Electroplating baths salts of aromatic hydroxy compounds and their use as brighteners

US5951841A · kind A · utility

Assignee

• BASF SE

Inventors

• Thomas Wehlage · Speyer, DE
• Ulrich Schröder · Bischofswerda, DE
• Alfred Oftring · Bad Dürkheim, DE

Key dates

• Filing date: Oct 6, 1997
• Grant date: Sep 14, 1999
• Expiry date: Oct 6, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D311/16
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Salts of aromatic hydroxy compounds are used as brighteners in acidic electroplating baths. Furthermore, acidic electroplating baths for the electrolytic deposition of metallic layers onto shaped articles comprise, as brighteners, at least one novel salt of an aromatic hydroxy compound. Finally, shaped articles are electroplated by a process using the novel acidic electroplating baths.