GB1360939A

GB1360939A – Silver dye bleach process
– Google Patents

GB1360939A – Silver dye bleach process
– Google Patents
Silver dye bleach process

Info

Publication number
GB1360939A

GB1360939A
GB5290672A
GB5290672A
GB1360939A
GB 1360939 A
GB1360939 A
GB 1360939A
GB 5290672 A
GB5290672 A
GB 5290672A
GB 5290672 A
GB5290672 A
GB 5290672A
GB 1360939 A
GB1360939 A
GB 1360939A
Authority
GB
United Kingdom
Prior art keywords
compound
acid
amino
composition
dye bleach
Prior art date
1971-11-29
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
GB5290672A
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.)

Novartis AG

Original Assignee
Ciba Geigy 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.)
1971-11-29
Filing date
1972-11-16
Publication date
1974-07-24

1972-11-16
Application filed by Ciba Geigy AG
filed
Critical
Ciba Geigy AG

1974-07-24
Publication of GB1360939A
publication
Critical
patent/GB1360939A/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

G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes

G03C7/28—Silver dye bleach processes; Materials therefor; Preparing or processing such materials

Abstract

1360939 Photographic silver dye-bleaching composition CIBA-GEIGY A G 16 Nov 1972 [29 Nov 1971] 52906/72 Heading G2C A dye bleach composition for the silver dyebleach process comprises an acid, a watersoluble iodide and at least one mercapto compound of the formula:- R 1 – SH where R 1 is an optionally substituted 2-6C aliphatic radical or optionally substituted phenyl which may be substituted by primary amino, 1-4C monoalkylamino, di (1-4C alkyl) amino, OH or COOH or a salt thereof the solubility of the compound being at least 5 x 10-4 mole per litre of the composition and the compound having a vapour pressure at -20‹ to +100‹C which is at most equal to that of water at the same temperature. The compound may be 2-amino-3- mercapto-propionic acid, 2-dimethylamino-1- mercaptoethane, 2-diethylamino-1-mercaptoethane, 1, 2-dihydroxy-3-mercaptopropane, 1-amino-2-mercaptobenzene, mercaptoacetic acid, mercaptopropionic acid or mercaptosuccinic acid. The composition may contain a dye bleach catalyst. These compositions are stable and do not discolour.

GB5290672A
1971-11-29
1972-11-16
Silver dye bleach process

Expired

GB1360939A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

CH1733171A

CH570640A5
(en)

1971-11-29
1971-11-29

Publications (1)

Publication Number
Publication Date

GB1360939A
true

GB1360939A
(en)

1974-07-24

Family
ID=4424580
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB5290672A
Expired

GB1360939A
(en)

1971-11-29
1972-11-16
Silver dye bleach process

Country Status (12)

Country
Link

JP
(1)

JPS5422088B2
(en)

AT
(1)

AT319746B
(en)

AU
(1)

AU463691B2
(en)

BE
(1)

BE791978A
(en)

CA
(1)

CA1014402A
(en)

CH
(1)

CH570640A5
(en)

DE
(1)

DE2258076C2
(en)

FR
(1)

FR2169779B1
(en)

GB
(1)

GB1360939A
(en)

IT
(1)

IT973748B
(en)

NL
(1)

NL7216199A
(en)

ZA
(1)

ZA728077B
(en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

CH579292A5
(en)

*

1973-05-18
1976-08-31
Ciba Geigy Ag

CH584914A5
(en)

*

1973-10-12
1977-02-15
Ciba Geigy Ag

CH594912A5
(en)

*

1974-07-10
1978-01-31
Ciba Geigy Ag

CH627006A5
(en)

*

1977-03-23
1981-12-15
Ciba Geigy Ag

AT368816B
(en)

*

1980-04-04
1982-11-10
Grabig Tetenal Photowerk

SILVER COLORING FOR A PHOTOGRAPHIC SILVER COLORING METHOD

CH657710A5
(en)

*

1983-07-20
1986-09-15
Ciba Geigy Ag

METHOD FOR PROCESSING PHOTOGRAPHIC SILVER COLOR MATERIALS.

Family Cites Families (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

BE475914A
(en)

*

1946-12-14

CH508899A
(en)

*

1968-06-25
1971-06-15
Ciba Geigy Ag

Color bleaching preparation for the photographic silver color bleaching process

DE2044994A1
(en)

*

1970-09-11
1972-03-16
Agfa-Gevaert Ag, 5090 Leverkusen

Dye bleach bath for the silver dye bleaching process

0

BE
BE791978D
patent/BE791978A/en
unknown

1971

1971-11-29
CH
CH1733171A
patent/CH570640A5/xx
not_active
IP Right Cessation

1972

1972-10-23
FR
FR7237498A
patent/FR2169779B1/fr
not_active
Expired

1972-11-02
AU
AU48464/72A
patent/AU463691B2/en
not_active
Expired

1972-11-14
ZA
ZA728077A
patent/ZA728077B/en
unknown

1972-11-15
CA
CA156,470A
patent/CA1014402A/en
not_active
Expired

1972-11-16
GB
GB5290672A
patent/GB1360939A/en
not_active
Expired

1972-11-27
DE
DE2258076A
patent/DE2258076C2/en
not_active
Expired

1972-11-27
IT
IT54305/72A
patent/IT973748B/en
active

1972-11-28
AT
AT1012772A
patent/AT319746B/en
not_active
IP Right Cessation

1972-11-29
NL
NL7216199A
patent/NL7216199A/xx
unknown

1972-11-29
JP
JP11906172A
patent/JPS5422088B2/ja
not_active
Expired

Also Published As

Publication number
Publication date

DE2258076A1
(en)

1973-05-30

FR2169779A1
(en)

1973-09-14

IT973748B
(en)

1974-06-10

CA1014402A
(en)

1977-07-26

FR2169779B1
(en)

1976-10-29

JPS4863724A
(en)

1973-09-04

AT319746B
(en)

1975-01-10

CH570640A5
(en)

1975-12-15

ZA728077B
(en)

1973-07-25

AU4846472A
(en)

1974-05-02

NL7216199A
(en)

1973-06-01

BE791978A
(en)

1973-05-28

AU463691B2
(en)

1975-07-31

JPS5422088B2
(en)

1979-08-04

DE2258076C2
(en)

1982-06-24

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Legal Events

Date
Code
Title
Description

1974-12-04
PS
Patent sealed

1982-06-23
PCNP
Patent ceased through non-payment of renewal fee

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