The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 2010
Filed:
Feb. 13, 2008
Process for removing fluorosurfactant from an aqueous fluoropolymer dispersion using sorbent pouches
Charles Joseph Noelke, Southern Pines, NC (US);
Clay Woodward Jones, Fort Collins, CO (US);
Daniel N. Levy, Tannay, CH;
Michael Gene Mcclusky, Washington, WV (US);
David William Johnson, Washington, WV (US);
Charles Joseph Noelke, Southern Pines, NC (US);
Clay Woodward Jones, Fort Collins, CO (US);
Daniel N. Levy, Tannay, CH;
Michael Gene McClusky, Washington, WV (US);
David William Johnson, Washington, WV (US);
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A process for reducing the fluorosurfactant content of an aqueous fluoropolymer dispersion by filling a container with fluoropolymer dispersion, inserting into the container a fabric pouch containing a fluorosurfactant sorbent so that the sorbent contacts the fluorosurfactant-containing aqueous fluoropolymer dispersion in the container and retains the fluorosurfactant to reduce fluorosurfactant content of said fluorosurfactant-containing aqueous fluoropolymer dispersion, and removing the fabric pouch from the container.