Light-sensitive color photographic material

Details Light-sensitive color photographic material Light-sensitive color photographic material

1975-10-03

1981-02-10

Brown, J. Travis

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Two or more radiation-sensitive layers containing other than...

430445, 430448, 430504, 430544, 430957, G03C 176

Patent

active

042502527

ABSTRACT:
In a color photographic material wherein by color development there are produced either non-diffusing image dyes or diffusing image dyes (the latter being transferred to an image-receiving layer) the color development is controlled by means of non-diffusing thioether compounds which on color development release a diffusing mercapto compound but do not themselves form a dye. The mercapto compound inhibits the development of the silver halide and the thioether compound has the formula ##STR1## R.sub.1 =hydrogen or alkyl with 1-3 carbon atoms R.sub.2 =alkyl with up to 22 carbon atoms the group --S--Y is split off during color development and forms a mercaptane, e.g. 5-mercapto-1-phenyltetrazole, which inhibits the development.

REFERENCES:
patent: 2353205 (1944-07-01), Yittum et al.
patent: 2364675 (1944-12-01), Yittum et al.
patent: 2435629 (1948-02-01), Jennings
patent: 3844795 (1974-10-01), Puschel et al.
patent: 3932185 (1976-01-01), Matsuura
patent: 3936300 (1976-02-01), Cardone

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