Smoking article comprising ultrafine particles

Abstract

The present invention provides smoking articles comprising ultrafine particles. In an embodiment, a combustible material component of a smoking article may comprise ultrafine particles. In other embodiments, ultrafine particles are incorporated into a smoking article in proximity to a combustible material component. The present invention also provides methods for altering smoke chemistry.

What is claimed is:  
     
         1 . A smoking article comprising at least one carbonaceous component in intimate contact with ultrafine particles.  
     
     
         2 . The smoking article of  claim 1  wherein a fuel source of the smoking article comprises the carbonaceous component.  
     
     
         3 . The smoking article of  claim 1  wherein the carbonaceous component comprises ultrafine particles.  
     
     
         4 . The smoking article of  claim 1  wherein the carbonaceous component comprises ultrafine particles.  
     
     
         5 . The smoking article of  claim 1  wherein a filter of the smoking article comprises the carbonaceous component.  
     
     
         6 . The smoking article of  claim 1  wherein the carbonaceous component is intended to be burned during use of the smoking article.  
     
     
         7 . The smoking article of  claim 6  wherein the carbonaceous component comprises processed tobacco.  
     
     
         8 . The smoking article of  claim 1  wherein the carbonaceous component comprises a disc structure.  
     
     
         9 . A smoking article including a combustible material component and aerosol generating means circumscribed by a wrapping material wherein the combustible material component comprises a carbonaceous material and ultrafine particles.  
     
     
         10 . A method for reducing the amount of carbon monoxide in the mainstream smoke of a smoking article comprising a carbonaceous combustible material and aerosol generating means, the method comprising: incorporating ultrafine particles in the smoking article in a position that provides contact with the mainstream smoke.