Patent ID: 6677073
Filing Date: 2004-01-13
Classification: D04H,D21H,H01M,H05K,Y02E,Y10T

Abstract:
A gas diffusion substrate comprising:a non-woven web comprising a plurality of first fibers, at least one continuous strand, and a sub-surface layer, wherein said first fibers are oriented in either the x- and y-direction or the x-, y- and z-direction in the sub-surface layer and are bonded with a polymeric substance, wherein each continuous strand of said at least one continuous strand is embedded within said sub-surface layer among the first fibers and comprises a plurality of second fibers wherein said second fibers are carbon fibers, wherein at least a portion of said at least one continuous strand and at least one of said first fibers are positioned at the same sub-surface level; and a filler material, wherein said filler material comprises either a base filler material or a base filler material and at least one modifier material.