NL245302A - - Google Patents
Info
- Publication number
- NL245302A NL245302A NL245302DA NL245302A NL 245302 A NL245302 A NL 245302A NL 245302D A NL245302D A NL 245302DA NL 245302 A NL245302 A NL 245302A
- Authority
- NL
- Netherlands
Links
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
- G03C1/485—Direct positive emulsions
- G03C1/48515—Direct positive emulsions prefogged
- G03C1/48523—Direct positive emulsions prefogged characterised by the desensitiser
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/06—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
- C07D213/16—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom containing only one pyridine ring
- C07D213/20—Quaternary compounds thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Pyridine Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB36397/58A GB871938A (en) | 1958-11-12 | 1958-11-12 | Improvements in or relating to direct positive emulsions |
GB196059 | 1959-01-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL245302A true NL245302A (zh) |
Family
ID=26237104
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL127363D NL127363C (zh) | 1958-11-12 | ||
NL245302D NL245302A (zh) | 1958-11-12 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL127363D NL127363C (zh) | 1958-11-12 |
Country Status (3)
Country | Link |
---|---|
US (1) | US3035917A (zh) |
GB (1) | GB871938A (zh) |
NL (2) | NL245302A (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL120472C (zh) * | 1961-03-10 | |||
US3330655A (en) * | 1963-09-20 | 1967-07-11 | Eastman Kodak Co | Preparation of photographic direct positive color images |
US3314790A (en) * | 1963-09-23 | 1967-04-18 | Eastman Kodak Co | Desensitizer for exposed silver halide emulsions |
US3326687A (en) * | 1964-11-10 | 1967-06-20 | Eastman Kodak Co | Photographic colloid transfer system |
BE743560A (fr) * | 1969-01-25 | 1970-05-28 | Fuji Photo Film Co Ltd | Eléments photographiques photosensibles positifs directs aux halogénures d'argent |
GB1339764A (en) * | 1971-03-29 | 1973-12-05 | Ici Ltd | Pyridine derivatives |
JPS5647544B2 (zh) * | 1973-03-27 | 1981-11-10 | ||
US4539291A (en) * | 1982-12-24 | 1985-09-03 | Fuji Photo Film Co., Ltd. | Direct positive silver halide photographic materials |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1623499A (en) * | 1925-06-16 | 1927-04-05 | A corpora | |
GB495197A (en) * | 1937-05-08 | 1938-11-08 | John David Kendall | Improvements in and relating to the use and production of photographic desensitising compounds |
-
0
- NL NL127363D patent/NL127363C/xx active
- NL NL245302D patent/NL245302A/xx unknown
-
1958
- 1958-11-12 GB GB36397/58A patent/GB871938A/en not_active Expired
-
1959
- 1959-11-04 US US850752A patent/US3035917A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB871938A (en) | 1961-07-05 |
NL127363C (zh) | |
US3035917A (en) | 1962-05-22 |