Visible dried-in-place non-chrome polyacrylamide based treatment

Details Visible dried-in-place non-chrome polyacrylamide based treatment Visible dried-in-place non-chrome polyacrylamide based treatment

1993-12-14

1996-04-09

Silverberg, Sam

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

148244, 148251, C23C 2206

Patent

active

055057926

ABSTRACT:
A method of providing color to a polyacrylamide based, dried-in-place, non-chromate conversion coating is provided. The addition of a phthalo green pigment and optionally a nonionic surfactant to an aqueous, dried-in-place conversion coating treatment solution provides for a colored conversion coating without adversely affecting the corrosion resistance or adhesion properties of the conversion coating.

REFERENCES:
patent: 3114660 (1963-12-01), Cochran
patent: 3326728 (1967-06-01), Robinson
patent: 4136073 (1979-01-01), Muro et al.
patent: B14191596 (1990-06-01), Dollman et al.
patent: 4921552 (1990-05-01), Sander et al.
patent: 5158622 (1992-10-01), Reichgott et al.
patent: 5292378 (1994-03-01), Ouyang et al.

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