EP 3545118 A1 20191002 - COMPOSITION AND METHOD FOR THE CHROMIUM-FREE PRETREATMENT OF ALUMINIUM SURFACES
Title (en)
COMPOSITION AND METHOD FOR THE CHROMIUM-FREE PRETREATMENT OF ALUMINIUM SURFACES
Title (de)
ZUSAMMENSETZUNG UND VERFAHREN ZUR CHROMFREIEN VORBEHANDLUNG VON ALUMINIUMOBERFLÄCHEN
Title (fr)
COMPOSITION ET PROCÉDÉ DE PRÉTRAITEMENT SANS CHROME DE SURFACES D'ALUMINIUM
Publication
Application
Priority
- DE 102016223170 A 20161123
- EP 2017077308 W 20171025
Abstract (en)
[origin: WO2018095684A1] The present invention relates to an aqueous chromium-free composition for pre-treating aluminium surfaces, which contains at least one water-soluble phosphorus compound, at least one water-soluble zirconium compound, at least one water-soluble titanium compound and at least one water-soluble molybdenum compound, wherein the content of phosphorus compound is in the range of 15 to 50 mg/l (calculated as phosphorus), the content of zirconium compound is in the range of 400 to 600 mg/l (calculated as metal), the content of titanium compound is in the range of 85 to 400 mg/l (calculated as metal), and the content of molybdenum compound is in the range of 40 to 150 mg/l (calculated as metal). The invention also relates to a corresponding method and to a correspondingly pretreated component or strip.
IPC 8 full level
C23C 22/44 (2006.01)
CPC (source: EP RU US)
C23C 22/361 (2013.01 - RU US); C23C 22/44 (2013.01 - EP RU US); C22C 21/00 (2013.01 - US)
Citation (search report)
See references of WO 2018095684A1
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)
WO 2018095684 A1 20180531; BR 112019010258 A2 20190903; CA 3041934 A1 20180531; CN 109983160 A 20190705; CN 109983160 B 20220531; EP 3545118 A1 20191002; EP 3545118 B1 20200819; ES 2832656 T3 20210610; PL 3545118 T3 20210208; RU 2019118432 A 20201224; RU 2019118432 A3 20210319; RU 2754069 C2 20210825; US 11686000 B2 20230627; US 2020063267 A1 20200227; ZA 201903869 B 20221221
DOCDB simple family (application)
EP 2017077308 W 20171025; BR 112019010258 A 20171025; CA 3041934 A 20171025; CN 201780071845 A 20171025; EP 17792018 A 20171025; ES 17792018 T 20171025; PL 17792018 T 20171025; RU 2019118432 A 20171025; US 201716463196 A 20171025; ZA 201903869 A 20190614