Patent ID: 6444006
Filing Date: 2002-09-03
Classification: B01D,C04B,F01N,Y02T,Y10S

Abstract:
A high temperature composite ceramic filter media, comprising a first sheet, and a second sheet, said second sheet having a plurality of parallel pleats with the tips of the pleats on one side of the second sheet being in contiguous relation with the first sheet, each of said sheets comprising a plurality of haphazardly arranged ceramic fibers, an inorganic binder bonding the tips of the second sheet to the first sheet, and a layer of silicon carbide coating the ceramic fibers and the inorganic binder and providing a rigid high temperature construction, wherein said ceramic fibers have a random length in the range of 0.01 to 10 mm and an average diameter in the range of 2 to 7 microns, said filter media having a porosity greater than 80%.