Post treatment of phosphated metal surfaces by aluminum zirconiu

Details Post treatment of phosphated metal surfaces by aluminum zirconiu Post treatment of phosphated metal surfaces by aluminum zirconiu

1986-03-18

1987-03-17

Silverberg, Sam

Metal treatment

Compositions

Heat treating

148 615R, C23C 2283

Patent

active

046505261

ABSTRACT:
A method of treating phosphated metal surfaces to improve the corrosion-inhibiting properties of the metal surfaces and to improve the adhesion of siccative organic coatings thereto is described. The method comprises treating a phosphated metal surface with an aqueous mixture of an aluminum zirconium complex comprising the reaction product of a chelated aluminum moiety, an organofunctional ligand, and a zirconium oxyhalide. Optionally, though not required, the complex treated phosphated metal surfaces can be rinsed with water prior to the application of a siccative organic coating. In lieu of, or in addition to, a siccative organic coating, the complex treated, phosphated metal surfaces can be given a seal coating of a rust-inhibiting oil. Metal surfaces and metal articles treated in accordance with the method of the present invention also are described.

REFERENCES:
patent: 3695942 (1972-10-01), Binns
patent: 3912548 (1975-10-01), Faigen
patent: 3966502 (1976-06-01), Binns

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