Platelet-like colored pigments and process for producing the same

US5540769A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Klaus-Dieter Franz · Kelkheim, DE
• Klaus Ambrosius · Frankfurt, DE
• Stefan Wilhelm · Unterhaching, DE
• Katsuhisa Nitta · Iwaki, JP

Key dates

• Filing date: Sep 23, 1994
• Grant date: Jul 30, 1996
• Expiry date: Sep 23, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2982
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Platelet-shaped colored pigments containing titanium dioxide, one or more suboxides of titanium and an oxide or oxides of one or more metals other than titanium or non-metals and a process for the preparation thereof is disclosed.