FILTER WITH IMPROVED HARDNESS AND FILTRATION EFFICIENCY
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United States of America Patent
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Issued Date -
May 21, 2020
app pub date -
Jan 7, 2020
filing date -
Feb 24, 2014
priority date (Note) -
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Abstract
There is provided a smoking article comprising an aerosol generating substrate and a mouthpiece attached to the aerosol generating substrate. The mouthpiece includes a segment comprising a filtration material comprising polylactic acid, and an additive for reducing phenols. The mouthpiece further comprises one or more wrappers circumscribing the segment, the one or more wrappers have a combined basis weight of at least about 50 grams per square metre (gm-2).
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