Industrial radiographic silver halide material suitable for rapid processing applications
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United States of America Patent
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Aug 30, 2005
Grant Date -
Jul 29, 2004
app pub date -
Jan 15, 2004
filing date -
Jan 15, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A silver halide industrial radiographic material comprising on at least one side of a support a hydrophilic gelatinous non-spectrally sensitized radiation-sensitive emulsion layer, having grains, coated in a total amount in the range from 6 to 20 g, expressed as an equivalent amount of silver nitrate per square meter, and at least one non-radiation sensitive protective gelatinous antistress overcoat layer thereupon, wherein a ratio of gelatin to silver, expressed as silver nitrate in the said layer arrangement is at least 0.70, wherein said gelatinous layers are hardened by a gelatin cross-linking agent in an amount in order to have a dissolving time of at least 40 minutes, said time being defined as the period of time from the moment when the silver halide photographic material, dipped into 50 ml of an aqueous solution of 1.5% by weight of sodium hydroxide at 50° C., until the moment that the base becomes visible due to dissolving of the layers coated thereupon, is characterized by a hydrophilic gelatinous layer arrangement wherein a hydrophilic polymer is present in an amount of at least 1 g per m2.
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