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    • 4. 发明申请
    • AQUEOUS COPOLYMER DISPERSIONS
    • 所述水性共聚物分散体
    • WO1995005402A1
    • 1995-02-23
    • PCT/EP1994002636
    • 1994-08-09
    • BASF AKTIENGESELLSCHAFTSCHEHLMANN, VolkerSCHADE, ChristianSANNER, AxelSPERLING-VIETMEIER, Karin
    • BASF AKTIENGESELLSCHAFT
    • C08F02/16
    • C08F2/24A61K8/8152A61K9/0014A61K47/32A61Q5/06A61Q17/04
    • Aqueous copolymer dispersions are obtained by radical initiated copolymerisation or by copolymerisation initiated by the use of ionising radiation of: (A) 40 to 99 % by weight of one or several water-insoluble, monoethylenically unsaturated monomers; (B) 1 to 60 % by weight of one or several water-soluble, monoethylenically unsaturated monomers; and (C) 0 to 30 % by weight of one or several ethylenically polyunsaturated monomers, in an aqueous medium in the presence of 2 to 20 % by weight, in relation to the total monomer amount, of surface active compounds as emulsifiers. These dispersions have a mean particle size from 5 to 37 nm as determined by light scattering in the aqueous medium. Such dispersions are suitable for preparing varnishes, paints and adhesives, as film-builders in hair-care cosmetic compositions, as protective media against ultraviolet light and as carriers for substances contained in pharmaceuticals, cosmetics or agrochemicals.
    • 通过以下步骤获得的含水共聚物分散液自由基引发,启动或通过电离辐射共聚应用:(A)40至99重量%的一种或多种水不溶性,单烯属不饱和单体的%; (B)1至60重量%的一种或多种水溶性,单烯属不饱和单体的%和(C)0至30重量%的一种或多种多烯属不饱和单体的%在2存在下,在水性介质中以20重量%, 基于单体,表面活性化合物作为乳化剂,具有5为37nm的平均粒径,通过光散射在水性介质中确定的总量。 这样的分散体适合用于生产涂料,油漆和粘合剂,如发用化妆品制剂成膜剂,作为针对紫外线防御手段,以及用于在药物,化妆品或农业化学制剂成分的载体。