EP 0640882 A1 19950301 - Toner for electrophotography and process for the production thereof.
Title (en)
Toner for electrophotography and process for the production thereof.
Title (de)
Elektrophotographischer Toner, und Verfahren zu dessen Herstellung.
Title (fr)
Révélateur pour électrophotographie et procédé pour sa fabrication.
Publication
Application
Priority
- JP 23593993 A 19930830
- JP 20025094 A 19940802
Abstract (en)
A biodegradable or hydrolyzable toner for electrophotography, which permits the easy reclaiming and recycling of used copying paper comprises as a binder resin, a lactic acid-based resin of the formula (1), H-[-0-CH(CH3)-CO-]n-OR (1) wherein R is hydrogen, alkyl, an alkali metal or an alkaline earth metal, and n is an integer of 10 to 20,000, and may further comprise at least one of a colourant, a charge control agent or an offset preventer.
IPC 1-7
IPC 8 full level
C08L 101/16 (2006.01); G03G 9/08 (2006.01); G03G 9/087 (2006.01)
CPC (source: EP)
G03G 9/08755 (2013.01)
Citation (search report)
- [XY] WO 9201245 A1 19920123 - DU PONT [US]
- [Y] EP 0203818 A2 19861203 - MITA INDUSTRIAL CO LTD [JP]
- [Y] C.AUCLAIR: "Dispersion of carbon black in polyester during polymerisation", XEROX DISCLOSURE JOURNAL, vol. 4, no. 6, 1 November 1979 (1979-11-01), STAMFORD, CONN. USA, pages 733
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0640882 A1 19950301; EP 0640882 B1 19990210; DE 69416470 D1 19990325; DE 69416470 T2 19990624; JP 2909873 B2 19990623; JP H07120975 A 19950512
DOCDB simple family (application)
EP 94306341 A 19940830; DE 69416470 T 19940830; JP 20025094 A 19940802