Patent · US Expired

Surface-modified platelet-shaped substrates

US6139962A · kind A · utility

10Cited by

1References

14Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Gerhard Herget · Ober-Ramstadt, DE
Brigitte Husseini · Darmstadt, DE

Key dates

Filing date	Sep 28, 1998
Grant date	Oct 31, 2000
Priority date	—
Expiry date	Sep 28, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2993
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention relates to surface-modified pigments based on platelet-shaped substrates, having improved settling and reagitation characteristics, and to their preparation processes and use.

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