Process for deionizing and concentrating emulsions
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United States of America Patent
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Nov 2, 1999
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N/A
app pub date -
Jan 14, 1998
filing date -
Jan 14, 1998
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Expired
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Abstract
A process of washing an emulsion such as a silver halide emulsion which contains a hydrophilic colloid comprises deionizing the emulsion and coagulating the emulsion with an anionic polymer and separating the coagulum from the supernatant and resuspending the coagulum with hydrophilic colloid, water and a base.
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