Cigarette filter containing dry water and a porphyrin
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United States of America Patent
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Mar 11, 2003
Issued Date -
N/A
app pub date -
Nov 20, 2000
filing date -
Jan 11, 1993
priority date (Note) -
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Abstract
A tobacco smoke filter comprising a porous substrate comprising dry water and a porphyrin dispersed therein. The porous substrate can further comprise microcapsules. The microcapsules can comprise one or more substances selected from the group consisting of chlorophyllin, methylcellulose, sodium pyroglutamate and a vegetable oil. The porous substrate can further comprise sodium pyroglutamate.
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