摘要 |
The invention relates to a method for coating metallic surfaces with a silane/silanol/siloxane/polysiloxane-containing mixture, whereby the composition comprises a) at least one compound selected from silanes, silanols, siloxanes and polysiloxanes, b) at least one titanium-, hafnium-, zirconium-, aluminium- or/and boron-containing compound, c) at least one type of cation selected from cations of metals of the 1<SUP>st</SUP> to 3<SUP>rd</SUP> and 5<SUP>th</SUP> to 8<SUP>th</SUP> sub-groups, including lanthanides and the second main group of the periodic table of the elements, or/and at least one corresponding compound, a substance d), selected from d<SUB>1</SUB>) silicon-free compounds with at least one amino, urea or/and ureido group, d<SUB>2</SUB>) nitrite anions or/and compounds with at least one nitro group, d<SUB>3</SUB>) compounds based on peroxide, d<SUB>4</SUB>) phosphorus-containing compounds, anions of at least one phosphate or/and anions of at least one phosphonate and e) water and f) optionally at least one organic solvent. The invention further relates to corresponding aqueous compositions. |
申请人 |
CHEMETALL GMBH;KOLBERG, THOMAS;WALTER, MANFRED;SCHUBACH, PETER |
发明人 |
KOLBERG, THOMAS;WALTER, MANFRED;SCHUBACH, PETER |