A method for removing CO 2 is provided. The method comprises bringing a CO 2 -facilitated transport membrane into contact with a gas containing CO 2 and H 2 at 100°C or higher thereby removing the CO 2 from the gas. The CO 2 -facilitated transport membran...

The object of the present invention is to provide a porous membrane having a high strength and excellent water permeability and rejection properties. The porous membrane of the present invention has both a three-dimensional network structure and a spherica...

There are disclosed a polyelectrolyte membrane comprising at least one syndiotactic styrenic polymer or copolymer in its clathrate form, and having ion-exchange groups, methods for its productions and a fuel cell comprising said polyelectrolyte membrane. P...

A process for production of a composite porous film wherein a porous support, of which both sides have been coated with a solution (dope) of an organic polymer compound in a water-soluble organic solvent to form a coated film, is passed through an air gap ...

A polymetaphenylene isophthalamide-based polymer porous film having a satisfactory porous structure that exhibits excellent gas permeability and heat resistance. It is produced by a process which comprises casting a dope of the polymetaphenylene isophthala...