Title:
Photographic color couplers containing mono-n-alkyl groups
United States Patent 2908573
Inventors:
Bush, Walter M.
Salminen, Ilmari F.
Thirtle, John R.
Publication Date:
10/13/1959
Export Citation:
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Assignee:
EASTMAN KODAK CO
Primary Class:
430/552
Other Classes:
430/553, 430/554, 430/556, 548/368.4, 564/158, 564/166, 564/168, 564/169, 564/175
International Classes:
C07D231/52; G03C7/32; C07D231/00; G03C7/32
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US Patent References:
2808329Photographic color correction using colored and uncolored couplers
2721798Compounds containing an isophthalate group useful in photography
2704711Photographic color correction
2652329Color couplers containing isophthalic acid radicals
2425503Nondiffusing couplers for color photography
2186849Manufacture of photographic silver halide emulsions