PROCESS FOR THE PASSIVATION OF TINNED STAINLESS STEEL STRIP WITH A CHROME-FREE PASSIVATION FILM - Patent 1368515

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EP 1 368 515 A2

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(88)	Date of publication A3:
	25.09.2003

(43)	Date of publication:
	10.12.2003 Bulletin 2003/50

(21)	Application number: 01994948.6

(22)	Date of filing: 19.12.2001

(51)	International Patent Classification (IPC)⁷: C25D 9/08, C25D 9/10, C23C 22/34, C23C 22/40, C23C 22/46

(86)	International application number:
	PCT/IT0100/643

(87)	International publication number:
	WO 0205/0341 (27.06.2002 Gazette 2002/26)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

19.12.2000 IT RM20000679

(71)	Applicant: CENTRO SVILUPPO MATERIALI S.p.A.
	00129 Roma (IT)

(72)	Inventor:
	DE CRISTOFARO, Norma,Ctro Sviluppo Materiali SpA 00129 Roma (IT)

(74)	Representative: Leone, Mario
	Società Italiana Brevetti S.p.A.Piazza di Pietra 39 00186 Roma 00186 Roma (IT)

(54)	PROCESS FOR THE PASSIVATION OF TINNED STAINLESS STEEL STRIP WITH A CHROME-FREE PASSIVATION FILM