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US Patent 6841344 Photographic elements containing a de-aggregating compound and dye-forming coupler

Patent 6841344 was granted and assigned to Eastman Kodak on January, 2005 by the United States Patent and Trademark Office.

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Patent abstract

The invention relates to a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith in the same dispersion a certain de-aggregating hydrogen bond donating and hydrogen bond accepting compound and at least one pyrazole fused ring derivative coupler. The combination provides improved colour reproduction.

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