Patent · US Active

High-gloss multilayer effect pigments having a narrow size distribution, and method for the production thereof

US8728228B2 · kind B2 · utility

9Cited by

13References

19Claims

0Family size

Assignee

ECKART GmbH · DE

Inventors

Dirk Schumacher · Pegnitz, DE
Michael Grüner · Zwingenberg, DE
Günter Kaupp · Jessenitz Siedlung, DE

Key dates

Filing date	Aug 9, 2010
Grant date	May 20, 2014
Priority date	—
Expiry date	Oct 14, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09C2200/408
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Multilayer pearlescent pigments based on platelet-shaped transparent substrates with an optically active coating, where the optically active coating includes at least

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