EP 0167751 B1 19900718 - PROCESS FOR TREATING ALUMINIUM SURFACES
Title (en)
PROCESS FOR TREATING ALUMINIUM SURFACES
Publication
Application
Priority
US 61910584 A 19840611
Abstract (en)
[origin: US4502925A] A method for treating an aluminum sheet useful for lithography by etching said sheet in an aqueous bath containing up to about 25% of nitric and/or hydrochloric acids and from about 1% to about 25% of an inorganic fluorine containing acid or salt thereof. Said etching step is sequentially followed by electrochemical graining and anodizing process steps.
IPC 1-7
IPC 8 full level
B41N 3/00 (2006.01); B41N 3/03 (2006.01); C23F 1/20 (2006.01); C25D 11/04 (2006.01); C25D 11/08 (2006.01); C25D 11/16 (2006.01); C25F 3/04 (2006.01)
CPC (source: EP US)
B41N 3/034 (2013.01 - EP US); C23F 1/20 (2013.01 - EP US); C25D 11/04 (2013.01 - EP US); C25D 11/06 (2013.01 - EP US); C25F 3/04 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB LI NL SE
DOCDB simple family (publication)
US 4502925 A 19850305; AU 4280685 A 19851219; AU 584899 B2 19890608; BR 8502751 A 19860212; CA 1235380 A 19880419; DE 3578698 D1 19900823; EP 0167751 A1 19860115; EP 0167751 B1 19900718; JP S6110491 A 19860117
DOCDB simple family (application)
US 61910584 A 19840611; AU 4280685 A 19850523; BR 8502751 A 19850610; CA 482400 A 19850527; DE 3578698 T 19850513; EP 85105850 A 19850513; JP 12526585 A 19850611