Aerosol generation

Abstract

Described herein is a laminate aerosol generating material, wherein the material comprises an aerosol-forming layer attached to a carrier layer, wherein the aerosol-forming layer comprises an amorphous solid, and wherein the carrier layer has a thickness from about 10 μm to about 2.5 mm.

1 . A laminate aerosol generating material, wherein the material comprises an aerosol-forming layer attached to a carrier layer, wherein the aerosol-forming layer comprises an amorphous solid, and wherein the carrier layer has a thickness from about 10 μm to about 2.5 mm. 
     
     
         2 . A laminate aerosol generating material according to  claim 1 , wherein the laminate aerosol generating material has a thickness of less than about 4 mm. 
     
     
         3 . A laminate aerosol generating material according to  claim 1 , wherein the carrier comprises one or more materials selected from metal foil, paper, carbon paper, greaseproof paper, ceramic, carbon allotropes, plastic, cardboard, wood or combinations thereof. 
     
     
         4 . A laminate aerosol generating material according to  claim 1 , wherein the amorphous solid comprises:
 1-60 wt % of a gelling agent; and/or   5-80 wt % of an aerosol generating agent; and/or   0.1-60 wt % of an active substance;   and optionally, a flavorant;   wherein these weights are calculated on a dry weight basis.   
     
     
         5 . An aerosol generating article for use in an aerosol generating assembly, the article comprising a laminate aerosol generating material according to  claim 1 . 
     
     
         6 . An aerosol generating assembly comprising an aerosol generating material and a heater configured to heat but not burn the aerosol generating material, wherein the aerosol generating material comprises an aerosol-forming layer which comprises an amorphous solid, and wherein substantially all of the aerosol-forming layer is disposed in the assembly at a distance from the heater of less than about 4 mm. 
     
     
         7 . An aerosol generating assembly according to  claim 6  comprising a laminate aerosol generating material comprising:
 an aerosol-forming layer attached to a carrier layer, wherein the aerosol-forming layer comprises an amorphous solid, and wherein the carrier layer has a thickness from about 10 μm to about 2.5 mm. 
 
     
     
         8 . An aerosol generating article for use in an aerosol generating assembly, the article comprising an aerosol generating material, wherein the aerosol generating material comprises an aerosol-forming layer which comprises an amorphous solid, and wherein the article is configured for use in the assembly such that substantially all of the aerosol-forming layer is disposed in the assembly at a distance from the heater of less than about 4 mm. 
     
     
         9 . A method of making laminate aerosol generating material according to  claim 1 . 
     
     
         10 . A method according to  claim 9 , the method comprising (a) forming a slurry comprising components of the amorphous solid or precursors thereof, (b) applying the slurry to the carrier, (c) setting the slurry to form gel and (d) drying to form an amorphous solid. 
     
     
         11 . A method according to  claim 10 , wherein the drying step causes the set material thickness to reduce by at least 80%, suitably 85% or 87%. 
     
     
         12 . A method according to  claim 10 , wherein (c) comprises the addition of a setting agent to the slurry.