Filtration materials using fiber blends that contain strategically shaped fibers and/or charge control agents
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 11, 2017
Issued Date -
N/A
app pub date -
Dec 24, 2014
filing date -
Oct 25, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A filtration material comprising a blend of polypropylene and acrylic fibers of round, flat, dog bone, oval or kidney bean shape in any size from 0.08 to 3.3 Dtex. A preferred blend contains about 50 weight percent polypropylene fibers and about 50 weight percent acrylic fibers. The fibers can be blended ranging from 90:10 to 10:90 polypropylene to acrylic. The shape contains 25 weight percent round, flat, oval, dog bone and kidney bean shapes. The fiber blend contains 25 weight percent of at least one size between 0.08 and 3.3 Dtex. Electret fibers incorporated within these blends have 0.02 to 33 weight percent of a charge control agent. These fibers can be used in producing electret material by corona or triboelectric charging methods.
First Claim
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International Classification(s)
- B03C:MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATE....
- D01D:MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE....
- D06M:TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D0....
- D01F:CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL....
- F24F:AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION;....
- D04H:MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAME....
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