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Global Patent Index - EP 0367265 A2

EP 0367265 A2 19900509 - Electrophotographic dry developer.

Title (en)

Electrophotographic dry developer.

Title (de)

Trockener elektrophotographischer Entwickler.

Title (fr)

Développateur sec électrophotographique.

Publication

EP 0367265 A2 19900509 (EN)

Application

EP 89120305 A 19891102

Priority

JP 27810588 A 19881102

Abstract (en)

An electrophotographic dry developer comprises a carrier and toner particles comprising a binder resin comprising (A) a polyester resin and (B) a styrene-acrylic resin obtained by co-polymerizing a monomer having an amino group, at a weight ratio of (A) to (B) ranging from 55:45 to 95:5, both resin (A) and resin (B) and a dyestuff or pigment of chromatic color. It is positively charageable and serves for color electrophotography.

IPC 1-7

G03G 9/087

IPC 8 full level

G03G 9/087 (2006.01); G03G 9/09 (2006.01); G03G 9/097 (2006.01); G03G 9/113 (2006.01)

CPC (source: EP)

G03G 9/087 (2013.01)

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

EP 0367265 A2 19900509; EP 0367265 A3 19911218; EP 0367265 B1 19960214; DE 68925670 D1 19960328; DE 68925670 T2 19960926; JP 2733073 B2 19980330; JP H02124582 A 19900511

DOCDB simple family (application)

EP 89120305 A 19891102; DE 68925670 T 19891102; JP 27810588 A 19881102