Patent · US Expired

Multilayer pigments based on glass flakes

US7604862B2 · kind B2 · utility

21Cited by

20References

22Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Klaus Ambrosius · Frankfurt, DE
Ralf Anselmann · Munster, DE
Sabine Schoen · Darmstadt, DE

Key dates

Filing date	Jul 1, 2002
Grant date	Oct 20, 2009
Priority date	—
Expiry date	Jul 1, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2996
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to multilayer pigments based on glass flakes and to a method for the production of such pigments. The resulting pigment can be used in any application for which pearlescent pigments have been heretofore used such as, for example, in plastics, paints, inks, cosmetic formulations, coatings including solvent or waterborne automotive paint systems, powder coatings, inks and agriculture foils, for the laser-marking of papers and plastics.

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