Toners and/or toner mixtures

US6303256A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Dieter Kerner · Midland Park, US
• Helmut Mangold · Rodenbach, DE
• Juergen Meyer · Taunusstein, DE

Key dates

• Filing date: Nov 2, 2000
• Grant date: Oct 16, 2001
• Expiry date: Nov 2, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G9/09716
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A toner or a mixture of toners, comprises a pyrogenically synthesized alumina-silica mixed oxide as a component in combination with other components necessary to complete a toner formulation. The surface of the mixed alumina-silica oxide material.