EP 1897455 A1 20080312 - CIGARETTE FILTER CAPABLE OF REMOVING HARMFUL SUBSTANCE
Title (en)
CIGARETTE FILTER CAPABLE OF REMOVING HARMFUL SUBSTANCE
Title (de)
ZIGARETTENFILTER, MIT DEM SICH SCHÄDLICHE SUBSTANZEN ENTFERNEN LASSEN
Title (fr)
FILTRE DE CIGARETTE CAPABLE DE SUPPRIMER UNE SUBSTANCE NOCIVE
Publication
Application
Priority
JP 2005008163 W 20050428
Abstract (en)
[PROBLEMS] To provide a cigarette filter that does not impair the distinctive flavor of a cigarette and the air permeability of filter while smoking, and at the same time, can more effectively remove harmful substances such as a pyrene that is generated from the cigarette. [MEANS FOR SOLVING PROBLEMS] The cigarette filter comprising a filter fiber bundle body which cigarette smoke passes through; a fine powder with a high surface area ratio that are mixed and scattered in the filter fiber bundle body; and a double-stranded DNA molecule attached to the outer surface of the fine powder with a high surface area ratio, characterized in that harmful substances such as benzo[a]pyrene contained in the cigarette smoke can be removed by intercalation into the double-stranded DNA molecule.
IPC 8 full level
A24D 3/06 (2006.01)
CPC (source: EP US)
Citation (search report)
See references of WO 2006117862A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1897455 A1 20080312; CN 101166432 A 20080423; JP WO2006117862 A1 20081218; US 2009272392 A1 20091105; WO 2006117862 A1 20061109
DOCDB simple family (application)
EP 05736754 A 20050428; CN 200580049595 A 20050428; JP 2005008163 W 20050428; JP 2007514431 A 20050428; US 91921705 A 20050428