GB1346996A – Development of photographic silver halide material
– Google Patents
GB1346996A – Development of photographic silver halide material
– Google Patents
Development of photographic silver halide material
Info
Publication number
GB1346996A
GB1346996A
GB2840370A
GB1346996DA
GB1346996A
GB 1346996 A
GB1346996 A
GB 1346996A
GB 2840370 A
GB2840370 A
GB 2840370A
GB 1346996D A
GB1346996D A
GB 1346996DA
GB 1346996 A
GB1346996 A
GB 1346996A
Authority
GB
United Kingdom
Prior art keywords
group
silver halide
stands
formula
emulsion layer
Prior art date
1970-06-11
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
GB2840370A
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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.)
1970-06-11
Filing date
1970-06-11
Publication date
1974-02-13
1970-06-11
Application filed by Agfa Gevaert AG
filed
Critical
Agfa Gevaert AG
1974-02-13
Publication of GB1346996A
publication
Critical
patent/GB1346996A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
G03C1/043—Polyalkylene oxides; Polyalkylene sulfides; Polyalkylene selenides; Polyalkylene tellurides
C—CHEMISTRY; METALLURGY
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
C08G59/62—Alcohols or phenols
Abstract
1346996 Developing photographic silver halide materials AGFA-GEVAERT 10 May 1971 [11 June 1970] 28403/70 Heading G2C [Also in Division C3] In a process for developing an exposed lightsensitive silver halide photographic material the development is carried out in the presence of a water-soluble compound obtained by reaction of a bisepoxide of the formula:- wherein: Z stands for oxygen or the group-O-Y-O- wherein Y is a straight or branched-chain alkylene group having from 2 to 8 C-atoms; with a monoalkyl or a monoaryl ether of ethylene glycol or of a polyoxyethylene glycol, the hydrogen atoms of the hydroxyl groups in the reaction product being optionally wholly or partly substituted. The water soluble compound may correspond to the formula:- wherein: Z has the same significance as in the first formula, R stands for alkyl or aryl, n stands for an integer from 1 to 20 and R 1 stands for hydrogen, an alkyl group, a substituted alkyl group, a -COR 2 group, a -CONHR 2 group or a -SO 2 R 2 group wherein R 2 stands for a monovalent saturated or unsaturated aliphatic group, a -COCH=CH-COOH group or its bisulphite addition product, an aryl group or a heterocyclic group or one of such groups carrying one or more substituents. The compound may be contained in a developer bath or can be added to the coating composition of a silver halide emulsion layer and/or incorporated into a waterpermeable layer which when coated under or on top of the emulsion layer forms a water-permeable system with the silver halide emulsion layer and is then in effective contact with the silver halide.
GB2840370A
1970-06-11
1970-06-11
Development of photographic silver halide material
Expired
GB1346996A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB2840370
1970-06-11
Publications (1)
Publication Number
Publication Date
GB1346996A
true
GB1346996A
(en)
1974-02-13
Family
ID=10275073
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB2840370A
Expired
GB1346996A
(en)
1970-06-11
1970-06-11
Development of photographic silver halide material
Country Status (6)
Country
Link
US
(1)
US3749574A
(en)
BE
(1)
BE768365A
(en)
CA
(1)
CA989869A
(en)
DE
(1)
DE2128951A1
(en)
FR
(1)
FR2096095A5
(en)
GB
(1)
GB1346996A
(en)
Families Citing this family (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS551572B2
(en)
*
1972-12-21
1980-01-16
US4017314A
(en)
*
1976-01-07
1977-04-12
E. I. Du Pont De Nemours And Company
Use of crown compounds (cyclic polyethers) in litho developers to improve halftone dot quality and gradation
JPS5344025A
(en)
*
1976-08-27
1978-04-20
Fuji Photo Film Co Ltd
Image formation method
1970
1970-06-11
GB
GB2840370A
patent/GB1346996A/en
not_active
Expired
1971
1971-05-17
US
US00144235A
patent/US3749574A/en
not_active
Expired – Lifetime
1971-05-25
CA
CA113,824A
patent/CA989869A/en
not_active
Expired
1971-06-08
FR
FR7120823A
patent/FR2096095A5/fr
not_active
Expired
1971-06-11
DE
DE19712128951
patent/DE2128951A1/en
active
Pending
1971-06-11
BE
BE768365A
patent/BE768365A/en
unknown
Also Published As
Publication number
Publication date
US3749574A
(en)
1973-07-31
BE768365A
(en)
1971-12-13
DE2128951A1
(en)
1971-12-16
CA989869A
(en)
1976-05-25
FR2096095A5
(en)
1972-02-11
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Legal Events
Date
Code
Title
Description
1974-07-03
PS
Patent sealed [section 19, patents act 1949]
1976-03-17
435
Patent endorsed ‘licences of right’ on the date specified (sect. 35/1949)
1978-12-13
PCNP
Patent ceased through non-payment of renewal fee
