UST878013I4 - Defensive publication - Google Patents
Defensive publication Download PDFInfo
- Publication number
- UST878013I4 UST878013I4 US878013DH UST878013I4 US T878013 I4 UST878013 I4 US T878013I4 US 878013D H US878013D H US 878013DH US T878013 I4 UST878013 I4 US T878013I4
- Authority
- US
- United States
- Prior art keywords
- defensive publication
- carbodiimide
- incorporated
- emulsions
- pat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 150000001718 carbodiimides Chemical class 0.000 description 6
- 239000000839 emulsion Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- -1 silver halide Chemical class 0.000 description 4
- 239000004848 polyfunctional curative Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- JEXVQSWXXUJEMA-UHFFFAOYSA-N pyrazol-3-one Chemical compound O=C1C=CN=N1 JEXVQSWXXUJEMA-UHFFFAOYSA-N 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical compound C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- DCPMPXBYPZGNDC-UHFFFAOYSA-N hydron;methanediimine;chloride Chemical compound Cl.N=C=N DCPMPXBYPZGNDC-UHFFFAOYSA-N 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- LUXMOXSRIZZWMD-UHFFFAOYSA-N n'-(methoxymethyl)-n-methylmethanediimine Chemical compound COCN=C=NC LUXMOXSRIZZWMD-UHFFFAOYSA-N 0.000 description 1
- NASVTBDJHWPMOO-UHFFFAOYSA-N n,n'-dimethylmethanediimine Chemical compound CN=C=NC NASVTBDJHWPMOO-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/30—Hardeners
Definitions
- Photographic silver halide emulsions containing an incorporated pyrazolone magenta dye-forming coupler can be hardened with an incorporated carbodiimide hardener. Photographic elements comprising such emulsions, when exposed and processed, produce prints having low stain and high maximum density.
- Carbodiimide hardening agents including those described in Sheehan US. Pat. 2,938,892 issued May 31, 1960, Sheehan US. Pat. 3,135,- 748 issued June 2, 1964, and Brunken German Pat. 7218 issued May 10, 1954, can be used.
- Suitable carbodiimide hardening agents can be represented by the formula where each of R and R is an organic radical such as alkyl, alkoxy, allyl, aryl or heterocyclic groups.
- Suitable carbodiimide hardening agents which are incorporated in the photographic materials described herein are 1,3-dimethylcarbodiimide, 1-methyl-3-methoxymethylcarbodiimide, dicyclohexylcarbodiimide and l-ethyl-3-[3-dirnethylaminopropyl] carbodiimide hydrochloride.
- a process for preparing the aforementioned photographic silver halide materials from coating compositions comprising incorporated pyrazolone magenta dye-forming couplers and carbodiimide hardening agents is also disclosed.
- the emulsions of the invention can be used in photographic elements in layers containing high-speed chemically sensitized and spectrally sensitized silver halide emulsions, anti-foggants, coating aids, plasticizers, conventional hardeners and the like, such as described in Dunn U.S. Pat. 3,297,446 (columns 4-9).
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Description
DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16. 1969, 869 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Ofiice makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED SEPTEMBER 29, 1970 T878,013 CARBODIIMIDE HARDENERS IN INCORPORATED COUPLER EMULSIONS Edwin Nicholai Oftedahl and Mary Katherine DeSeyn, both of Kodak Park Division, Rochester, N.Y. 14650 Filed Feb. 24, 1969, Ser. No. 801,772 Int. Cl. G03c 1/40 US. Cl. 96-100 No Drawing. 10 Pages Specification Photographic silver halide emulsions containing an incorporated pyrazolone magenta dye-forming coupler can be hardened with an incorporated carbodiimide hardener. Photographic elements comprising such emulsions, when exposed and processed, produce prints having low stain and high maximum density. Carbodiimide hardening agents including those described in Sheehan US. Pat. 2,938,892 issued May 31, 1960, Sheehan US. Pat. 3,135,- 748 issued June 2, 1964, and Brunken German Pat. 7218 issued May 10, 1954, can be used. Suitable carbodiimide hardening agents can be represented by the formula where each of R and R is an organic radical such as alkyl, alkoxy, allyl, aryl or heterocyclic groups. Typical examples of suitable carbodiimide hardening agents which are incorporated in the photographic materials described herein are 1,3-dimethylcarbodiimide, 1-methyl-3-methoxymethylcarbodiimide, dicyclohexylcarbodiimide and l-ethyl-3-[3-dirnethylaminopropyl] carbodiimide hydrochloride.
A process for preparing the aforementioned photographic silver halide materials from coating compositions comprising incorporated pyrazolone magenta dye-forming couplers and carbodiimide hardening agents is also disclosed.
The emulsions of the invention can be used in photographic elements in layers containing high-speed chemically sensitized and spectrally sensitized silver halide emulsions, anti-foggants, coating aids, plasticizers, conventional hardeners and the like, such as described in Dunn U.S. Pat. 3,297,446 (columns 4-9).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80177269A | 1969-02-24 | 1969-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST878013I4 true UST878013I4 (en) | 1970-09-29 |
Family
ID=25182000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US878013D Pending UST878013I4 (en) | 1969-02-24 | 1969-02-24 | Defensive publication |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | UST878013I4 (en) |
| FR (1) | FR2032350A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2517408A1 (en) * | 1975-04-19 | 1976-11-04 | Agfa Gevaert Ag | PROCESS FOR THE PRODUCTION OF COLOR PHOTOGRAPHIC SILVER HOLGENIDE EMULSION LAYERS, PROCESSABLE AT INCREASED TEMPERATURES |
| DE2539729A1 (en) * | 1975-09-06 | 1977-03-17 | Agfa Gevaert Ag | COLOR PHOTOGRAPHIC MATERIAL |
-
1969
- 1969-02-24 US US878013D patent/UST878013I4/en active Pending
- 1969-08-27 FR FR6929335A patent/FR2032350A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2032350A1 (en) | 1970-11-27 |
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