Patent · US Expired

Electrically activated charge sensitive recording material and process

US4155760A · kind A · utility

7Cited by
4References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 26, 1978
Grant dateMay 22, 1979
Priority date—
Expiry dateJun 26, 1998

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S430/167
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A non-silver, charge-sensitive recording composite element having an ohmic resistivity of at least about 1.times.10.sup.10 ohm-cm comprising (a) a first electrically conducting layer in association with (b) a photoconductor layer, (c) a non-silver, electrically activated recording layer comprising an image-forming combination of (i) a certain tellurium (II) coordination complex with (ii) a reducing agent, and a binder and (d) a second electrical conducting layer can provide a non-silver image having a density equal to silver images. Silica, especially colloidal silica, is also very useful in the recording layer. The recording element can be room light handleable and can provide a developed image by dry development processes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.