GB768071A - Photographic developer - Google Patents
Photographic developerInfo
- Publication number
- GB768071A GB768071A GB7992/55A GB799255A GB768071A GB 768071 A GB768071 A GB 768071A GB 7992/55 A GB7992/55 A GB 7992/55A GB 799255 A GB799255 A GB 799255A GB 768071 A GB768071 A GB 768071A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aminopyrazoline
- photographic developer
- prepared
- methylacetaminophenyl
- ethylaminophenyl
- 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.)
- Expired
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
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/29—Development processes or agents therefor
- G03C5/30—Developers
- G03C5/3028—Heterocyclic compounds
- G03C5/3035—Heterocyclic compounds containing a diazole ring
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/167—X-ray
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Abstract
1 - (p - Methylaminophenyl) - 3 - aminopyrazoline is prepared by refluxing 1-(p-N-methylacetaminophenyl) - 3 - aminopyrazoline with aqueous sodium hydroxide solution. 1-(p-Ethylaminophenyl) - 3 - aminopyrazoline, 1 - (p-aminophenyl) - 3 - aminopyrazoline, and 1 - (p - amino-m - methylphenyl) - 3 - aminopyrazoline are similarly prepared. Specification 679,678 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA19910A DE945606C (en) | 1954-03-18 | 1954-03-18 | Photographic developer |
Publications (1)
Publication Number | Publication Date |
---|---|
GB768071A true GB768071A (en) | 1957-02-13 |
Family
ID=6924549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7992/55A Expired GB768071A (en) | 1954-03-18 | 1955-03-18 | Photographic developer |
Country Status (6)
Country | Link |
---|---|
US (1) | US2852374A (en) |
BE (1) | BE536578A (en) |
CH (1) | CH333551A (en) |
DE (1) | DE945606C (en) |
FR (1) | FR1120915A (en) |
GB (1) | GB768071A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3295975A (en) * | 1962-09-15 | 1967-01-03 | Agfa Ag | Black-and-white developer for photographic reversal processes |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE570596A (en) * | 1957-08-26 | |||
BE598399A (en) * | 1959-12-21 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB679678A (en) * | 1950-04-06 | 1952-09-24 | Ilford Ltd | Improvements in or relating to the production of 3-amino pyrazolines |
-
0
- BE BE536578D patent/BE536578A/xx unknown
-
1954
- 1954-03-18 DE DEA19910A patent/DE945606C/en not_active Expired
-
1955
- 1955-02-15 CH CH333551D patent/CH333551A/en unknown
- 1955-03-16 US US494687A patent/US2852374A/en not_active Expired - Lifetime
- 1955-03-17 FR FR1120915D patent/FR1120915A/en not_active Expired
- 1955-03-18 GB GB7992/55A patent/GB768071A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3295975A (en) * | 1962-09-15 | 1967-01-03 | Agfa Ag | Black-and-white developer for photographic reversal processes |
Also Published As
Publication number | Publication date |
---|---|
CH333551A (en) | 1958-10-31 |
US2852374A (en) | 1958-09-16 |
FR1120915A (en) | 1956-07-17 |
BE536578A (en) | |
DE945606C (en) | 1956-07-12 |
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