Preparations of monodisperse spherical oxide particles

US6302926A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Ralf Anselmann · Munster, DE
• Carsten Griessmann · Groß-Zimmern, DE
• Manuela Loch · Merxheim, DE
• Kurt Marquard · Reinheim, DE

Key dates

• Filing date: Jun 7, 1995
• Grant date: Oct 16, 2001
• Expiry date: Jun 7, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/80
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to preparations of monodisperse spherical oxide particles in the form of free-flowing powders of agglomerates in which the particles are bonded to one another by a binder. With these preparations, the oxide particles can be homogeneously dispersed in polymer systems with particular ease.