Tobacco – Smoke separator or treater – By chemical reaction – e.g. – ion-exchange – chelating,...
Reexamination Certificate
2005-06-14
2005-06-14
Walls, Dionne A. (Department: 1731)
Tobacco
Smoke separator or treater
By chemical reaction, e.g., ion-exchange, chelating,...
C131S365000, C131S360000, C131S207000, C162S139000, C162S181500
Reexamination Certificate
active
06904918
ABSTRACT:
A low sidestream smoke cigarette comprises a conventional tobacco rod and a non-combustible treatment material for the rod. The treatment material has a porosity less than about 200 Coresta units and a sidestream smoke treatment composition. The treatment composition comprises, in combination, an oxygen storage and donor metal oxide oxidation catalyst and an essentially non-combustible finely divided porous particulate adjunct for said catalyst. In addition, the invention provides a low sidestream smoke cigarette unit that comprises a cigarette with conventional cigarette paper surrounding a conventional tobacco rod and a non-combustible treatment material surrounding and being substantially in contact with the conventional cigarette paper. The non-combustible treatment material comprises a sidestream smoke treatment composition, wherein the non-combustible treatment material has a porosity less than about 200 Coresta units and the treatment composition comprises, in combination, an oxygen storage and donor metal oxide oxidation catalyst and an essentially non-combustible finely divided porous particulate adjunct for said catalyst.
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Becker E. Robert
Snaidr Stanislav M.
Banner & Witcoff , Ltd.
Rothmans, Benson & Hedges Inc.
Walls Dionne A.
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