Cigarette filter containing microcapsules and sodium pyroglutamate

US5839447A · kind A · utility

Inventors

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

Key dates

• Filing date: Oct 31, 1996
• Grant date: Nov 24, 1998
• Expiry date: Oct 31, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J13/04
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

A tobacco smoke filter with 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. Also, a tobacco smoke filter with a porous substrate having microcapsules dispersed therein. The microcapsules have a humectant such as sodium pyroglutamate. The microcapsules further preferably have one or more of methylcellulose, chlorophyllin and at least one vegetable oil.