Use of Polycarboxylate-Based Flow Agents for Anhydrite-Based Flow Screeds
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    发明申请
    Use of Polycarboxylate-Based Flow Agents for Anhydrite-Based Flow Screeds 审中-公开
    基于聚羧酸盐的流动剂用于基于无水石膏的流动筛

    公开(公告)号:US20090111913A1

    公开(公告)日:2009-04-30

    申请号:US12225564

    申请日:2007-03-27

    IPC分类号: C04B24/28 C04B111/62

    摘要: A plasticizer based on polycarboxylates is proposed, where the polycarboxylate component is a water-soluble, branched-chain and carboxyl-group-carrying copolymer which has at least one of the structural features selected from nitrogen-functionalized side chain and also, as linkage unit between main chain and side chain, an ester linkage, ether linkage and amide and/or imide linkage. The polycarboxylate component the molar ratio of acid groups to the side-group-carrying monomer is ≧2:1 and/or the side chain length n is

    摘要翻译: 提出了一种基于多羧酸盐的增塑剂,其中多羧酸盐组分是具有选自氮功能化侧链的结构特征中至少一个的水溶性,支链和含羧基的共聚物,并且作为连接单元 主链和侧链之间,酯键,醚键和酰胺和/或酰亚胺键。 多羧酸盐组分酸基与携带单体的单体的摩尔比为> = 2:1和/或侧链长度n为<25,自流平熨平板的硫酸盐含量≥0.5% ,基于无水石膏级分的总重量。 聚羧酸酯组分具有提供有阴离子官能团的主链,并且至少一个非离子侧链优选具有5,000至250,000g / mol的平均分子量Mn。 在这里使用粉末形式的增塑剂获得了特别好的液化效果,其基于自流平熨平板中的矿物成分的含量以0.1至5重量%的量存在。