Patent · US Expired

Readily dispersible nacreous pigment preparation

US4814020A · kind A · utility

7Cited by

4References

12Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Manfred Kieser · Darmstadt, DE
Otto Stahlecker · Darmstadt, DE

Key dates

Filing date	Aug 11, 1987
Grant date	Mar 21, 1989
Priority date	—
Expiry date	Aug 11, 2007

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2998
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention relates to pigment preparations, in which a platelet-shaped nacreous pigment is coated with a polymer resin and, if appropriate, plasticizers, solvents and surfactants.

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