Article for use in a non-combustible aerosol provision system

Abstract

An article for use with a non-combustible aerosol-provision device. A body of aerosol-generating material includes at least one of a recess extending from a distal end of the article and a cavity within the body of aerosol-generating material. The cross-sectional area of the recess or cavity decreases along a longitudinal axis of the article. The article including a body of aerosol-generating material having a longitudinal axis, can include a first portion having a first cross sectional area of aerosol-generating material perpendicular to the longitudinal axis and a second portion having a second cross sectional area of aerosol-generating material perpendicular to the longitudinal axis, the second cross sectional area being at least 5% greater than the first cross sectional area. The body of aerosol-generating material can include a heatable element in the shape of a cone, a truncated cone, a pyramid or a truncated pyramid. Systems including the article and methods of manufacture are also described.

1 . An article for use with a non-combustible aerosol-provision device, the article comprising a body of aerosol-generating material comprising at least one of:
 a recess extending from a distal end of the article; and   a cavity within the body of aerosol-generating material,   wherein the cross-sectional area of the recess or cavity decreases along a longitudinal axis of the article.   
     
     
         2 . An article for use with a non-combustible aerosol-provision device, the article comprising a body of aerosol-generating material having a longitudinal axis, the article comprising a first portion having a first cross sectional area of aerosol-generating material perpendicular to said longitudinal axis and a second portion having a second cross sectional area of aerosol-generating material perpendicular to said longitudinal axis, the second cross sectional area being at least 5% greater than the first cross sectional area. 
     
     
         3 . An article according to  claim 2 , wherein the body of aerosol-generating material comprises at least one of:
 a recess extending into the aerosol-generating material from a distal end of the article; and   a cavity within the body of aerosol-generating material,   wherein said first portion is closer to the distal end of the article than the second portion.   
     
     
         4 . An article according to  claim 1 , wherein the cross-sectional area of the recess or cavity continuously decreases along the longitudinal axis of the article. 
     
     
         5 . An article according to  claim 1 , wherein the cross-sectional area of the recess or cavity decreases along the longitudinal axis of the article at a substantially continuous rate. 
     
     
         6 . An article according to  claim 1 , wherein the body of aerosol-generating material is separated from the recess or cavity by a material layer. 
     
     
         7 . An article according to  claim 6 , wherein the material layer comprises a sheet material and/or an amorphous solid material. 
     
     
         8 . An article according to  claim 6 or 7 , wherein the material layer comprises an aerosol-modifying agent. 
     
     
         9 . An article according to  claim 1 , wherein the body of aerosol-generating material has a length, and the recess or cavity extends through at least 25%, of the length of the body of aerosol-generating material. 
     
     
         10 . An article according to  claim 1 , wherein the maximum diameter of the recess or cavity is greater than 50% of the diameter of the body of aerosol generating material. 
     
     
         11 . An article according to  claim 1 , wherein the maximum diameter of the recess or cavity is less than 90% of the diameter of the body of aerosol generating material. 
     
     
         12 . An article according to  claim 1 , wherein the minimum diameter of the recess or cavity is less than 20% of the maximum diameter of the recess. 
     
     
         13 . An article according to  claim 1 , wherein the boundary of the recess or cavity is described by a cone or a truncated cone and/or wherein the boundary of the recess or cavity has a surface area of at least about 60 mm 2 . 
     
     
         14 . An article according to  claim 1 , wherein the body of aerosol-generating material comprises plant based materials, and/or aerosol forming material. 
     
     
         15 . An article according to  claim 1 , wherein the body of aerosol-generating material comprises extruded and/or molded material. 
     
     
         16 . An article according to  claim 1 , wherein the article is configured to receive a heater having a conical profile. 
     
     
         17 . An article according to  claim 1 , wherein the body of aerosol-generating material comprises a first aerosol-generating material and a second aerosol-generating material, wherein the first and second aerosol-generating materials are provided at different positions along the longitudinal axis of the article. 
     
     
         18 . A body of aerosol-generating material comprising a heatable element in the shape of a cone, a truncated cone, a pyramid or a truncated pyramid. 
     
     
         19 . A body of aerosol-generating material comprising at least one of:
 a recess extending from an end of the body of aerosol-generating material; and   a cavity within the body of aerosol-generating material,   wherein the cross-sectional area of the recess or cavity decreases along a longitudinal axis of the article.   
     
     
         20 . A body of aerosol-generating material having a longitudinal axis, the body comprising a first portion having a first cross sectional area of aerosol-generating material perpendicular to said longitudinal axis and a second portion having a second cross sectional area of aerosol-generating material perpendicular to said longitudinal axis, the second cross sectional area being at least 5% greater than the first cross sectional area. 
     
     
         21 . A body according to  claim 20 , wherein the body is substantially in the shape of a cone, a truncated cone, a pyramid or a truncated pyramid. 
     
     
         22 . A body according to  claim 21 , wherein the body comprises a hollow channel extending therethrough, optionally wherein said hollow channel passes through said longitudinal axis. 
     
     
         23 . A body according to  claim 21 , wherein the body comprises an outer surface area arranged to contact a heatable element of an aerosol provision device in use, to provide a heat transfer area between the aerosol generating material and the heatable element, where the outer surface area is at least about 60 mm 2 . 
     
     
         24 . An article for use with a non-combustible aerosol-provision device, the article comprising a body of aerosol-generating material according  claim 18 . 
     
     
         25 . An aerosol provision system comprising:
 an article according to  claim 1 ; and   an aerosol provision device.   
     
     
         26 . An aerosol provision system according to  claim 25 , wherein the device comprises a heatable element in the shape of a cone, a truncated cone, a pyramid or a truncated pyramid. 
     
     
         27 . An aerosol provision system comprising:
 an article comprising a body or aerosol-generating material comprising an aerosol-generating material surface; and   an aerosol provision device comprising a heatable element, wherein the heatable element comprises a heating surface, wherein said aerosol-generating material surface and said heating surface are arranged to be brought together in use to provide a heat transfer area between the aerosol generating material and the heatable element of at least about 60 mm 2 .   
     
     
         28 . A method of forming a body of aerosol-generating material, the method comprising:
 forming a body of aerosol generating material; and   providing a recess extending from an end of the body of aerosol-generating material, wherein the cross-sectional area of the recess decreases along a longitudinal axis of the article.   
     
     
         29 . A method of forming a body of aerosol-generating material, the method comprising:
 generating a flow of aerosol-generating material;   inserting a heatable element into the flow of aerosol-generating material, wherein the heatable element is in the shape of a cone, a truncated cone, a pyramid or a truncated pyramid.