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    BOTH-TERMINAL MODIFIED POLYSILOXANE MACROMONOMER AND A METHOD FOR PREPARING THE SAME
    8.
    发明公开
    BOTH-TERMINAL MODIFIED POLYSILOXANE MACROMONOMER AND A METHOD FOR PREPARING THE SAME 审中-公开
    双末端改性聚硅氧烷大分子单体及其制备方法

    公开(公告)号：EP3290462A1

    公开(公告)日：2018-03-07

    申请号：EP17188327.5

    申请日：2017-08-29

    Applicant: Shin-Etsu Chemical Co., Ltd.

    Inventor： Ichinohe, Shoji

    IPC: C08G77/46 ,  G02B1/04

    CPC classification number: C08G77/388 ,  C08G77/458 ,  C08G77/46 ,  G02B1/041 ,  G02B1/043 ,  C08L83/04 ,  C08L71/02

    Abstract: One of the purposes of the present invention is to provide a polysiloxane macromonomer which has high hydrophilicity and a narrow molecular weight distribution and is usable as a material for ophthalmic lenses. The present invention provides a method for preparing a both-terminal modified polysiloxane macromonomer represented by the following average structural formula [I]:

             RMe 2 SiO(Me 2 SiO) p SiMe 2 R     [I]

    wherein R represents -C 3 H 6 O(C 2 H 4 O) q C(=O)NH(C 2 H 4 O) s C(=O)C(Q)=CH 2 , Me is a methyl group, p is an integer of from 40 to 100, q is an integer of from 5 to 10, s is an integer of from 1 to 3 and Q is a methyl group or a hydrogen atom,
    wherein the method comprises steps of
    (a) reacting a polysiloxane which has polyoxyethylenes at both terminals and is represented by the following average structural formula [II]:

             R"Me 2 SiO(Me 2 SiO) p SiMe 2 R"     [II]

    wherein R" represents -C 3 H 6 O(C 2 H 4 O) q H and Me, p and q are as defined above,
    with a compound represented by the following general formula [III]:

             OCN(C 2 H 4 O) s C(=O)C(Q)=CH 2      [III]

    wherein Q and s are as defined above,
    in the presence of a catalyst,
    (b) subjecting the mixture obtained in step (a) to liquid-liquid extraction by hexane and acetonitrile, and
    (c) removing hexane from a hexane phase to obtain the both-terminal modified polysiloxane macromonomer represented by the average structural formula [I].
    Further, the present invention provides a both-terminal modified polysiloxane macromonomer prepared according to the aforesaid method.

    Abstract translation: 本发明的目的之一是提供具有高亲水性和窄分子量分布的聚硅氧烷大分子单体，并且可用作眼科镜片的材料。 本发明提供了制备由以下平均结构式[I]表示的两末端改性聚硅氧烷大分子单体的方法：RMe2SiO（Me2SiO）pSiMe2R [I]其中R表示-C3H6O（C2H4O）qC（= O）NH（C2H4O ）sC（= O）C（Q）= CH 2，Me为甲基，p为40至100的整数，q为5至10的整数，s为1至3的整数，Q （a）使在两末端具有聚氧乙烯并且由以下平均结构式[II]表示的聚硅氧烷反应：R“Me2SiO（Me2SiO）pSiMe2R”[II ]（其中R“表示-C 3 H 6 O（C 2 H 4 O）q H且Me，p和q如上所定义）与由以下通式[III]表示的化合物反应：OCN（C 2 H 4 O）sC（= O）C（Q）= CH 2 [III]其中Q和s如上所定义，在催化剂存在下，（b）su 将步骤（a）中得到的混合物用己烷和乙腈进行液液萃取，（c）从己烷相中除去己烷，得到平均结构式[I]所示的两末端改性聚硅氧烷大分子单体。 此外，本发明提供了根据上述方法制备的两末端改性聚硅氧烷大分子单体。

    EMULSION OF CROSS-LINKED AMINOSILOXANE POLYMER
    10.
    发明公开
    EMULSION OF CROSS-LINKED AMINOSILOXANE POLYMER 审中-公开

    公开(公告)号：EP3145486A4

    公开(公告)日：2018-01-31

    申请号：EP15796769

    申请日：2015-03-16

    Applicant: DOW CORNING

    Inventor： FENG QIAN ,  JOHNSON BETHANY ,  LI ZHI ,  LILES DONALD ,  NGUYEN KIMMAI THI ,  ROGGOW II TIMOTHY ANDREW

    IPC: C08G77/388 ,  C08G77/26 ,  C08L83/08

    CPC classification number: A61K8/898 ,  A61K8/06 ,  A61K8/891 ,  A61Q5/06 ,  C08G77/26 ,  C08G77/388 ,  C08K5/1539 ,  C08K5/17 ,  C08L83/08 ,  C08L83/00

    Abstract: An emulsion includes a liquid continuous phase and a dispersed phase including a cross-linked aminosiloxane polymer. The cross-linked aminosiloxane polymer includes a first siloxane backbone, a second siloxane backbone, and at least one intramolecular structure cross-linking a silicon atom of the first siloxane backbone and a silicon atom of the second siloxane backbone. The intramolecular structure has the chemical structure: (Formula (I)) wherein X is chosen from the following groups; (Formula (II); (Formula (III)); or (Formula (IV)) wherein each R is independently a C-1-C-10 hydrocarbon group, each R1 is independently a C-1-C-10 hydrocarbon group, each R2 is independently a hydrogen atom, OH, a C-1-C-12 hydrocarbon group, a phenyl group, R′(OR″)m wherein m is 1 to 3, or R′OH, wherein each of R′ and R″ is independently an alkyl group, and wherein a is 0 or 1. This disclosure also provides a method of forming the emulsion.

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