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. 22, 2013
Filed:
May. 17, 2012
Vincenzo Arcella, Nerviano, IT;
Luca Cirillo, Bollate, IT;
Alessandro Ghielmi, Milan, IT;
Luca Merlo, Monotorfano, IT;
Stefano Millefanti, Carbonate, IT;
Vincenzo Arcella, Nerviano, IT;
Luca Cirillo, Bollate, IT;
Alessandro Ghielmi, Milan, IT;
Luca Merlo, Monotorfano, IT;
Stefano Millefanti, Carbonate, IT;
Solvay Solexis S.p.A., Bollate, IT;
Abstract
The invention pertains to a semi-crystalline fluoropolymer having ion exchange groups comprising recurring units derived from at least one ethylenicalty unsaturated monomer comprising at least one fluorine atom (fluorinated monomer); and a substantial amount of recurring units derived from at least one ethylenically unsaturated monomer comprising at least one ion exchange group (functional monomer), wherein the amount of unstable end groups of —COF type is of less than 0.05 mmol/kg, and the use of the stabilized fluoropolymer in fuel cells devices, a membrane and a membrane-electrode assembly.