Corrosion resistant, coated metal laminate, its preparation and

Details Corrosion resistant, coated metal laminate, its preparation and Corrosion resistant, coated metal laminate, its preparation and

1986-05-28

1988-01-12

Barr, Josephine L.

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

252510, 252512, 252513, 252514, 252516, 252519, 252518, 106 113, 106 114, 106 112, 106 122, 524401, 524406, 524435, 524439, 524440, 524487, 524489, H01B 106

Patent

active

047190388

ABSTRACT:
Corrosive resistant, coated laminate consisting of metal substrate, anti-corrosive layer and paint layer, which is characterized by the fact that the anti-corrosive layer is formed by a composition containing, as essential components, at least one hexa-valent chromium containing chromium compound having a solubility of 20 to 10.sup.-5 and aqueous silica and/or aqueous resin as binder, and as optional component, a water soluble chromium compound having a solubility of more than 20, and the paint layer is free from chromium compound. The laminate is excellent, inter alia, in adhesion of coating and anti-corrosive property. The invention also provides a coated metal plate having excellent corrosion resistance and continuous spot weldability.

REFERENCES:
patent: 4390458 (1983-06-01), McKaveney
patent: 4518524 (1985-05-01), Stoetger
patent: 4555357 (1985-11-01), Kausga et al.

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