Cigarette filter containing a humectant

US5501238A · kind A · utility

Inventors

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

Key dates

• Filing date: Dec 23, 1994
• Grant date: Mar 26, 1996
• Expiry date: Dec 23, 2014

Classification

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

Abstract

A cigarette filter has a humectant, preferably sodium pyroglutamate, and optionally a surfactant. The humectant absorbs moisture from the tobacco smoke for wet-filtration of the tobacco smoke.