Proton-conductive membranes and layers and methods for their...

Details Proton-conductive membranes and layers and methods for their... Proton-conductive membranes and layers and methods for their...

2005-09-27

2005-09-27

Peng, Kuo-Liang (Department: 1712)

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

Synthetic resins

From silicon reactant having at least one...

C528S027000, C528S038000, C524S588000

Reexamination Certificate

active

06949616

ABSTRACT:
This invention relates to a silane-resin composition that can be obtained by at least partial hydrolytic condensation of at least the following components: (1) one or more sulfonic acid group-containing silane(s) with at least one group that can be cleaved under hydrolytic conditions, (2) one or more styryl-functionalized silane(s) and (3) one or more silane(s) that carry a nitrogen-containing heterocyclic compound, an amine group or a sulfonamide group with at least one group that can be cleaved under hydrolytic conditions, and mixing of the components before, during or after the hydrolytic condensation, as well as a process for the production of this composition. With the silane resin that is obtained, proton-conductive, organically cross-linked heteropolysiloxanes can be produced that are suitable for PEMFC in a layer or membrane form as proton-conductive systems. Their proton conductivity can be further increased by the addition of suitable liquids.

REFERENCES:
patent: 4716091 (1987-12-01), Yoshihara et al.
patent: 5283310 (1994-02-01), Armand et al.
patent: 5525436 (1996-06-01), Savinell et al.
patent: 5656386 (1997-08-01), Scherer et al.
patent: 5716727 (1998-02-01), Savinell et al.
patent: 5981097 (1999-11-01), Rajendran
patent: 5985942 (1999-11-01), Steck et al.
patent: 5994426 (1999-11-01), Nezu et al.
patent: 574791 (1993-06-01), None
patent: 02-042448 (1990-02-01), None
patent: WO 99/24497 (1999-05-01), None
F. N. Buchi et al., “Performance of Differently Corss-Linked, Partially Fluorinated Proton Exchange Membranes in Polymer Electrolyte Fuel Cells,” J. Electrochim. Soc. 142 (1995) 3044.
L. Depre et al., “Organic-Inorganic Hybrid Protonic Polymeric Electrolytes Grafted By Sulfonic Acid/Sulfonamide Moieties,” Mat. Res. Soc. Symp. Proc. 575(2000) 253.
L. Depre et al., “Proton Conduction Sulfon/Sulfonamide Functionalized Materials Based on Inorganic-Organic Matrices,” Electrochim. Acta 45 (2000), 1377-1383.
L. Depre et al., “Inorganic-Organic proton conductors based on alkylsulfone functionalities and their patterning by photoinduced methods,”Electrochimica Acta, vol. 43, Nos 10-11, pp. 1301-1306, 1998.
K. D. Kreuer et al., “Imidazole and Pyrazole-based Proton Conducting Polymers and Liquids,” Electrochim. Acta 43 (1998), 1281.
L. Popall et al., “Inorganic-Organic Copolymers as Solid State Ionic Conductors with Grafted Anions,”Electrochimica Acta, vol. 40, No. 13-14, pp. 2305-2308, 1995.
X. Ren et al., “Water and Methanol Transport in Membranes for Direct Methanol Fuel Cells,” Polym. Mater. Sci. Eng. 80(1999), 601.
X. Ren et al., “High Performance Direct Methanol Polymer Electrolyte Fuel Cells,” J. Electrochim. Soc. 143 (1996), L12-L15.
Schoolmann et al., “Properties and Application of a Proton Conducting Polymer: The BPEL, xH3PO4System,” Electrochim. Acta 37 (1992) 1619-21.
J. S. Wainright et al., “Acid-Doped Polybenzimidazoles: A New Polymer Electrolyte,” J. Electrochim. Soc. 142 (1995), L121-L123.

Affiliated with

Also associated with

Rating

Proton-conductive membranes and layers and methods for their... 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-conductive membranes and layers and methods for their..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Proton-conductive membranes and layers and methods for their... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3402189