BE543288A - - Google Patents
Info
- Publication number
- BE543288A BE543288A BE543288DA BE543288A BE 543288 A BE543288 A BE 543288A BE 543288D A BE543288D A BE 543288DA BE 543288 A BE543288 A BE 543288A
- Authority
- BE
- Belgium
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/20—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
- C07D239/22—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with hetero atoms directly attached to ring carbon atoms
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- 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
- G03C1/48592—Positive image obtained by various effects other than photohole bleaching or internal image desensitisation, e.g. Sabatier, Clayden effect
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB35797/54A GB796873A (en) | 1954-12-10 | 1954-12-10 | Improvements in or relating to photographic emulsions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE543288A true BE543288A (xx) |
Family
ID=10381638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE543288D BE543288A (xx) | 1954-12-10 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2901351A (xx) |
| BE (1) | BE543288A (xx) |
| DE (1) | DE1019171B (xx) |
| FR (1) | FR1136718A (xx) |
| GB (1) | GB796873A (xx) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE576568A (xx) * | 1958-03-11 | |||
| BE608384A (xx) * | 1960-09-24 | |||
| US3148066A (en) * | 1961-06-29 | 1964-09-08 | Eastman Kodak Co | Nitramino and nitrosamino compounds as antifoggants for photographic emulsions |
| US3367779A (en) * | 1965-01-21 | 1968-02-06 | Fuji Photo Film Co Ltd | Direct positive silver halide photographic materials |
| US3519428A (en) * | 1965-05-21 | 1970-07-07 | Keuffel & Esser Co | Direct-positive light-sensitive photographic material |
| DE1937049A1 (de) * | 1968-07-23 | 1970-02-19 | Fuji Photo Film Co Ltd | Verfahren zur Behandlung von photographischen lichtempfindlichen Halogensilberelementen |
| GB1323111A (en) * | 1970-04-01 | 1973-07-11 | Agfa Gevaert | Photographic direct positive silver halide material |
| BE785847A (nl) * | 1971-07-30 | 1973-01-05 | Agfa Gevaert Nv | Direct-positieve zilverhalogenide-emulsies met kleurstofvormers |
| JPS4984639A (xx) * | 1972-12-19 | 1974-08-14 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB601824A (en) * | 1945-10-04 | 1948-05-13 | Elliott & Sons Ltd | Improvements in photographic light sensitive emulsions |
| DE685901C (de) * | 1935-08-31 | 1939-12-28 | I G Farbenindustrie Akt Ges | Verfahren zur Feinkornentwicklung |
| US2173628A (en) * | 1936-11-07 | 1939-09-19 | Ilford Ltd | Stabilization of photographic sensitive materials |
| GB508073A (en) * | 1937-12-22 | 1939-06-22 | John David Kendall | Improvements in or relating to the stabilisation of photographic emulsions |
| GB707704A (en) * | 1952-03-20 | 1954-04-21 | Ilford Ltd | Improvements in or relating to direct positive photographic emulsions |
-
0
- BE BE543288D patent/BE543288A/xx unknown
-
1954
- 1954-12-10 GB GB35797/54A patent/GB796873A/en not_active Expired
-
1955
- 1955-12-06 US US551458A patent/US2901351A/en not_active Expired - Lifetime
- 1955-12-09 DE DEG18553A patent/DE1019171B/de active Pending
- 1955-12-09 FR FR1136718D patent/FR1136718A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1019171B (de) | 1957-11-07 |
| US2901351A (en) | 1959-08-25 |
| FR1136718A (fr) | 1957-05-17 |
| GB796873A (en) | 1958-06-18 |