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:
Feb. 09, 2010
Filed:
Nov. 21, 2006
Klaus Hintzer, Kastl, DE;
Michael Jürgens, Neuoetting, DE;
Harald Kaspar, Burgkirchen, DE;
Herbert Königsmann, Burgkirchen, DE;
Kai Helmut Lochhaas, Neuoetting, DE;
Andreas R. Maurer, Langenneufnach, DE;
Tilman C. Zipplies, Burghausen, DE;
Richard M. Flynn, Mahtomedi, MN (US);
Klaus Hintzer, Kastl, DE;
Michael Jürgens, Neuoetting, DE;
Harald Kaspar, Burgkirchen, DE;
Herbert Königsmann, Burgkirchen, DE;
Kai Helmut Lochhaas, Neuoetting, DE;
Andreas R. Maurer, Langenneufnach, DE;
Tilman C. Zipplies, Burghausen, DE;
Richard M. Flynn, Mahtomedi, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
The present invention provides a fluorinated surfactant having the general formula:[R—(O)—CQH—CF—O]—R—G  (I)wherein Rrepresents a partially or fully fluorinated aliphatic group optionally interrupted with one or more oxygen atoms, Q is CFor F, R is an aliphatic or aromatic hydrocarbon group, G represents a carboxylic or sulphonic acid or salt thereof, t is 0 or 1 and n is 1, 2 or 3. The surfactant is particularly useful in polymerizing fluorinated monomers in an aqueous emulsion polymerization.