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    • 7. 发明授权
    • Linear polydimethylsiloxane-polyoxyalkylene block copolymers linked via Si-C groups and via carboxylic ester groups, a process for preparing them and their use
    • 通过Si-C基团和羧酸酯基团连接的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物,其制备方法及其用途
    • US07754778B2
    • 2010-07-13
    • US12179944
    • 2008-07-25
    • Wilfried KnottOliver ThumKlaus-Dieter KleinDagmar WindbielClaudia Hierath
    • Wilfried KnottOliver ThumKlaus-Dieter KleinDagmar WindbielClaudia Hierath
    • C08G77/06C08G77/04C08J9/00
    • C08G77/46
    • The invention provides linear polydimethylsiloxane-polyoxyalkylene block copolymers containing Si—C groups and carboxylic ester groups and having repeating (A1BA2B) units where A1 and A2 are two different polydimethylsiloxane units of the general formula (I) with a number of Si atoms N=(n+2) of 15≦N≦30 and NA1≠NA2 and B is a unit of the formula (II) —CH2—CH2—(CH2)a—CO[O—CH2—CH(R)]c—O-[D-O]e—[—CH2—CH(R)—O]d—OC—(CH2)b—CH2—CH2— (II) where R independently at each occurrence is H, —CH3 or —C2H5, a and b independently of one another are 0 to 20, c and d independently of one another are values≧1, e is 0 or 1 and D is a hydrocarbon radical having 2 to 10 C atoms, the overall molar weight of the unit of the formula II being from 600 to 10 000 g/mol, with the proviso that the average mixed molar weight of the polydimethylsiloxane units (A1+A2) is from >1665 to 0% to ≦50% by weight, based on the overall weight of [O—CH2—CH(R)] in B, a process for preparing them and their use.
    • 本发明提供含有Si-C基团和羧酸酯基并具有重复(A1BA2B)单元的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物,其中A1和A2是通式(I)的两种不同聚二甲基硅氧烷单元,其数量为Si原子N =( (II)-CH 2 -CH 2 - (CH 2)a -CO [O-CH 2 -CH(R)] c-O-(CH 2)n - [DO] e - [ - CH 2 -CH(R)-O] d-OC-(CH 2)b -CH 2 -CH 2 - (II)其中R各自独立地为H,-CH 3或-C 2 H 5,a和b 彼此独立地为0至20,c和d彼此独立地为值≧1,e为0或1,D为具有2至10个C原子的烃基,式II的单元的总摩尔量 是从600至10000g / mol,条件是聚二甲基硅氧烷单元(A1 + A2)的平均混合摩尔数为> 1665至<1998g / mol,[O-CH 2 -CH(R )],其中R = H为> 0%至&lt; nlE; 50%为重量 ht,基于B中[O-CH 2 -CH(R)]的总重量,其制备方法及其用途。
    • 9. 发明授权
    • Process and apparatus for continuous hydrosilylation
    • 连续氢化硅烷化的方法和装置
    • US06291622B1
    • 2001-09-18
    • US09470533
    • 1999-12-22
    • Jürgen DröseHubertus GeislerWolfgang HierscheKlaus-Dieter KleinWilfried KnottAndreas MehrwaldDagmar Windbiel
    • Jürgen DröseHubertus GeislerWolfgang HierscheKlaus-Dieter KleinWilfried KnottAndreas MehrwaldDagmar Windbiel
    • C08G7706
    • C08G77/46C08G77/38
    • A continuous process for preparing organomodified polysiloxanes by the transition metal-catalyzed addition of polysiloxanes containing SiH groups onto substances containing C—C multiple bonds, in particular a process for the continuous hydrosilylation of substances containing C—C multiple bonds, which comprises introducing the reactants, in the presence or absence of a homogeneous or heterogeneous catalyst, into a loop-like, heatable and coolable reaction circuit which has a static mixing element and/or a dynamic mixing element to mix starting materials and product formed, leaving the reaction mixture in the reaction circuit until a predetermined degree of conversion has been reached and subsequently transferring the reaction mixture still containing starting materials to a tube reactor to complete the reaction and taking it off via a receiver. In addition, a suitable industrial apparatus for carrying out the process of the invention is described.
    • 通过过渡金属催化加成含有SiH基团的聚硅氧烷到含有多个CC的物质的物质,特别是含有CC多键的物质的连续氢化硅烷化方法,用于制备有机改性聚硅氧烷的连续方法,其包括在存在下引入反应物 或不存在均相或多相催化剂,形成环状,可加热和可冷却的反应回路,其具有静态混合元件和/或动态混合元件以混合起始材料和形成的产物,将反应混合物留在反应回路中直到 已经达到预定的转化率,随后将仍含有原料的反应混合物转移到管式反应器中以完成反应,并通过接收器将其取出。 此外,描述了用于实施本发明的方法的合适的工业设备。