Aerosol generation

Abstract

The present disclosure relates to an article for use within a non-combustible aerosol provision system and a non-combustible aerosol provision system. The article includes a filter and an aerosol-generating portion comprising an aerosol-generating material and an encapsulated first aerosol-modifying agent. Upon heating, the encapsulated first aerosol-modifying agent is released once a threshold release temperature has been reached. The filter includes a component holding a second aerosol-modifying agent, wherein the second aerosol-modifying agent is selectively releasable from the component.

1 . An article for use within a non-combustible aerosol provision system, the article comprising a filter and an aerosol-generating portion,
 wherein the aerosol-generating portion comprises an aerosol-generating material and an encapsulated first aerosol-modifying agent,   wherein the encapsulated first aerosol-modifying agent is released on heating to at least a threshold release temperature, and   wherein the filter comprises a component holding a second aerosol-modifying agent, wherein the second aerosol-modifying agent is selectively releasable from the component.   
     
     
         2 . The article of  claim 1 , wherein the first and/or second aerosol-modifying agent comprises a flavourant flavorant. 
     
     
         3 . The article of  claim 1 , wherein the second aerosol-modifying agent has a release temperature in excess of the temperature to which it is exposed on heating. 
     
     
         4 . The article of  claim 1 , wherein the aerosol-generating portion includes a wrapper circumscribing at least part of the aerosol-generating material. 
     
     
         5 . The article of  claim 1 , wherein the encapsulated first aerosol-modifying agent is in the form of a plurality of elements which are mixed with the aerosol-generating material. 
     
     
         6 . The article of  claim 1 , wherein the first and second aerosol-modifying agents are the same. 
     
     
         7 . The article of  claim 1 , wherein the first and second aerosol-modifying agents are different. 
     
     
         8 . The article of  claim 1 , wherein the aerosol-generating material comprises a tobacco material. 
     
     
         9 . The article of  claim 1 , wherein the filter comprises a filter plug which retains the component holding the second aerosol-modifying agent, and wherein the filter plug comprises a non-aerosolizable filtration material. 
     
     
         10 . The article of  claim 9 , wherein the non-aerosolizable filter material comprises one or more of cellulose acetate, a ceramic material, a polymer matrix and activated carbon. 
     
     
         11 . The article of  claim 1 , wherein the aerosol-generating portion further comprises a third aerosol-modifying agent. 
     
     
         12 . The article of  claim 11 , wherein the third aerosol-modifying agent comprises an unencapsulated flavorant. 
     
     
         13 . The article of  claim 1 , wherein the encapsulated first aerosol-modifying agent is encapsulated in an encapsulating material, and wherein the encapsulating material comprises at least one of a polysaccharide material; a cellulosic material; a gelatin; a gum; a protein material; a polyol matrix material; an amorphous solid; a gel; a wax; a polyurethane; polymerised, hydrolysed ethylene vinyl acetate; a polyester; a polycarbonate; a polymethacrylate; a polyglycol; polyethylene; polystyrene; polypropylene; polyvinyl chloride or a mixture thereof. 
     
     
         14 . The article of  claim 1 , wherein the component comprises a breakable capsule and the breakable capsule contains the second aerosol-modifying agent. 
     
     
         15 . The article according to of  claim 14 , wherein the pressure difference across the filter when the user inhales is in the range of 30-90 mmH 2 O, when the capsule is in an unbroken state. 
     
     
         16 . The article of  claim 14 , wherein the breakable capsule has a core-shell structure. 
     
     
         17 . The article of  claim 16 , wherein the core comprises at least about 25% w/w flavorant, based on the total weight of the core. 
     
     
         18 . The article of  claim 14 , wherein the breakable capsule includes a barrier material which retains the aerosol-modifying agent, and wherein the barrier material comprises one or more of a gelling agent, a bulking agent, a colouring coloring agent, a plasticizer, and a filler material. 
     
     
         19 . The article of  claim 14 , wherein the breakable capsule is substantially spherical and has a diameter in the range of about 0.4 mm to about 8.0 mm. 
     
     
         20 . The article of  claim 14 , wherein the breakable capsule weighs between about 5 mg and about 60 mg. 
     
     
         21 . A non-combustible aerosol provision system comprising a heater and an article of, the article comprising a filter and an aerosol-generating portion,
 wherein the aerosol-generating portion comprises an aerosol-generating material and an encapsulated first aerosol-modifying agent,   wherein the encapsulated first aerosol-modifying agent is released on heating to at least a threshold release temperature, and   wherein the filter comprises a component holding a second aerosol-modifying agent, wherein the second aerosol-modifying agent is selectively releasable from the component, and   wherein the heater is arranged to heat the aerosol-generating portion of the article in use to generate an aerosol.