Article for use in an aerosol provision system

Abstract

An article for use in a non-combustible aerosol provision system includes a first aerosol generating material and a component downstream of the first aerosol generating material, wherein the component comprises a tubular portion and wherein the tubular portion comprises a wall comprising a second aerosol generating material. An article is also described including a first aerosol generating material, and a component downstream of the first aerosol generating material, wherein the component comprises a body of material and wherein the body of material comprises a second aerosol generating material. Methods for forming an article and a system are also described.

1 . An article for use in a non-combustible aerosol provision system, the article comprising:
 a first aerosol generating material, and a component downstream of the first aerosol generating material, wherein the component comprises a tubular portion and wherein the tubular portion comprises a wall comprising a second aerosol generating material.   
     
     
         2 . The article according to  claim 1 , wherein the component comprises a body of material. 
     
     
         3 . The article for use in a non-combustible aerosol provision system, the article comprising: a first aerosol generating material, and a component downstream of the first aerosol generating material, wherein the component comprises a body of material and wherein the body of material comprises a second aerosol generating material. 
     
     
         4 . The article according to  claim 3 , wherein the component comprises a tubular portion comprising a wall. 
     
     
         5 . The article according to  claim 1 , wherein the tubular portion is at a downstream end of the component. 
     
     
         6 . The article according to  claim 1 , wherein the tubular portion is at an upstream end of the component. 
     
     
         7 . The article according to any one of  claim 1 , wherein the second aerosol generating material is on the inner wall of the tubular portion. 
     
     
         8 . The article according to any one of  claim 1 , wherein the tubular portion defines a cavity in the component. 
     
     
         9 . The article according to  claim 8 , wherein the cavity has an internal volume greater than 450 mm3. 
     
     
         10 . The article according to  claim 1 , further comprising at least one hollow tubular element, wherein the hollow tubular element forms said tubular portion and/or is provided as a component separate from said tubular portion. 
     
     
         11 . The article according to  claim 10 , wherein the at least one hollow tubular element is formed from filamentary tow. 
     
     
         12 . The article according to  claim 10 , wherein the at least one hollow tubular element is formed as a paper tube. 
     
     
         13 . The article according to  claim 10 , wherein the at least one hollow tubular element is formed from material having a density between 0.25 g/cc and 0.75 g/cc, or between 0.25 g/cc and 0.65 g/cc, or between 0.35 g/cc and 0.65 g/cc. 
     
     
         14 . The article according to  claim 10 , wherein the at least one hollow tubular element comprises an internal diameter of greater than 3.0 mm, or an internal diameter of greater than 3.5 mm. 
     
     
         15 . The article according to  claim 10 , wherein the at least one hollow tubular element comprises a minimum wall thickness of greater than 0.9 mm. 
     
     
         16 . The article according to  claim 10 , wherein the at least one hollow tubular element comprises a first hollow tubular element, and the component further comprises a second hollow tubular element. 
     
     
         17 . The article according to  claim 16 , wherein the second hollow tubular element is at the opposite end of the component to the first hollow tubular element. 
     
     
         18 . The article according to  claim 16 , wherein the component further comprises a cylindrical body of material positioned between the first hollow tubular element and the second hollow tubular element. 
     
     
         19 . The article according to  claim 16 , wherein the second hollow tubular element is formed from filamentary tow. 
     
     
         20 . The article according to  claim 16 , wherein the second hollow tubular element comprises a length of greater than about 10 mm or greater than about 12 mm. 
     
     
         21 . The article according to  claim 16 , wherein the second hollow tubular element is formed as a paper tube. 
     
     
         22 . The article according to  claim 12 , wherein the paper tube is formed from at least two layers of paper. 
     
     
         23 . The article according to  claim 22 , wherein the at least two layers of paper each comprise a butt seam. 
     
     
         24 . The article according to  claim 22 , wherein the at least two layers of paper are concentrically wrapped. 
     
