Patent ID: 8356606

Claim:
A method for preparing particles of encapsulated micronized finely-ground tobacco suitable for placement in an oral pouch for the delivery of tobacco flavor, comprising: forming a colloidal dispersion of particles of negatively charged micronized finely ground tobacco in a liquid dispersing medium; combining the colloidal dispersion and a cationic first polymeric coating material in a liquid medium, wherein the first polymeric coating material adsorbs onto at least a portion of a surface of the tobacco particles to form a first layer, and mixing a second polymeric coating material with the liquid medium, wherein the second polymeric coating material adsorbs onto at least a portion of a surface of the first layer to form a second layer, thereby forming the coated tobacco particles and a depleted liquid medium, wherein the resulting encapsulated particles of micronized finely ground tobacco when present in a pouch within the oral cavity are capable of the diffusion of tobacco flavor from the tobacco contained therein upon the application of pressure by the tongue or teeth.