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. 27, 2021
Filed:
Apr. 28, 2011
Applicants:
Oliver Frey, Gauting, DE;
Klaus Hintzer, Kastl, DE;
Wolfgang Neumann, Eichenring, DE;
André Streiter, Muehldorf am Inn, DE;
Inventors:
Oliver Frey, Gauting, DE;
Klaus Hintzer, Kastl, DE;
Wolfgang Neumann, Eichenring, DE;
André Streiter, Muehldorf am Inn, DE;
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L 27/18 (2006.01); C08F 214/26 (2006.01); D01F 6/12 (2006.01); C08F 2/24 (2006.01);
U.S. Cl.
CPC ...
C08F 214/262 (2013.01); C08F 2/24 (2013.01); D01F 6/12 (2013.01); Y10T 428/2982 (2015.01);
Abstract
Described herein is a process for making PTFE having a standard specific gravity of less than 2.160 g/cmcomprising: polymerizing a tetrafluoroethylene monomer in an aqueous medium comprising an emulsifier and an initiator in a reaction vessel and contacting the aqueous medium with a fluorinated polyether. Also described herein are the polymerizable compositions and articles thereof.