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    • 36. 发明授权
    • Microcapsules, the production and use thereof
    • 微胶囊,其生产和使用
    • US5596051A
    • 1997-01-21
    • US265211
    • 1994-06-24
    • Ekkehard JahnsBurkhardt Dames
    • Ekkehard JahnsBurkhardt Dames
    • B01J13/02A01N25/28B01J13/14B41M5/165C08F2/00C08F2/22C08F2/32C08F20/00C08F20/04C08F265/04C08F283/12B32B5/16B32B9/02B32B9/04
    • C08F265/04A01N25/28B01J13/14B41M5/165C08F283/12Y10T428/2984Y10T428/2985Y10T428/2987
    • Microcapsules which are composed of a core and of a shell of a polymer, the core containing at least one oil which can be emulsified in water, and which are obtainable by polymerization of oil-soluble monomer mixtures which contain(a) 1-100% by weight of acrylic anhydride, methacryic anhydride, itaconic anhydride, citraconic anhydride, dimethylmaleic anhydride, 4-vinylbenzoic anhydride, mixed carboxylic anhydrides, mixtures of the said anhydrides and/or more than 40% by weight of maleic anhydride,(b) 0-99% by weight of at least one monoethylenically unsaturated monomer which is different from the monomers of group (a),(c) 0-80% by weight of crosslinking monomers which have at least two monoethylenically unsaturated non-conjugated double bonds in the molecule, and(d) 0-20% by weight of water-soluble monoethylenically unsaturated monomersin the oil phase of a stable oil-in-water emulsion in the presence of polymerization initiators which form free radicals, where the temperature of the polymerizing reaction mixture may be continuously or periodically increased during the polymerization, a process for producing the microcapsules by polymerization of the abovementioned monomer mixtures in the oil phase of a stable oil-in-water emulsion in the presence of polymerization initiators which form free radicals, where the temperature of the polymerizing reaction mixture may be continuously or periodically increased during the polymerization, and the use of the microcapsules for the controlled release of the core material of the microcapsules as active substance by destruction of their shell, in particular by the action of bases.
    • 由核心和聚合物壳体组成的微胶囊,所述核心含有至少一种可在水中乳化的油,并且其可通过油溶性单体混合物的聚合获得,所述油溶性单体混合物含有(a)1-100% 丙烯酸酐,甲基丙烯酸酐,衣康酸酐,柠康酸酐,二甲基马来酸酐,4-乙烯基苯甲酸酐,混合羧酸酐,所述酸酐和/或大于40重量%的马来酸酐的混合物,(b) 99重量%的至少一种单烯属不饱和单体,其不同于(a),(c)的单体,0-80重量%的在分子中具有至少两个单烯属不饱和非共轭双键的交联单体 ,和(d)在稳定的水包油乳液的油相中,在形成自由基的聚合引发剂存在下,0-20重量%的水溶性单烯属不饱和单体,其中温度 在聚合过程中聚合反应混合物可以连续地或周期性地增加,通过在形成自由基的聚合引发剂的存在下,在稳定的水包油乳液的油相中聚合上述单体混合物来生产微胶囊的方法 其中聚合反应混合物的温度可以在聚合期间连续地或周期性地增加,并且使用微胶囊来控制释放微胶囊的核心材料作为活性物质,特别是通过其作用 的基地。
    • 37. 发明授权
    • Aqueous polymer dispersions, processes for preparing them, and their use
    • 水性聚合物分散体,制备方法及其用途
    • US08334350B2
    • 2012-12-18
    • US12746869
    • 2008-12-16
    • Ekkehard JahnsSebastian Roller
    • Ekkehard JahnsSebastian Roller
    • C08F6/00C08F2/24
    • C08F2/24C08F6/00Y10T428/31667C08L33/00
    • The present invention relates to an aqueous polymer dispersion whose dispersed addition polymer P comprises, copolymerized in free-radically polymerized form, at least one polar monomer having a water solubility of greater than 50 g/liter (measured at 20° C.), and obtainable by free-radically initiated aqueous emulsion polymerization, the polar monomer being metered to the reaction mixture during the polymerization process at a variable, i.e., nonconstant rate, for example in the sense of a rate gradient. The present invention further relates to processes for preparing these aqueous polymer dispersions, to their use as binders and/or in coatings, and also to coatings comprising the polymer dispersion of the invention.
    • 本发明涉及其分散的加成聚合物P包含以自由基聚合形式共聚的至少一种水溶性大于50g / l(在20℃下测量)的极性单体的聚合物水分散体,以及 可通过自由基引发的水乳液聚合获得,极性单体在聚合过程中以可变的,即非常数的速率例如以速率梯度的意义计量加入到反应混合物中。 本发明还涉及制备这些聚合物水分散体,用作粘合剂和/或涂料的方法,以及包含本发明聚合物分散体的涂料的方法。