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. 13, 2010
Filed:
Oct. 21, 2008
Applicants:
Michael Cregg Coughlin, Wilmington, DE (US);
Ming-hong Hung, Wilmington, DE (US);
Phan Linh Tang, West Chester, PA (US);
Inventors:
Michael Cregg Coughlin, Wilmington, DE (US);
Ming-Hong Hung, Wilmington, DE (US);
Phan Linh Tang, West Chester, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/01 (2006.01);
U.S. Cl.
CPC ...
Abstract
An emulsion polymerization process for the production of fluoropolymers is disclosed wherein a combination of at least two fluorosurfactants is employed as dispersants. At least one fluorosurfactant is a perfluoroalkyl or perfluoroalkoxy sulfinate. At least one other fluorosurfactant is a perfluoropolyether having at least one endgroup selected from the group consisting of carboxylic acid, a slat thereof, sulfonic acid and a salt thereof.