GB1342149A - Sensitized silver halide phitographic emulsion - Google Patents

Sensitized silver halide phitographic emulsion

Info

Publication number
GB1342149A
GB1342149A GB5919771A GB5919771A GB1342149A GB 1342149 A GB1342149 A GB 1342149A GB 5919771 A GB5919771 A GB 5919771A GB 5919771 A GB5919771 A GB 5919771A GB 1342149 A GB1342149 A GB 1342149A
Authority
GB
United Kingdom
Prior art keywords
silver halide
phitographic
emulsion
sensitized silver
dec
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
GB5919771A
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of GB1342149A publication Critical patent/GB1342149A/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
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/09—Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising

Abstract

1342149 Photographic silver halide emulsions FUJI PHOTO FILM CO Ltd 20 Dec 1971 [21 Dec 1970] 59197/71 Heading G2C Photographic light-sensitive silver halide emulsions are chemically sensitised by a compound of The Formula: - where R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are each H or substituted or unsubstituted alkyl or aralkyl groups, or R<SP>1</SP> and R<SP>2</SP> and/or R<SP>3</SP> and R<SP>4</SP> together with the carbon atoms to which they are attached form cycloalkyl groups. The emulsions also preferably contain sodium thiosulphate and/or sodium thiosulphato-aurate.
GB5919771A 1970-12-21 1971-12-20 Sensitized silver halide phitographic emulsion Expired GB1342149A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11454470A JPS4920533B1 (en) 1970-12-21 1970-12-21

Publications (1)

Publication Number Publication Date
GB1342149A true GB1342149A (en) 1973-12-25

Family

ID=14640418

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5919771A Expired GB1342149A (en) 1970-12-21 1971-12-20 Sensitized silver halide phitographic emulsion

Country Status (3)

Country Link
JP (1) JPS4920533B1 (en)
DE (1) DE2163225A1 (en)
GB (1) GB1342149A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5716773A (en) * 1995-06-23 1998-02-10 Minnesota Mining And Manufacturing Company Alteration of image tone in black and white photographic materials

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1000763B (en) * 1973-01-29 1976-04-10 Polaroid Corp IMPROVEMENT IN PHOTOSENSITIVE EMULSIONS
JPS52141339U (en) * 1976-04-20 1977-10-26
JPS5350637U (en) * 1976-10-01 1978-04-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5716773A (en) * 1995-06-23 1998-02-10 Minnesota Mining And Manufacturing Company Alteration of image tone in black and white photographic materials

Also Published As

Publication number Publication date
JPS4920533B1 (en) 1974-05-25
DE2163225A1 (en) 1972-07-13

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee