(19)

(11)

EP 2 820 160 A1

(12)

(43) Date of publication: 07.01.2015 Bulletin 2015/02 (21) Application number: 12707737.8 (22) Date of filing: 29.02.2012

(51) International Patent Classification (IPC):  C14C 11/00(2006.01) C14B 1/46(2006.01) C14C 13/00(2006.01) D06P 3/32(2006.01) (86) International application number: PCT/EP2012/053480 (87) International publication number: WO 2013/127455 (06.09.2013 Gazette 2013/36)

(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 (71) Applicant: Ampuero Allen, Luis Alberto 75016 Paris (FR)	(72) Inventor: AMPUERO, Luis F-94270 Kremlin-Bicêtre (FR)