烷,水和非极性溶剂,连续排出溶解在溶剂相中的含有机聚硅氧烷的反应混合物, 任选地从溶剂相中分离有机聚硅氧烷,其中基于氯硅烷和烷氧基硅烷的总重量,氯硅烷和烷氧基硅烷以相应的重量分数加入95-60%和5-40%。 该方法不使用极性溶剂,并产生具有改善闪点的产品,同时最大限度地降低废水处理的复杂性和费用。

    VERFAHREN ZUR KONTINUIERLICHEN HERSTELLUNG VON SILANTERMINIERTEN PREPOLYMEREN
    3.
    发明公开
    VERFAHREN ZUR KONTINUIERLICHEN HERSTELLUNG VON SILANTERMINIERTEN PREPOLYMEREN 有权
    PROCESS硅烷封端预聚物连续生产

    公开(公告)号:EP2408832A1

    公开(公告)日:2012-01-25

    申请号:EP10705880.2

    申请日:2010-03-01

    申请人: Wacker Chemie AG

    摘要: The invention relates to the continuous production of prepolymers (A) having end groups of the general formula (1): (R
    1 )
    a (R
    2 )
    3-a Si-X-A, wherein the end groups (1) can be identical or different, A is a two-band link group selected from - (R
    3 )N-CO-NH-, -HN-CO-N(R
    3 )-, -O-CO-HN-, -HN-CO-O-, S-CO-HN-, -HN-CO-S-, X is a two-band, linear or branched alkyl group, optionally substituted with halogen atoms, having 1-10 carbon atoms, R
    1 is an alkyl, cycloalkyl, alkenyl or aryl residue, optionally substituted with halogen, having 1-10 carbon atoms, R
    2 is an alkoxy residue -OR
    3 , an acetoxy residue -O-CO-R
    3 , an oxime radical -O-N=C(R
    3 )
    2 or an amine residue -NHR
    3 or -NR
    3
    2 R
    3 is hydrogen, a linear, cyclical or branched radical, substituted with heteroatoms, having 1 to 18 carbon atoms, R
    4 is a linear, branched or cross-linked polymer radical, a is 0, 1 or 2, and n is a whole number that is at least 1, wherein the prepolymers (A) are produced by a continuous method comprising at least one reaction of an isocyanate group (-N=C=O) having at least one isocyanate reactive group, that is carried out continuously in at least one reactor (R), that enables heat dissipation capacities of greater than 5kW/ (m
    3. K) in the laminar flow region.

    KONTINUIERLICHES VERFAHREN ZUR HERSTELLUNG SIOC-ENTHALTENDER VERBINDUNGEN
    5.
    发明公开
    KONTINUIERLICHES VERFAHREN ZUR HERSTELLUNG SIOC-ENTHALTENDER VERBINDUNGEN 无效
    连续用于生产SIOC,含氮化合物

    公开(公告)号:EP2686328A1

    公开(公告)日:2014-01-22

    申请号:EP12708135.4

    申请日:2012-03-09

    申请人: Wacker Chemie AG

    IPC分类号: C07F7/18

    CPC分类号: C07F7/188

    摘要: Organosilicon compounds bearing SiOC groups and having low residual silicon-bonded chlorine are prepared continuously by reacting a chlorosilane with alcohol and optionally water by contacting a gaseous phase containing alcohol with a liquid phase containing silane, organosilicon intermediates, organosilicon compounds containing SiOC groups and optional inert solvent in a reaction column in which the gas phase passes through the liquid phase in bubble form, or is provided with a vaporizer operating by a crossflow principle.