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    • 4. 发明申请
    • LINEAR POLYDIMETHYLSILOXANE-POLYOXYALKYLENE BLOCK COPOLYMERS LINKED VIA SIC GROUPS AND VIA CARBOXYLIC ESTER GROUPS, A PROCESS FOR PREPARING THEM AND THEIR USE
    • 线性聚二甲基硅氧烷 - 聚氧乙烯嵌段共聚物通过SIC基团和通过羧酸酯基团连接,其制备方法及其使用
    • US20090030097A1
    • 2009-01-29
    • 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 10000 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)-CH2-CH2-(CH2)a-CO [O-CH2-CH(R)] cO的单元,其中n为0≤n≤30且NA1 < - [DO] e - [ - CH 2 -CH(R)-O] d-OC-(CH 2)b -CH 2 -CH 2 - (II)其中R在每次出现时独立地为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,单位的总摩尔量 式II为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)],相对于B中的[O-CH 2 -CH(R)]的总重量,RH> 0重量%〜<50重量% 一个准备和使用它们的过程。