Control of Puff Profile

Abstract

The invention relates to heat not burn products comprising an encapsulated aerosol generating agent, the encapsulation having the effect of controlling the release of the agent during use of the heat not burn product. The encapsulation will control the tinting of the release of the aerosol generating agent during the use of the heat not burn product, to allow greater control of the puff yield. In the case of some aerosol generating agents, the encapsulation may also increase the stability of the agent and/or prevent its migration within the product.

1 . A heat not burn product comprising an encapsulated aerosol generation agent having a plurality of encapsulation materials and/or formed by a plurality of encapsulation processes such that the encapsulated aerosol generation agent is released during use to produce a predefined puff yield of total particulate matter based on the plurality of encapsulation materials and/or the plurality of encapsulation processes. 
     
     
         2 . The heat not burn product as claimed in  claim 1 , wherein the aerosol generation agent is encapsulated with at least two distinct barrier materials, the barrier materials having different melting points. 
     
     
         3 . The heat not burn product as claimed in  claim 1 , wherein the aerosol generation agent is encapsulated with different thicknesses of barrier material, the thickness of the barrier material determining when the aerosol generation agent is released during use. 
     
     
         4 . The heat not burn product as claimed in  claim 1 , wherein distribution of the encapsulated aerosol generation agent is configured to control timing of the release of the aerosol generation agent during use. 
     
     
         5 . The heat not burn product as claimed in  claim 1 , wherein the aerosol generation agent is a polyol. 
     
     
         6 . The heat not burn product as claimed in  claim 2 , wherein the at least two distinct barrier materials are at least one of a polysaccharide, a gelatin, a gum, and/or a gel. 
     
     
         7 . The heat not burn product as claimed in  claim 1 , wherein the aerosol generation agent is configured for release during use to provide a substantially constant delivery of total particulate matter per puff. 
     
     
         8 . The heat not burn product as claimed in  claim 1 , wherein the aerosol generation agent is configured for release during use to provide a gradually increasing delivery of total particulate matter per puff. 
     
     
         9 . Use of an encapsulated aerosol generation agent in a heat not burn product, wherein the agent is encapsulated using a plurality of encapsulation materials or a plurality of encapsulation techniques, in order to control release of the aerosol generation agent, so as to produce a predefined puff yield of total particulate matter. 
     
     
         10 . A method for controlling release of an aerosol generation agent, so as to produce a desired puff yield of total particulate matter, in a heat not burn product by including in said product an encapsulated aerosol generation agent, wherein the aerosol generation agent is encapsulated using a plurality of encapsulation materials or a plurality of encapsulation techniques. 
     
     
         11 . The heat not burn product as claimed in  claim 5 , wherein the polyol is at least one of sorbitol, glycerol, and/or a glycol. 
     
     
         12 . The heat not burn product as claimed in  claim 11 , wherein the glycol is at least one of propylene glycol and/or triethylene glycol. 
     
     
         13 . The heat not burn product as claimed in  claim 1 , wherein the aerosol generation agent is a non-polyol. 
     
     
         14 . The heat not burn product as claimed in  claim 13 , wherein the non-polyol is at least one of a monohydric alcohol, a high-boiling point hydrocarbon, an acid, an ester, and/or an aliphatic carboxylic acid ester. 
     
     
         15 . The heat not burn product as claimed in  claim 14 , wherein the acid is lactic acid. 
     
     
         16 . The heat not burn product as claimed in  claim 14 , wherein the ester is at least one of diacetin, triacetin, triethyl citrate and/or isopropyl myristate. 
     
     
         17 . The heat not burn product as claimed in  claim 14 , wherein the aliphatic carboxylic acid ester is at least one of methyl stearate, dimethyl dodecanedioate and/or dimethyl tetradecanedioate. 
     
     
         18 . The heat not burn product as claimed in  claim 6 , wherein the polysaccharide is at least one of alginate, dextran, maltodextrin, cyclodextrin and/or pectin. 
     
     
         19 . The heat not burn product as claimed in  claim 6 , wherein the cellulosic barrier material is at least one of methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, and/or cellulose ethers. 
     
     
         20 . The heat not burn product as claimed in  claim 6 , wherein the gum is at least one of gum Arabic, gum ghatti, gum tragacanth, Karaya, locust bean gum, acacia gum, guar gum, quince seed gum, and/or xanthan gum. 
     
     
         21 . The heat not burn product as claimed in  claim 6 , wherein the gel is at least one of agar, agarose, carrageenans, furoidan and/or furcellaran.