Tannin mannich adducts for improving corrosion resistance of met

Details Tannin mannich adducts for improving corrosion resistance of met Tannin mannich adducts for improving corrosion resistance of met

1988-11-16

1990-07-31

Silverberg, Sam

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

148274, 148257, 148247, 528148, 528162, 106 1415, C23C 3282

Patent

active

049448129

ABSTRACT:
A vegetable tannin is condensed with formaldehyde and an amine to provide an acid soluble product which is useful in a metal treatment solution to enhance corrosion resistance and paint adhesion characteristics of a metal surface.

REFERENCES:
patent: 2098869 (1937-11-01), Harmon
patent: 2809088 (1943-06-01), Bauer
patent: 3975214 (1976-08-01), Kulick et al.
patent: 4174980 (1979-11-01), Howell, Jr. et al.
patent: 4474477 (1984-05-01), Deibig
patent: 4819174 (1989-03-01), Kimura

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