EP 0250806 A2 19880107 - Method and device for removing nitric oxide from cigarette smoke.
Title (en)
Method and device for removing nitric oxide from cigarette smoke.
Title (de)
Verfahren und Vorrichtung zur Entfernung des Stickstoffoxides vom Zigarettenrauch.
Title (fr)
Procédé et dispositif pour éliminer l'oxyde nitrique de la fumée de cigarette.
Publication
Application
Priority
US 88060486 A 19860630
Abstract (en)
Method method for making a chemically-treated filter element for cigarettes, to reduce the concentration of nitrogen oxide by-products in cigarette smoke, by applying a non-ionic solution or dispersion containing zinc oxide or zinc acetate to the substrate in the garniture feed, the non-ionic solution or dispersion also containing a polyoxyalkylene derivative of a sorbitan fatty acid ester, a monoester of a polyhydroxyalcohol, or a diester of a polyhydroxy alcohol, or containing a mixture of the said dispersants.
IPC 1-7
IPC 8 full level
A24D 3/02 (2006.01); A24D 3/08 (2006.01); A24D 3/14 (2006.01); A24D 3/16 (2006.01); B01D 53/56 (2006.01); B01D 53/81 (2006.01); B01J 20/02 (2006.01); B01J 20/26 (2006.01)
CPC (source: EP)
A24D 3/08 (2013.01); A24D 3/14 (2013.01); A24D 3/16 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0250806 A2 19880107; EP 0250806 A3 19880601; BR 8703293 A 19880315; CN 87104595 A 19880113; JP S6374476 A 19880404
DOCDB simple family (application)
EP 87106954 A 19870513; BR 8703293 A 19870629; CN 87104595 A 19870630; JP 16388987 A 19870630