Patent · US Expired

Agent for sealing metallic ground coats, especially ground coats consisting of zinc or zinc alloys

US6478886B1 · kind B1 · utility

20Cited by

3References

13Claims

0Family size

Assignee

Kunz GmbH · DE

Inventors

Volker G. Kunz · Trebur, DE
Hermann Donsbach · Trebur, DE
Burkhard Flamme · Hagen, DE

Key dates

Filing date	Dec 1, 2000
Grant date	Nov 12, 2002
Priority date	—
Expiry date	Dec 1, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23C2222/20
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Agent for sealing metallic substrates, in particular zinc or zinc alloy substrates, characterized in that it consists of an aqueous dispersion ofa) at least one silane derivative andb) a colloidal silica and/or colloidal silicate.This agent may be used for a direct coating of metallic substrates without chromatation.

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