ELECTRET MELT-BLOWN WEBS WITH IMPROVED FILTRATION PROPERTIES
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United States of America Patent
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Issued Date -
Sep 12, 2024
app pub date -
Jan 21, 2022
filing date -
Jan 21, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
Electret melt-blown webs made from a polypropylene composition (PC) comprising a propylene homopolymer (HPP) having: a. a melt flow rate MFR2 in the range from 400 to 5000 g/10 min, b. a melting temperature Tm, in the range from 140 to 160° C., and c. a content of 2, 1 erythro regiodefects in the range from 0.01 to 1.5 mol %.
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International Classification(s)
- C08F:MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONL....
- D06M:TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D0....
- D01F:CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL....
- D04H:MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAME....
- B01D:SEPARATION
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
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