Aerosol generation

Abstract

The present invention relates to a method of forming an aerosol-generating material; aerosol-generating materials obtained by the method; articles for use within a non-combustible aerosol provision system; and non-combustible aerosol provision systems comprising the article. The method comprises: providing a slurry comprising gelling agent, aerosol-forming agent, solvent and any optional further components of the aerosol-generating material: adding the constituent, derivative or extract of cannabis to the slurry; forming a layer of the slurry; and drying the slurry to form the aerosol-generating material.

1 . A method of forming an aerosol-generating material comprising: a constituent, derivative or extract of  cannabis ; aerosol-former material; gelling agent; and optionally filler; the method comprising:
 (a) providing a slurry comprising the gelling agent, aerosol-forming agent, a solvent and any optional further components of the aerosol-generating material;   (b) adding the constituent, derivative or extract of  cannabis  to the slurry;   (c) forming a layer of the slurry; and   (d) drying the slurry to form the aerosol-generating material.   
     
     
         2 . The method according to  claim 1 , wherein the slurry is set to form a gel prior to drying step (d). 
     
     
         3 . The method according to  claim 1 , wherein the thickness of the layer formed in step (c) is less than 4 mm. 
     
     
         4 . The method according to  claim 3 , wherein the thickness of the layer is in the range of about 1 mm to about 3 mm, suitably about 1.5 mm to about 2.5 mm. 
     
     
         5 . The method according to  claim 1 , wherein the aerosol-generating material comprises 1-60 wt % gelling agent. 
     
     
         6 . The method according to  claim 1 , wherein the aerosol-generating material comprises 5-80 wt % aerosol-former material. 
     
     
         7 . The method according to  claim 1 , wherein the aerosol-generating material comprises 1-50 wt % constituent(s), derivative(s) or extract(s) of  cannabis.    
     
     
         8 . The method according to  claim 1 , wherein the aerosol-generating material further comprises a setting agent. 
     
     
         9 . The method according to  claim 1 , wherein the aerosol-former material comprises or is one or more of 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. 
     
     
         10 . (canceled) 
     
     
         11 . The method according to  claim 1 , wherein the gelling agent comprises or is one or more compounds selected from polysaccharide gelling agents, such as alginate, pectin, starch or a derivative thereof, cellulose or a derivative thereof, pullulan, carrageenan, agar and agarose; gelatin; gums, such as xanthan gum, guar gum and acacia gum; silica or silicone compounds, such as PDMS and sodium silicate; clays, such as kaolin; and polyvinyl alcohol. 
     
     
         12 . The method according to  claim 1 , wherein the gelling agent is selected from the group consisting of alginate and a cellulose derivative. 
     
     
         13 . The method according to  claim 1 , wherein the gelling agent is selected from hydroxyl methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose (CMC), hydroxypropyl methylcellulose (HPMC, methyl cellulose, ethyl cellulose, cellulose acetate (CA), cellulose acetate butyrate (CAB), and cellulose acetate propionate (CAP). 
     
     
         14 . The method according to  claim 1 , wherein the gelling agent is not crosslinked. 
     
     
         15 . (canceled) 
     
     
         16 . (canceled) 
     
     
         17 . The method according to  claim 1 , wherein the constituent, derivative or extract of  cannabis  is a cannabinoid. 
     
     
         18 . The method according to  claim 17 , wherein the cannabinoid is selected from cannabigerol (CBG), cannabichromene (CBC), cannabidiol (CBD), tetrahydrocannabinol (THC), cannabinol (CBN), cannabinodiol (CBDL), cannabicyclol (CBL), cannabivarin (CBV), tetrahydrocannabivarin (THCV), cannabidivarin (CBDV), cannabichromevarin (CBCV), cannabigerovarin (CBGV), cannabigerol monomethyl ether (CBGM), cannabinerolic acid, cannabidiolic acid (CBDA), cannabinol propyl variant (CBNV), cannabitriol (CBO), tetrahydrocannabmolic acid (THCA), and tetrahydrocannabivarinic acid (THCV A). 
     
     
         19 . (canceled) 
     
     
         20 . The method according to  claim 1 , wherein the layer of slurry is formed on a carrier. 
     
     
         21 . The method according to  claim 20 , wherein the aerosol-generating material contains no filler. 
     
     
         22 . (canceled) 
     
     
         23 . An aerosol-generating material, obtainable or obtained by a method according to  claim 1 . 
     
     
         24 . An article for use within a non-combustible aerosol provision system, the article comprising an aerosol-generating material according to  claim 23 . 
     
     
         25 . A non-combustible aerosol provision system comprising the article according to  claim 24  and a non-combustible aerosol provision device, the non-combustible aerosol provision device comprising an aerosol-generation device to generate aerosol from the article when the article is used with the non-combustible aerosol provision device.