发明授权
- 专利标题： Aqueous emulsion polymerization of fluorinated monomers using a fluorinated surfactant
- 专利标题（中）： 使用氟化表面活性剂的氟化单体的水乳液聚合
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申请号： US11457502申请日： 2006-07-14
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公开(公告)号： US07776946B2公开(公告)日： 2010-08-17
- 发明人: Klaus Hintzer , Harald Kaspar , Andreas R. Maurer , Werner Schwertfeger , Tilman Zipplies
- 申请人： Klaus Hintzer , Harald Kaspar , Andreas R. Maurer , Werner Schwertfeger , Tilman Zipplies
- 申请人地址： US MN St. Paul
- 专利权人： 3M Innovative Properties Company
- 当前专利权人： 3M Innovative Properties Company
- 当前专利权人地址： US MN St. Paul
- 代理商 Julie A. Lapos-Kuchar; Brian E. Szymanski
- 优先权： GB0514398.7 20050715
- 主分类号： C08K5/09
- IPC分类号： C08K5/09
摘要：
The present invention provides an aqueous emulsion polymerization of fluorinated monomers including gaseous fluorinated monomers using a perfluoro ether surfactant as an emulsifier. The perfluoro ether surfactants correspond to formula (I) Rf—O—CF2CF2—X (I) wherein Rf represents a linear or branched perfluoroalkyl group having 1, 2, 3 or 4 carbon atoms and X represents a carboxylic acid group or salt thereof. In a further aspect, the invention also provides an aqueous fluoropolymer dispersion comprising the perfluoro ether surfactant and the use of such dispersion in the coating or impregnation of substrates.
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