Process for preventing corrosion and embodiments thereof

Details Process for preventing corrosion and embodiments thereof Process for preventing corrosion and embodiments thereof

C - Chemistry, Metallurgy

23

F

6/194

C23F 11/18 (2006.01) C09C 1/00 (2006.01) C09D 5/08 (2006.01)

Patent

CA 1302661

- 1 - Abstract: The present invention is directed to a method for preventing the corrosion of a metal material, comprising contacting the metal material with an environment containing phosphate ions and soluble ions of vanadium in the presence of water and oxygen. Also, disclosed is a corrosion preventive pigment comprising a phosphate ion source and a soluble vanadium ion source and generating a soluble vanadium ion and a phosphate ion when contacted with water and oxygen. The pigment can be produced by mixing a phosphate compound and a vanadium compound or by melting a mixture of a phosphate compound, a vanadium compound, optionally a network modifier ion source and a glassy material followed by grinding. Further disclosed is a corrosion preventive coating composition comprising a phosphate ion source generating phosphate ions in the presence of water and oxygen, a vanadate ion source generating vanadate ions in the presence of water and oxygen and a film-forming resin.

545705

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