Complex shaped fiber for particle and molecular filtration
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Oct 28, 2008
Grant Date -
Jan 4, 2007
app pub date -
Aug 28, 2003
filing date -
Apr 12, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ultra-efficient multilobal cross-sectioned fiber filter for chemical contaminant filtering applications is described. An absorptive chemically reactive reagent, preferably an acid or base and in liquid or an adsorptive chemically reactive reagent (an acid or base) in solid form, is disposed within longitudinal slots in each length of fiber. The reagent may be used alone or in conjunction with solid adsorptive particles which may also be utilized with the reagents in the longitudinal slots within the fibers. Reagents within the fibers remain exposed to a base-contaminated airstream passing through the filter. Base contaminants in the airstream, chemicals such as ammonium and amines (as well as particles), react with the acid reagent within the longitudinal slots of the fibers. As the contaminant and reagent react, the ammonium or amine becomes irreversibly absorbed (or adsorbed if reagent is a solid acid) to the liquid acid reagent and multilobal fiber.
First Claim
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Cited Art Landscape
Patent Citation Ranking
- 7 Citation Count
- B01D Class
- 4.47 % this patent is cited more than
- 17 Age
