Passivating alkaline composition on the basis of water glass

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United States of America Patent

PATENT NO 9777165
SERIAL NO

14662303

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Abstract

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The present invention relates to an alkaline aqueous composition on the basis of water glass and organosilanes with non-hydrolysable substituents which have a primary amino group in the substituents, for providing corrosion-protected coatings on metal surfaces which convey good reshaping properties in metal processing. For the desired functionality, the compositions according to the invention contain the organosilane and the water glass in a predetermined ration. The invention further relates to a method for pre-treating metal surfaces using the alkaline aqueous compositions, which method provides excellent results with regard to corrosion protection, varnish adhesion and reshapability, particularly on aluminum and on steel strips provided with aluminum alloy metal coatings.

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Patent Owner(s)

Patent OwnerAddress
HENKEL AG & CO KGAARUHRSTRASSE 19 HAMBURG 22761

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Roth, Marcel Duesseldorf, DE 38 157
Stodt, Juergen Neuss, DE 7 34
Wolpers, Michael Erkrath, DE 9 17

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