Patent · US Expired

Method for pretreating surfaces of electrically conductive materials prior to electroplating

US3972784A · kind A · utility

1Cited by

8References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Richard Dotzer · Nuremberg, DE
Georg Iwantscheff · Nuremberg, DE

Key dates

Filing date	Nov 27, 1973
Grant date	Aug 3, 1976
Priority date	—
Expiry date	Nov 27, 1993

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC25D3/44
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A method for pretreating the surfaces of electroconductive materials such as metals which are to be electroplated in an aprotic oxygen- and water-free organoaluminum electrolytic media in which the last mechanical operation generating fresh and bright surfaces is performed under the exclusion of air, oxygen, and moisture using a protective gas or protective liquid and the part being treated maintained in such an environment until electroplated.

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