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EP 0633509 B1 19990107 - Electrophotographic toner

Title (en)

Electrophotographic toner

Title (de)

Elektrophotographischer Toner

Title (fr)

Révélateur électrophotographique

Publication

EP 0633509 B1 19990107 (EN)

Application

EP 94114757 A 19910621

Priority

EP 91305642 A 19910621
JP 16517890 A 19900622

Abstract (en)

[origin: EP0633509A1] The present invention discloses a toner for electrophotography. This toner comprises a surface tension reducing agent and a binder resin. Because the melt viscosity of the toner at a temperature of 200<o>C is 30 poises or more, a toner having an excellent void resistance can be obtained without a worsening of the fixability and blocking resistance thereof.

IPC 1-7

G03G 9/087

IPC 8 full level

G03G 9/087 (2006.01); G03G 9/08 (2006.01)

CPC (source: EP)

G03G 9/0821 (2013.01); G03G 9/0872 (2013.01); G03G 9/08773 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0633509 A1 19950111; EP 0633509 B1 19990107; DE 69130740 D1 19990218; DE 69130740 T2 19990520; JP 2735165 B2 19980402; JP H0456867 A 19920224

DOCDB simple family (application)

EP 94114757 A 19910621; DE 69130740 T 19910621; JP 16517890 A 19900622