Electrostatic toner

US4912006A · kind A · utility

Assignee

• BASF SE

Inventors

• Walter Breitschaft · Ludwigshafen, DE
• Erwin Czech · Biblis, DE
• Udo Mayer · Bischofswerda, DE
• Guenther Seybold · Schifferstadt, DE
• Horst Bruder · Ludwigshafen, DE
• Rainer Dyllick-Brenzinger · Speyer, DE

Key dates

• Filing date: Jun 16, 1989
• Grant date: Mar 27, 1990
• Expiry date: Jun 16, 2009

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G9/09758
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An electrostatic toner consists of a polymer a charge controlling component and an optional color-giving component, wherein the charge controlling agent component comprises one or more compounds of the formula `(I)`, ##STR1## ps where R.sup.1 is chlorine or methyl, R.sup.2 is C.sub.4 -C.sub.22 -alkyl, benzyl or 2-phenylethyl, A.THETA. is an anion, n is 0, 1 or 2, m is 1 or 2 and r is 1 or 2.