发明授权
- 专利标题: Emulsifier free aqueous emulsion polymerization process for making fluoropolymers
- 专利标题(中): 无乳化剂水性乳液聚合方法制备含氟聚合物
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申请号: US10474523申请日: 2002-04-30
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公开(公告)号: US07074862B2公开(公告)日: 2006-07-11
- 发明人: Harald Kaspar , Klaus Hintzer , Greta Dewitte , Werner Schwertfeger
- 申请人: Harald Kaspar , Klaus Hintzer , Greta Dewitte , Werner Schwertfeger
- 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 Brian E. Szymanski; C. Michael Geise
- 国际申请: PCT/US02/13691 WO 20020430
- 国际公布: WO02/088207 WO 20021107
- 主分类号: C08F214/16
- IPC分类号: C08F214/16
摘要:
Emulsifier free fluoropolymer manufacturing method in which (a) a chain transfer agent, or a mixture of chain transfer agents are used wherein the chain transfer agents do not yield more than 0.4 weight % relative to the monomer feed of water soluble fluorinated compounds, or (b) a chain transfer agent or a mixture of chain transfer agents selected from alkanes, dialkyl ethers, hydrofluoroethers and/or hydrofluorocarbons.
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