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    PROCESS FOR REMOVING AN IMPURITY FROM A SILOXANE
    9.
    发明公开
    PROCESS FOR REMOVING AN IMPURITY FROM A SILOXANE 有权
    程序用于去除硅氧烷的杂质

    公开(公告)号：EP2640769A1

    公开(公告)日：2013-09-25

    申请号：EP11785880.3

    申请日：2011-11-14

    申请人： Dow Corning Corporation

    发明人： FOSDICK, Robert, L. ,  KAMIN, Stephen, A. ,  VO, Hanh, X. ,  WEICKERT, Tylyn, J.

    IPC分类号： C08G77/34

    CPC分类号： C07F7/20 ,  B01D11/04 ,  B01J20/28004 ,  B01J20/28023 ,  C08G77/34

    摘要： A process for removing an impurity from a siloxane comprising i) flowing a first liquid through a fiber bundle comprising a plurality of fibers extending lengthwise in a conduit, wherein the bundle has an upstream end and a downstream end, and the first liquid flows in a direction from the upstream end of the bundle to the downstream end; and ii) while continuing (i), flowing a second liquid comprising a siloxane and an impurity through the fiber bundle in a direction from the upstream end of the bundle to the downstream end of the bundle to effect transfer of at least a portion of the impurity from the second liquid to the first liquid, wherein the first liquid and the second liquid are substantially immiscible.

    ORGANOSILOXANE BLOCK COPOLYMER
    10.
    发明公开
    ORGANOSILOXANE BLOCK COPOLYMER 审中-公开
    有机硅氧烷嵌段共聚物

    公开(公告)号：EP2619247A1

    公开(公告)日：2013-07-31

    申请号：EP11761808.2

    申请日：2011-09-21

    申请人： Dow Corning Corporation

    发明人： HORSTMAN, John ,  NORRIS, Ann ,  SWIER, Steven

    IPC分类号： C08G77/14 ,  C08G77/26 ,  C08G77/48 ,  C08G77/54 ,  H01L23/29 ,  H01L33/56 ,  H01L21/67

    CPC分类号： C09D183/10 ,  C08G77/04 ,  C08G77/14 ,  C08G77/26 ,  C08G77/48 ,  C08G77/54 ,  C08G77/70 ,  C08G77/80 ,  H01L27/14 ,  H01L31/0203 ,  H01L31/0481 ,  H01L33/52 ,  H01L33/56 ,  Y02E10/50

    摘要： An organosiloxane block copolymer includes 65 to 90 mol% of diorganosiloxane units having the formula R
    1
    2 SiO
    2/2 (I). These diorganosiloxane units are arranged in linear blocks which have an average of from 10 to 400 diorganosiloxane units per linear block. The organosiloxane block copolymer also includes 10 to 35 mol% of siloxane units that have the average formula R
    2
    x (OR
    3 )
    y SiO
    (4-x-y)/2 (II). The siloxane units are arranged in nonlinear blocks having at least 2 siloxane units per nonlinear block wherein 0.5 ≤ x ≤ 1.5 and 0 ≤ y ≤ 1. In addition, each R
    1 is independently a C
    1 to C
    10 hydrocarbyl, each R
    2 is independently an aryl or C
    4 to C
    10 hydrocarbyl, at least 50 mol% of R
    2 are aryl, and each R
    3 is independently R
    1 or H. Moreover, the organosiloxane block copolymer has a light transmittance of at least 95%.

    摘要翻译： 有机硅氧烷嵌段共聚物包含65至90摩尔％的具有式R 1 2 SiO 2/2（I）的二有机硅氧烷单元。 这些二有机硅氧烷单元排列成每线性嵌段平均具有10-400个二有机硅氧烷单元的线性嵌段。 有机硅氧烷嵌段共聚物还包含10至35摩尔％具有平均式R 2 x（OR 3）y SiO（4-x-y）/ 2（II）的硅氧烷单元。 硅氧烷单元排列在非线性嵌段中，每个非线性嵌段具有至少2个硅氧烷单元，其中0.5≤x≤1.5且0≤y≤1。另外，每个R 1独立地为C 1至C 10烃基，每个R 2为 独立地为芳基或C 4至C 10烃基，至少50mol％的R 2为芳基，并且每个R 3独立地为R 1或H.此外，有机硅氧烷嵌段共聚物具有至少95％的透光率。