Cigarette and cigarette filter element therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 21, 1992
Issued Date -
N/A
app pub date -
Nov 6, 1990
filing date -
Dec 18, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cigarette comprises a blend of tobacco materials and a filter element provided from a non-woven thermoplastic material. The non-woven material comprises polyester or polypropylene fibers. The non-woven material is in intimate contact with a water soluble tobacco extract and a further material for altering the character of mainstream smoke which passes through the filter element. The tobacco extract can be a spray dried extract which has been subjected to heat treatment. The further material can be an acid (e.g., levulinic acid), a base (e.g., sodium hydroxide) or a salt (e.g., diammonium hydrogen orthophosphate).
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