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AssigneeHitco Carbon Composites, Inc.
InventorsDoug Wilson, Raj Mathur
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A filter media system, which is capable of operating in the microfiltration regime, offers: low cost, durability, high temperature and chemical resistance, no particulation, mechanical strength, separation efficiency, and biocompatibility. The present invention provides a filter media system comprising a fibrous substrate of at least one of carbon and ceramic fibers, wherein an array of carbon or ceramic fiber whiskers have been grown onto the fibrous substrate, without prior densification of the fibrous substrate. A process for manufacturing a filter media system wherein a carbon fiber is treated with a solution of metal catalyst salt, heated in hydrogen at elevated temperatures to reduce the metal salt to metal, and whisker growth is initiated on the surfaces of the metal deposited carbon fibers by decomposition of low molecular weight hydrocarbon gas at elevated temperature is also provided.
A filter media system comprising a fibrous substrate of at least one of carbon or ceratic fibers wherein an array of carbon or ceramic fiber whiskers have been grown onto surfaces of the fibers comprising the fibrous substrate, wherein the filter media system has an interconnected porosity that is adapted to allow fluid to flow through the filter media system and a pore size distribution that is adapted to capture particles in the range of about 0.1 to about 100 microns.
A process for manufacturing a filter media system comprising carbon fibers, wherein an array of carbon fiber whiskers have been grown onto said carbon fibers, comprising:
A process for manufacturing a filter media system comprising ceramic fibers, wherein an array of ceramic fiber whiskers have been grown onto the surfaces of said ceramic fibers, comprising:
Dependencies are inferred from the claim text.