Mitsubishi Rayon was the first company in the world to commercialize a multi-layered composite hollow-fiber membrane, a membrane with a completely new structure, and one which has superior permeability to gases. This membrane features an ultra-thin non-po
Polymers, plastics and composites are widely applied because of their chemical resistance, low weight and mechanical strength. However, polymers are not completely tight to chemicals, and therefore chemicals "jump" or diffuse through. During the service
