GB949644A - Improved photographic developing composition - Google Patents

Improved photographic developing composition

Info

Publication number
GB949644A
GB949644A GB30967/63A GB3096763A GB949644A GB 949644 A GB949644 A GB 949644A GB 30967/63 A GB30967/63 A GB 30967/63A GB 3096763 A GB3096763 A GB 3096763A GB 949644 A GB949644 A GB 949644A
Authority
GB
United Kingdom
Prior art keywords
developers
nov
silver halide
developing composition
photographic developing
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
GB30967/63A
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.)
Gevaert Photo Producten NV
Original Assignee
Gevaert Photo Producten NV
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 Gevaert Photo Producten NV filed Critical Gevaert Photo Producten NV
Publication of GB949644A publication Critical patent/GB949644A/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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/305—Additives other than developers
    • G03C5/3056—Macromolecular additives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Epoxy Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

949,644. Photographic developers. GEVAERT PHOTO-PRODUCTEN N. V. Nov. 2, 1961 [Nov. 4, 1960(2)], No. 30967/63. Divided out of 949, 643. Heading G2C. Photographic silver halide developers contain the reaction product of a polyalkylene oxide with a diepoxide of the formula:- R-(CH 2 )n-R where R is a 2;3-epoxypropoxy group and n is 1 to 4. The reaction products are those described in Specification 947, 790 for use in the silver halide material. Examples are given of developers containing the condensation product of polyethylene glycol and 1;2-di (2<SP>1</SP>;3<SP>1</SP>,-epoxypropoxy)-ethane. The developers may contain hydroquinone, with or without 1-phenyl-3-pyrazolidone and a formaldehyde/bisulphite addition product.
GB30967/63A 1960-11-04 1961-11-02 Improved photographic developing composition Expired GB949644A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL257625 1960-11-04
NL257623 1960-11-04

Publications (1)

Publication Number Publication Date
GB949644A true GB949644A (en) 1964-02-19

Family

ID=26641744

Family Applications (3)

Application Number Title Priority Date Filing Date
GB30967/63A Expired GB949644A (en) 1960-11-04 1961-11-02 Improved photographic developing composition
GB39228/61A Expired GB949643A (en) 1960-11-04 1961-11-02 Improved photographic developing composition
GB30966/63A Expired GB996746A (en) 1960-11-04 1961-11-02 Improved photographic developing composition

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB39228/61A Expired GB949643A (en) 1960-11-04 1961-11-02 Improved photographic developing composition
GB30966/63A Expired GB996746A (en) 1960-11-04 1961-11-02 Improved photographic developing composition

Country Status (7)

Country Link
BE (1) BE609943A (en)
CH (1) CH429441A (en)
DE (1) DE1422888A1 (en)
FR (1) FR1305017A (en)
GB (3) GB949644A (en)
NL (2) NL257623A (en)
SE (3) SE305125B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196705A1 (en) * 1985-03-26 1986-10-08 Agfa-Gevaert N.V. A method of effecting high contrast development of a image-wise exposed photographic silver halide emulsion layer material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196705A1 (en) * 1985-03-26 1986-10-08 Agfa-Gevaert N.V. A method of effecting high contrast development of a image-wise exposed photographic silver halide emulsion layer material

Also Published As

Publication number Publication date
GB949643A (en) 1964-02-19
SE305125B (en) 1968-10-14
NL109730C (en)
SE320576B (en) 1970-02-09
CH429441A (en) 1967-01-31
BE609943A (en) 1962-03-01
DE1422888A1 (en) 1968-10-24
NL257623A (en)
FR1305017A (en) 1962-09-28
SE320575B (en) 1970-02-09
GB996746A (en) 1965-06-30

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