Tobacco smoke filter for removing toxic compounds
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United States of America Patent
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-
May 5, 1998
Issued Date -
N/A
app pub date -
May 15, 1996
filing date -
Jan 11, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tobacco smoke filter comprising a porous substrate having a humectant, such as sodium pyroglutamate, dispersed therein to absorb moisture from the tobacco smoke thereby wet-filtering the tobacco smoke. The tobacco smoke filter can also comprise a porous substrate having microcapsules dispersed therein. The microcapsules can comprise a humectant such as sodium pyroglutamate. The microcapsules further preferably comprise one or more of methylcellulose, chlorophyllin and at least one vegetable oil. The tobacco smoke filter can also comprise a porous substrate having dry water and a porphyrin dispersed therein. The tobacco smoke filter can also comprise a porous substrate having a copper-containing porphyrin dispersed therein.
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