Patent ID: 6171708
Filing Date: 2001-01-09
Classification: B29C,B29K,C08J,D06M,H01M,Y02E,Y10S,Y10T

Abstract:
A porous article wherein a sulfur containing atomic group is introduced onto at least a part of outer-inner surfaces of said article,a ratio (S/C) of the number of sulfur atoms (S) to the number of carbon atoms (C) on the surface onto which said sulfur containing atomic group is introduced is 7.times.10.sup.-4 or more, a ratio (O/C) of the number of oxygen atoms (O) to the number of carbon atoms (C) on the surface onto which said sulfur containing atomic group is introduced is 0.2 or more, and said ratio (S/C) and said ratio (O/C) are determined by means of an X-ray photoelectron spectrophotometer.