Quaternary ammonium salts as a conversion coating or as...

Details Quaternary ammonium salts as a conversion coating or as... Quaternary ammonium salts as a conversion coating or as...

C - Chemistry, Metallurgy

23

C

C23C 22/68 (2006.01) C09D 5/08 (2006.01) C23C 22/50 (2006.01) C23F 11/14 (2006.01)

Patent

CA 2589980

Disclosed are quaternary ammonium salts containing non-halogen anions such as carbonates, bicarbonates, phosphates, glycolates and mixtures thereof as conversion coatings or additives imparting anti-corrosive properties to paints. The invention relates to a method for inhibiting the corrosion of metal surfaces by applying a composition containing one or more quaternary ammonium carbonate or bicarbonate. The disclosure is also directed to anti- corrosive coatings for metal substrates containing these compounds and to metal substrates having these anticorrosive coatings.

L'invention concerne des sels d'ammonium quatrenaires contenant des anions non halogènes tels que des carbonates, des bicarbonates, des phosphates, des glycolates et des mélanges de ceux-ci en tant que revêtements de conversion ou additifs attribuant des propriétés anticorrosion à des peintures. L'invention concerne également un procédé destiné à inhiber la corrosion de surfaces métalliques par application d'une composition contenant un ou plusieurs carbonates ou bicarbonates d'ammonium quaternaires. La description est également orientée sur des revêtements anticorrosion pour des substrats métalliques contenant ces composés et des substrats métalliques possédant ces revêtements anticorrosion.

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