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:
Jun. 18, 2013
Filed:
Apr. 08, 2009
Applicants:
Michael C. Dadalas, Eggenfelden, DE;
Klaus Hintzer, Kastl, DE;
Ludwig Mayer, Burgkirchen, DE;
Tilman C. Zipplies, Burghausen, DE;
James Arthur Mcdonell, Woodbury, MN (US);
Inventors:
Michael C. Dadalas, Eggenfelden, DE;
Klaus Hintzer, Kastl, DE;
Ludwig Mayer, Burgkirchen, DE;
Tilman C. Zipplies, Burghausen, DE;
James Arthur McDonell, Woodbury, MN (US);
Assignee:
3M Innovative Properties Company, Saint Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/16 (2006.01); C08F 14/18 (2006.01); C08G 18/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process of reducing the amount of fluorinated emulsifiers in fluoropolymer dispersions by contacting the fluoropolymer dispersion with an anion exchange resin in the presence of a pH-dependent surfactant, and fluoropolymer dispersion containing the pH-dependent surfactant and uses thereof.