Rutile mixed phase pigment microgranulates, a process for their preparation and their use

US5108508A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Jakob Rademachers · Krefeld, DE
• Hans-Ulrich Hofs · Krefeld, DE
• Dieter Rade · Krefeld, DE

Key dates

• Filing date: Sep 10, 1990
• Grant date: Apr 28, 1992
• Expiry date: Sep 10, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2004/61
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Novel rutile mixed phase pigment microgranulates are disclosed which comprise hemispherical particles indented to form toroid-shaped beads. The microgranulates are free-flowing, non-dust forming, and are stable in handling.