Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Reexamination Certificate
2007-05-08
2007-05-08
Moore, Margaret G. (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
C528S035000, C442S116000, C429S047000
Reexamination Certificate
active
10450845
ABSTRACT:
The present invention provides relates to a crosslinkable, proton-conducting membrane having a crosslinked structure, excellent in heat resistance, durability, dimensional stability and fuel barrier characteristics, and showing excellent proton conductivity at high temperature, characterized by comprising (a) an organic/inorganic hybrid structure (A) covalently bonded to 2 or more silicon-oxygen crosslinks and, at the same time, having a carbon atom, and (b) an acid containing structure (B) having an acid group, covalently bonded to a silicon-oxygen crosslink and having an acidic group; and provides a fuel cell using the same membrane. The present invention also provides a method for producing the proton-conducting membrane, comprising steps of preparing a mixture containing an organic/inorganic hybrid, crosslinkable compound (C) and compound (D), the former having 2 or more crosslinkable silyl groups and carbon atoms each being bonded to the silyl group via the covalent bond and the latter having a crosslinkable silyl group and acid group, as the first step; forming the above mixture into a film as the second step; and hydrolyzing/condensing or only condensing the hydrolyzable silyl group contained in the mixture formed into the film to form a crosslinked structure as the third step.
REFERENCES:
patent: 5354831 (1994-10-01), Panster et al.
patent: 5427706 (1995-06-01), Kobayashi et al.
patent: 5532399 (1996-07-01), Hager et al.
patent: 5679482 (1997-10-01), Ehrenberg et al.
patent: 6841601 (2005-01-01), Serpico et al.
patent: 6949616 (2005-09-01), Jacob et al.
patent: 2006/0263660 (2006-11-01), Takaoka et al.
patent: 581296 (1994-02-01), None
patent: 2001-35509 (2001-02-01), None
patent: 2002-309016 (2002-10-01), None
patent: WO99/62620 (1999-12-01), None
Grant and Hackh's Chemical Dictionary, “membrane”, 1987.
Webster's Dictionary “membrane”, 2006.
Nakamura Masanori
Nomura Shigeki
Sugimoto Toshiya
Yamauchi Kenji
Armstrong Kratz Quintos Hanson & Brooks, LLP
Moore Margaret G.
Sekisui Chemical Co. Ltd.
LandOfFree
Proton conducting membrane, process for its production, and... 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 membrane, process for its production, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Proton conducting membrane, process for its production, and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3726931