Tobacco smoke filter for removing toxic compounds

US5746231A · kind A · utility

Assignee

• Craig Lesser · US

Inventors

• Craig Lesser · Los Angeles, US
• Reid W. von Borstel · Potomac, US

Key dates

• Filing date: May 15, 1996
• Grant date: May 5, 1998
• Expiry date: May 15, 2016

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A24D3/14
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

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.