Global Patent Index - EP 0548348 B1

EP 0548348 B1 19960320 - TONERS AND DEVELOPERS CONTAINING ESTER-CONTAINING QUATERNARY PYRIDINIUM SALTS AS CHARGE CONTROL AGENTS

Title (en)

TONERS AND DEVELOPERS CONTAINING ESTER-CONTAINING QUATERNARY PYRIDINIUM SALTS AS CHARGE CONTROL AGENTS

Title (de)

TONER UND ENTWICKLER WELCHE ESTER-HALTIGE QUATERNÄRE PYRIDINIUM-SALZE ALS LADUNGSSTEUERUNGSMITTEL ENTHALTEN

Title (fr)

TONERS ET REVELATEURS CONTENANT DES SELS DE PYRIDINIUM QUATERNAIRE A BASE D'ESTERS SERVANT D'AGENTS DE REGULATION DE CHARGE

Publication

EP 0548348 B1 19960320 (EN)

Application

EP 92915992 A 19920716

Priority

  • US 9205961 W 19920716
  • US 73435491 A 19910718

Abstract (en)

[origin: WO9302397A1] New electrostatographic toners and developers are provided containing novel charge control agents comprising ester-containing quaternary pyridinium salts having structure (I), wherein R1 is alkyl or aryl, X is (a), Y is hydrogen, alkyl, alkoxy or halogen, Z<-> is an anion and n is an integer from 1 to 6. Such ester-containing quaternary pyridinium salts also cause toner particles containing them to display lower fusing temperatures and improved paper adhesion indexes.

IPC 1-7

G03G 9/097

IPC 8 full level

G03G 9/097 (2006.01)

CPC (source: EP)

G03G 9/0975 (2013.01); G03G 9/09758 (2013.01)

Designated contracting state (EPC)

BE DE FR GB NL

DOCDB simple family (publication)

WO 9302397 A1 19930204; DE 69209253 D1 19960425; DE 69209253 T2 19961031; EP 0548348 A1 19930630; EP 0548348 B1 19960320; JP H06501788 A 19940224

DOCDB simple family (application)

US 9205961 W 19920716; DE 69209253 T 19920716; EP 92915992 A 19920716; JP 50295392 A 19920716