Process to prepare stable trifluorostyrene containing...

Details Process to prepare stable trifluorostyrene containing... Process to prepare stable trifluorostyrene containing...

2006-03-24

2010-06-15

Mulcahy, Peter D. (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

C521S028000, C521S032000, C521S033000

Reexamination Certificate

active

07737190

ABSTRACT:
A fluorinated ion exchange polymer is prepared by grafting at least one grafting monomer derived from trifluorostyrene on to at least one base polymer in a organic solvent/water mixture. These ion exchange polymers are useful in preparing catalyst coated membranes and membrane electrode assemblies used in fuel cells.

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