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    • 3. 发明申请
    • METHOD FOR PRODUCING DISPERSIONS AND USE THEREOF
    • 生产分散体的方法及其用途
    • US20100081736A1
    • 2010-04-01
    • US12515393
    • 2007-11-15
    • Hongli WillimannJakob WolfisbergUlf Kehrer
    • Hongli WillimannJakob WolfisbergUlf Kehrer
    • C08L23/00C08L31/00C08L41/00C08L33/26C08L43/04C08L39/06C08L1/00C08L1/26C08L3/08C08L5/00
    • C08F2/24
    • The present invention pertains to a process for the preparation of aqueous dispersions which are stabilised with a water-insoluble stabilising colloid, characterised in that a) in a first step a water-insoluble stabilising colloid is prepared, with this being prepared, based on the amount of monomer used for the preparation of the stabilising colloid, by means of radical polymerization of a1) about 1 to 90 wt. % of at least one olefinically unsaturated monomer, containing at least one sulfate and/or sulfonate group, which optionally may be protonated, a2) about 5 to 99 wt. % of at least one olefinically unsaturated monomer with a water solubility at 20° C. of less than 50 g/l, and a3) up to 50 wt. % of at least one olefinically unsaturated monomer with a water solubility at 20° C. of more than 50 g/l, in water, followed by b) the addition of at least one further olefinically unsaturated monomer and at least one initiator, in which process by means of radical polymerization of the further olefinically unsaturated monomer an aqueous dispersion is obtained, on which c) optionally a residual monomer reduction is performed, with this being carried out by means of polymerization of residual monomers and/or by means of physical removal of the residual monomers and optionally further volatile organic components by means of the introduction of vapour and/or gas. The dispersions obtained in this manner can be converted into water-redispersible polymer powders with the aid of drying. Moreover, the invention pertains to the use of the water-insoluble stabilising colloid, the dispersion, and the water-redispersible polymer-powder.
    • 本发明涉及一种制备用水不溶性稳定胶体稳定的水分散体的方法,其特征在于:a)在第一步中制备水不溶性稳定胶体,基于 用于制备稳定胶体的单体的量,通过a1)约1-90wt。%的自由基聚合。 至少一种含有至少一种硫酸盐和/或磺酸盐基团的烯属不饱和单体的%,其任选地可被质子化,a2)约5至99重量% %的至少一种在20℃下的水溶性低于50g / l的烯属不饱和单体和a3)至多50wt。 %的至少一种在20℃下具有大于50g / l水溶性的烯属不饱和单体,在水中,然后b)加入至少一种其它烯属不饱和单体和至少一种引发剂,其中 通过进一步的烯属不饱和单体的自由基聚合,获得水分散体的方法,其中c)任选地进行残余单体还原,其中通过残余单体的聚合和/或通过物理去除 的残余单体和任选地通过引入蒸气和/或气体的其它挥发性有机组分。 以这种方式获得的分散体可借助于干燥转化为水可再分散的聚合物粉末。 此外,本发明涉及水不溶性稳定胶体,分散体和水分散性聚合物粉末的用途。
    • 4. 发明授权
    • Method for producing dispersions and use thereof
    • 分散体的制造方法及其用途
    • US08497315B2
    • 2013-07-30
    • US12515393
    • 2007-11-15
    • Hongli WillimannJakob WolfisbergUlf Kehrer
    • Hongli WillimannJakob WolfisbergUlf Kehrer
    • C08F2/24
    • C08F2/24
    • The present invention pertains to a process for the preparation of aqueous dispersions which are stabilized with a water-insoluble stabilizing colloid, characterized in that a) in a first step a water-insoluble stabilizing colloid is prepared, with this being prepared, based on the amount of monomer used for the preparation of the stabilizing colloid, by means of radical polymerization, followed by b) the addition of at least one further olefinically unsaturated monomer and at least one initiator, in which process by means of radical polymerization of the further olefinically unsaturated monomer an aqueous dispersion is obtained, on which c) optionally a residual monomer reduction is performed, with this being carried out by means of polymerization of residual monomers and/or by means of physical removal of the residual monomers and optionally further volatile organic components by means of the introduction of vapor and/or gas.
    • 本发明涉及一种制备用水不溶性稳定胶体稳定的水分散体的方法,其特征在于:a)在第一步中制备水不溶性稳定胶体,基于 用于制备稳定胶体的单体的量,通过自由基聚合,然后b)加入至少一种其它烯属不饱和单体和至少一种引发剂,其中通过进一步烯属的自由基聚合 不饱和单体获得水分散体,其中c)任选地进行残余单体还原,其中通过残余单体的聚合和/或通过物理除去残余单体和任选的其它挥发性有机组分进行 通过引入蒸气和/或气体。