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:
Nov. 03, 2015
Filed:
May. 02, 2013
Applicant:
E I Du Pont DE Nemours and Company, Wilmington, DE (US);
Inventors:
Paul Douglas Brothers, Chadds Ford, PA (US);
Gregory Allen Chapman, Washington, WV (US);
Subhash Vishnu Gangal, Hockessin, DE (US);
Adam Paul Smith, Vienna, WV (US);
Assignee:
THE CHEMOURS COMPANY FC, LLC, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 114/26 (2006.01); C08F 114/18 (2006.01); C08F 14/26 (2006.01); B01J 21/06 (2006.01); B01J 35/00 (2006.01); C08F 214/26 (2006.01); B01J 23/06 (2006.01); C08K 3/30 (2006.01); C08F 6/00 (2006.01);
U.S. Cl.
CPC ...
C08F 14/26 (2013.01); B01J 21/063 (2013.01); B01J 23/06 (2013.01); B01J 35/004 (2013.01); B01J 35/0013 (2013.01); C08F 114/26 (2013.01); C08F 214/262 (2013.01); C08F 6/006 (2013.01); C08F 6/008 (2013.01); C08F 2800/20 (2013.01); C08K 2003/3072 (2013.01);
Abstract
Process for reducing thermally induced discoloration of fluoropolymer resin produced by polymerizing fluoromonomer in an aqueous dispersion medium to form aqueous fluoropolymer dispersion and isolating fluoropolymer from said aqueous medium by separating wet fluoropolymer resin from the aqueous medium and drying to produce fluoropolymer resin. The process comprises exposing the wet fluoropolymer resin to an oxygen source during drying.