Method for manufacturing composite membranes

Details Method for manufacturing composite membranes Method for manufacturing composite membranes

2005-10-11

2005-10-11

Ryan, Patrick Joseph (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S309000, C429S006000, C429S047000, C521S027000, C525S474000

Reexamination Certificate

active

06953634

ABSTRACT:
A method for manufacturing composite membranes includes providing a branched polyalkoxy siloxane, providing an organic proton conductor, mixing the branched polyalkoxy siloxane with the organic proton conductor; and forming a membrane from the composite component mixture. Using the method according to the present invention, it is possible to increase the proton conductivity and the mechanical stability of membranes and to reduce the swelling by water and aqueous solutions. The obtained composite membranes may be used in PEM fuel cells.

REFERENCES:
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patent: 6194474 (2001-02-01), Kerres et al.
patent: 2002/0127474 (2002-09-01), Fleischer et al.
patent: 2003/0219640 (2003-11-01), Nam et al.
patent: 4422158 (1996-01-01), None
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patent: 19817376 (1999-10-01), None
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Hanselmann et al. “Macromolecules” vol. 31, No. 12, 1998 pp. 3790-3801.

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