US1816989A - Light-sensitive layer - Google Patents

Light-sensitive layer Download PDF

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Publication number
US1816989A
US1816989A US438648A US43864830A US1816989A US 1816989 A US1816989 A US 1816989A US 438648 A US438648 A US 438648A US 43864830 A US43864830 A US 43864830A US 1816989 A US1816989 A US 1816989A
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US
United States
Prior art keywords
light
parts
aryl
diazo
residue
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 - Lifetime
Application number
US438648A
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English (en)
Inventor
Schmidt Maximilian Paul
Neugebauer Wilhelm
Franke Robert
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.)
Kalle GmbH and Co KG
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Kalle GmbH and Co KG
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
Application filed by Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
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Publication of US1816989A publication Critical patent/US1816989A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G03C1/52—Compositions containing diazo compounds as photosensitive substances
    • G03C1/54—Diazonium salts or diazo anhydrides

Definitions

  • the present invention relates to lightsensitive layers on a suitable base containing diazo compounds of aromatic aminoacylamines, more particularly the diazo 5 compound from l-amino-2.5-diethoxy-4-benzoylaminobenzene.
  • diazo com ounds are suitable for the preparation of photographic pictures.
  • light-sensitive layers are used which contain the diazo component as well as the azo component.
  • the latter process has the advantage that the copies can be developed in a dry manner (by means-of ammonia gas), so that pictures of a right measure are formed.
  • the first process is quite different, or when treating with the solution of the azo component the lines very easily rum-which, however, can be more or less avoided by addition of salts.
  • diazo compounds are particu- 30 larly well suitable which contain in the aromatic nucleus besides the diazo group also an acylamino-gr'oup; it is of no consequence whether the diazo compound is applied together with the azo component and then developedv with an alkaline bath, or whether the diazo compound is applied alone and developed after the exposure to light with an alkaline solution which simultaneously contains an azo component.
  • 40 compounds have not only a very good sta- I bility and sensitiveness to light, but they yield dyestufiictures which are especially fast to light.
  • acyl residue may for instance be an acetyl grou a benzoyl group I or a naphthoyl group. we amino groups thiourea are suitable.
  • borax instead of grams of borax there can be used other .alkalies, for instance a mixture of 25 grams of borax, 15 grams of disodium l0 moist manner.
  • X stands for a diazonium residue
  • Ar for an aryl residue substituted or not
  • Y for hydro en, alkyl, aryl or aralkyl
  • X stands for a diazonium residue, Ar for an aryl residue substituted or not and R for alkyl or aryl.
  • X stands for a diazonium residue
  • Ar for an aryl residue substituted by ethoxy groups
  • R for alkyl or aryl.
  • MAXIMILIAN PAUL SCHMIDT WILHELM N EUGEBAUER. ROBERT FRANKE.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
US438648A 1929-03-30 1930-03-24 Light-sensitive layer Expired - Lifetime US1816989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK0114139 1929-03-30

Publications (1)

Publication Number Publication Date
US1816989A true US1816989A (en) 1931-08-04

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ID=7242946

Family Applications (1)

Application Number Title Priority Date Filing Date
US438648A Expired - Lifetime US1816989A (en) 1929-03-30 1930-03-24 Light-sensitive layer

Country Status (5)

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US (1) US1816989A (en))
BE (1) BE369000A (en))
ES (1) ES117245A1 (en))
FR (1) FR693032A (en))
GB (1) GB347430A (en))

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456514A (en) * 1945-09-07 1948-12-14 Bruning Charles Co Inc Diazotype light-sensitive materials
US2487034A (en) * 1946-03-20 1949-11-01 Gen Aniline & Film Corp 2.8-dihydroxynaphthalene-6-sulfonic acid as the azo component for diazotype prints
US2537919A (en) * 1948-05-05 1951-01-09 Gen Aniline & Film Corp Diazotype layer containing three coupling components for neutral black shades
US2657141A (en) * 1947-07-14 1953-10-27 Grinten Chem L V D Diazotype developer composition containing a potassium borate and process of using same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456514A (en) * 1945-09-07 1948-12-14 Bruning Charles Co Inc Diazotype light-sensitive materials
US2487034A (en) * 1946-03-20 1949-11-01 Gen Aniline & Film Corp 2.8-dihydroxynaphthalene-6-sulfonic acid as the azo component for diazotype prints
US2657141A (en) * 1947-07-14 1953-10-27 Grinten Chem L V D Diazotype developer composition containing a potassium borate and process of using same
US2537919A (en) * 1948-05-05 1951-01-09 Gen Aniline & Film Corp Diazotype layer containing three coupling components for neutral black shades

Also Published As

Publication number Publication date
FR693032A (fr) 1930-11-14
BE369000A (en))
ES117245A1 (es) 1930-04-16
GB347430A (en)) 1931-04-30

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