High-grade filling and retanning agent CDF was prepared by condensation polymerization reaction of urea,cyanuramide and dicyandimide.The property and application of the product were discussed.

• 本文主要论述了用脲、双氰胺、三聚氰胺等原料经缩聚反应制备填充复鞣剂CDF的方法及其性能与应用。