EP 1678344 A1 20060712 - ESSENTIALLY CHROMIUM-FREE METHOD FOR PASSIVATING METALLIC SURFACES CONSISTING OF ZN, ZN ALLOYS, AL OR AL ALLOYS
Title (en)
ESSENTIALLY CHROMIUM-FREE METHOD FOR PASSIVATING METALLIC SURFACES CONSISTING OF ZN, ZN ALLOYS, AL OR AL ALLOYS
Title (de)
IM WESENTLICHEN CHROM-FREIES VERFAHREN ZUM PASSIVIEREN VON METALLISCHEN OBERFLÄCHEN AUS ZN, ZN-LEGIERUNGEN, AL ODER AL-LEGIERUNGEN
Title (fr)
PROCEDE ESSENTIELLEMENT EXEMPT DE CHROME DESTINE A LA PASSIVATION DE SURFACES METALLIQUES EN ZN, ALLIAGES DE ZN, AL OU ALLIAGES D'AL
Publication
Application
Priority
- EP 2004011641 W 20041015
- DE 10349728 A 20031023
Abstract (en)
[origin: WO2005042801A1] The invention relates to an essentially chromium-free method for passivating metallic surfaces consisting of Zn, Zn alloys, Al or Al alloys, by treating the surface with an acid, aqueous preparation containing at least one essentially non-crosslinked, water-soluble polymer or copolymer comprising at least 50 wt. % of (meth)acrylic acid units, and further treatment of the surface by means of at least one water-soluble crosslinking agent comprising at least two crosslinking groups selected from the azirane, oxirane or thiirane groups. The invention also relates to passivation layers that can be obtained by means of the cited method, and to a preparation suitable for said method.
IPC 1-7
C23C 22/53; C23C 22/56; C23C 22/08; C09D 5/08; B05D 7/14; C23C 22/78; C23C 22/83
IPC 8 full level
C23C 22/08 (2006.01); C23C 22/53 (2006.01); C23C 22/56 (2006.01); C23C 22/78 (2006.01); C23C 22/83 (2006.01); B05D 7/16 (2006.01)
CPC (source: EP KR US)
B05D 7/16 (2013.01 - KR); C23C 22/05 (2013.01 - KR); C23C 22/08 (2013.01 - EP KR US); C23C 22/53 (2013.01 - EP KR US); C23C 22/56 (2013.01 - EP US); C23C 22/78 (2013.01 - EP US); C23C 22/83 (2013.01 - EP US); B05D 7/16 (2013.01 - EP US); Y10T 428/12556 (2015.01 - EP US); Y10T 428/26 (2015.01 - EP US); Y10T 428/265 (2015.01 - EP US); Y10T 428/31678 (2015.04 - EP US); Y10T 428/31692 (2015.04 - EP US)
Citation (search report)
See references of WO 2005042801A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005042801 A1 20050512; AT E463592 T1 20100415; BR PI0415542 A 20061226; CA 2542090 A1 20050512; CN 100529181 C 20090819; CN 1871374 A 20061129; DE 10349728 A1 20050525; DE 502004011004 D1 20100520; EP 1678344 A1 20060712; EP 1678344 B1 20100407; ES 2342940 T3 20100719; JP 2007510058 A 20070419; KR 20070001879 A 20070104; MX PA06003938 A 20060627; US 2007082193 A1 20070412; US 8241745 B2 20120814
DOCDB simple family (application)
EP 2004011641 W 20041015; AT 04790483 T 20041015; BR PI0415542 A 20041015; CA 2542090 A 20041015; CN 200480031392 A 20041015; DE 10349728 A 20031023; DE 502004011004 T 20041015; EP 04790483 A 20041015; ES 04790483 T 20041015; JP 2006536013 A 20041015; KR 20067009832 A 20060519; MX PA06003938 A 20041015; US 59549404 A 20041015