Immobilized diluents for smoking articles

摘要

Immobilized diluents in a smoking article are provided, wherein diluents can be immobilized through absorption and/or adsorption of the diluents into immobilizing materials, such as sorbents like silica gels. By immobilizing diluents, the diluents can be available for vaporization, while still being protected from migration and/or loss of the diluents in a smoking article.

主权项

1. A method of reducing tar generated from tobacco combustion, pyrolysis or distillation in tobacco smoke, comprising:
heating a tobacco-containing portion of a smoking article; and releasing diluents immobilized within porous immobilizing particles in the tobacco-containing portion of the smoking article by heating the diluents immobilized within the porous immobilizing particles, wherein the released diluent alters the composition of the total particulate matter (TPM) in the tobacco smoke, wherein the diluents immobilized within the porous immobilizing particles are sealed with a coating, and wherein the porous immobilizing particles comprise silica gels, molecular sieves, activated carbons, or combinations thereof.