# US 4,397,321 A · Smoking preparations

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- Number: US 4,397,321 A
- Document ID: US4397321A
- Status: Granted
- Kind: A
- Application number: 06/295,898
- Filed: 1981-08-24
- Granted: 1983-08-09
- Earliest claimed: 1981-08-24
- Assignees: Celanese Corporation
- Inventors: Dagobert E. Stuetz
- Web page: https://patentgrep.com/patent/US4397321A

## CPC

- A24D 3/16: of inorganic materials
- A24D: CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES

## Abstract

This invention provides tobacco and non-tobacco smoking compositions which deliver smoke of reduced tar and nicotine content, and with a substantially reduced carbon monoxide content. In one of its embodiments this invention provides smoking preparations which contain a combustible filler, and uniformly dispersed therein a catalyst composition consisting of (a) fine ash, and (b) a transition metal compound.

## Claims

### Claim 1

A smoking preparation comprising a tobacco filler having fine ash uniformly dispersed therein in an effective amount to reduce carbon monoxide content of smoke delivered by a tobacco filler.

### Claim 2 (depends on 1)

A smoking preparation in accordance with claim 1 wherein the ash component is tobacco ash.

### Claim 3

A smoking preparation comprising (1) a tobacco filler, and uniformly dispersed therein (2) a catalyst composition comprising (a) fine ash, and (b) at least one component selected from transition metal compounds.

### Claim 4

A smoking preparation comprising (1) combustible filler selected from natural tobacco and reconstituted tobacco, and uniformly dispersed therein (2) between about 0.005-10 weight percent, based on the weight of filler, of the catalyst composition comprising (a) between about 1-10 parts by weight of at least one component selected from potassium and calcium compounds, and (b) between about 0.5-10 parts by weight of at least one component selected from iron and manganese compounds; wherein the particle size of the catalyst composition is less than about 77 microns.

### Claim 5

A smoking prepartion comprising (1) combustible filler selected from natural tobacco and reconstituted tobacco, and uniformly dispersed therein (2) between about 0.005-10 weight percent, based on the weight of filler, of a catalyst composition comprising ash; wherein the particle size of the catalyst composition is less than about 77 microns.

### Claim 6 (depends on 5)

A smoking preparation in accordance with claim 5 wherein the catalyst composition is tobacco ash.

### Claim 7

A smoking preparation comprising (1) combustible filler selected from natural tobacco and reconstituted tobacco, and uniformly dispersed therein (2) between about 0.005-10 weight percent, based on the weight of filler, of a catalyst composition comprising (a) between about 1-10 parts by weight of ash, and (b) between about 0.5-10 parts by weight of at least one component selected from iron and manganese compounds; wherein the particle size of the catalyst composition is less than about 77 microns.

### Claim 8

A method of reducing the carbon monoxide content of smoke delivered by a smoking tobacco preparation which comprises uniformly dispersing in the tobacco filler of the smoking preparation prior to the smoking process a catalyst composition comprising fine ash.

### Claim 9 (depends on 8)

A method in accordance with claim 8 wherein the catalyst composition is tobacco ash.

### Claim 10

A method of reducing the carbon monoxide content of smoke delivered by a smoking tobacco preparation which comprises uniformly dispersing in the tobacco filler of the smoking preparation prior to the smoking process a catalyst composition comprising (a) fine ash, and (b) at least one component selected from transition metal compounds.

### Claim 11 (depends on 10)

A method in accordance with claim 10 wherein the ash component of the catalyst composition is tobacco ash.

### Claim 12

A smoking preparation comprising a combustible filler having fine ash uniformly dispersed therein, wherein the ash component consists of the water-soluble fraction of ash.

### Claim 13

A method of reducing the carbon monoxide content of smoke delivered by a smoking preparation which comprises uniformly dispersing in the combustible filler of the smoking preparation prior to the smoking process a catalyst composition consisting of the water-soluble fraction of ash.

### Claim 14

A method of reducing the carbon monoxide content of smoke delivered by a smoking preparation which comprises uniformly dispersing in the combustible filler of the smoking preparation prior to the smoking process a catalyst composition comprising (a) the water-soluble fraction of ash, and (b) at least one component selected from transition metal compounds.