     
         25 . The article according to  claim 22 , wherein the total thickness of the paper tube is in the range about 50 micrometres to about 500 micrometres, about 100 to about 400 micrometres, or about 200 micrometres to about 350 micrometres. 
     
     
         26 . The article according to  claim 2 , wherein the body of material is cylindrical and formed from filamentary tow. 
     
     
         27 . The article according to  claim 26 , wherein the filamentary tow comprises a weight per mm of length of the body of material which is between about 10% and about 30% of the range between the minimum and maximum weights of a tow capability curve generated for the filamentary tow. 
     
     
         28 . The article according to  claim 1 , wherein the second aerosol generating material comprises a flavourant and/or an amorphous solid. 
     
     
         29 . The article according to  claim 1 , wherein the second aerosol generating material comprises microcapsules. 
     
     
         30 . The article according to  claim 29 , wherein the microcapsules contain an aerosol forming additive. 
     
     
         31 . The article according to  claim 30 , wherein the microcapsules are configured to release the aerosol forming additive on application of heat. 
     
     
         32 . The article according to  claim 1 , wherein the component comprises ventilation. 
     
     
         33 . The article according to  claim 32 , wherein the level of ventilation into the component is less than 50%, or within the range of 45% to 65% of the volume of aerosol passing through the component, or between 40% and 60% of the volume of aerosol passing through the component. 
     
     
         34 . The article according to  claim 32 , wherein the ventilation is provided by ventilation apertures into the tubular portion. 
     
     
         35 . The article according to  claim 32 , wherein the ventilation is provided by an inherently porous material. 
     
     
         36 . The article according to  claim 1 , wherein the second aerosol generating material comprises an aerosol-former material comprising at least one of glycerine, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-Erythritol, ethyl vanillate, ethyl laurate, a diethyl suberate, triethyl citrate, triacetin, a diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate. 
     
     
         37 . The article according to  claim 36 , wherein the second aerosol generating material comprises at least 10% by weight, or at least 15% by weight, or at least 20% by weight of the an aerosol-former material. 
     
     
         38 . The article according to  claim 31 , wherein the first aerosol generating material is wrapped by a wrapper having a level of permeability greater than about 2000 Coresta Units. 
     
     
         39 . The article according to  claim 1 , wherein a first air flow path is defined in which air drawn through the article at its downstream end passes through the first aerosol generating material, and a second air flow path is defined in which air drawn through the article at its downstream end is drawn into the article through the at least one ventilation aperture in the component, and the resistance to draw of the second air flow path is greater than the resistance to draw of the first air flow path. 
     
     
         40 . The article according to  claim 1 , wherein the article is configured such that when the article is inserted into the non-combustible aerosol provision device, the minimum distance between a heater of the non-combustible aerosol provision device and the tubular portion of the article is at least about 3 mm. 
     
     
         41 . A method for forming an article according to  claim 1 , comprising applying aerosol generating material to the wall of the tubular portion. 
     
     
         42 . A method for forming an article according to  claim 1 , comprising applying aerosol generating material to the body of material. 
     
     
         43 . A non-combustible aerosol provision system comprising: an article according to  claim 1 ; and a non-combustible aerosol provision device. 
     
     
         44 . The non-combustible aerosol provision system according to  claim 43 , wherein the article comprises an aerosol-modifying component, and wherein the non-combustible aerosol provision device comprises a heater which, in use, is operable to heat the first aerosol generating material such that the first aerosol generating material provides an aerosol, wherein the aerosol-modifying component is downstream of the aerosol generating material and comprises: a first capsule in a first portion of the aerosol modifying component, wherein the first portion of the aerosol-modifying component is heated to a first temperature during operation of the heater to generate the aerosol; and, a second capsule in a second portion of the aerosol-modifying component located downstream of the first portion, wherein the second portion is heated to a second temperature during operation of the heater to generate aerosol, and wherein the second temperature is at least 4 degrees Celsius lower than the first temperature.