(19)

(11)

EP 2 916 934 A1

(12)

(43) Date of publication: 16.09.2015 Bulletin 2015/38 (21) Application number: 13792299.3 (22) Date of filing: 08.11.2013

(51) International Patent Classification (IPC):  B01D 53/22(2006.01) B01D 69/10(2006.01) B01D 71/02(2006.01) B01D 67/00(2006.01) B01D 69/12(2006.01) C01B 13/02(2006.01) (86) International application number: PCT/EP2013/073413 (87) International publication number: WO 2014/072474 (15.05.2014 Gazette 2014/20)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 08.11.2012 US 201213671835 09.11.2012 US 201213672975 (71) Applicant: Saint-Gobain Centre De Recherches Et D'etudes Europeen 92400 Courbevoie (FR)	(72) Inventors: PETIGNY, Nathalie F-84740 Velleron (FR) SARANTOPOULOS, Christos F-13090 Aix-en-Provence (FR) (74) Representative: Lucas, Francois  SAINT-GOBAIN RECHERCHE Département Propriété Industrielle 39, Quai Lucien Lefranc 93300 Aubervilliers 93300 Aubervilliers (FR)