Regenerated cellulose substrate for aerosol delivery device

Abstract

The present disclosure provides an aerosol generating component containing a substrate impregnated with one or more aerosol forming materials, the substrate including a cellulosic material substantially free of sulfur compounds, and further including one or more of a tobacco pulp, an aqueous tobacco extract, a filler, and a binder. Further provided is an aerosol delivery device including the aerosol generating component. Such devices utilize electrically generated heat or combustible ignition sources to heat the aerosol forming materials, providing an inhalable substance in the form of an aerosol.

What is claimed is: 
     
         1 . An aerosol generating component comprising a substrate carrying one or more aerosol forming materials and an active ingredient, the substrate comprising a cellulosic material substantially free of sulfur compounds, and further comprising one or more of a tobacco pulp, an aqueous tobacco extract, a filler, and a binder. 
     
     
         2 . The aerosol generating component of  claim 1 , wherein the cellulosic material is a cellulosic pulp or regenerated cellulose comprising at least about 90% cellulose by weight. 
     
     
         3 . The aerosol generating component of  claim 2 , wherein the cellulosic pulp is derived from flax, cotton linters, kenaf, hibiscus, hemp, tobacco, or a combination thereof. 
     
     
         4 . The aerosol generating component of  claim 1 , wherein the cellulosic material is a cellulose ether. 
     
     
         5 . The aerosol generating component of  claim 4 , wherein the cellulose ether is selected from the group consisting of methylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, hydroxyethyl cellulose, carboxymethylcellulose, and combinations thereof. 
     
     
         6 . The aerosol generating component of  claim 1 , wherein the cellulosic material contains less than about 350 ppm of sulfur compounds, measured as elemental sulfur. 
     
     
         7 . The aerosol generating component of  claim 1 , wherein the cellulosic material contains from about 100 ppm to about 350 ppm of sulfur compounds, measured as elemental sulfur. 
     
     
         8 . The aerosol generating component of  claim 1 , wherein the substrate is substantially free of wood pulp. 
     
     
         9 . The aerosol generating component of  claim 1 , wherein the binder is selected from the group consisting of alginates, starches, gums, dextrans, carrageenan, povidone, pullulan, zein, or combinations thereof. 
     
     
         10 . The aerosol generating component of  claim 1 , wherein the filler is selected from the group consisting of maltodextrin, dextrose, calcium carbonate, calcium phosphate, lactose, sugar alcohols, microcrystalline cellulose, and combinations thereof. 
     
     
         11 . The aerosol generating component of  claim 1 , wherein the one or more aerosol forming materials are selected from the group consisting of water, polyhydric alcohols, polysorbates, sorbitan esters, fatty acids, fatty acid esters, waxes, cannabinoids, terpenes, sugar alcohols, and combinations thereof. 
     
     
         12 . The aerosol generating component of  claim 1 , wherein the one or more aerosol forming materials are polyhydric alcohols. 
     
     
         13 . The aerosol generating component of  claim 12 , wherein the polyhydric alcohols are selected from the group consisting of glycerol, propylene glycol, 1,3-propanediol, diethylene glycol, triethylene glycol, and combinations thereof. 
     
     
         14 . The aerosol generating component of  claim 1 , wherein the substrate further carries a flavorant. 
     
     
         15 . The aerosol generating component of  claim 1 , wherein the active ingredient comprises a botanical ingredient, stimulant, cannabinoid, cannabimimetic, terpene, or combination thereof. 
     
     
         16 . The aerosol generating component of  claim 1 , wherein the substrate is impregnated with the one or more aerosol forming materials at a loading of from about 15 to about 55% by weight, based on a total weight of the impregnated substrate. 
     
     
         17 . The aerosol generating component of  claim 1 , wherein the substrate is in particulate form, shredded form, film form, paper process sheet form, cast sheet form, bead form, granular rod form, or extrudate form. 
     
     
         18 . The aerosol generating component of  claim 1 , wherein the substrate is formed into a substantially cylindrical shape. 
     
     
         19 . An aerosol delivery device, comprising:
 the aerosol generating component of  claim 1 ;   a heat source configured to heat the substrate carrying the one or more aerosol forming materials to form an aerosol; and   an aerosol pathway extending from the aerosol generating component to a mouth-end of the aerosol delivery device.   
     
     
         20 . The aerosol delivery device of  claim 19 , wherein the heat source comprises either an electrically powered heating element or a combustible ignition source. 
     
     
         21 . The aerosol delivery device of  claim 19 , wherein the heat source is a combustible ignition source comprising a carbon-based material. 
     
     
         22 . The aerosol delivery device of  claim 19 , wherein the heat source is an electrically-powered heating element. 
     
     
         23 . The aerosol delivery device of  claim 22 , further comprising a power source electronically connected to the heating element. 
     
     
         24 . The aerosol delivery device of  claim 23 , further comprising a controller configured to control the power transmitted by the power source to the heating element.