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:
Jan. 07, 2014
Filed:
Aug. 15, 2008
Klaus Hintzer, Kastl, DE;
Michael Juergens, Neuoetting, DE;
Harald Kaspar, Burgkirchen, DE;
Kai Helmut Lochhaas, Neuoetting, DE;
André Streiter, Mühldorf am Inn, DE;
Tilman C. Zipplies, Burghausen, DE;
Werner Schwertfeger, Langgons, DE;
Klaus Hintzer, Kastl, DE;
Michael Juergens, Neuoetting, DE;
Harald Kaspar, Burgkirchen, DE;
Kai Helmut Lochhaas, Neuoetting, DE;
André Streiter, Mühldorf am Inn, DE;
Tilman C. Zipplies, Burghausen, DE;
Werner Schwertfeger, Langgons, DE;
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Method of making fluoropolymers by emulsion polymerization of one or more fluorinated monomers in an aqueous phase in the presence of a fluorinated emulsifier, said method comprises adding a doping agent in a weight ratio with respect to the emulsifier of from about 1:2 to about 1:20, said doping agent has a melting point of equal or less than 30° C. and a boiling point of at least about 100° C. and is selected from the group consisting of fluorinated cyclic hydrocarbons, fluorinated polyoxyalkenes, fluorinated alkenes and fluorinated polyoxyalkenes.