SILVER-COATED FABRIC FOR FILTER MEMBRANE INTEGRATION
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United States of America Patent
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Issued Date -
Dec 4, 2014
app pub date -
May 31, 2013
filing date -
May 31, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention provides a method of preparing a filter medium by thermally bonding silver-coated spunbonded nonwoven fabrics to a dirt-retaining membrane, a chemical-retaining membrane, a pathogen-retaining membrane, or a combination thereof. The invention also relates to the use of one or more silver-coated spunbonded nonwoven fabric layers as a component of a microorganism-killing membrane in filter media for a fluid filtration system. The filter media of the invention offers efficient disinfection effects, maintaining a low pressure drop and a high flow rate when in use. Further, the filter media is adhesive free and contains at least one thermal binding layer made of spunbonded nonwoven polymeric fabrics. The invention also features a water-purification cartridge and the use thereof in a potable water system.
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