Global Patent Index - EP 0050987 B1

EP 0050987 B1 19850605 - ONE PART TONER POWDER COMPOSITION

Title (en)

ONE PART TONER POWDER COMPOSITION

Publication

EP 0050987 B1 19850605 (EN)

Application

EP 81305059 A 19811027

Priority

US 20141780 A 19801028

Abstract (en)

[origin: EP0050987A1] A one-part, flowable, dry, electrostatically attractable toner powder comprising (a) particles each comprising a blend of from about 30 to 80 parts by weight thermoplastic binder and, correspondingly, from about 70 to 20 parts by weight magnetically responsive material; and (b) a surface treatment composition comprising 0.1 to 2 parts by weight fluoroaliphatic compound per 100 parts by weight of said particles. The toner powder possesses humidity resistance and improve image quality, particularly in terms of image sharpness.

IPC 1-7

G03G 9/08; G03G 13/16

IPC 8 full level

G03G 9/08 (2006.01); G03G 9/087 (2006.01); G03G 9/09 (2006.01); G03G 9/097 (2006.01)

CPC (source: EP)

G03G 9/09766 (2013.01)

Citation (examination)

EP 0037297 A1 19811007 - CII HONEYWELL BULL [FR]

Designated contracting state (EPC)

CH DE FR GB IT LI NL

DOCDB simple family (publication)

EP 0050987 A1 19820505; EP 0050987 B1 19850605; CA 1158090 A 19831206; DE 3170877 D1 19850711; JP S57101854 A 19820624

DOCDB simple family (application)

EP 81305059 A 19811027; CA 386561 A 19810924; DE 3170877 T 19811027; JP 17195781 A 19811027