A kind of cationic monomer is copolymerized with ethylene monomers in solution, in which the auxiliaries and initator are added, then the cationic resin retanning agent is abtained.

• 一种阳离子单体与含乙烯基类单体,在助剂、引发剂存在条件下进行溶液聚合,制得阳离子树脂复鞣剂。