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:
Jul. 01, 2014
Filed:
Nov. 16, 2011
Applicants:
Ramin Amin-sanayei, Malvern, PA (US);
Mehdi Durali, Carlsbad, CA (US);
Patrick Kappler, Ecully, FR;
Greylan Burch, Runnemede, NJ (US);
Inventors:
Ramin Amin-Sanayei, Malvern, PA (US);
Mehdi Durali, Carlsbad, CA (US);
Patrick Kappler, Ecully, FR;
Greylan Burch, Runnemede, NJ (US);
Assignee:
Arkema Inc., King of Prussia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 18/20 (2006.01); C08F 14/18 (2006.01); C08F 214/22 (2006.01); C08F 14/22 (2006.01); C08L 27/16 (2006.01); C08K 5/06 (2006.01); C08L 71/02 (2006.01);
U.S. Cl.
CPC ...
C08F 14/18 (2013.01); C08F 214/22 (2013.01); C08F 14/22 (2013.01); C08L 27/16 (2013.01); C08L 71/02 (2013.01); C08K 5/06 (2013.01);
Abstract
A novel aqueous polymerization process for making fluoropolymer dispersions is disclosed in which non-ionic non-fluorinated emulsifier is used to produce fluoropolymer emulsions. The emulsifiers contain blocks of polyethylene glycol, polypropylene glycol and/or polytetramethylene glycol. The process and fluoropolymer produced contain no fluorinated surfactant. The fluoropolymers have excellent resistance to discoloration.