Composite proton exchange membrane and method of...

Chemistry: electrical and wave energy – Apparatus – Electrolytic

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C204S253000, C204S257000, C204S296000, C429S006000, C429S006000, C429S006000, C429S006000, C429S006000

Reexamination Certificate

active

11543692

ABSTRACT:
A composite proton exchange membrane and method of manufacturing the same. The composite proton exchange membrane comprises a proton exchange membrane which has been modified by replacing membrane protons in desired areas of the membrane with a cationic polymer. The cationic polymer is preferably formed by introducing a quaternary salt monomer into the membrane and then effecting the polymerization of the monomer. The modified areas of the proton exchange membrane exhibit increased strength, reduced water and gas permeability, reduced proton conductivity and reduced acidity. Accordingly, by modifying the periphery of the membrane, one can obtain an integral sealing edge for the membrane, and by modifying certain interior regions of the membrane, one can divide the membrane into a plurality of sealed segments.

REFERENCES:
patent: 3282875 (1966-11-01), Connolly et al.
patent: 4178218 (1979-12-01), Seko
patent: 4470889 (1984-09-01), Ezzell et al.
patent: 4478695 (1984-10-01), Ezzell et al.
patent: 4832805 (1989-05-01), LaConti et al.
patent: 5045171 (1991-09-01), MacDonald
patent: 5264093 (1993-11-01), Banerjee
patent: 5863672 (1999-01-01), Ledjeff et al.
patent: 6011074 (2000-01-01), Sorenson et al.
patent: 6025457 (2000-02-01), Ohno et al.
patent: 6179986 (2001-01-01), Swette et al.
patent: 6492431 (2002-12-01), Cisar
patent: 6495209 (2002-12-01), Cisar
patent: 2004/0116546 (2004-06-01), Kosek et al.
Chapters 1, 5 and 6 (pp. 3-38, 143-156 and 157-180, respectively) of Interpenetrating Polymer Networks, edited by D. Klempner, L.H. Sperling and L.A. Utracki, Advances in Chemistry Series No. 239, American Chemical Society, Washington, DC (1994), no month available.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Composite proton exchange membrane and method of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Composite proton exchange membrane and method of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite proton exchange membrane and method of... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3835537

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.