Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2007-12-11
2007-12-11
Seidleck, James J. (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S343000, C525S348000, C525S189000, C525S333500, C525S344000, C521S028000, C521S033000
Reexamination Certificate
active
10828521
ABSTRACT:
A block copolymer composition AB is provided that has pendent groups —RZ extending from the A copolymer on at least 70 mol % of the A monomers, where R and Z are each an ionic species. The composition is included in a semipermeable membrane for use in a direct methanol fuel cell. Also described are articles of protective apparel comprising the composition which advantageously has barrier properties as well as superior water vapor transport properties.
REFERENCES:
patent: 3553286 (1971-01-01), Murata et al.
patent: 4086171 (1978-04-01), Wood et al.
patent: 5039752 (1991-08-01), Storey et al.
patent: 6579948 (2003-06-01), Tan et al.
Crawford Dawn M.
Elabd Yossef A.
Napadensky Eugene
Sloan James M.
Adams William V.
Asinovsky Olga
Seidleck James J.
Stolarun Edward L.
United States of America as represented by the Secretary of the
LandOfFree
Highly sulfonated block copolymer hydrogels and uses thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Highly sulfonated block copolymer hydrogels and uses thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Highly sulfonated block copolymer hydrogels and uses thereof will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3839915