Aerosol generating composition comprising nicotine and acid or nicotine salt

Abstract

An aerosol-generating material having aerosol generating compositions, consumables for use within a non-combustible aerosol provision system and non-combustible aerosol provision systems. The consumables can include the aerosol-generating composition. The aerosol-generating composition can include an aerosol-generating material, wherein the aerosol-generating material includes about 1 to about 30 wt % nicotine, about 15 to about 80 wt % gelling agent, about 10 to about 60 wt % aerosol-former material, about 1 to about 30 wt % acid; and optionally filler, wherein the molar ratio of nicotine to acid is 2.2:1 or less.

1 . An aerosol-generating composition comprising an aerosol-generating material, wherein the aerosol-generating material comprises:
 about 1 to about 30 wt % nicotine;   about 15 to about 80 wt % gelling agent;   about 10 to about 60 wt % aerosol-former material;   about 1 to about 30 wt % acid; and   optionally filler   wherein the wt % values are calculated on a dry weight basis; and   wherein the molar ratio of nicotine to acid is 2.2:1 or less.   
     
     
         2 . The aerosol-generating composition according to  claim 1 , wherein the molar ratio of nicotine to acid is 1.5:1 or less. 
     
     
         3 . The aerosol-generating composition according to  claim 1 , wherein the molar ratio of nicotine to acid is 1:1 or less. 
     
     
         4 . The aerosol-generating composition according to any of  claims 1 to 3 , wherein the molar ratio of nicotine to acid is 0.5:1 or more. 
     
     
         5 . The aerosol-generating composition according to any of  claims 1 to 4 , wherein the acid comprises one or more of lactic acid, benzoic acid, levulinic acid and pyruvic acid. 
     
     
         6 . The aerosol-generating composition according to any of  claims 1 to 5 , wherein the acid comprises benzoic acid. 
     
     
         7 . The aerosol-generating composition according to any of  claims 1 to 6 , wherein the nicotine is present in an amount of from about 6 to about 30 wt %. 
     
     
         8 . An aerosol-generating composition comprising an aerosol-generating material, wherein the aerosol-generating material comprises:
 about 5 to about 30 wt % nicotine salt;   about 15 to about 80 wt % gelling agent;   about 10 to about 60 wt % aerosol-former material; and   optionally filler   wherein the wt % values are calculated on a dry weight basis.   
     
     
         9 . An aerosol-generating composition comprising an aerosol-generating material, wherein the aerosol-generating material comprises:
 about 1 to about 30 wt % nicotine salt;   about 45 to about 80 wt % gelling agent;   about 10 to about 54 wt % aerosol-former material; and   optionally filler   wherein the wt % values are calculated on a dry weight basis.   
     
     
         10 . The aerosol-generating composition according to any of  claims 1 to 9 , wherein the aerosol-generating material comprises less than about 10 wt % filler. 
     
     
         11 . The aerosol-generating composition according to any of  claims 1 to 10 , wherein the aerosol-generating material comprises less than about 5 wt % filler. 
     
     
         12 . The aerosol-generating composition according to any of  claims 1 to 11 , wherein the aerosol-generating material comprises wood pulp. 
     
     
         13 . The aerosol-generating composition according to any of  claims 1 to 11 , wherein the aerosol-generating material does not comprise filler. 
     
     
         14 . The aerosol-generating composition according to any of  claims 1 to 13 , wherein the gelling agent comprises one or more compounds selected from the group comprising alginates, cellulose derivatives, gums, silica or silicon compounds, clays and combinations thereof. 
     
     
         15 . The aerosol-generating composition according to any of  claims 1 to 14 , wherein the gelling agent comprises alginate and/or carboxymethyl cellulose. 
     
     
         16 . The aerosol-generating composition according to any of  claims 1 to 15 , wherein the aerosol-generating material further comprises a crosslinking agent. 
     
     
         17 . The aerosol-generating composition according to  claim 16 , wherein the crosslinking agent comprises calcium ions. 
     
     
         18 . The aerosol-generating composition according to any of  claims 1 to 15 , wherein the aerosol-generating material does not comprise a crosslinking agent. 
     
     
         19 . The aerosol-generating composition according to any of  claims 1 to 18 , wherein the gelling agent is present in an amount from about 45 to about 70 wt %. 
     
     
         20 . The aerosol-generating composition according to any of  claims 1 to 19 , wherein the aerosol-former material comprises one or more 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. 
     
     
         21 . The aerosol-generating composition according to any of  claims 1 to 20 , wherein the aerosol-former material comprises glycerol. 
     
     
         22 . The aerosol-generating composition according to any of  claims 1 to 21 , wherein the aerosol-former agent is present in an amount from about 15 to about 50 wt %. 
     
     
         23 . The aerosol-generating composition according to any of  claims 1 to 22 , wherein the aerosol-generating material is substantially free from tobacco. 
     
