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US-2019059450-A1 · Feb 28, 2019 · US
Combustible heat source comprising an ignition aid and a binding agent
US11737486B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11737486-B2 |
| Application number | US-202017783594-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 14, 2020 |
| Priority date | Dec 17, 2019 |
| Publication date | Aug 29, 2023 |
| Grant date | Aug 29, 2023 |
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- Title
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Abstract
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A combustible heat source for an aerosol-generating article, the combustible heat source comprising: carbon; an alkaline earth metal peroxide ignition aid; and a binding agent comprising at least one non-cellulosic film-forming polymer.
First claim
Opening claim text (preview).
The invention claimed is: 1. A combustible heat source for an aerosol-generating article, the combustible heat source comprising: carbon; an alkaline earth metal peroxide ignition aid; and a binding agent comprising a combination of carboxymethyl cellulose and at least one non-cellulosic film-forming polymer selected from the group consisting of polyvinyl alcohol, polyethylene glycol, polyvinylpyrrolidone, polyvinyl acetate and graft-copolymers thereof. 2. The combustible heat source according to claim 1 wherein the alkaline earth metal peroxide ignition aid is calcium peroxide. 3. The combustible heat source according to claim 1 wherein the combustible heat source comprises between about 20 percent by weight and about 60 percent by weight of the alkaline earth metal peroxide ignition aid. 4. The combustible heat source according to claim 1 wherein the combustible heat source comprises at least about 3 percent by weight of the binding agent. 5. The combustible heat source according to claim 1 wherein the combustible heat source comprises between about 4 percent by weight and about 15 percent by weight of the binding agent. 6. The combustible heat source according to claim 1 wherein the combustible heat source comprises at least about 0.5 percent by weight of the at least one non-cellulosic film-forming polymer. 7. The combustible heat source according to claim 1 wherein the combustible heat source comprises between about 0.75 percent by dry weight and about 4 percent by weight of the at least one non-cellulosic film-forming polymer. 8. The combustible heat source according to claim 1 wherein the carboxymethyl cellulose is present in the combustible heat source in an amount of at least about 1.5 percent by dry weight. 9. The combustible heat source according to claim 8 wherein the ratio of the percentage by weight of carboxymethyl cellulose to the percentage by weight of the at least one non-cellulosic film-forming polymer in the combustible heat source is at least about 1:1. 10. The combustible heat source according to claim 1 wherein the combustible heat source comprises between about 30 percent by weight and about 55 percent by weight of carbon. 11. The combustible heat source according to claim 1 further comprising one or more carboxylate burn salts. 12. The combustible heat source according to claim 11 wherein the combustible heat source comprises at least about 1 percent by weight of the one or more carboxylate burn salts. 13. An aerosol-generating article comprising: the combustible heat source according to claim 1 ; and an aerosol-forming substrate downstream of the combustible heat source. 14. The combustible heat source of claim 1 , wherein the combustible heat source is substantially homogeneous in composition. 15. The combustible heat source of claim 1 , wherein the carbon, alkaline earth metal peroxide ignition aid, and binding agent are combined to form a mixture. 16. The combustible heat source of claim 1 , wherein the alkaline earth metal peroxide ignition aid, the binding agent and any other components of the combustible heat source form a granulate mixture, wherein the binding agent is dispersed in inter-granular and intra-granular positions within the granulate mixture.
Assignees
Inventors
Classifications
- A24B15/165Primary
comprising as heat source a carbon fuel or an oxidized or thermally degraded carbonaceous fuel, e.g. carbohydrates, cellulosic material · CPC title
Cigarettes with integrated combustible heat sources, e.g. with carbonaceous heat sources · CPC title
consisting of combustible material (matches C06F) · CPC title
Oxygen containing compounds · CPC title
Firelighters or wicks, as additive to a solid fuel · CPC title
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- What does patent US11737486B2 cover?
- A combustible heat source for an aerosol-generating article, the combustible heat source comprising: carbon; an alkaline earth metal peroxide ignition aid; and a binding agent comprising at least one non-cellulosic film-forming polymer.
- Who is the assignee on this patent?
- Philip Morris Products Sa
- What technology area does this patent fall under?
- Primary CPC classification A24B15/165. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Aug 29 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).