(19)

(11)

EP 2 544 820 A1

(12)

(43) Date of publication: 16.01.2013 Bulletin 2013/03 (21) Application number: 11706587.0 (22) Date of filing: 03.03.2011

(51) International Patent Classification (IPC):  B01L 3/00(2006.01) A61J 1/05(2006.01) (86) International application number: PCT/EP2011/053181 (87) International publication number: WO 2011/110469 (15.09.2011 Gazette 2011/37)

(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 (30) Priority: 11.03.2010 EP 10425062 (71) Applicant: LP Italiana S.p.A. 20157 Milano (IT)	(72) Inventor: LEOPARDI, Francesco I-20149 Milano (IT) (74) Representative: Colombo, Stefano Paolo et al MARCHI & PARTNERS S.r.l. Via G.B. Pirelli, 19 20124 Milano 20124 Milano (IT)