# US 4,396,707 A · Photographic material, process for the production thereof, process for the production of photographic images and new triazoles

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- Number: US 4,396,707 A
- Document ID: US4396707A
- Status: Granted
- Kind: A
- Application number: 06/295,756
- Filed: 1981-08-24
- Granted: 1983-08-02
- Earliest claimed: 1980-09-02
- Assignees: Agfa-Gevaert
- Inventors: Anita von Konig; Werner Liebe; Wilhelm Saleck
- Web page: https://patentgrep.com/patent/US4396707A

## CPC

- C07D 249/12: Oxygen or sulfur atoms
- G03C 1/34: Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- G03C: PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES (for photomechanical purposes G03F); PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY (photographic processes characterised by the use or manipulation of apparatus classifiable per se in subclass G03B, see G03B; photomechanical production of textured or patterned surfaces G03F; electrophotography, magnetography G03G)

## Abstract

New triazoles of the formula ##STR1## are suitable stabilizing agents in photographic materials.

## Claims

### Claim 1

Light-sensitive photographic material containing at least one light-sensitive silver halide emulsion layer and optionally other layers, wherein the improvement comprises at least one layer contains a stabilizer compound corresponding to general formula (I): ##STR25## in which R.sup.1 denotes an optionally substituted alkyl, cycloalkyl, aryl or aralkyl group or a substituted triazole group linked via an --S-- atom
R.sup.2 denotes H, acyl, alkyl or --COOR.sup.5
R.sup.3 denotes H, acyl or --COOR.sup.5
R.sup.4 denotes H or alkyl
R.sup.5 denotes alkyl, cycloalkyl, aryl, aralkyl n and m, which are the same or different, denote 0 or 1 and
B denotes a divalent linking member

### Claim 2 (depends on 1)

Material according to claim 1, wherein
R.sup.1 is an alkyl group with 1-6 C atoms or a cycloalkyl group with 5 or 6 C atoms or a phenyl group or a benzyl group or a group of the formula ##STR26## in which R.sup.2 -R.sup.4 have the meaning indicated in claim 1 and wherein
R.sup.2 is H, acetyl, alkyl with 1-4 C atoms or COOR.sup.5
R.sup.3 is H or an acyl group
R.sup.4 denotes H or an alkyl group with 1-4 C atoms
R.sup.5 denotes alkyl with 1-6 C atoms or cycloalkyl with 5 or 6 C atoms, or phenyl or benzyl
B is --O-- or an organic group which can carry an oxygen atom either at one or at two positions.

### Claim 3 (depends on 1)

Material according to claim 1, wherein
R.sup.1 represents methyl, ethyl, isopropyl, butyl, phenyl, benzyl or a cycloalkyl group
R.sup.2 represents acetyl or COOR.sup.5
R.sup.3 represents H or acetyl
R.sup.4 represents H, methyl or ethyl
R.sup.5 represents ethyl, butyl or cyclohexyl
B represents --O-- or an alkylene group, an arylene group, a cycloalkylene group or an aralkylene group which organic groups can carry an oxygen atom either at one or at two positions.

### Claim 4 (depends on 1)

Material according to claim 1 wherein B denotes
--O--
--O--[CH.sub.2 ].sub.p --O-- in which p=1-4
--[CH.sub.2 ].sub.p -- in which p=1-4 ##STR27##

### Claim 5 (depends on 1)

Material according to claim 1, wherein a compound corresponding to general formula (I) is contained in a quantity of from 5 to 500 mg per mol of silver halide.

### Claim 6 (depends on 1)

Material according to claim 1, characterised in that it contains at least one of the following compounds: ##STR28##

### Claim 7 (depends on 1)

Process for the production of photographic images by imagewise exposure and development of the material according to claim 1.

### Claim 8

In a process for stabilizing a light sensitive photographic material containing silver halide emulsion
including the preparation of the material for casting a supported layer comprising the steps of precipitating the silver halide in the presence of a protective colloid and chemical ripening the emulsion to form a casting solution
the improvement which comprises after precipitation of the silver halide and before chemical ripening, adding to the casting solution a stabilizing amount of a compound of the following formula: ##STR29##