Use of metal carboxylates and sulfonates as charge control agents

US6207335A · kind A · utility

Assignee

• Clariant Corporation · DE

Inventors

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

Key dates

• Filing date: Aug 17, 1999
• Grant date: Mar 27, 2001
• Expiry date: Aug 17, 2019

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01G7/023
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Use of metal carboxylates and sulfonates as charge control agents Metal carboxylates and metal sulfonates are employed as charge control agents in electrophotographic toners and developers, as charge improvers in powder coating materials and electret materials, and in electrostatic separation processes.