It is intended to provide a proton conducting membrane which is excellent in heat resistance, dimensional stability, fuel barrier properties, flexibility, etc. and exhibits an excellent protonic conductivity even at high temperatures, a method of producing...

A proton conducting membrane having a high ionic conductivity and an excellent high temperature dimensional stability which can perform stably even at high temperatures, a method for producing the same and a solid polymer-based fuel cell comprising same ar...

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 conductivit...

It is an object of the present invention to provide a modified polyvinyl acetal resin, which is superior in flexibility, an adhesive property to a resin substrate under high humidities, heat resistance, a thermal decomposition property, humidity resistance...

A membrane-electrode assembly that has high heat resistance and chemical resistance and moreover can function stably even at high temperature, the membrane-electrode assembly being made by joining gas diffusion electrodes to both faces of a proton-conducti...