Photothermographic recording material comprising sensitizing dyes and a recording process therefor
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United States of America Patent
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Mar 2, 1999
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N/A
app pub date -
Jul 8, 1997
filing date -
Jul 24, 1996
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Abstract
A photothermographic recording material comprising a support and a photo-addressable thermally developable element comprising a substantially light-insensitive organic silver salt, a reducing agent therefor in thermal working relationship therewith, photosensitive silver halide spectrally sensitized with a dye and in catalytic association with the substantially light-insensitive organic silver salt and a binder, characterized in that the dye is represented by formula (I): ##STR1## with an anion if necessary for charge compensation, wherein Z.sup.1 and Z.sup.2 independently represent S, O or Se; R.sup.1 and R.sup.13 independently represent an alkylene group; X.sup.1 and X.sup.2 independently represent a --(C.dbd.O)--R.sup.18, a --(SO.sub.2)R.sup.19 or a (S.dbd.O)--R.sup.20 group where R.sup.18, R.sup.19, and R.sup.20 independently represent an alkoxy-, aryloxy-, amino- or substituted amino-group.
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