Statistic comb polymers, method for producing the same and their use
    3.
    发明申请
    Statistic comb polymers, method for producing the same and their use 失效
    统计梳形聚合物,其制备方法及其用途

    公开(公告)号:US20070043190A1

    公开(公告)日:2007-02-22

    申请号:US10567260

    申请日:2004-08-17

    IPC分类号: C08F118/02

    摘要: Statistic comb polymers obtainable by the radical copolymerization of a vinylic poly(alkylenoxide) compound (A) with an ethylenically unsaturated monomer compound (B) according to the catalytic chain transfer method (CCT). The comb polymers are extremely suitable for hydraulic binder suspensions based on cement, lime, gypsum and anhydrite as they have, for the same dosage, an improved water reducing power over conventional flow agents. The corresponding building material mixtures are characterized by a substantially reduced stickiness and plastic viscosity once said comb polymers are added, which dramatically improves the plasticity of very cement-rich building material mixtures, such as concretes. The building material mixtures using the inventive flow agents have a considerably increased slump flow and an increased shear-thinning behavior as compared to conventional concretes without the tendency to segregate.

    摘要翻译: 通过乙烯基聚(亚烷基氧化物)化合物(A)与烯属不饱和单体化合物(B)根据催化链转移法(CCT)自由基共聚得到的统计梳形聚合物。 梳状聚合物非常适用于基于水泥,石灰,石膏和无水石膏的水硬性粘合剂悬浮液,因为它们具有相同的剂量,比常规流动剂具有更好的减水能力。 相应的建筑材料混合物的特征在于一旦所述梳状聚合物被加入时,其粘度和塑性粘度显着降低,这显着地改善了非常水泥的建筑材料混合物如混凝土的可塑性。 使用本发明的流动剂的建筑材料混合物与常规混凝土相比具有显着增加的坍落度流动和增加的剪切稀化行为,而没有倾向于分离。