ENCAPSULATED VOLATILE LIQUID SOURCE FOR AN AEROSOL-GENERATING SYSTEM

• US 20150313285A1
• Filed: 12/16/2013
• Published: 11/05/2015
• Est. Priority Date: 12/18/2012
• Status: Abandoned Application

• Current Assignee: Philip Morris Products SA (Philip Morris Limited)
• Original Assignee: Philip Morris Products SA (Philip Morris Limited)
• Inventors: WALLER, Judith, MOOR, Philippe
• Application Number:
  US14/653,424
• Publication Number:
  US 20150313285A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A24B 15/165 comprising as heat source a carbon fuel or an oxidized or thermally degraded carbonaceous fuel, e.g. carbohydrates, cellulosic material
• CPC Class Codes: A24F 40/10 Devices using liquid inhalable precursors
• CPC Class Codes: A24F 40/42 Cartridges or containers for inhalable precursors
• CPC Class Codes: A61M 11/04 operated by the vapour pressure of the liquid to be sprayed or atomised air-humidification, e.g. "room humidifiers" F24F6/00
• CPC Class Codes: A61M 15/06 Inhaling appliances shaped like cigars, cigarettes or pipes
• CPC Class Codes: A61M 2205/8225 using incorporated gas cartridges for the driving gas
• CPC Class Codes: F04C 2270/041 Controlled or regulated

Abstract

An aerosol-generating system is provided, including an encapsulated volatile liquid source including: a sorption element; a volatile liquid having a vapour pressure of at least about 20 Pa at 25° C. sorbed on the sorption element; and a sealant having a melting point of between about 40° C. and about 120° C. encapsulating the sorption element. The volatile liquid comprises a 2-oxo acid.

Claims

1. An aerosol-generating system comprising an encapsulated volatile liquid source comprising:

a sorption element;

a volatile liquid having a vapour pressure of at least about 20 Pa at 25°

C. sorbed on the sorption element, wherein the volatile liquid comprises a 2-oxo acid; and

a sealant having a melting point of between about 40°

C. and about 120°

C. encapsulating the sorption element.

2. The aerosol-generating system according to claim 1, wherein the volatile liquid has a vapour pressure of at least about 50 Pa at 25°

C.

3. The aerosol-generating system according to claim 1, wherein the acid is selected from the group consisting of 3-methyl-2-oxovaleric acid, pyruvic acid, 2-oxovaleric acid, 4-methyl-2-oxovaleric acid, 3-methyl-2-oxobutanoic acid, 2-oxooctanoic acid, and combinations thereof.

4. The aerosol-generating system according to claim 3, wherein the acid is pyruvic acid.

5. The aerosol-generating system according to any preceding claim 1, wherein the sealant has a melting point of between about 40°

C. and about 70°

C.

6. The aerosol-generating system according to any preceding claim 1, wherein the sealant comprises a wax.

7. The aerosol-generating system according to claim 6, wherein the sealant comprises one or more waxes selected from the group consisting of beeswax, carnauba wax, candelilla wax, petroleum waxes, polyolefin waxes, and derivatives thereof.

9. The aerosol-generating system according to claim 1, wherein the sorption element is a porous adsorption element.

11. The aerosol-generating system according to claim 1, further comprising:

heating means for heating the encapsulated volatile liquid source to a temperature above the melting point of the sealant.

12. The aerosol-generating system according to claim 1, wherein the aerosol-generating system simulates a cigarette.

8. The aerosol-generating system according to claim wherein the sealant comprises a paraffin wax.

10. An aerosol-generating system comprising:

an acid source; and

a nicotine source,

wherein the acid source is an encapsulated volatile liquid source comprising;

a sorption element;

a volatile liquid having a vapour pressure of at least about 20 Pa at 25°

C. sorbed on the sorption element, wherein the volatile liquid comprises a 2-oxo acid; and

a sealant having a melting point of between about 40°

C. and about 120°

C. encapsulating the sorption element.

13. An encapsulated volatile liquid source comprising:

a sorption element;

a volatile liquid having a vapour pressure of at least about 20 Pa at 25°

C. sorbed on the sorption element, wherein the volatile liquid comprises a 2-oxo acid; and

a sealant having a melting point of between about 40°

C. and about 120°

C. encapsulating the sorption element.