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    • 2. 发明申请
    • HYDROPHILIC COPOLYSILOXANES AND METHOD FOR THE PRODUCTION THEREOF
    • 亲水性硅氧烷聚合物及其生产方法
    • WO2004056907A3
    • 2004-09-16
    • PCT/EP0314494
    • 2003-12-18
    • WACKER CHEMIE GMBHHERZIG CHRISTIANDORMEIER SIEGFRIED
    • HERZIG CHRISTIANDORMEIER SIEGFRIED
    • C08G18/32C08G18/61C08G18/73C08G77/26C08G18/28C08G77/46
    • C08G77/46C08G18/3275C08G18/61C08G18/73C08G77/452C08G77/458
    • Disclosed are novel hydrophilic copolysiloxanes that are produced by reacting organopolysiloxanes (1) comprising at least one Si-bonded hydrogen atom, preferably at least two Si-bonded hydrogen atoms, per molecule with mostly linear oligomeric or polymeric compounds (2) of general formula R -(A-CnH2n)m-A -H, wherein R represents a monovalent optionally substituted hydrocarbon radical to which Si-H groups can be attached in a hydrosilylation reaction, preferably a hydrocarbon radical containing a multiple aliphatic C-C bond, A represents a bivalent, polar organic radical selected among the group comprising -O-, -C(O)-O-, -O-C(O)-, -O-C(O)-O-, -C(O)-NH-, -NH-C(O)-, a urethane radical, and a urea radical, A represents a bivalent, polar organic radical selected among the group comprising -O-, -NH-, and -NR'- (R' representing a monovalent hydrocarbon radical containing 1 to 18 carbon atoms), n represents a whole number between 1 and 20, and m represents a positive whole number, in a first step, and reacting the obtained intermediate products (4) containing H-A groups with organic compounds (5) comprising at least two isocyanate groups per molecule in a second step, provided that the water content of compounds (1) and (2) which are used for producing the hydrophilic copolysiloxanes is less than 2000 ppm.
    • 描述的是新的亲水性硅氧烷共聚物在第一步骤中的有机聚硅氧烷(1)具有至少一个Si键合的氢原子制备的由每分子优选至少两个硅键合氢原子,(具有基本上线性的低聚或聚合化合物(2)通式 我):R <1> - (A-为C n H 2n)后毫安<1> -H,其中R <1>为一价任选取代的烃基,可以在氢化硅烷化反应附着到Si-H基,优选脂族CC -Mehrfachbindung指具有烃基,a是一个二价的极性有机基团选自O-的基团,-C(O)-O - , - OC(O)中选择 - , - OC(O)-O-,-C(O )-NH-,-NH-C(O) - ,氨基甲酸乙酯基团和脲基团,<1>为二价极性有机基团选自O-组成的组, - NH-和-NR' - (其中R“是一个 具有1至18个碳原子的一价烃基 预兆基),n是从1至20的整数,m是正整数,进行反应,因此,HA获得具有中间体(在第二步骤4)(用有机化合物<1>基团5) 每分子具有至少两个异氰酸酯基团,进行反应,条件是所述化合物的水含量用于制备的硅氧烷共聚物,条件亲水性(1)和(2)大于2000重量ppm以下。