Claims
- 1. A silver halide photographic element comprising a silver halide emulsion which is greater than 50- mole% silver chloride, said emulsion containing an isothiazolone compound represented by the formula wherein R1 is a substituent; and Z contains the carbon atoms necessary to form a substituted or unsubstituted five or six-membered non-aromatic ring, wherein the isothiazolone compound was added before or during precipitation of the emulsion.
- 2. The silver halide photographic element of claim 1 wherein wherein Z contains the carbon atoms necessary to form a substituted or unsubstituted five-membered non-aromatic ring.
- 3. The silver halide photographic element of claim 1 wherein R1 is a hydrogen atom or a substituted or unsubstituted aliphatic aromatic or heterocyclic group.
- 4. The silver halide photographic element of claim 2 wherein R1 is a hydrogen atom or a substituted or unsubstituted aliphatic aromatic or heterocyclic group.
- 5. The silver halide photographic element of claim 1 wherein R1 is a hydrogen atom or a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 10 carbon atoms or a substituted or unsubstituted 5 to 6-membered heterocyclic ring.
- 6. The silver halide photographic element of claim 1 wherein R1 is a hydrogen atom or a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 10 carbon atoms or a substituted or unsubstituted 5 to 6-membered heterocyclic ring.
- 7. The silver halide photographic element of claim 2 wherein R1 is a hydrogen atom or a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms.
- 8. The silver halide photographic element of claim 1 wherein the silver halide emulsion is greater than 90 mole-% silver chloride.
- 9. The silver halide photographic element of claim 1 wherein the silver halide emulsion is greater than 95 mole-% silver chloride.
- 10. A method of preparing a silver halide emulsion comprising precipitating a silver halide emulsion which is greater than 50 mole-% silver halide and adding to the emulsion before or during precipitation an isothiazolone compound represented by the formula wherein R1 is a substituent; and Z contains the carbon atoms necessary to form a substituted or unsubstituted five or six membered non-aromatic ring.
- 11. The method of claim 11, wherein wherein Z contains the carbon atoms necessary to form a substituted or unsubstituted five-membered non-aromatic ring.
- 12. The method of claim 10 wherein R1 is a hydrogen atom or a substituted or unsubstituted aliphatic aromatic or heterocyclic group.
- 13. The method of claim 10 wherein R1 is a hydrogen atom or a substituted or unsubstituted aliphatic aromatic or heterocyclic group.
- 14. The method of claim 10 wherein R1 is a hydrogen atom or a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 10 carbon atoms or a substituted or unsubstituted 5 to 6-membered heterocyclic ring.
- 15. The method of claim 10 wherein R1 is a hydrogen atom or a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 10 carbon atoms or a substituted or unsubstituted 5 to 6-membered heterocyclic ring.
- 16. The method of claim 11 wherein R1 is a hydrogen atom or a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms.
- 17. The method of claim 10 wherein the silver halide emulsion is greater than 90 mole-% silver chloride.
- 18. The method of claim 10 wherein the silver halide emulsion is greater than 95 mole-% silver chloride.
- 19. The method of claim 10 wherein the isothiazolone compound is added after initial nucleation of the silver halide emulsion.
CROSS REFERENCE TO RELATED APPLICATIONS
This is a continuation-in-part application of Ser. No. 09/177,640 filed Oct. 22, 1998 entitled “Precipitation of High Chloride Content Silver Halide Emulsions” by Chen et al.
US Referenced Citations (15)
Foreign Referenced Citations (2)
Number |
Date |
Country |
10-83039 |
Mar 1998 |
JP |
10-90822 |
Apr 1998 |
JP |
Non-Patent Literature Citations (4)
Entry |
Japanese Abstract 09-329862. |
Japanese Abstract 10-011739. |
Japanese Abstract 09-133977. |
Research Disclosure No. 37026, Feb. 1995. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
09/177640 |
Oct 1998 |
US |
Child |
09/414198 |
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US |