     
         24 . The aerosol-generating composition according to any of  claims 1 to 23 , wherein the aerosol-generating material is in the form of a film. 
     
     
         25 . The aerosol-generating composition according to any of  claims 1 to 23 , wherein the aerosol-generating material is the form of strips, a crimped sheet, a gathered sheet or a shredded sheet. 
     
     
         26 . The aerosol-generating composition according to any of  claims 1 to 25 , wherein the aerosol-generating material comprises a flavour. 
     
     
         27 . The aerosol-generating composition according to  claim 26 , wherein the aerosol-generating material comprises from about 1 to about 65 wt % flavour. 
     
     
         28 . The aerosol-generating composition according to any of  claims 1 to 27 , wherein the aerosol-generating composition consists of the aerosol-generating material. 
     
     
         29 . A consumable for use with a non-combustible aerosol provision system, the consumable comprising the aerosol-generating composition as defined in any of  claims 1 to 28 . 
     
     
         30 . The consumable of  claim 29 , wherein the consumable does not comprise tobacco. 
     
     
         31 . The consumable of  claim 29 or 30 , wherein the aerosol-generating composition consists of nicotine, gelling agent, aerosol-former material, acid and optionally a flavour and/or optionally filler. 
     
     
         32 . The consumable of any of  claims 29 to 31 , wherein the consumable comprises a single aerosol-generating composition, with said aerosol-generating composition being as defined in any of  claims 1 to 28 . 
     
     
         33 . The consumable of any of  claims 29 to 32 , wherein the aerosol-generating composition is in the form of a film. 
     
     
         34 . A non-combustible aerosol provision system comprising the consumable as defined in any of  claims 29 to 33  and a non-combustible aerosol provision device, the non-combustible aerosol provision device comprising an aerosol-generation device arranged to generate aerosol from the consumable when the consumable is used with the non-combustible aerosol provision device. 
     
     
         35 . Use of an aerosol-generating composition as defined in any of  claims 1 to 28  in a consumable for use with a non-combustible aerosol provision device, the non-combustible aerosol provision device comprising an aerosol-generation device arranged to generate aerosol from the consumable when the consumable is used with the non-combustible aerosol provision device. 
     
     
         36 . A slurry comprising:
 about 1 to about 30 wt % nicotine;   about 15 to about 80 wt % gelling agent;   about 10 to about 60 wt % aerosol-former material;   about 1 to about 30 wt % of an acid; and   optionally filler   wherein the wt % values are calculated on a dry weight basis; and   wherein the molar ratio of nicotine to acid is 2.2:1 or less, and   a solvent   
     
     
         37 . A slurry comprising:
 about 5 to about 30 wt % nicotine salt;   about 15 to about 80 wt % gelling agent;   about 10 to about 60 wt % aerosol-former material; and   optionally filler   wherein the wt % values are calculated on a dry weight basis, and   a solvent.   
     
     
         38 . A slurry comprising:
 about 1 to about 30 wt % nicotine salt;   about 45 to about 80 wt % gelling agent;   about 10 to about 54 wt % aerosol-former material; and   optionally filler   wherein the wt % values are calculated on a dry weight basis, and   a solvent.   
     
     
         39 . A slurry according to  claim 36, 37 or 38 , wherein the solvent is water. 
     
     
         40 . A method of making an aerosol-generating composition according to any one of  claims 1 to 28 , the aerosol-generating composition comprising an aerosol-generating material, the method comprising:
 (i) combining
 about 1 to about 30 wt % nicotine; 
 about 15 to about 80 wt % gelling agent; 
 about 10 to about 60 wt % aerosol-former material; 
 about 1 to about 20 wt % of an acid; and 
 optionally filler; 
   wherein these weights are calculated on a dry weight basis; and   wherein the molar ratio of nicotine to acid is less than 2.2:1, and
 a solvent; 
   or combining
 about 5 to about 30 wt % nicotine salt; 
 about 15 to about 80 wt % gelling agent; 
 about 10 to about 60 wt % aerosol-former material; and 
 optionally filler 
   wherein these weights are calculated on a dry weight basis, and
 a solvent; 
   or combining
 about 1 to about 30 wt % nicotine salt; 
 about 45 to about 80 wt % gelling agent; 
 about 10 to about 54 wt % aerosol-former material; and 
 optionally filler 
   wherein the wt % values are calculated on a dry weight basis, and
 a solvent. 
   (ii) forming a layer of the slurry; and   (iii) drying to form the aerosol-generating material.   
     
     
         41 . An aerosol-generating composition formed by the method of  claim 40 . 
     
     
         42 . A method of generating an aerosol comprising a nicotine salt using a non-combustible aerosol provision system according to  claim 34 , the method comprising heating the aerosol-generating composition, optionally to a temperature of less than 350° C.