Solution for reducing the blackening or tarnishing of a metal sheet and metal sheet

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United States of America Patent

PATENT NO 10704157
APP PUB NO 20150093594A1
SERIAL NO

14371642

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Abstract

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The present invention provides an aqueous treatment solution containing sulfate ions SO42− in a concentration greater than or equal to 0.01 mol/l, to treat sheet metal including a steel substrate coated on at least one face with a coating including at least zinc and magnesium to reduce blackening or tarnishing of the sheet metal during storage. The present invention also provides a sheet metal treated with a solution of this type.

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Patent Owner(s)

Patent OwnerAddress
ARCELORMITTAL INVESTIGACION Y DESARROLLO S LSESTAO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Allely, Christian Metz, FR 45 135
Chaleix, Daniel Verny, FR 26 79
Feltin, Pascale Saint Privat la Montagne, FR 9 11
Monnoyer, Maxime Audun le Roman, FR 9 25

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