Global Patent Index - EP 1893791 A2

EP 1893791 A2 20080305 - ELECTRODEPOSITION MATERIAL, PROCESS FOR PROVIDING A CORROSION-PROTECTIVE LAYER OF TiO2 ON AN ELECTRICALLY CONDUCTIVE SUBSTRATE AND METAL SUBSTRATE COATED WITH A LAYER OF TiO2

Title (en)

ELECTRODEPOSITION MATERIAL, PROCESS FOR PROVIDING A CORROSION-PROTECTIVE LAYER OF TiO2 ON AN ELECTRICALLY CONDUCTIVE SUBSTRATE AND METAL SUBSTRATE COATED WITH A LAYER OF TiO2

Title (de)

MATERIAL ZUR ELEKTROABSCHEIDUNG, VERFAHREN ZUR BEREITSTELLUNG EINER KORROSIONSSCHÜTZENDEN SCHICHT VON TIO2 AUF EINEM ELEKTRISCH LEITENDEN SUBSTRAT UND MIT EINER TIO2-SCHICHT BESCHICHTETES METALLSUBSTRAT

Title (fr)

MATERIAU D'ELECTRODEPOSITION, PROCEDE PERMETTANT DE FOURNIR UNE COUCHE ANTICORROSION DE TIO2 A UN SUBSTRAT CONDUCTEUR ET SUBSTRAT METALLIQUE REVETU DE COUCHE DE TIO2

Publication

EP 1893791 A2 20080305 (EN)

Application

EP 06754399 A 20060616

Priority

  • EP 2006005790 W 20060616
  • EP 05013424 A 20050622
  • EP 06754399 A 20060616

Abstract (en)

[origin: WO2006136333A2] The present invention relates to electrodeposition material for the electrochemical deposition of a corrosion-protective layer of TiO<SUB>2</SUB> on an electrically conductive substrate comprising a titanium compound, a complexing agent, an accelerator, water and optionally organic solvents, buffering agents and one or more additives, characterized in that the titanium compound is titanyl sulfate and/or titanyl oxalate, the complexing agent is selected from the group consisting of citric acid, citrates, tatric acid, tartrates, lactid acid, lactates, gluconic acid, gluconates, polyhydroxy- polycarbonic acids, ethylenediaminetetraacetate, methylglycinediacetate, iminodisuccinate, nitrilotriacetic acid and nitrilotriacetate, triethanolamine, phosphonic acid and phosphonates, poly-aspartic acid and polyaspartates, polyacrylic acid and polyacrylates and the accelerator is selected from the group consisting of H<SUB>2</SUB>O<SUB>2</SUB> and organic peroxides. The invention further relates to a process for providing a corrosion-protective layer of TiO<SUB>2</SUB> on an electrically conductive substrate and to a metal substrate coated with a layer of TiO<SUB>2</SUB>.

IPC 8 full level

C25D 9/08 (2006.01)

CPC (source: EP US)

C25D 9/08 (2013.01 - EP US)

Citation (search report)

See references of WO 2006136333A2

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK YU

DOCDB simple family (publication)

WO 2006136333 A2 20061228; WO 2006136333 A3 20070816; EP 1893791 A2 20080305; US 2008210567 A1 20080904

DOCDB simple family (application)

EP 2006005790 W 20060616; EP 06754399 A 20060616; US 96109507 A 20071220