Nanoscale catalyst particles/aluminosilicate to reduce carbon monoxide in the mainstream smoke of a cigarette
First Claim
1. A smoking article composition comprising tobacco cut filler, cigarette paper and/or cigarette filter material further comprising a catalyst capable of converting carbon monoxide to carbon dioxide, wherein the catalyst comprises nanoscale catalyst particles dispersed within a porous aluminosilicate matrix.
1 Assignment
0 Petitions
Accused Products
Abstract
A smoking article composition and a method of making a smoking article composition comprising tobacco cut filler, cigarette paper and/or cigarette filter material further comprising a catalyst capable of converting carbon monoxide to carbon dioxide, wherein the catalyst comprises nanoscale catalyst particles dispersed within a porous aluminosilicate matrix. The catalyst can be formed by combining nanoscale catalyst particles or a metal precursor solution thereof with an alumina-silica sol mixture to form a slurry, gelling the slurry to form the co-gel, heating the co-gel to form a catalyst comprising nanoscale catalyst particles dispersed within a porous aluminosilicate matrix. The catalyst can be incorporated in tobacco cut filler, cigarette paper and/or cigarette filter material by spraying, dusting and/or immersion.
-
Citations
48 Claims
- 1. A smoking article composition comprising tobacco cut filler, cigarette paper and/or cigarette filter material further comprising a catalyst capable of converting carbon monoxide to carbon dioxide, wherein the catalyst comprises nanoscale catalyst particles dispersed within a porous aluminosilicate matrix.
-
20. A method of making a smoking article composition comprising tobacco cut filler, cigarette paper and/or cigarette filter material further comprising a catalyst, comprising the steps of:
-
combining nanoscale catalyst particles or a metal precursor solution thereof with an alumina-silica sol mixture to form a slurry, gelling the slurry to form a co-gel, heating the co-gel to form a catalyst comprising nanoscale catalyst particles dispersed within a porous aluminosilicate matrix; and
incorporating the catalyst in tobacco cut filler, cigarette paper and/or cigarette filter material. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
-
Specification