Patent · US Expired

Toners and/or toner mixtures

US6197469A · kind A · utility

3Cited by

2References

9Claims

0Family size

Assignee

Degussa-Huels AG · DE

Inventors

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

Key dates

Filing date	Dec 16, 1999
Grant date	Mar 6, 2001
Priority date	—
Expiry date	Dec 16, 2019

Classification

Technology area (CPC G)Physics
CPC primaryG03G9/09716
WIPO fieldOptics
WIPO sectorInstruments

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.

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