GB1264531A - - Google Patents

Info

Publication number
GB1264531A
GB1264531A GB1264531DA GB1264531A GB 1264531 A GB1264531 A GB 1264531A GB 1264531D A GB1264531D A GB 1264531DA GB 1264531 A GB1264531 A GB 1264531A
Authority
GB
United Kingdom
Prior art keywords
silver
light
sensitive
halide
heat
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
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 filed Critical
Publication of GB1264531A publication Critical patent/GB1264531A/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
    • G03C1/494Silver salt compositions other than silver halide emulsions; Photothermographic systems ; Thermographic systems using noble metal compounds
    • G03C1/498Photothermographic systems, e.g. dry silver

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)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

1,264,531. Light-sensitive, heat-developable photographic materials. MINNESOTA MINING & MFG. CO. Feb.27, 1969 [Feb. 28, 1968], No.10520/69. Heading G2C. A direct positive, light-sensitive, heatdevelopable material contains an organic silver salt, such as silver behenate, a mixture of silver behenate and behenic acid, silver stearate or silver myristate; a reducing agent for silver ions, such as α, α<SP>1</SP>-(3:5-di-t-butyl-4-hydroxyphenyl) dimethyl ether or 2, 21 -methylene bis (4-methyl- 6-t-butylphenol); a photo-sensitive silver halide which produces a catalyst on light exposure to accelerate the reaction between the silver salt and the reducing agent; and a source of mercuric ions in an amount sufficient to impart a negative slope to the D log E curve. Phthalazinone is also preferably present. The mercuric ion may be supplied in the form of a halide which will react with the organic silver salt to form the photosensitive silver halide in situ. Sensitizing dyes may be present. On exposure to a light image followed by heat development using the minimum heat to produce maximum useful density in the unexposed areas, a positive image is obtained.
GB1264531D 1968-02-28 1969-02-27 Expired GB1264531A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70898868A 1968-02-28 1968-02-28

Publications (1)

Publication Number Publication Date
GB1264531A true GB1264531A (en) 1972-02-23

Family

ID=24848014

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1264531D Expired GB1264531A (en) 1968-02-28 1969-02-27

Country Status (11)

Country Link
US (1) US3589901A (en)
JP (1) JPS4949498B1 (en)
AT (1) AT290983B (en)
BE (1) BE729042A (en)
BR (1) BR6906697D0 (en)
DE (1) DE1908758A1 (en)
DK (1) DK133523B (en)
ES (1) ES363774A1 (en)
FR (1) FR2002788A1 (en)
GB (1) GB1264531A (en)
SE (1) SE356832B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE790370A (en) * 1971-10-22 1973-04-20 Minnesota Mining & Mfg LIGHT-STABLE SHEET FOR RECORDING BRIGHT IMAGES
JPS495020A (en) * 1972-04-26 1974-01-17
US4038083A (en) * 1972-04-27 1977-07-26 Agfa-Gevaert N.V. Photothermographic recording sheet
DE2220597C3 (en) * 1972-04-27 1981-12-10 Agfa-Gevaert Ag, 5090 Leverkusen Thermophotographic recording material
US4108665A (en) * 1976-10-07 1978-08-22 Minnesota Mining And Manufacturing Company Stabilizers for photothermographic constructions
US4124387A (en) * 1977-07-11 1978-11-07 Eastman Kodak Company Positive images in photothermographic materials containing nitroxyl compounds
JPS5827425U (en) * 1981-08-19 1983-02-22 東洋化学株式会社 Shape material for mounting the lighting dome
JPS58222597A (en) * 1982-06-18 1983-12-24 松下電工株式会社 Cord bushing
GB9121789D0 (en) * 1991-10-14 1991-11-27 Minnesota Mining & Mfg Positive-acting photothermographic materials
US20080057450A1 (en) * 2006-08-21 2008-03-06 Eastman Kodak Company Thermally developable materials containing reducing agent combinations

Also Published As

Publication number Publication date
DE1908758A1 (en) 1969-09-18
SE356832B (en) 1973-06-04
ES363774A1 (en) 1971-05-01
BR6906697D0 (en) 1973-01-11
FR2002788A1 (en) 1969-10-31
JPS4949498B1 (en) 1974-12-27
DK133523B (en) 1976-05-31
AT290983B (en) 1971-06-25
DK133523C (en) 1976-10-25
BE729042A (en) 1969-08-27
US3589901A (en) 1971-06-29

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Legal Events

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