The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 2013
Filed:
May. 27, 2009
Alain Pauly, Clermont-Ferrand, FR;
Marc Dubois, Clermont-Ferrand, FR;
Katia Guerin, Pont du Chateau, FR;
André Hamwi, Clermont-Ferrand, FR;
Jérôme Brunet, Riom, FR;
Christelle Varenne, Chamalieres, FR;
Bernard Lauron, Beaumont, FR;
Alain Pauly, Clermont-Ferrand, FR;
Marc Dubois, Clermont-Ferrand, FR;
Katia Guerin, Pont du Chateau, FR;
André Hamwi, Clermont-Ferrand, FR;
Jérôme Brunet, Riom, FR;
Christelle Varenne, Chamalieres, FR;
Bernard Lauron, Beaumont, FR;
Centre National de la Recherche Scientifique, Paris, FR;
Universite Blaise Pascal—Clermont—Ferrand II, Clermont-Ferrand Cedex, FR;
Abstract
The invention relates to the use of carbon nanomaterials as a filtration material pervious to nitrogen dioxide and impervious to ozone. The invention also relates to the use of carbon nanomaterials having a specific surface, measured by the BET method, of 15 to 40 m/g inclusive and a form factor, equal to the ratio (highest dimension/lowest dimension) of the nanomaterial, of 5 to 250 inclusive, as material for filtering a gas mixture containing nitrogen dioxide and ozone, being pervious to the nitrogen dioxide and impervious to the ozone. The invention can be used in the field of air pollution.