EP 2718479 B1 20180314 - METHOD OF PRODUCING AN ALUMINUM OR ALUMINUM ALLOY STRIP WITH A HEAT-SEAL LACQUER ON A FIRST SURFACE AND AN EPOXIDE BASED STOVE LACQUER ON THE SECOND SURFACE PREVIOUSLY COATED WITH A CHROMIUM-FREE CONVERSION COATING
Title (en)
METHOD OF PRODUCING AN ALUMINUM OR ALUMINUM ALLOY STRIP WITH A HEAT-SEAL LACQUER ON A FIRST SURFACE AND AN EPOXIDE BASED STOVE LACQUER ON THE SECOND SURFACE PREVIOUSLY COATED WITH A CHROMIUM-FREE CONVERSION COATING
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES ALUMINIUM- ODER ALUMINIUMLEGIERUNGSSTREIFENS MIT EINER WÄRMEVERSIEGELUNGSLACKIERUNG AUF EINER ERSTEN OBERFLÄCHE UND EINER EPOXIDBASIERTEN EINBRENNLACKIERUNG AUF DER ZWEITEN, ZUVOR MIT EINER CHROMFREIEN KONVERSIONSBESCHICHTUNG BESCHICHTETEN OBERFLÄCHE
Title (fr)
PROCÉDÉ DE PRODUCTION D'UNE BANDE D'ALUMINIUM OU D'ALLIAGE D'ALUMINIUM DOTÉE D'UNE LAQUE DE THERMOSCELLAGE SUR UNE PREMIÈRE SURFACE ET D'UNE LAQUE CUITE AU FOUR À BASE D'ÉPOXYDE SUR LA SECONDE SURFACE PRÉALABLEMENT REVÊTUE D'UNE COUCHE DE CONVERSION EXEMPTE DE CHROME
Publication
Application
Priority
- EP 11004742 A 20110610
- EP 2012002324 W 20120601
- EP 12725321 A 20120601
Abstract (en)
[origin: EP2532769A1] In a method of producing an aluminium or aluminium alloy strip with a heat-seal lacquer on a first surface and an epoxide based stove lacquer on the second surface, a chromium-free conversion coating is produced on the first and second surface of the aluminium or aluminium alloy strip in a continuous production line before applying the hot seal lacquer and the stove lacquer, the chromium-free conversion coating is produced by (A) a no-rinse process by treatment with a solution of silanes in a polar organic solvent, or a no-rinse process by treatment with an aqueous solution of 5 to 10 wt.-% hexafluorotitanic acid (H 2 TiF 6 ) and 2.5 to 5 wt.-% hexafluorozirconic acid (H 2 ZrF 6 ), or (B) a rinse process by treatment with an aqueous solution of < 1 wt.-% diammonium dimolybdate ((NH 4 ) 2 Mo 2 O 7 ) and 5 to 10 wt.-% hexafluorozirconic acid (H 2 ZrF 6 ).
IPC 8 full level
C23C 22/02 (2006.01); B05D 7/14 (2006.01); B65D 77/20 (2006.01); B65D 85/804 (2006.01); C09D 5/08 (2006.01); C23C 22/34 (2006.01); C23C 22/44 (2006.01); C23C 22/73 (2006.01); C23C 22/74 (2006.01); C23C 22/76 (2006.01); C23C 22/83 (2006.01)
CPC (source: EP)
C23C 22/02 (2013.01); C23C 22/34 (2013.01); C23C 22/44 (2013.01); C23C 22/73 (2013.01); C23C 22/74 (2013.01); C23C 22/76 (2013.01); C23C 22/83 (2013.01)
Designated contracting state (EPC)
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
DOCDB simple family (publication)
EP 2532769 A1 20121212; EP 2718479 A1 20140416; EP 2718479 B1 20180314; ES 2668270 T3 20180517; HR P20180845 T1 20180907; PL 2718479 T3 20181031; WO 2012167889 A1 20121213
DOCDB simple family (application)
EP 11004742 A 20110610; EP 12725321 A 20120601; EP 2012002324 W 20120601; ES 12725321 T 20120601; HR P20180845 T 20180528; PL 12725321 T 20120601