Sulfonic acid compound having cyclopentadiene skeleton and composition comprising same and cement
申请人:JAPAN SYNTHETIC RUBBER CO., LTD.
公开号:EP0108654A1
公开(公告)日:1984-05-16
Compounds having a cyclopentadiene skeleton and at least one sulfonic acid group are novel, and produced by subjecting cyclopentadiene, dicyclopentadiene and/or hydroxydicyclopentadiene to sulfonation, and subjecting the same, before or after the sulfonation, to reaction with alkylbenzene, polymerization and/or condensation through an aldehyde. The aforesaid compounds are useful as dispersants for cement.
By incorporating a polymer emulsion into a slurry composition comprising a powder and a dispersant having at least one sulfonic acid group the proportion of said polymer emulsion being 0.05 to 50 parts by weight per 100 parts by weight of said dispersant, the dispersing effect of said dispersant is improved, the fluidizing effect of the dispersant is further enhanced, the slump loss is made very small, and the workability becomes good.
具有环戊二烯骨架和至少一个磺酸基团的化合物是新型化合物,其生产方法是将环戊二烯、双环戊二烯和/或羟基双环戊二烯进行磺化,并在磺化之前或之后使其与烷基苯反应、聚合和/或通过醛缩合。上述化合物可用作水泥的分散剂。
通过将聚合物乳液加入由粉末和至少有一个磺酸基团的分散剂组成的浆料组合物中(所述聚合物乳液的比例为 0.05 至 50 重量份/100 重量份所述分散剂),可以改善所述分散剂的分散效果,进一步提高分散剂的流化效果,使坍落度损失非常小,并具有良好的可加工性。