PROCEDURE FOR COATING METAL SURFACE WITH WATER COMPOSITION CONTAINING SILANE-USILANOL/SILOXANE/POLYSILOXANE AND SAID COMPOSITION Russian patent published in 2010 - IPC C23C22/05 C23C22/34 C23C22/36 

Abstract RU 2402638 C2

FIELD: metallurgy.

SUBSTANCE: procedure consists in coating metal surface with composition containing a) at least one compound a) chosen from silane, silanol, siloxane and polysiloxane at contents of silane/ silanol/ siloxane/polysiloxane from 0.02 to 1 g/l in terms of base of corresponding silanol and b) at least two compounds b) chosen from compounds containing titanium, hafnium, zirconium, aluminium or/and boron at contents of compounds b) from 0.1 to 15 g/l in terms of sum of corresponding metals and at least two complex fluorides chosen from complex fluorides of aluminium, boron, titanium, hafnium and zirconium, and also at least one kind of cations chosen from cations of metals of 1-3 and 5-8 subgroups including lanthanides, and also of the 2-nd basic group of periodic table of the elements or/and at least one corresponding compound c) at their contents from 0.01 to 6 g/l, d) at least one organic compound chosen from monomers, oligomers, polymers, copolymers and bloc-copolymers, also weight ratio of compounds a) to organic compounds d) in terms of additive of solid substance in the composition is from 1:0.05 to 1:12 depending on amount of added organic compound d) or/and e) at least one substance influencing pH value and f) water.

EFFECT: increased corrosion resistance of metal surface of composition meeting ecological requirements.

19 cl, 1 tbl

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RU 2 402 638 C2

Authors

Kol'Berg Tomas

Val'Ter Manfred

Shubakh Peter

Dates

2010-10-27Published

2005-11-09Filed