Tobacco smoke filter for removing toxic compounds

Details Tobacco smoke filter for removing toxic compounds Tobacco smoke filter for removing toxic compounds

A - Human Necessities

24

D

A24D 3/14 (2006.01) A24D 3/06 (2006.01) A24D 3/08 (2006.01)

Patent

CA 2254895

A tobacco smoke filter comprising a porous substrate having a humectant, such as sodium pyroglutamate, dispersed therein to absorb moisture from the tobacco smoke thereby wet-filtering the tobacco smoke. The tobacco smoke filter can also comprise a porous substrate having microcapsules dispersed therein. The microcapsules can comprise a humectant such as sodium pyroglutamate. The microcapsules further preferably comprise one or more of methylcellulose, chlorophyllin and at least one vegetable oil. The tobacco smoke filter can also comprise a porous substrate having dry water and a porphyrin dispersed therein. The tobacco smoke filter can also comprise a porous substrate having a copper-containing porphyrin dispersed therein.

La présente invention concerne un filtre à fumée de tabac comportant un humectant tel que le pyroglutamate de sodium dispersé dans un substrat poreux. Cet humectant sert à fixer l'humidité de la fumée du tabac, ce qui permet d'effectuer une filtration humide de la fumée de tabac. Le filtre à fumée de tabac peut également comporter des microcapsules dispersées dans un substrat poreux. Ces microcapsules peuvent comporter un humectant tel que le pyroglutamate de sodium. De préférence, ces microcapsules comportent l'une au moins des substances du groupe constitué de la méthylcellulose, de la chlorophylline et d'au moins une huile végétale. Le filtre à fumée de tabac peut également comporter de "l'eau sèche" et une porphyrine dispersées dans un substrat poreux. Ce filtre à fumée de tabac peut enfin comporter une porphyrine contenant du cuivre dispersée dans un substrat poreux.

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