Invention Grant
US07659329B2 Removing fluorosurfactant from aqueous fluoropolymer dispersions using monodisperse ion exchange resin
失效
使用单分散离子交换树脂从含氟聚合物水分散体中除去含氟表面活性剂
- Patent Title: Removing fluorosurfactant from aqueous fluoropolymer dispersions using monodisperse ion exchange resin
- Patent Title (中): 使用单分散离子交换树脂从含氟聚合物水分散体中除去含氟表面活性剂
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Application No.: US11292459Application Date: 2005-12-02
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Publication No.: US07659329B2Publication Date: 2010-02-09
- Inventor: Steven H. Swearingen , William George O'Brien , Charles Joseph Noelke
- Applicant: Steven H. Swearingen , William George O'Brien , Charles Joseph Noelke
- Applicant Address: US DE Wilmington
- Assignee: E. I. du Pont de Nemours and Company
- Current Assignee: E. I. du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Main IPC: C08F6/16
- IPC: C08F6/16
Abstract:
A process for reducing fluorosurfactant content of a stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion comprising passing said stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion through a fixed bed of ion exchange resin beads comprising a polymer and functional groups to reduce fluorosurfactant content, the ion exchange resin beads being monodisperse.
Public/Granted literature
- US20060135654A1 Removing fluorosurfactant from aqueous fluoropolymer dispersions using monodisperse ion exchange resin Public/Granted day:2006-06-22
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