(19)

(11)

EP 2 414 062 A1

(12)

(43) Date of publication: 08.02.2012 Bulletin 2012/06 (21) Application number: 09842734.7 (22) Date of filing: 15.07.2009

(51) International Patent Classification (IPC):  B01D 35/04(2006.01) (86) International application number: PCT/KR2009/003896 (87) International publication number: WO 2010/114197 (07.10.2010 Gazette 2010/40)

(84) Designated Contracting States: 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 SE SI SK SM TR (30) Priority: 03.04.2009 KR 20090029112 (71) Applicant: LG Electronics Inc. Seoul 150-721 (KR)	(72) Inventors: JEONG, Kyung-Han Seoul 153-023 (KR) SUH, Kwang-Ha Seoul 153-023 (KR) (74) Representative: Cabinet Plasseraud  52, rue de la Victoire 75440 Paris Cedex 09 75440 Paris Cedex 09 (FR)