Composite ion exchange membrane and electrolyte membrane electrode assembly

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7537852
APP PUB NO 20050095486A1
SERIAL NO

10503926

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Abstract

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The present invention provides a composite ion exchange membrane which has high mechanical strength and is suitable for use as a solid polymer electrolyte membrane excellent in ionic conductivity and a method for its production. The invention is achieved by a composite ion exchange membrane including a composite layer comprising a support membrane with continuous voids formed of polybenzazole polymer, the support membrane being impregnated with ion exchange resin, and surface layers formed of ion exchange resin free of support membranes, the surface layers being formed on both surfaces of the composite layer so as to sandwich the composite layer therebetween.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TOYO BOSEKI KABUSHIKI KAISHARALEIGH, NC297

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hamamoto, Shiro Otsu, JP 10 117
Kitamura, Kota Otsu, JP 14 271
Nagahara, Shigenori Otsu, JP 7 103
Nakao, Junko Otsu, JP 3 62
Sakaguchi, Yoshimitsu Otsu, JP 15 185
Sasai, Kousuke Otsu, JP 4 60
Takase, Satoshi Otsu, JP 17 450

Cited Art Landscape

Patent Info (Count) # Cites Year
 
FOSTER-MILLER, INC. (1)
* 6248469 Composite solid polymer electrolyte membranes 138 1999
 
THE DOW CHEMICAL COMPANY (1)
5654109 Composite fuel cell membranes 35 1995
 
L-3 COMMUNICATIONS CORPORATION (1)
5998057 Gas diffusion electrode for polymer electrolyte membrane fuel cells 42 1998
 
COMMTECH INTERNATIONAL, A CORP. OF CA. (2)
4533692 Liquid crystalline polymer compositions, process, and products 76 1982
4703103 Liquid crystalline polymer compositions, process and products 56 1984
 
SRI INTERNATIONAL (1)
* 6176984 High temperature polybenzazole and polyether electrolytes 3 1999
 
INTELLIGENT ENERGY LIMITED (1)
* 6977009 Metal coated polymer electrolyte membrane having a reinforcement structure 7 2002
 
VICTREX MANUFACTURING LIMITED (1)
* 6902801 Composite ion exchange material 7 2001
 
The United States of America as represented by the Secretary of the Air Force (2)
4359567 Thermooxidatively stable articulated p-benzobisoxazole and p-benzobisthiazole polymers 33 1981
4578432 Method for making heterocyclic block copolymer 28 1985
 
SRI DEVELOPMENT COMPANY, INC. (2)
4533724 Liquid crystalline poly (2,6-benzothiazole) compositions, process, and products 59 1982
4533693 Liquid crystalline polymer compositions, process, and products 114 1983
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
TAIPEI MEDICAL UNIVERSITY (1)
* 2010/0003,519 Method of fabricating nano-fibers by electrospinning 1 2009
 
SAMSUNG ELECTRONICS CO., LTD. (1)
8175010 System and method for providing simultaneous multiple push-to-talk over cellular multimedia service 0 2006
 
TOYO BOSEKI KABUSHIKI KAISHA (2)
* 8304133 Method for producing a polymer electrolyte membrane 0 2007
* 2010/0055,536 METHOD FOR PRODUCING A POLYMER ELECTROLYTE MEMBRANE 0 2007
* Cited By Examiner

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