Chromium and fluoride free metal treatment

Details Chromium and fluoride free metal treatment Chromium and fluoride free metal treatment

1995-03-01

1996-05-21

Silverberg, Sam

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

148247, C23C 2277

Patent

active

055185550

ABSTRACT:
A heavy metal and fluoride free pretreatment for a metal surface which enhances corrosion resistance and surface adhesion properties is described. The pretreatment is an aqueous solution of an anionic polyacrylamide which can be rinsed or dried in place.

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patent: 5158622 (1992-10-01), Reichgott et al.
patent: 5401333 (1995-03-01), Ougand
Derwent Abstract; 82-22514E.

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