GB1378354A - Amino acids and their use in photographic materials - Google Patents

Amino acids and their use in photographic materials

Info

Publication number
GB1378354A
GB1378354A GB3248872A GB3248872A GB1378354A GB 1378354 A GB1378354 A GB 1378354A GB 3248872 A GB3248872 A GB 3248872A GB 3248872 A GB3248872 A GB 3248872A GB 1378354 A GB1378354 A GB 1378354A
Authority
GB
United Kingdom
Prior art keywords
formula
amino acids
photographic materials
july
alkyl group
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
GB3248872A
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.)
Ilford Imaging UK Ltd
Original Assignee
Ilford 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 Ilford Ltd filed Critical Ilford Ltd
Priority to GB3248872A priority Critical patent/GB1378354A/en
Publication of GB1378354A publication Critical patent/GB1378354A/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
    • G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
    • G03C1/346—Organic derivatives of bivalent sulfur, selenium or tellurium

Abstract

1378354 Amino acids ILFORD Ltd 12 July 1973 [12 July 1972] 32488/72 Heading C2C [Also in Division G2] New compounds which reduce latent image regression in silver halide emulsions have the formula wherein R 1 is a C 1-4 alkyl group and R 2 is a group of formula wherein R 3 and R 4 are hydrogen atoms or C 1-4 alkyl group, X is an anion and x is 0 or 1. The compounds are made by reacting a tertiary amine of formula where A is a halogen atom with a compound of formula in an aqueous alkaline medium.
GB3248872A 1973-07-12 1973-07-12 Amino acids and their use in photographic materials Expired GB1378354A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3248872A GB1378354A (en) 1973-07-12 1973-07-12 Amino acids and their use in photographic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3248872A GB1378354A (en) 1973-07-12 1973-07-12 Amino acids and their use in photographic materials

Publications (1)

Publication Number Publication Date
GB1378354A true GB1378354A (en) 1974-12-27

Family

ID=10339363

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3248872A Expired GB1378354A (en) 1973-07-12 1973-07-12 Amino acids and their use in photographic materials

Country Status (1)

Country Link
GB (1) GB1378354A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2307292A1 (en) * 1975-04-09 1976-11-05 Agfa Gevaert PRODUCTION OF PHOTOGRAPHIC SILVER HALOGENIDE EMULSIONS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2307292A1 (en) * 1975-04-09 1976-11-05 Agfa Gevaert PRODUCTION OF PHOTOGRAPHIC SILVER HALOGENIDE EMULSIONS

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees