Black zinc-plated steel sheet

Details Black zinc-plated steel sheet Black zinc-plated steel sheet

2007-03-06

2007-03-06

Lavilla, Michael E. (Department: 1775)

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

C428S624000, C428S626000, C428S632000, C428S336000, C428S457000

Reexamination Certificate

active

10536564

ABSTRACT:
A black galvanized steel sheet including a composite coating layer formed on a surface of a blackened galvanized steel sheet by applying a treatment solution containing a phosphate ion, a vanadate ion, a metal ion, an α,β-unsaturated carboxylic acid and a glycoluril resin; and an organic resin layer formed on the composite coating layer, is provided. The black galvanized steel sheet is excellent in heat absorption and heat dissipation, electrical conductance, and corrosion resistance in a worked portion. Furthermore, the black galvanized steel sheet does not include hexavalent chromium.

REFERENCES:
patent: 5525431 (1996-06-01), Kanamaru et al.
patent: 62-70583 (1987-04-01), None
patent: 2000-290783 (2000-10-01), None
patent: 2000-290783 (2000-10-01), None
patent: 2002-47579 (2002-02-01), None
patent: 2002-226783 (2002-08-01), None

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