发明申请
US20100093893A1 Removing Fluorosurfactant from Aqueous Fluoropolymer Dispersions Using Anion Exchange Polymer With Functional Groups Resistant To Degradation to Trialkylamines
有权
使用具有抗降解至三烷基胺的官能团的阴离子交换聚合物从含氟聚合物分散体中除去含氟表面活性剂
- 专利标题： Removing Fluorosurfactant from Aqueous Fluoropolymer Dispersions Using Anion Exchange Polymer With Functional Groups Resistant To Degradation to Trialkylamines
- 专利标题（中）： 使用具有抗降解至三烷基胺的官能团的阴离子交换聚合物从含氟聚合物分散体中除去含氟表面活性剂
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申请号： US12641423申请日： 2009-12-18
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公开(公告)号： US20100093893A1公开(公告)日： 2010-04-15
- 发明人: James R. Combes , David William Johnson , Stephen Thomas Breske
- 申请人： James R. Combes , David William Johnson , Stephen Thomas Breske
- 申请人地址： US DE Wilmington
- 专利权人： E. I. DU PONT DE NEMOURS AND COMPANY
- 当前专利权人： E. I. DU PONT DE NEMOURS AND COMPANY
- 当前专利权人地址： US DE Wilmington
- 主分类号： C08F6/16
- IPC分类号： C08F6/16
摘要：
A process for reducing fluorosurfactant content of a stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion comprising contacting the stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion with an anion exchange resin comprising a polymer and quaternary ammonium functional groups to reduce fluorosurfactant content, the functional groups being resistant to degradation which releases trialkylamines. The anion exchange resin is separated from the dispersion after the fluorosurfactant content has been reduced.