Telomerisation Of Cyclic Polyorganosiloxanes
    9.
    发明申请
    Telomerisation Of Cyclic Polyorganosiloxanes 审中-公开
    环状聚有机硅氧烷的凝聚

    公开(公告)号:US20160145395A1

    公开(公告)日:2016-05-26

    申请号:US14900218

    申请日:2014-06-20

    CPC classification number: C08G77/045 C08G77/08 C08G77/18

    Abstract: A telomerisation process is used to prepare a reaction product containing a noncyclic hydrocarbonoxy-functional polyorganosiloxane. The process includes heating a composition including (A) a cyclic polyorganosiloxane, (B) a silane, and (C) a Lewis Acid telomerisation catalyst. The cyclic polyorganosiloxane has formula [(R12SiO)2/2]n, where subscript n is an integer of 4 or more, and each R1 is independently H, a hydrocarbyl group, or a halogenated hydrocarbyl group. The silane has formula R2(4-m)Si(OR3)m, where subscript m is an integer from 1 to 4, each R2 is independently H, a hydrocarbyl group, or a halogenated hydrocarbyl group, and each R3 is independently a hydrocarbyl group. The telomerisation catalyst is a Lewis Acid of formula [M]x+[R4S03−]X where M is a metal atom selected from Aluminum (Al), Bismuth (Bi), Cerium (Ce), Chromium (Cr), Iron (Fe), Gallium (Ga), Indium (In), Lanthanum (La), Scandium (Sc), Samarium (Sm), and Ytterbium (Yb); R4 is selected from an oxygen atom (O) and CF3; and x represents a number up to a maximum valence of the metal atom selected for M.

    Abstract translation: 调聚方法用于制备含有非环状烃氧基官能聚有机硅氧烷的反应产物。 该方法包括加热包含(A)环状聚有机硅氧烷,(B)硅烷和(C)路易斯酸调聚催化剂的组合物。 环状聚有机硅氧烷具有式[(R 12 SiO)2/2] n,其中下标n为4以上的整数,每个R 1独立地为H,烃基或卤代烃基。 硅烷具有式R 2(4-m)Si(OR 3)m,其中下标m为1至4的整数,每个R 2独立地为H,烃基或卤代烃基,并且各R 3独立地为烃基 组。 调聚催化剂是式[M] x + [R4S03-] X的路易斯酸,其中M是选自铝(Al),铋(Bi),铈(Ce),铬(Cr),铁(Fe) ,镓(Ga),铟(In),镧(La),钪(Sc),钐(Sm)和镱(Yb); R4选自氧原子(O)和CF 3; x表示选择为M的金属原子的最大化合价数。

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