BE543288A - - Google Patents

Info

Publication number: BE543288A
Authority: BE; Belgium

Application number

Priority date (The priority date 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 date listed.)

1954-12-10

Publication of BE543288A publication Critical patent/BE543288A/xx

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
- 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

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)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Silver Salt Photography Or Processing Solution Therefor (AREA)

BE543288D 1954-12-10 BE543288A (ro)

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 (ro)

Family

ID=10381638

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE543288D BE543288A (ro)	1954-12-10

Country Status (5)

Country	Link
US (1)	US2901351A (ro)
BE (1)	BE543288A (ro)
DE (1)	DE1019171B (ro)
FR (1)	FR1136718A (ro)
GB (1)	GB796873A (ro)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE576568A (ro) *	1958-03-11
BE608384A (ro) *	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
GB1260710A (en) *	1968-07-23	1972-01-19	Fuji Photo Film Co Ltd	Developing photographic silver halide light-sensitive elements
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 (ro) *	1972-12-19	1974-08-14

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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 FR FR1136718D patent/FR1136718A/fr not_active Expired
- 1955-12-09 DE DEG18553A patent/DE1019171B/de active Pending

Also Published As

Publication number	Publication date
US2901351A (en)	1959-08-25
DE1019171B (de)	1957-11-07
FR1136718A (fr)	1957-05-17
GB796873A (en)	1958-06-18

Publication	Publication Date	Title
AT191484B (ro)
AT192924B (ro)
AT195977B (ro)	1958-02-25
AT195459B (ro)	1958-02-10
AT192363B (ro)	1957-10-10
AT196304B (ro)	1958-03-10
AT189950B (ro)	1957-05-25
AT195836B (ro)	1958-02-25
AT197898B (ro)	1958-05-27
AT190491B (ro)	1957-07-10
AT192359B (ro)	1957-10-10
AT196486B (ro)	1958-03-25
JPS312881B1 (ro)	1956-04-17
AT194891B (ro)	1958-01-25
AT196650B (ro)	1958-03-25
AT196970B (ro)	1958-04-10
AT196784B (ro)	1958-03-25
AT193927B (ro)	1957-12-10
AT194354B (ro)	1958-01-10
AT194415B (ro)	1958-01-10
AT194476B (ro)	1958-01-10
AT194723B (ro)	1958-01-10
AT194735B (ro)	1958-01-10
AT197095B (ro)	1958-04-10
AT196701B (ro)	1958-03-25