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发明授权
CN1939947B 新型聚合物以及使用该聚合物的水泥混合剂 失效 - 权利终止

新型聚合物以及使用该聚合物的水泥混合剂
摘要：
本发明提供一种以不饱和羧酸系单体和不饱和聚亚烷基二醇系单体作为单体成分，具有与以往的水泥混合剂用共聚物不同的结构的新型聚合物及其混合物、以及使用它的分散性能更高的水泥混合剂。本发明的新型聚合物基本上具有聚亚烷基二醇链和与之键合的聚合物部位。其他的聚合物具有这种结构单元作为重复单元。另外，其他的聚合物具有2个聚亚烷基二醇链和将它们连结的聚合物部位。在这些聚合物中，构成上述聚合物部位的不饱和单体中的至少1种是不饱和羧酸系单体或者不饱和聚亚烷基二醇系单体。本发明的水泥混合剂中含有这些聚合物或者它们的混合物。
摘要（英）：

The present invention provides a novel polymer, and a mixture and a cement admixture thereof. The cement admixture has higher dispersibility compared to the previous ones. The novel polymer of the present invention has a different structure from the conventional copolymers used for cement admixtures, using an unsaturated carboxylic acid monomer and an unsaturated polyalkylene glycol monomer as the monomer components. The novel polymer of the present invention basically contains a polyalkylene glycol chain and a polymer segment bonded to the chain. Another type of the novel polymer of the present invention contains two polyalkylene glycol chains and a polymer segment connecting the chains. In these polymers, at least one of unsaturated monomers constituting the polymer segment is an unsaturated carboxylic acid monomer or an unsaturated polyalkylene glycol monomer. The cement admixture of the present invention comprises a polymer, made from these monomers, or a mixture thereof.

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