EP 1856991 A1 20071121 - CIGARETTE FILTER MATERIAL AND CIGARETTE FILTER
Title (en)
CIGARETTE FILTER MATERIAL AND CIGARETTE FILTER
Title (de)
ZIGARETTENFILTERMATERIAL UND ZIGARETTENFILTER
Title (fr)
MATERIAU POUR FILTRE A CIGARETTE ET FILTRE A CIGARETTE
Publication
Application
Priority
- JP 2006301251 W 20060126
- JP 2005027011 A 20050202
Abstract (en)
A cigarette filter material useful for selectively and efficiently reducing formaldehyde while maintaining a palatable component such as nicotine or tar is provided. A cigarette filter material is obtained by adhesively treating a substrate (such as a cellulose acetate fiber) with a dispersion comprising a particulate polysaccharide having an amino group (e.g., chitosan) and a medium. The medium may be a polar solvent (e.g., water, and an alcohol), and a plasticizer for the substrate. A cigarette filter comprising such cigarette filter material can efficiently and selectively reduce formaldehyde. For example, the cigarette filter ensures a retention of formaldehyde of not more than 65% while maintaining retentions of nicotine and tar of not less than 75%, respectively.
IPC 8 full level
A24D 3/14 (2006.01); A24D 1/04 (2006.01); A24D 3/02 (2006.01)
CPC (source: EP US)
A24D 3/14 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 1856991 A1 20071121; EP 1856991 A4 20130123; EP 1856991 B1 20141231; JP 4937104 B2 20120523; JP WO2006082748 A1 20080626; US 2008087290 A1 20080417; WO 2006082748 A1 20060810
DOCDB simple family (application)
EP 06712433 A 20060126; JP 2006301251 W 20060126; JP 2007501542 A 20060126; US 79599906 A 20060126