发明授权
- 专利标题: Process for manufacturing clean fluoropolymers
- 专利标题(中): 制造清洁含氟聚合物的方法
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申请号: US12682702申请日: 2008-10-10
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公开(公告)号: US08541499B2公开(公告)日: 2013-09-24
- 发明人: Klaus Hintzer , Kai H. Lochhaas , Michael Jürgens , Harald Kaspar , Tilman C. Zipplies , André Streiter
- 申请人: Klaus Hintzer , Kai H. Lochhaas , Michael Jürgens , Harald Kaspar , Tilman C. Zipplies , André Streiter
- 申请人地址: US MN Saint 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 Saint Paul
- 代理商 C. Michael Geise
- 国际申请: PCT/US2008/079529 WO 20081010
- 国际公布: WO2009/049168 WO 20090416
- 主分类号: C08L27/18
- IPC分类号: C08L27/18
摘要:
There is provided a fluoroelastomer characterized by containing one type or more types of fluorinated emulsifiers represented by the formula: F—(CF2)t-[O(CF2)n]m-O—(CHF)o-(CF2)p-X where m=0 to 3; n=1 to 5; o=0 to 1; p=1 to 3; t=1 to 10; and where when t=2 than o≠0; and further where X is selected from a group consisting of a carboxyl acid group and a salt of a carboxylic acid group. A method for preparing fluoroelastomers by using such fluorinated emulsifiers in emulsion polymerization of fluoromonomers and articles containing such fluoroelastomers are also provided. A fluorinated elastomer dispersion including an aqueous mixture of a crosslinkable fluorinated elastomer and such fluorinated emulsifiers are also provided. The fluoroelastomers created with such fluorinated emulsifiers are essentially free of cations other than NH4+ and H+ and have a low glass transition temperature.
公开/授权文献
- US20100305262A1 PROCESS FOR MANUFACTURING CLEAN FLUOROPOLYMERS 公开/授权日:2010-12-02
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