Proton-conducting polymer membrane comprising sulfonic...

Details Proton-conducting polymer membrane comprising sulfonic... Proton-conducting polymer membrane comprising sulfonic...

2003-10-02

2010-06-29

Cantelmo, Gregg (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C521S027000, C521S030000

Reexamination Certificate

active

07745030

ABSTRACT:
A proton-conducting polymer membrane comprising polyazoles containing sulfonic acid groups is obtainable by a process comprising:A) mixing one or more aromatic or heteroaromatic tetraamino compounds with one or more aromatic or heteroaromatic carboxylic acids or derivatives thereof which contain at least two acid groups per carboxylic acid monomer, with at least part of the tetraamino compounds or the carboxylic acids comprising at least one sulfonic acid group, or mixing of one or more aromatic or heteroaromatic diaminocarboxylic acids, of which at least part comprises sulfonic acid groups, in polyphosphoric acid to form a solution or dispersion;B) optionally heating the solution or dispersion obtained by step A) under inert gas to temperatures of up to 325° C. to form polyazole polymers;C) applying a layer using the mixture from step A) or B) to a support, thus forming a membrane, andD) partially hydrolyzing the polyphosphoric acid moieties of the membrane from step C) until it is self-supporting.

REFERENCES:
patent: 3224908 (1965-12-01), Duch et al.
patent: 3293088 (1966-12-01), Herbst et al.
patent: 3313783 (1967-04-01), Iwakura et al.
patent: 3737045 (1973-06-01), Hasimoto et al.
patent: 3783137 (1974-01-01), Gerber
patent: 3808305 (1974-04-01), Gregor
patent: 4012303 (1977-03-01), D'Agostino et al.
patent: 4075093 (1978-02-01), Walch et al.
patent: 4187333 (1980-02-01), Rembaum et al.
patent: 4537668 (1985-08-01), Gaussens et al.
patent: 4622276 (1986-11-01), Walsh
patent: 4634530 (1987-01-01), Kuder et al.
patent: 5098985 (1992-03-01), Harris et al.
patent: 5211984 (1993-05-01), Wilson
patent: 5218076 (1993-06-01), Madison et al.
patent: 5312895 (1994-05-01), Dang et al.
patent: 5492996 (1996-02-01), Dang et al.
patent: 5599639 (1997-02-01), Sansone et al.
patent: 5633337 (1997-05-01), Tan et al.
patent: 5643968 (1997-07-01), Andreola et al.
patent: 5656386 (1997-08-01), Scherer et al.
patent: 5674969 (1997-10-01), Sikkema et al.
patent: 6030718 (2000-02-01), Fuglevand et al.
patent: 6087032 (2000-07-01), Yoshitake et al.
patent: 6096369 (2000-08-01), Anders et al.
patent: 6110616 (2000-08-01), Sheikh-Ali et al.
patent: 6124060 (2000-09-01), Akita et al.
patent: 6197147 (2001-03-01), Bönsel et al.
patent: 6248469 (2001-06-01), Formato et al.
patent: 6368587 (2002-04-01), Anders et al.
patent: 6767585 (2004-07-01), Kerres et al.
patent: 2001/0003130 (2001-06-01), Matsuoka et al.
patent: 2001/0038937 (2001-11-01), Suzuki et al.
patent: 2002/0045085 (2002-04-01), Formato et al.
patent: 2004/0062969 (2004-04-01), Sakaguchi et al.
patent: 2004/0101731 (2004-05-01), Jakoby et al.
patent: 2005/0256296 (2005-11-01), Kiefer et al.
patent: 1 301 578 (1969-08-01), None
patent: 196 53 484 A 1 (1998-06-01), None
patent: 101 48 131 (2003-05-01), None
patent: 0 265 921 (1988-05-01), None
patent: 0 265 921 (1988-05-01), None
patent: 0 476 560 (1991-09-01), None
patent: 0 846 733 (1998-06-01), None
patent: 0 893 165 (1999-01-01), None
patent: 1 110 992 (2001-06-01), None
patent: 1 202 365 (2002-05-01), None
patent: 1354907 (2003-10-01), None
patent: 53-97988 (1978-08-01), None
patent: 2002146014 (2002-05-01), None
patent: 2002146016 (2002-05-01), None
patent: 2003022709 (2003-01-01), None
patent: WO 94/25506 (1994-11-01), None
patent: WO 99/10165 (1999-03-01), None
patent: WO 00/49069 (2000-08-01), None
patent: WO 00/54351 (2000-09-01), None
patent: WO 01/45192 (2001-06-01), None
patent: WO 01/94450 (2001-12-01), None
patent: WO 02/36249 (2002-05-01), None
patent: WO 02/38650 (2002-05-01), None
patent: WO 02/071518 (2002-09-01), None
patent: WO 02/081547 (2002-10-01), None
patent: WO 02/088219 (2002-11-01), None
patent: WO 02/102881 (2002-12-01), None
patent: WO 03/007411 (2003-01-01), None
patent: WO 03/022412 (2003-03-01), None
patent: WO 03/022412 (2003-03-01), None
patent: WO 03/022412 (2003-03-01), None
patent: WO2004024797 (2004-03-01), None
Innophos, “Polyphosphoric Acid Assay” http://www.innophos.com/brochures/Plphshrccdss/page1.asp.
Machine Translation of JP 2002-146016 A, relied upon within the action.
Osaheni, J.A. and Jenekhe, S.A., “Synthesis of Processing of Heterocyclic Polymers as Electronic, Optoelectronic, and Nonlinear Optical Materials. 4. New Conjugated Rigid-Rod Poly(benzobis(imidazole))s,”Macomolecules28:1172-1179 (1995).
Y. Sakaguchi, et al., “Preparation and Properties of Sulfonated or Phosphonated Polybenzimidazoles and Polybenzoxazoles,”Am. Chem. Soc., Polymeric Materials Science and Engineering, 84: 899-900 (2001).
Spry, R. J., et al. Anisotropic Ionic Conductivity of Lithium-Doped Sulfonated PBI,J. Of. Polymer Sci.: Part B: Polymer Physics, 35: 2925-2933 (1997).

Affiliated with

Also associated with

Rating

Proton-conducting polymer membrane comprising sulfonic... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Proton-conducting polymer membrane comprising sulfonic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Proton-conducting polymer membrane comprising sulfonic... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4234878