Method of increasing speed of silver halide color...

Details Method of increasing speed of silver halide color... Method of increasing speed of silver halide color...

2006-06-13

2006-06-13

Le, Hoa Van (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

C430S383000, C430S386000, C430S963000

Reexamination Certificate

active

07060424

ABSTRACT:
A method of increasing speed of a silver halide color photosensitive material. The photosensitive material has, on a support, a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a red-sensitive silver halide emulsion layer, and a nonsensitive layer. The method comprises adding, to the emulsion layer or the nonsensitive layer, a compound represented by formula (M) or (C):in the formula (M), R1represents H or a substituent, Z represents a group of non-metallic atoms required to form a 5-membered azole ring containing 2 to 4 nitrogen atoms, and X represents H or a substituent, and in the formula (C), Za represents —NH— or —CH(R3)—, Zb and Zc represent —C(R4)═ or —N═, R1, R2and R3represent an electron attractive group having a Hammett constant σp of 0.2 to 1.0, R4represents H or substituent, and X represents H or a substituent.

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U.S. Pat. Appl. No. 10/298,633 filed Nov. 19, 2002.

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