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GB740565A - Improvements in or relating to light-sensitive diazonium compounds for use in diazotype printing - Google Patents

Improvements in or relating to light-sensitive diazonium compounds for use in diazotype printing

Info

Publication number
GB740565A
GB740565A GB934553A GB934553A GB740565A GB 740565 A GB740565 A GB 740565A GB 934553 A GB934553 A GB 934553A GB 934553 A GB934553 A GB 934553A GB 740565 A GB740565 A GB 740565A
Authority
GB
United Kingdom
Prior art keywords
relating
light
diazonium compounds
sensitive diazonium
refluxing
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
GB934553A
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.)
EN Mason and Sons Ltd
Original Assignee
EN Mason and Sons Ltd
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 EN Mason and Sons Ltd filed Critical EN Mason and Sons Ltd
Priority to GB934553A priority Critical patent/GB740565A/en
Publication of GB740565A publication Critical patent/GB740565A/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
    • G03C1/54—Diazonium salts or diazo anhydrides

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)

Abstract

1:5 - Bis - (21:51 - diethoxy - 41 - aminophenyl)-mercaptopentane is prepared by reducing with iron and hydrochloric acid an aqueousethanol suspension of 1:5-bis-(21:51-diethoxy-41-nitrophenyl) -mercaptopentane, itself prepared by refluxing together pentamethylene dibromide and thiourea in ethanol, adding 1-nitro-4-bromo-2:5-diethoxybenzene and continuing refluxing, adding an ethanol solution of potassium hydroxide, and continuing refluxing.
GB934553A 1953-04-07 1953-04-07 Improvements in or relating to light-sensitive diazonium compounds for use in diazotype printing Expired GB740565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB934553A GB740565A (en) 1953-04-07 1953-04-07 Improvements in or relating to light-sensitive diazonium compounds for use in diazotype printing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB934553A GB740565A (en) 1953-04-07 1953-04-07 Improvements in or relating to light-sensitive diazonium compounds for use in diazotype printing

Publications (1)

Publication Number Publication Date
GB740565A true GB740565A (en) 1955-11-16

Family

ID=9870160

Family Applications (1)

Application Number Title Priority Date Filing Date
GB934553A Expired GB740565A (en) 1953-04-07 1953-04-07 Improvements in or relating to light-sensitive diazonium compounds for use in diazotype printing

Country Status (1)

Country Link
GB (1) GB740565A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459550A (en) * 1965-06-19 1969-08-05 Keuffel & Esser Co Diazotype material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459550A (en) * 1965-06-19 1969-08-05 Keuffel & Esser Co Diazotype material

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