PHOTOGRAPHIC MATERIAL Russian patent published in 1998 - IPC

Abstract SU 1508794 A1

FIELD: photographic materials. SUBSTANCE: invention relates to photographic materials, in particular, to silver-free materials that can be used in reprography, photography, and when recording information by laser or oscillograph ray. To increase light sensitivity, light sensitive layer containing 64.5- 78.5 wt % polyvinyl alcohol and 13.7-18.0 wt % cupric chloride is supplemented with 7.4-19.4 wt % formaldehyde. EFFECT: increased light sensitivity by an order of magnitude. 1 tbl

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SU 1 508 794 A1

Authors

Eremin L.P.

Usov V.F.

Dates

1998-04-27—Published

1987-08-05—Filed