GB751912A - Improvements in colour photographic processes and materials - Google Patents

Improvements in colour photographic processes and materials

Info

Publication number
GB751912A
GB751912A GB20685/54A GB2068554A GB751912A GB 751912 A GB751912 A GB 751912A GB 20685/54 A GB20685/54 A GB 20685/54A GB 2068554 A GB2068554 A GB 2068554A GB 751912 A GB751912 A GB 751912A
Authority
GB
United Kingdom
Prior art keywords
materials
colour photographic
photographic processes
group
homogentisamides
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
GB20685/54A
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.)
Kodak Ltd
Original Assignee
Kodak 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
Priority claimed from US370598A external-priority patent/US2704713A/en
Application filed by Kodak Ltd filed Critical Kodak Ltd
Publication of GB751912A publication Critical patent/GB751912A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/10—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means together with a coded signal, e.g. in the form of personal identification information, like personal identification number [PIN] or biometric data
    • G07F7/1008—Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system
    • 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
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/392—Additives
    • G03C7/39208—Organic compounds
    • G03C7/39212—Carbocyclic
    • G03C7/39216—Carbocyclic with OH groups

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Coloring (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

Homogentisamides are prepared by treating homogentisic acid lactone with an aliphatic amine of the formula R.NH2, where R is an alkyl group of 6 to 18 carbon atoms. Values of R specified are hexyl, octyl, decyl, dodecyl, cetyl and octadecyl. Specifications 2562/13, [Class 98 (ii)], 524,154, 524,554, 524,555 and 541,589, [all in Group XX], also are referred to.
GB20685/54A 1951-04-10 1954-07-15 Improvements in colour photographic processes and materials Expired GB751912A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US220336A US2675314A (en) 1951-04-10 1951-04-10 Antistain agents for photographic color materials
US370598A US2704713A (en) 1953-07-27 1953-07-27 Nu-alkylhomogentisamide antistain agents for photographic materials

Publications (1)

Publication Number Publication Date
GB751912A true GB751912A (en) 1956-07-04

Family

ID=26914778

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9246/52A Expired GB720500A (en) 1951-04-10 1952-04-10 Improvements in colour photographic processes and materials
GB20685/54A Expired GB751912A (en) 1951-04-10 1954-07-15 Improvements in colour photographic processes and materials

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9246/52A Expired GB720500A (en) 1951-04-10 1952-04-10 Improvements in colour photographic processes and materials

Country Status (4)

Country Link
US (1) US2675314A (en)
BE (2) BE510592A (en)
FR (2) FR1053636A (en)
GB (2) GB720500A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944899A (en) * 1956-10-04 1960-07-12 Eastman Kodak Co Stabilization of photographic silver halide emulsions
BE570978A (en) * 1957-09-09
BE594935A (en) * 1959-09-11
BE613239A (en) * 1961-02-01
US3168400A (en) * 1961-05-22 1965-02-02 Eastman Kodak Co Rapid processing of photographic color materials
US3459548A (en) * 1967-07-24 1969-08-05 Polaroid Corp Scavengers for oxidized developing agent
DE2639930A1 (en) * 1976-09-04 1978-03-09 Agfa Gevaert Ag ANTI-COLOR VEIL FOR COLOR PHOTOGRAPHIC MATERIALS
JPS5935012B2 (en) * 1978-09-20 1984-08-25 コニカ株式会社 Color photographic material
US4357419A (en) * 1981-04-02 1982-11-02 Minnesota Mining And Manufacturing Company Covering power in films
CA1178838A (en) * 1981-06-19 1984-12-04 David G. Leppard Photographic material including a colour coupler- containing silver halide layer and an associated hydroquinone compound
CA1247632A (en) * 1981-06-19 1988-12-28 Frederick H. Howell Hydroquinones
US4430426A (en) 1982-06-04 1984-02-07 Minnesota Mining And Manufacturing Company Stabilization of silver halide emulsions
JPS59116647A (en) 1982-12-13 1984-07-05 Konishiroku Photo Ind Co Ltd Silver halide photosensitive material
JPS60143331A (en) 1983-12-29 1985-07-29 Fuji Photo Film Co Ltd Silver halide photosensitive material
EP0209118B1 (en) 1985-07-17 1991-10-23 Konica Corporation Silver halide photographic material
JPS6267536A (en) * 1985-09-19 1987-03-27 Konishiroku Photo Ind Co Ltd Method of giving light fastness to organic coloring matter
JP2516026B2 (en) 1986-08-15 1996-07-10 富士写真フイルム株式会社 Silver halide photosensitive material
DE69129964T2 (en) * 1990-10-08 1999-01-21 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa A silver halide color photographic material
US5561036A (en) * 1995-03-30 1996-10-01 Eastman Kodak Company Photographic elements containing scavengers for oxidized developing agent

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB501040A (en) * 1936-05-09 1939-02-20 Kodak Ltd Improvements in colour photographic development
US2301387A (en) * 1939-12-09 1942-11-10 Eastman Kodak Co Reducing aerial oxidation of photographic developers
GB500613A (en) * 1936-05-09 1939-02-10 Kodak Ltd Improvements in colour developers and colour development
US2360290A (en) * 1941-07-31 1944-10-10 Eastman Kodak Co Preventing formation of color fog in emulsions
US2384658A (en) * 1943-07-10 1945-09-11 Eastman Kodak Co Color photography
US2403721A (en) * 1943-09-23 1946-07-09 Eastman Kodak Co Preventing color fog in photographic material

Also Published As

Publication number Publication date
BE530383A (en)
FR70307E (en) 1959-04-06
US2675314A (en) 1954-04-13
BE510592A (en)
FR1053636A (en) 1954-02-03
GB720500A (en) 1954-12-22

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