发明授权
US5051487A Hydrophobic cationic terpolymers from acrylamide,
dimethylaminoethylacrylate methyl chloride or sulfate and vinyl acetate
失效
来自丙烯酰胺，丙烯酸二甲基氨基乙酯甲基氯化物或硫酸盐和乙酸乙烯酯的疏水性阳离子三元共聚物
- 专利标题： Hydrophobic cationic terpolymers from acrylamide, dimethylaminoethylacrylate methyl chloride or sulfate and vinyl acetate
- 专利标题（中）： 来自丙烯酰胺，丙烯酸二甲基氨基乙酯甲基氯化物或硫酸盐和乙酸乙烯酯的疏水性阳离子三元共聚物
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申请号： US325841申请日： 1989-03-20
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公开(公告)号： US5051487A公开(公告)日： 1991-09-24
- 发明人: Bhupati R. Bhattacharyya , Michael R. St. John
- 申请人： Bhupati R. Bhattacharyya , Michael R. St. John
- 申请人地址： IL Naperville
- 专利权人： Nalco Chemical Company
- 当前专利权人： Nalco Chemical Company
- 当前专利权人地址： IL Naperville
- 主分类号： C02F1/54
- IPC分类号： C02F1/54 ; C08F220/34 ; C08F220/56
摘要：
Hydrophobic cationic terpolymers resulting from the polymerization of a mixture of monomers of (a) acrylamide and/or methacrylamide, (b) dimethylaminoethylacrylate methyl chloride and/or dimethylaminoethylacrylate methyl sulfate, and (c) vinyl acetate; water-in-oil and oil-in-water emulsions containing said terpolymers; and dewatering of wastes and sludges utilizing said oil-in-water emulsions in which the terpolymers are present essentially in the aqueous phase.
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