EP 2177647 A1 20100421 - Method of forming multicolor aluminium alloy
Title (en)
Method of forming multicolor aluminium alloy
Title (de)
Verfahren zum Bilden einer mehrfarbigen Aluminiumlegierung
Title (fr)
Procédé de formation d'alliage en aluminium multi-couleur
Publication
Application
Priority
TW 97140159 A 20081020
Abstract (en)
A method for forming multicolor aluminum alloy part has steps of preparing, surface treating, forming, processing and reprocessing. Preparing comprises providing an aluminum alloy substrate and cleaning with water. Surface treating comprises disposing the substrate in a first electrolytic solution to form a base oxide layer by anodizing. Forming comprises applying a membrane of transparent, acid-proof, insulating plastic on the substrate. Processing has locally removing an area of the membrane and corresponding oxide layer from the substrate and cleaning. Reprocessing has disposing the clean substrate in a subsequent electrolytic solution to form a subsequent oxide layer by anodizing on areas of the substrate exposed by local removal of an area of the membrane.
IPC 8 full level
C25D 11/04 (2006.01); C25D 11/12 (2006.01); C25D 11/14 (2006.01)
CPC (source: EP US)
C25D 11/022 (2013.01 - EP US); C25D 11/04 (2013.01 - EP); C25D 11/12 (2013.01 - EP); C25D 11/14 (2013.01 - EP)
Citation (search report)
- [A] JP S6075599 A 19850427 - NIPPON DENSO CO
- [A] JP S5867893 A 19830422 - TATEYAMA ALUMINUM KOGYO KK
- [A] US 2005109623 A1 20050526 - LEE CHOON W [US]
- [A] JP S58110694 A 19830701 - KATSUSHIKA PRESS KOGYOSHO KK
- [A] RU 2072000 C1 19970120 - INST KHIM DALNEVOSTOCHNOGO OTD [RU]
- [A] JP S6067691 A 19850418 - SUWA SEIKOSHA KK
Designated contracting state (EPC)
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 SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
EP 2177647 A1 20100421; EP 2177647 B1 20110323; AT E503042 T1 20110415; DE 602009000954 D1 20110505; TW 201016891 A 20100501; TW I338056 B 20110301
DOCDB simple family (application)
EP 09168633 A 20090825; AT 09168633 T 20090825; DE 602009000954 T 20090825; TW 97140159 A 20081020