Photographic infra-red sensitized material containing a speed en

Details Photographic infra-red sensitized material containing a speed en Photographic infra-red sensitized material containing a speed en

1991-07-09

1993-03-02

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430517, 430522, 430584, 430600, 430944, 430945, G03C 120, G03C 128

Patent

active

051908549

ABSTRACT:
A photographic laser recording material is disclosed comprising a transparent base and at least one emulsion layer containing a silver halide emulsion which is sensitized to the near infra-red by the combination of a heptamethine chain containing dye according to general formula (I) and a supersensitizer characterized in that said emulsion layer further contains a compound according to general formula (II): ##STR1## wherein, Z.sup.1 and Z.sup.2 represent a non metallic atomic group necessary to complete a benzothiazole, benzoxazole, naphtothiazole or naphtoxazole nucleus; R.sub.5 and R.sub.6 each represent an alkyl or substituted alkyl group;

REFERENCES:
patent: 3849658 (1974-11-01), Jeurissen et al.
patent: 4282309 (1981-08-01), Laridon et al.
patent: 4536473 (1985-08-01), Mihara
patent: 5057405 (1991-10-01), Shiba et al.

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