Title:
PROCESS FOR THE TREATMENT OF SULFONYL FLUORIDE POLYMERS
Document Type and Number:
WIPO Patent Application WO/2012/000851
Kind Code:
A1
Abstract:
A process for reducing the amount of soluble polymeric fractions in a sulfonyl fluoride polymer. The process comprises contacting the sulfonyl fluoride polymer with a fluorinated fluid followed by separation of the polymer from the fluid. The fluorinated fluid is selected from hydrofluoroethers and hydrofluoropolyethers. The invention further relates to sulfonyl fluoride polymers obtainable by the process and having a heat of fusion not exceeding 4 J/g and containing less than 15% by weight of polymeric fractions having an average content of monomeric units comprising a sulfonyl functional group exceeding 24 mole %. The sulfonyl fluoride polymers so obtained are particularly suitable for the preparation of ionomeric membranes for use in electrochemical devices.
Inventors:
MERLO, Luca (via Molera 31/D, Montorfano, I-22030, IT)
VENERONI, Alessandro (Via F. Petrarca 7, Novate Milanese, I-20026, IT)
PAGANO, Elvira (Via Savona 94, Milano, I-20144, IT)
OLDANI, Claudio (Piazza 106ma Brigata Garibaldi 1, Nerviano, I-20014, IT)
VENERONI, Alessandro (Via F. Petrarca 7, Novate Milanese, I-20026, IT)
PAGANO, Elvira (Via Savona 94, Milano, I-20144, IT)
OLDANI, Claudio (Piazza 106ma Brigata Garibaldi 1, Nerviano, I-20014, IT)
Application Number:
EP2011/060396
Publication Date:
January 05, 2012
Filing Date:
June 22, 2011
Export Citation:
Assignee:
SOLVAY SOLEXIS S.P.A. (Viale Lombardia 20, Bollate, I-20021, IT)
MERLO, Luca (via Molera 31/D, Montorfano, I-22030, IT)
VENERONI, Alessandro (Via F. Petrarca 7, Novate Milanese, I-20026, IT)
PAGANO, Elvira (Via Savona 94, Milano, I-20144, IT)
OLDANI, Claudio (Piazza 106ma Brigata Garibaldi 1, Nerviano, I-20014, IT)
MERLO, Luca (via Molera 31/D, Montorfano, I-22030, IT)
VENERONI, Alessandro (Via F. Petrarca 7, Novate Milanese, I-20026, IT)
PAGANO, Elvira (Via Savona 94, Milano, I-20144, IT)
OLDANI, Claudio (Piazza 106ma Brigata Garibaldi 1, Nerviano, I-20014, IT)
International Classes:
C08F214/18; B01D71/32; C08J5/18
Attorney, Agent or Firm:
BENVENUTI, Federica et al. (Solvay SA, Intellectual Property DepartmentRue de Ransbee, 310 Bruxelles, B-1120, BE)
Claims: