GB1307314A - Heat developable diazotype copying materials - Google Patents

Heat developable diazotype copying materials

Info

Publication number
GB1307314A
GB1307314A GB1822670A GB1822670A GB1307314A GB 1307314 A GB1307314 A GB 1307314A GB 1822670 A GB1822670 A GB 1822670A GB 1822670 A GB1822670 A GB 1822670A GB 1307314 A GB1307314 A GB 1307314A
Authority
GB
United Kingdom
Prior art keywords
atoms
alkyl
hydrogen
carbon atoms
formula
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
GB1822670A
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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
Priority claimed from JP1747570A external-priority patent/JPS4917291B1/ja
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of GB1307314A publication Critical patent/GB1307314A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/52Compositions containing diazo compounds as photosensitive substances
    • G03C1/58Coupling substances therefor
    • G03C1/585Precursors

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)
  • Heat Sensitive Colour Forming Recording (AREA)
GB1822670A 1969-06-07 1970-04-16 Heat developable diazotype copying materials Expired GB1307314A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4474569 1969-06-07
JP1747570A JPS4917291B1 (enExample) 1970-02-28 1970-02-28

Publications (1)

Publication Number Publication Date
GB1307314A true GB1307314A (en) 1973-02-21

Family

ID=26353997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1822670A Expired GB1307314A (en) 1969-06-07 1970-04-16 Heat developable diazotype copying materials

Country Status (5)

Country Link
US (1) US3695885A (enExample)
DE (1) DE2018908C3 (enExample)
FR (1) FR2056231A5 (enExample)
GB (1) GB1307314A (enExample)
NL (1) NL7006018A (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1119873A (en) * 1976-10-22 1982-03-16 Scott Paper Company Diazo composition containing an azo coupling component precursor, a light sensitive acid progenitor and a carboxylic anhydride
EP0023673B1 (en) * 1979-08-03 1985-10-23 Kabushiki Kaisha Toshiba Device for performing a heat-sensitive recording, heat-sensitive recording sheet, and a method for performing a heat-sensitive recording
US4252884A (en) * 1979-08-14 1981-02-24 James River Graphics, Inc. Negative-working diazotype photoreproduction
FR2495343B1 (fr) * 1980-12-02 1987-02-20 Regma Materiaux diazotypes thermodeveloppables contenant un precurseur d'activateur liberant lors du chauffage une base forte. procede de diazotypie mettant en oeuvre ces materiaux
JPS57125092A (en) * 1981-01-28 1982-08-04 Ricoh Co Ltd Diazonium series heat sensitive recording material
JPS60132789A (ja) * 1983-12-22 1985-07-15 Ricoh Co Ltd ジアゾ系感熱記録材料

Also Published As

Publication number Publication date
DE2018908A1 (de) 1970-12-17
FR2056231A5 (enExample) 1971-05-14
NL7006018A (enExample) 1970-12-09
US3695885A (en) 1972-10-03
DE2018908C3 (de) 1975-10-16
DE2018908B2 (de) 1975-03-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees
PCNP Patent ceased through non-payment of renewal fee