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1.发明授权Process for producing an aqueous dispersion of a water-soluble cationic polymer 失效一种制备水溶性阳离子聚合物的水性分散体的方法
公开(公告)号：EP0814099B1
公开(公告)日：2000-03-01
申请号：EP97109533.6
申请日：1997-06-12
发明人： Matsushima, Shouji, c/o Kurita Water Ind. Ltd. , Kubo, Katsutoshi, c/o Kurita Water Ind. Ltd. , Murano, Masayuki, c/o Kurita Water Ind. Ltd. , Shimada, Satoko, c/o Kurita Water Ind. Ltd.
IPC分类号： C08F8/12
CPC分类号： C08F8/12 , C08F226/02 , C08F220/44 , C08F8/32 , C08F126/02
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2.发明公开Process for producing an aqueous dispersion of a water-soluble cationic polymer 失效一种制备水溶性阳离子聚合物的水性分散体的方法
公开(公告)号：EP0814099A3
公开(公告)日：1998-03-25
申请号：EP97109533.6
申请日：1997-06-12
发明人： Matsushima, Shouji, c/o Kurita Water Ind. Ltd. , Kubo, Katsutoshi, c/o Kurita Water Ind. Ltd. , Murano, Masayuki, c/o Kurita Water Ind. Ltd. , Shimada, Satoko, c/o Kurita Water Ind. Ltd.
IPC分类号： C08F8/12
CPC分类号： C08F8/12 , C08F226/02 , C08F220/44 , C08F8/32 , C08F126/02
摘要： A process for producing an aqueous dispersion of a water-soluble cationic polymer which process comprises modifying a polymer obtained by homopolymerization of an N-vinylcarboxylic acid amide or copolymerization of an N-vinylcarboxylic acid amide and a vinyl monomer copolymerizable with the N-vinyl carboxylic acid amide with an acid in an aqueous medium in the presence of a nitrate ion. The process can produce an aqueous dispersion of a water-soluble cationic polymer having a high molecular weight from the above water-insoluble polymer easily in a single step without causing adverse effects on the handling property while the fluidity is maintained.
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