Layered gas filter media
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United States of America Patent
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Feb 15, 2000
Grant Date -
N/A
app pub date -
Apr 22, 1998
filing date -
Nov 15, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A gas filter media with a parallel layer structure, which comprise individual layers of adhesive and adsorbent particles, wherein the thermoplastic adhesive is solvent-free and is preferably based on polypropylene or polyethylene. Using the manufacturing process according to the present invention, it is possible to intentionally prepare gas filter media with adjustable packing density and pressure drop. The gas filter media according to the present invention can be used in respirator filters, room air filters, in ventilation filters for vehicles, or in apparatus filters.
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