EP 3851554 A1 20210721 - METHOD FOR ETCHING OR DISSOLVING A HARD MATERIAL COATING
Title (en)
METHOD FOR ETCHING OR DISSOLVING A HARD MATERIAL COATING
Title (de)
VERFAHREN ZUM ÄTZEN ODER AUFLÖSEN EINER HARTSTOFFBESCHICHTUNG
Title (fr)
PROCÉDÉ DE GRAVURE OU DE DISSOLUTION D'UN REVÊTEMENT DE MATIÈRE DURE
Publication
Application
Priority
EP 20151629 A 20200114
Abstract (en)
[origin: WO2021144375A1] The invention relates to a method for etching or dissolving a hard material coating on a base body, characterised in that the hard material coating is treated in an aqueous solution. The aqueous solution comprises ferrate and a strong base.
Abstract (de)
Verfahren zum Ätzen oder Auflösen einer Hartstoffbeschichtung von einem Grundkörper, dadurch gekennzeichnet, dass die Hartstoffbeschichtung in einer wässrigen Lösung behandelt wird, wobei die wässrige Lösung Ferrat und eine starke Base umfasst.
IPC 8 full level
C23C 22/64 (2006.01); C23C 22/66 (2006.01); C23F 1/38 (2006.01); C25F 3/08 (2006.01); C25B 1/28 (2021.01); C25D 5/02 (2006.01); C25D 7/00 (2006.01)
CPC (source: EP)
C23F 1/38 (2013.01); C23G 1/14 (2013.01); C23G 1/19 (2013.01); C25B 1/00 (2013.01); C25D 5/02 (2013.01); C25D 7/00 (2013.01)
Citation (applicant)
D. BONACCHI ET AL., SURFACE AND COATINGS TECHNOLOGY, vol. 165, 2003, pages 35 - 39
Citation (search report)
- [XI] DE 69915372 T2 20050519 - LYNNTECH INC [US]
- [X] JP S5180631 A 19760714 - TOKYO SHIBAURA ELECTRIC CO
- [X] DE 2534213 A1 19770217 - LICENTIA GMBH
- [X] US 2728695 A 19551227 - RUFFORD HARRISON JOHN
- [XI] DE 850368 C 19520925 - WENZEL LETFUSS
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 20151629 A 20200114; EP 2021050716 W 20210114