Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1999-06-24
2000-03-28
Le, Hoa Van
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430384, 430385, G03C 173
Patent
active
060430176
ABSTRACT:
The present invention relates to a new compound of formula (I) with the proviso that Y represents N, and also relates to a colour photographic silver halide material comprising at least one red-sensitive silver halide layer with which according to the invention a compound of formula (I) is associated, and also relates to a photographic colour development process in which couplers of formula (I) are reacted with colour developers of the phenylenediamine and/or diaminotoluene type to form coupling products which exhibit a strong absorption, particularly in the infrared region. The present invention further relates to the use of compounds of formula (I) as cyan and/or infrared couplers in colour photographic silver halide materials.
REFERENCES:
patent: 3277086 (1966-10-01), Wei et al.
J.W. Chern, et al., "1,2,4-Benzothiadiazine 1,1-Dioxides, Part 4:Mitsunobu Reactions of 3-Hydroxylalkylamino-and 3-Mercaptoalkylamin-4H-1,2,4-benzothiadiazine 1,1-Dioxides. A Convenient Synthesis of Built-in Guanidine Tricycles and Disulfides" Synthesis, Bd. 2, Feb. 1991,(1991-02) pp. 159-161).
S. Plescia et al., "Reductive Heterocycliczation Leading to Some 9,9-Dioxy-4H-pyrazolo(1,5-b)-1,2,4-benzothiadiazine Derivatives", Journal of Heterocyclic Chemistry. Bd. 13, Nr. 4, Apr. 1976 (1976-04) pp. 395-397.
Agfa-Gevaert NV
Le Hoa Van
LandOfFree
Color photographic silver halide material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Color photographic silver halide material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color photographic silver halide material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1324881