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EP 3 221 491 A1

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(43) Date of publication: 27.09.2017 Bulletin 2017/39 (21) Application number: 15795206.0 (22) Date of filing: 19.11.2015

(51) International Patent Classification (IPC):  C23C 18/16(2006.01) C23C 18/30(2006.01) C23C 18/20(2006.01) (86) International application number: PCT/EP2015/077077 (87) International publication number: WO 2016/079230 (26.05.2016 Gazette 2016/21)

(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 Designated Validation States: MA MD (30) Priority: 20.11.2014 EP 14193990 (71) Applicant: Solvay Specialty Polymers Italy S.p.A. 20021 Bollate (MI) (IT)

(72) Inventors: COJOCARU, Paula I-20025 Legnano (MI) (IT) TRIULZI, Francesco Maria I-20024 Garbagnate Milanese (MI) (IT) APOSTOLO, Marco I-20030 Senago (MI) (IT) ORIANI, Andrea Vittorio I-20091 Bresso (MI) (IT) SPREAFICO, Marco Alberto I-20017 Rho (MI) (IT) (74) Representative: Benvenuti, Federica  Solvay S.A. Département de la Propriété Intellectuelle Rue de Ransbeek, 310 1120 Bruxelles 1120 Bruxelles (BE)