Smokeless article
AssigneeImperial Tobacco Limited
InventorsSteven Hall, Haydn Jones
Life of this patent
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Abstract
A smokeless article for oral consumption including a pouch, the pouch including a porous substrate enclosing a content, the content having a nicotinic compound, wherein the porous substrate has a continuous coatl8ing of a non-porous, saliva-stable material, and wherein the coating is frangible, such that in use the coating fractures on chewing. Also described is a method of manufacturing a smokeless articles for oral consumption the method including applying a coating material to a sheet of a porous substrate to provide a coated sheet of porous substrate, the coated sheet of porous substrate having a continuous coating of a non-porous, saliva-stable material; a forming step; and a sealing step, wherein the coating formed by the coating material is frangible.
Claims14
A smokeless article for oral consumption comprising a pouch, the pouch comprising a porous substrate enclosing a content which is tobacco-free, the content comprising a nicotinic compound, wherein the porous substrate has a coating of a non-porous, saliva-stable material, wherein the coating is located on at least one of the entire inner surface or entire outer surface of the porous substrate;
- and wherein the coating is frangible, such that in use the coating fractures on chewing;
- and wherein the saliva-stable material is a material that does not substantially dissolve or disintegrate as a result of exposure to saliva in an oral cavity of a user at physiological temperature.
A method of manufacturing a smokeless article for oral consumption comprising:
- (i) applying a coating material to a sheet of a porous substrate to provide a coated sheet of porous substrate, the coated sheet of porous substrate having a coating of a non-porous, saliva-stable material;
- (ii) forming the coated sheet of porous substrate around a content to provide a pouch such that the coated material is located on at least one of the entire inner surface or entire outer surface of the porous substrate, wherein the content is tobacco-free;
- and
- (iii) thermally or chemically sealing the pouch to enclose the contents;
- wherein the coating formed by the coating material is frangible, such that in use the coating fractures on chewing;
- wherein the coating is located on the at least one entire inner surface or entire outer surface of the porous substrate;
- and wherein the saliva-stable material is a material that does not substantially dissolve or disintegrate as a result of exposure to saliva in an oral cavity of a user at physiological temperature.
Dependencies are inferred from the claim text.