Smoking Article

Abstract

A smoking article can comprise a rod of smokeable material and a first sheet material comprising at least one diluent. The diluent is present in an amount effective to dilute emissions from the rod of smokeable material during combustion.

1 . A smoking article, comprising:
 a rod of smokeable material; and   a sheet material comprising at least one diluent and at least one adsorbent, wherein said at least one diluent is present in an amount effective to dilute emissions from the rod of smokeable material during combustion.   
     
     
         2 . The smoking article according to  claim 1 , wherein the at least one diluent is present in the sheet material in an amount of from about 5 to 80% by weight of the sheet material. 
     
     
         3 . The smoking article according to  claim 1 , wherein said at least one diluent is at least one aerosol forming agent selected from a group consisting of: polyhydric alcohols, glycerol, propylene glycol, triethylene glycol, esters, triethyl citrate, triacetin, high boiling point hydrocarbons, non-polyols, glycols, sorbitol, and lactic acid. 
     
     
         4 . The smoking article according to  claim 1 , wherein said at least one adsorbent is an integral component within the sheet material. 
     
     
         5 . The smoking article according to  claim 1 , wherein said sheet material further comprises at least one diluent stabilizing means. 
     
     
         6 . The smoking article according to  claim 5 , wherein said at least one diluent stabilizing means is an integral component within the sheet material. 
     
     
         7 . The smoking article according to  claim 5 , wherein said at least one diluent stabilizing means is selected from a group consisting of zeolite, sepiolite, clay, silica gel, activated alumina, minerals and resin. 
     
     
         8 . The smoking article according to  claim 5 , wherein the at least one diluent stabilizing means has a loading level less than 70% by weight of the sheet material. 
     
     
         9 . The smoking article according to  claim 1 , wherein at least one adsorbent is activated carbon. 
     
     
         10 . The smoking article according to  claim 9 , wherein the activated carbon is in granular, powder or particulate form and has a mean particle size of less than 250 μm. 
     
     
         11 . The smoking article according to  claim 9 , wherein the activated carbon has an activity level of 30-180% carbon tetrachloride. 
     
     
         12 . The smoking article according to  claim 1 , wherein the at least one adsorbent has a loading level less than 70% by weight of the sheet material. 
     
     
         13 . The smoking article according to  claim 1 , wherein the sheet material is wrapped around the circumference of the rod of smokeable material and extends along the entire length of the rod of smokeable material. 
     
     
         14 . A smoking article comprising:
 a rod of smokeable material;   a first sheet material comprising at least one diluent, wherein said at least one diluent is present in an amount effective to dilute emissions from the rod of smokeable material during combustion; and   a second sheet of material which does not contain diluent, wherein said second sheet material is wrapped around the circumference of the rod of smokeable material and extends along the entire length of the rod of smokeable material.   
     
     
         15 . The smoking article according to  claim 14 , wherein the first sheet material extends over a portion of the length of the rod of smokeable material. 
     
     
         16 . The smoking article according to  claim 14 , wherein said first sheet material extends over a plurality of separate portions of the length of the rod. 
     
     
         17 . The smoking article according to  claim 14 , wherein said second sheet material is located outside said first sheet material relative to the axis of the rod of smokeable material. 
     
     
         18 . The smoking article according to  claim 14 , wherein the first sheet material is positioned between said rod of smokeable material and said second sheet material. 
     
     
         19 . The smoking article according to  claim 14 , wherein the first sheet material is located inside the rod of smokeable material. 
     
     
         20 . The smoking article according to  claim 19 , wherein the first sheet material is rolled and located within the rod of smokeable material co-axially with the second sheet material. 
     
     
         21 . The smoking article according to  claim 14 , wherein at least one of said first and second sheet materials has a thickness of from 20 μm to 300 μm. 
     
     
         22 . The smoking article according to  claim 1 , wherein the at least one diluent is present in the sheet material in an amount of from about 5 to 70% by weight of the sheet material. 
     
     
         23 . The smoking article according to  claim 1 , wherein the at least one diluent is present in the sheet material in an amount of from about 20 to 50% by weight of the sheet material. 
     
     
         24 . The smoking article according to  claim 5 , wherein the at least one diluent stabilizing means has loading levels less than 50% by weight of the sheet material. 
     
     
         25 . The smoking article according to  claim 5 , wherein the at least one diluent stabilizing means has loading levels between 10 to 45% by weight of the sheet material. 
     
     
         26 . The smoking article according to  claim 9 , wherein the activated carbon is in granular, powder or particulate form and has a mean particle size of less than 100 μm. 
     
     
         27 . The smoking article according to  claim 9 , wherein the activated carbon is in granular, powder or particulate form and has a mean particle size of less than 50 μm. 
     
     
         28 . The smoking article according to  claim 9 , wherein the activated carbon is in granular, powder or particulate form and has a mean particle size of less than 20 μm. 
     
     
         29 . The smoking article according to  claim 9 , wherein the activated carbon has an activity level of 60-120% carbon tetrachloride. 
     
     
         30 . The smoking article according to  claim 1 , wherein the at least one adsorbent has a loading level less than 50% by weight of the sheet material. 
     
     
         31 . The smoking article according to  claim 1 , wherein the at least one adsorbent has a loading level between 10-45% by weight of the sheet material.