DE467818C - Photographic developer - Google Patents

Photographic developer

Info

Publication number
DE467818C
DE467818C DEI32719D DEI0032719D DE467818C DE 467818 C DE467818 C DE 467818C DE I32719 D DEI32719 D DE I32719D DE I0032719 D DEI0032719 D DE I0032719D DE 467818 C DE467818 C DE 467818C
Authority
DE
Germany
Prior art keywords
oxybenzene
photographic developer
developer
water
amino
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
Application number
DEI32719D
Other languages
German (de)
Inventor
Dr Werner Mueller
Dr Gustav Reddelien
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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.)
Filing date
Publication date
Priority to BE352439D priority Critical patent/BE352439A/xx
Priority claimed from DEI29537D external-priority patent/DE454839C/en
Priority claimed from DEI31254D external-priority patent/DE486772C/en
Priority claimed from DEI31951D external-priority patent/DE465902C/en
Priority claimed from DEI32645D external-priority patent/DE487788C/en
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI32719D priority patent/DE467818C/en
Priority to FR35793D priority patent/FR35793E/en
Priority to US309687A priority patent/US1799568A/en
Publication of DE467818C publication Critical patent/DE467818C/en
Application granted granted Critical
Priority to GB3422828A priority patent/GB300970A/en
Priority to DEI39068D priority patent/DE507022C/en
Priority to FR38219D priority patent/FR38219E/en
Expired legal-status Critical Current

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
    • G03C5/3021—Developers with oxydisable hydroxyl or amine groups linked to an aromatic ring

Description

Photographische Entwickler Durch das Hauptpatent 454 839 ist die Verwendung neuer photographischer Entwickler unter Schutz gestellt worden, die als wirksamen Bestandteil die N-Oxyäthylderivate des 4-Amino-i-oxybenzols enthalten. Sie besitzen den Vorzug sehr guter Haltbarkeit in festem und gelöstem Zustande, bemerkenswerte Löslichkeit und die besondere Eigenschaft, das latente photographische Bild in halogensilberhaltigen Schichten selbst in kaliumbromidfreien Lösungen ohne Schleierbildung zu entwickeln.Photographic developers The main patent 454 839 has protected the use of new photographic developers which contain the N-oxyethyl derivatives of 4-amino-i-oxybenzene as an active ingredient. They have the advantage of very good durability in the solid and dissolved state, remarkable solubility and the special property of developing the latent photographic image in layers containing halide silver without forming fog even in solutions free of potassium bromide.

Die hervorgehobenen, bisher mit einheitlichen Verbindungen nicht erreichbaren Vorteile besitzen nun auch, wie weiter gefunden wurde, die N-Monooxyäthylderivate von kernsubstitutionsprodukten und Homologen des 4#Amino-i-oxybenzols, sofern sie keine Nitrogruppen. enthalten.The highlighted ones, previously not accessible with uniform connections As was further found, the N-monooxyethyl derivatives now also have advantages of nuclear substitution products and homologues of 4 # amino-i-oxybenzene, provided they no nitro groups. contain.

Beispiel i Ein sehr brauchbarer Entwickler hat folgende Zusammensetzung: l,17 g Sulfat des 4-Oxyäthylamino - z - chlor - i - oxybenzols, 9 g Natriumsulfit krist., 5 g Kaliumcarbonat,. zoo g Wasser. Der neue Entwickler zeigt ähnliche gute Eigenschaften wie die nach dem Hauptpatent erhältlichen. Beispiel a Ein Entwickler von fast gleicher Wirksamkeit hat folgende Zusammensetzung: i g O.Yalat des 4-Oxyäthylamino-3-methyl-i-oxyhenzols, 3 g Natriumsulfit krist., 3 g Kaliumcarbonat, zoo g Wasser.Example i A very useful developer has the following composition: l, 17 g sulfate of 4-oxyäthylamino - z - chloro - i - oxybenzene, 9 g sodium sulfite crystall., 5 g potassium carbonate ,. zoo g of water. The new developer shows similar good ones Properties like those available according to the main patent. Example a A developer of almost the same effectiveness has the following composition: i g O.Yalat des 4-Oxyäthylamino-3-methyl-i-oxyhenzols, 3 g of crystalline sodium sulfite, 3 g of potassium carbonate, zoo g of water.

Beispiel 3 Ein anderer Entwickler, der sehr ähnlich dem bekannten 4-Amino-i-oxybenzol wirkt, wird folgendermaßen dargestellt: LösungA: 3,65 g 4-Oxyäthylamino-i-oxybenzol-a-carbon säure, 5 g Natriumsulfit krist., Zoo g Wasser. Lösung B : i o g Kaliumhydroxy d., 5oo g Wasser. Zum Gebrauch werden i Teil A, i Teil B und i Teil Wasser miteinander vermischt.Example 3 Another developer who is very similar to the known one 4-Amino-i-oxybenzene has the following effect: Solution A: 3.65 g of 4-oxyethylamino-i-oxybenzene-a-carbon acid, 5 g sodium sulfite crystalline, zoo g water. Solution B: i o g potassium hydroxide d., 500 g of water. For use i part A, i part B and i part water together mixed.

Claims (1)

PATENTANSPRUCH: Photographische Entwickler nach Patent 454 839, dadurch gekennzeichnet, daß die N-I#Ionooxyäthylderivate der Kernsubstitutionsprodukte und Homologen des 4-Amino-i-oxybenzols, sofern sie keine Nitrogruppen enthalten, verwendet werden.PATENT CLAIM: Photographic developer according to Patent 454 839, characterized in that the NI # ionooxyethyl derivatives of the core substitution products and homologues of 4-amino-i-oxybenzene are used, provided they do not contain any nitro groups.
DEI32719D 1926-11-19 1927-11-21 Photographic developer Expired DE467818C (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE352439D BE352439A (en) 1926-11-19
DEI32719D DE467818C (en) 1926-11-19 1927-11-21 Photographic developer
FR35793D FR35793E (en) 1926-11-19 1928-08-10 Photographic developers
US309687A US1799568A (en) 1927-11-21 1928-10-01 Photographic developer and process of developing photographic materials
GB3422828A GB300970A (en) 1926-11-19 1928-11-21
DEI39068D DE507022C (en) 1926-11-19 1929-08-19 Photographic developer
FR38219D FR38219E (en) 1926-11-19 1930-04-10 Photographic developers

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DEI29537D DE454839C (en) 1926-11-19 1926-11-19 Photographic developer
DEI31254D DE486772C (en) 1926-11-19 1927-05-23 Process for the preparation of the N-oxyaethyl derivatives of 4-amino-1-oxybenzene
DEI31951D DE465902C (en) 1926-11-19 1927-08-18 Photographic developer
DEI32645D DE487788C (en) 1926-11-19 1927-11-12 Process for the preparation of the N-oxyaethyl derivatives of nuclear substitution products and homologues of 4-amino-1-oxybenzene
DEI32719D DE467818C (en) 1926-11-19 1927-11-21 Photographic developer

Publications (1)

Publication Number Publication Date
DE467818C true DE467818C (en) 1928-11-01

Family

ID=31950805

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI32719D Expired DE467818C (en) 1926-11-19 1927-11-21 Photographic developer

Country Status (3)

Country Link
BE (1) BE352439A (en)
DE (1) DE467818C (en)
FR (1) FR35793E (en)

Also Published As

Publication number Publication date
BE352439A (en)
FR35793E (en) 1930-03-27

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