Global Patent Index - EP 0000599 B1

EP 0000599 B1 19830202 - ELECTRICALLY PHOTOSENSITIVE PARTICLES FOR PHOTOELECTROPHORETIC MIGRATION IMAGING PROCESSES

Title (en)

ELECTRICALLY PHOTOSENSITIVE PARTICLES FOR PHOTOELECTROPHORETIC MIGRATION IMAGING PROCESSES

Publication

EP 0000599 B1 19830202 (EN)

Application

EP 78200084 A 19780707

Priority

  • US 81869777 A 19770725
  • US 89918678 A 19780424

Abstract (en)

[origin: EP0000599A1] Electrically photosensitive particles for electrophoretic migration imaging processes. Electrophotosensitive particles (4) for electrophoretic migration imaging processes comprise a compound having the structure <CHEM> wherein m and n are zero, one or two; L<1> to L<7> are hydrogen, alkyl, cyano aralkyl, aryl or heterocyclyl, and in addition, any two of L<1>, L<2> and L<3> and any two of L<4>, L<5>, L<6> and L<7> may together represent the atoms needed to complete a carbocyclic ring having from 5-10 carbon atoms; A<1> represents an alkyl, aryl group or a heterocyclic nucleus; A<2> represents a basic heterocyclic nucleus; B<1> and B<2> represent cyano, carboxy, alkoxycarbonyl, aryloxycarbonyl, alkylsulfonyl, acyl, arylcarbonyl, heteroyl, nitro, nitro substituted aryl, sulfonyl, fluorosulfonyl, trifluoromethylsulfonyl, carbamoyl, arylcarbamoyl or alkylcarbamoyl. The particles (4) can be used in an electrophoretic migration imaging process which consists in placing them between two electrodes (1) and (5) and submitting them to an activating radiation and an electric field for obtaining an image on electrodes (1) and (5).

IPC 1-7

G03G 17/04; C09B 23/00

IPC 8 full level

G03G 17/04 (2006.01)

CPC (source: EP)

G03G 17/04 (2013.01)

Designated contracting state (EPC)

BE CH DE FR GB NL SE

DOCDB simple family (publication)

EP 0000599 A1 19790207; EP 0000599 B1 19830202; DE 2862171 D1 19830310; JP S5434832 A 19790314

DOCDB simple family (application)

EP 78200084 A 19780707; DE 2862171 T 19780707; JP 9085878 A 19780725