Patent · US Active

Method for continuously operating acid or alkaline zinc or zinc alloy baths

US8475874B2 · kind B2 · utility

0Cited by

9References

12Claims

0Family size

Assignee

Atotech Deutschland GmbH & Co. KG · DE

Inventors

Roland Vogel · Dresden, DE
Birgit Sonntag · Berlin, DE
Jens Heydecke · Berlin, DE
Jens Geisler · Rendsburg, DE
Ellen Habig · Berlin, DE
Andreas Noack · Friedrichstadt, DE

Key dates

Filing date	Nov 28, 2005
Grant date	Jul 2, 2013
Priority date	—
Expiry date	Nov 4, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC25D21/14
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention provides a process for depositing metallic layers from acidic or alkaline zinc or zinc alloy baths containing organic additives selected from brighteners, surfactants and complexing agents, a soluble zinc salt and optionally further metal salts selected from Fe, Ni, Co, Sn salts, wherein the bath can be purified continuously so that the process can be operated without interruption, as well as apparatus for carrying out this process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.