GB434761A - Improvements in or relating to the production of negative photographic prints by means of diazonium compounds - Google Patents

Improvements in or relating to the production of negative photographic prints by means of diazonium compounds

Info

Publication number
GB434761A
GB434761A GB33490/34A GB3349034A GB434761A GB 434761 A GB434761 A GB 434761A GB 33490/34 A GB33490/34 A GB 33490/34A GB 3349034 A GB3349034 A GB 3349034A GB 434761 A GB434761 A GB 434761A
Authority
GB
United Kingdom
Prior art keywords
diazonium
water vapour
layers
ironing
developed
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
GB33490/34A
Other languages
English (en)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB434761A publication Critical patent/GB434761A/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
    • G03C1/00—Photosensitive materials
    • G03C1/52—Compositions containing diazo compounds as photosensitive substances

Landscapes

  • 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)
GB33490/34A 1934-01-04 1934-11-21 Improvements in or relating to the production of negative photographic prints by means of diazonium compounds Expired GB434761A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE434761X 1934-01-04

Publications (1)

Publication Number Publication Date
GB434761A true GB434761A (en) 1935-09-09

Family

ID=6506671

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33490/34A Expired GB434761A (en) 1934-01-04 1934-11-21 Improvements in or relating to the production of negative photographic prints by means of diazonium compounds

Country Status (4)

Country Link
US (1) US2095408A (enrdf_load_stackoverflow)
BE (1) BE407031A (enrdf_load_stackoverflow)
FR (1) FR783415A (enrdf_load_stackoverflow)
GB (1) GB434761A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416021A (en) * 1944-12-29 1947-02-18 Gen Aniline & Film Corp Light sensitive diazotype compositions and process
US2542716A (en) * 1945-07-16 1951-02-20 Gen Aniline & Film Corp Multicolor diazotype layers
US2542715A (en) * 1945-07-16 1951-02-20 Gen Aniline & Film Corp Multicolor diazotype layers
NL261709A (enrdf_load_stackoverflow) * 1960-03-04
US3409455A (en) * 1965-01-04 1968-11-05 Gaf Corp Process of reproduction on benzene diazonium fluoborate sheet by heat exposure

Also Published As

Publication number Publication date
BE407031A (enrdf_load_stackoverflow)
US2095408A (en) 1937-10-12
FR783415A (fr) 1935-07-12

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