A composition comprising an aerosol-generating material and a binder and uses thereof

Abstract

The invention relates compositions comprising an aerosol-generating material and a binder, the aerosol-generating material comprising a dried precursor material comprising an extract from a flavour- and/or active-containing plant material and optionally an aerosol-former material. The compositions may be used to generate an aerosol. For example, the compositions may be used in combustible or non-combustible aerosol-provision systems. The invention also relates to aerosol-provision systems comprising the compositions, and methods of providing the compositions and substrates comprising the compositions.

1 . A composition comprising an aerosol-generating material and a binder in a ratio of from about 1:10 to about 2:1 by weight, the aerosol-generating material comprising a dried precursor material comprising an extract from a flavour- and/or active-containing plant material. 
     
     
         2 . A composition as claimed in  claim 1 , wherein the binder is selected from the group consisting of: thermoreversible gelling agents; starches; polysaccharides; polysaccharide derivatives; celluloses; cellulose derivatives; gums; protein materials; polyol matrix materials; waxes; wax esters; and other polymers. 
     
     
         3 . A composition as claimed in  claim 1 , wherein the composition has adhesive properties. 
     
     
         4 . A composition as claimed in  claim 1 , wherein the aerosol-generating material is suspended or at least partially dissolved in the binder. 
     
     
         5 . A composition as claimed in  claim 1 , wherein the aerosol-generating material comprises an aerosol-former material. 
     
     
         6 . A composition as claimed in  claim 1 , the precursor material comprising from about 10 to about 95% by weight extract from a flavour- or active-containing plant material. 
     
     
         7 . A composition as claimed in  claim 1 , the precursor material comprising from about 1 to about 36 wt % aerosol-former material. 
     
     
         8 . A composition as claimed in  claim 1 , the precursor material comprising from 0 to about 40% by weight of an excipient. 
     
     
         9 . A composition as claimed in  claim 1 , the aerosol-generating material comprising from 45 to about 100% by weight dried extract from the flavour- or active-containing plant material. 
     
     
         10 . A composition as claimed in  claim 1 , the aerosol-generating material comprising from about 1 to about 34% by weight aerosol-former material. 
     
     
         11 . A composition as claimed in  claim 1 , wherein the plant material is selected from the group consisting of tobacco, eucalyptus, star anise, cocoa and hemp. 
     
     
         12 . A composition as claimed in  claim 1 , wherein the extract from a flavour- or active-containing plant material is an aqueous extract. 
     
     
         13 . A composition as claimed in  claim 1 , wherein the extract from a flavour- or active-containing plant material is an aqueous tobacco extract. 
     
     
         14 . A composition as claimed in  claim 1 , the aerosol-generating material having a water content of no more than about 5% (calculated on a wet weight basis). 
     
     
         15 . A composition as claimed in  claim 1 , further comprising an additional flavour or active. 
     
     
         16 . A composition as claimed in  claim 1 , wherein the composition does not comprise an added filler or diluent material. 
     
     
         17 . A substrate comprising a composition as claimed in  claim 1 , on a support. 
     
     
         18 . A substrate as claimed in  claim 17 , wherein the support comprises one or more selected from the group consisting of: paper, card, paperboard, cardboard, reconstituted material, a plastics material, a ceramic material, activated carbon, glass, a sintered material, a composite material, a plant-derived material, a fabric or fleece, a fibrous tow a metal, or a metal alloy. 
     
     
         19 . A substrate as claimed in  claim 17 , wherein the composition covers at least a portion of a surface of the support. 
     
     
         20 . A substrate as claimed in  claim 17 , wherein a plurality of discrete portions of the composition are provided on the support. 
     
     
         21 . A substrate as claimed in  claim 17 , wherein the composition is dried or cured. 
     
     
         22 . A substrate as claimed in  claim 17 , wherein the composition is used to adhere parts of the substrate to each other. 
     
     
         23 . A substrate as claimed in  claim 17 , wherein the support comprises a heating material. 
     
     
         24 . An article comprising a composition as claimed in  claim 1 . 
     
     
         25 . A non-combustible aerosol-provision system comprising a composition as claimed in  claim 1 . 
     
     
         26 . A method of providing a composition as claimed in  claim 1 , comprising:
 drying a precursor material comprising an extract from a flavour- and/or active-containing plant material to form an aerosol-generating material; and   combining the aerosol-generating material with a binder.   
     
     
         27 . A method as claimed in  claim 26 , further comprising adjusting the particle size of the aerosol-generating material. 
     
     
         28 . A method as claimed in  claim 26 , wherein the aerosol-generating material is suspended or at least partially dissolved in the binder. 
     
     
         29 . A method of providing a substrate as claimed in  claim 17 , comprising:
 drying a precursor material comprising an extract from a flavour- and/or active-containing plant material to form an aerosol-generating material;   combining the aerosol-generating material with a binder; and   applying the composition to a support.   
     
     
         30 . A method as claimed in  claim 29 , wherein the composition is dried or cured in contact with the support. 
     
     
         31 . A method as claimed in  claim 26 , wherein the precursor material is dried by spray-drying or freeze-drying.