Patent · US Expired

Use of inter-polyelectrolyte complexes as charge control agents

US6030738A · kind A · utility

13Cited by

6References

8Claims

0Family size

Assignee

Clariant Corporation · DE

Inventors

Eduard Michel · Frankfurt, DE
Ruediger Baur · Niedernhausen, DE
Hans-Tobias Macholdt · Darmstadt, DE

Key dates

Filing date	Jul 30, 1998
Grant date	Feb 29, 2000
Priority date	—
Expiry date	Jul 30, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S977/776
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Inter-polyelectrolyte complexes (IPECs) are employed as charge control agents and charge improvers in electrophotographic toners and developers, in triboelectrically or electrokinetically sprayable powders and powder coating materials and in electret materials.

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