Smoking articles
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United States of America Patent
Stats
-
Apr 21, 1992
Grant Date -
N/A
app pub date -
Aug 13, 1990
filing date -
Aug 15, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Smoking articles in the form of a smoking material rod enclosed with a filter means by a paper wrapper are described wherein the density of the smoking material is in a range of from about 100 mg cm.sup.-3 to about 260 mg cm.sup.-3. The smoking material contains at least 20% by weight of expanded tobacco while the filter means has a filtration efficiency less than about 45% for removal of particulate matter. Ventilation means is operable to provide a ventilation level of at least 30%. Smoking articles in accordance with the disclosure exhibit acceptable mainstream smoke over the whole of the smoking process, i.e., there is less perception of an increase in mainstream smoke temperature.
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