EP 0034952 A2 19810902 - Heat-developable electrically activatable recording material.
Title (en)
Heat-developable electrically activatable recording material.
Title (de)
Mit Wärme entwickelbares, elektrisch aktivierbares Aufzeichnungsmaterial.
Title (fr)
Matériau d'enregistrement électro-activable, et thermodéveloppable.
Publication
Application
Priority
- US 12418980 A 19800225
- US 15671280 A 19800605
Abstract (en)
A room light-handleable recording material comprises an electrically conductive support having thereon in sequence (a) a polymeric electrically active conductive (EAC) layer, a recording layer (b) comprising a dye-forming coupler and an oxidation-reduction combination comprising an organic silver salt and a reducing agent having an oxidation product which reacts with the coupler to form image dye. Imagewise passage of current through the material, possibly achieved by applying a potential across the material and an exposed photoconductive layer in contact therewith, produces a heat-developable latent image. Higher current sensitivity of this material is obtained by using as the organic silver salt a salt of a mercapto-1,2,4-triazole derivative and as the polymer for the EAC layer a vinyl addition polymer of the structure: <CHEM> wherein R<1> is hydrogen or methyl, R<2> is aryl or R<3>COO- where R<3> is alkyl or aryl, each X is bromine or chlorine, and n and p are such that the polymer contains from 50 to 85% by weight of the halogen-containing unit.
IPC 1-7
IPC 8 full level
G03C 1/498 (2006.01); G03G 17/00 (2006.01)
CPC (source: EP)
G03C 1/49872 (2013.01); G03G 17/00 (2013.01); G03C 1/4989 (2013.01)
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
EP 0034952 A2 19810902; EP 0034952 A3 19821215; CA 1172893 A 19840821
DOCDB simple family (application)
EP 81300784 A 19810225; CA 367980 A 19810106