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US 5,209,820 AGranted
Baths and process for the chemical polishing of stainless steel surfaces
AssigneeSolvay & Cie (Societe Anonyme)
InventorsDaniel Tytgat, Nathalie Barthelemy
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Abstract
Baths for the chemical polishing of stainless steel surfaces which comprise a mixture of hydrochloric acid, nitric acid and phosphoric acid, a substituted or unsubstituted hydroxybenzoic acid and an amine in aqueous solution.
Claims13
A bath for the chemical polishing of stainless steel surfaces, comprising a mixture of hydrochloric acid, nitric acid and phosphoric acid, and a substituted or unsubstituted hydroxybenzoic acid in aqueous solution, characterised in that they comprise a water-soluble amine in the aqueous solution.
Dependencies are inferred from the claim text.