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    • 3. 发明授权
    • Compositions comprising an organic polymer as the matrix and inorganic particles as the filler, process for the preparation thereof and applications of the same
    • 作为基质的有机聚合物和无机粒子作为填料的组合物,其制备方法及其应用
    • US07879938B2
    • 2011-02-01
    • US11822862
    • 2007-07-10
    • Harald HägerFranz-Erich BaumannWolfgang LortzWerner HössMichael WickerRüdiger CarloffUwe Schneider
    • Harald HägerFranz-Erich BaumannWolfgang LortzWerner HössMichael WickerRüdiger CarloffUwe Schneider
    • C08K9/06C08L69/00C08L67/00C08L77/00
    • D01F1/10B82Y30/00C08J3/215C08J5/005C08K9/04C08L77/00D01F6/60D01F6/62
    • Compositions comprising an organic polymer as the matrix and inorganic particles as the filler and exhibiting in mixture a) 20 to 99.9% by wt. of an organic polymer and b) 0.1 to 80% by wt. of inorganic particles, where the sum of the constituents a) and b) amounts to 100% by wt.; and optionally c) 0 to 100 parts by weight of b) of various additives, in which case the content of the additives c) relates to the sum of a) and b), calculated as 100 parts by weight. characterized in that the composition can be obtained by incorporating particles and optionally other additives into the polymer matrix, in which case the particles to be incorporated i) are aggregates of globular primary particles; ii) the size of the primary particles is in a range of 0.5 nm to less than 100 nm; iii) the volume-weighted median value d50 of the particles is in a range of greater than 0.50 μm to 0.5 μm, determined by means of static light scattering; and iv) the inorganic particles are modified with functional groups, the inorganic particles exhibiting at least three types of functional groups of varying reactivity. The compositions can be prepared in a number of way, for example, by reprecipitation from the dissolved state or by mixing in an extruder and are used for preparing fibers, films and shaped articles with improved mechanical properties.
    • 包含作为基质的有机聚合物和作为填料的无机颗粒和以混合物表示的组合物a)20-99.9重量% 的有机聚合物,和b)0.1-80重量% 的无机颗粒,其中组分a)和b)的总量相当于100重量%。 并且任选地c)0至100重量份的b)各种添加剂,在这种情况下,添加剂c)的含量涉及以100重量份计算的a)和b)之和。 其特征在于,可以通过将颗粒和任选的其它添加剂并入聚合物基质中来获得组合物,在这种情况下,待加入的颗粒i)是球状初级颗粒的聚集体; ii)一次颗粒的尺寸在0.5nm至小于100nm的范围内; iii)颗粒的体积加权中值d50在通过静态光散射确定的大于0.50μm至0.5μm的范围内; 和iv)无机颗粒用官能团改性,无机颗粒表现出至少三种具有不同反应性的官能团。 组合物可以以多种方式制备,例如通过从溶解状态再沉淀或通过在挤出机中混合,并用于制备具有改善的机械性能的纤维,薄膜和成型制品。