会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明申请
    • Telomerisation Of Cyclic Polyorganosiloxanes
    • 环状聚有机硅氧烷的凝聚
    • US20160145395A1
    • 2016-05-26
    • US14900218
    • 2014-06-20
    • DOW CORNING CORPORATION
    • Avril SurgenorRichard TaylorMarek Cypryk
    • C08G77/04
    • C08G77/045C08G77/08C08G77/18
    • 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.
    • 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。