Patent · US Active

Highly lustrous silver-colored pigments with high opacity and metallic appearance, process for the preparation thereof and use of same

US9265701B2 · kind B2 · utility

0Cited by

6References

27Claims

0Family size

Assignee

ECKART GmbH · DE

Inventors

Michael Grüner · Zwingenberg, DE
Thomas Schneider · Frederick, US
Günter Kaupp · Jessenitz Siedlung, DE
Christian Rummer · Nuremberg, DE
Dirk Schumacher · Pegnitz, DE

Key dates

Filing date	Mar 23, 2012
Grant date	Feb 23, 2016
Priority date	—
Expiry date	Nov 4, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09C2200/301
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A silver-colored pigment is provided having a nonmetallic platelet-shaped substrate and at least one ilmenite-containing coating, wherein the nonmetallic platelet-shaped substrate is a nonmetallic platelet-shaped synthetic substrate and the amount of iron compounds, calculated as elemental iron, in the pigment is less than 5.0 % by weight, based on the total weight of the pigment. Processes for preparing the pigment also are provided.

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