| (19) |
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(11) |
EP 1 793 019 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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06.08.2008 Bulletin 2008/32 |
| (43) |
Date of publication A2: |
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06.06.2007 Bulletin 2007/23 |
| (22) |
Date of filing: 03.10.2006 |
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| (51) |
International Patent Classification (IPC):
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| (84) |
Designated Contracting States: |
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AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE
SI SK TR |
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Designated Extension States: |
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AL BA HR MK RS |
| (30) |
Priority: |
29.11.2005 IT MI20052278
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| (71) |
Applicant: Italfinish S.p.A. |
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24050 Grassobbio BG (IT) |
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| (72) |
Inventors: |
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- Pozzoli, A. Silvio
24050 Grassobbio (IT)
- Strazzi, Enzo
24050 Grassobbio (IT)
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| (74) |
Representative: Trupiano, Federica et al |
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Marietti, Gislon e Trupiano S.r.l.
Via Larga, 16
20122 Milano
20122 Milano (IT) |
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| |
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| (54) |
Multivalent electrolytic process for the surface treatment of non ferrous metallic
material |
(57) A process for the electrolytic treatment of non-ferrous metal materials, such as
for example magnesium, aluminium, titanium, vanadium and alloys thereof, particularly
a process for the production of a surface coating which has both an aesthetic and
a protective function.
Said process comprises at least one main treatment stage or anodic stage carried out
in a tank or cell, using an alkaline solution which allows the simultaneous treatment
of metal materials, even different metals, and/or materials made from alloys and/or
combinations and/or other kind of various metals coupled together.
An object of the present invention is also products made from non-ferrous metal materials,
provided with surface coatings obtained according to the above process.