(19)

(11)

EP 2 721 130 A1

(12)

(43) Date of publication: 23.04.2014 Bulletin 2014/17 (21) Application number: 12732559.5 (22) Date of filing: 06.06.2012

(51) International Patent Classification (IPC):  C11B 1/06(2006.01) C11B 1/10(2006.01) (86) International application number: PCT/EP2012/060735 (87) International publication number: WO 2012/171843 (20.12.2012 Gazette 2012/51)

(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: 15.06.2011 EP 11425159 (71) Applicant: Pieralisi Maip Societa' Per Azioni 60035 Jesi (AN) (IT)	(72) Inventor: PIERALISI, Gennaro I-60035 Jesi (AN) (IT) (74) Representative: Baldi, Claudio  Viale Cavallotti, 13 60035 Jesi (AN) 60035 Jesi (AN) (IT)