GB1217534A - Photographic silver salt diffusion transfer process - Google Patents

Photographic silver salt diffusion transfer process

Info

Publication number
GB1217534A
GB1217534A GB4012/68A GB401268A GB1217534A GB 1217534 A GB1217534 A GB 1217534A GB 4012/68 A GB4012/68 A GB 4012/68A GB 401268 A GB401268 A GB 401268A GB 1217534 A GB1217534 A GB 1217534A
Authority
GB
United Kingdom
Prior art keywords
acrylate
alkyl
copolymer
formula
weight
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
GB4012/68A
Inventor
Dorothy Johnson Beavers
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1217534A publication Critical patent/GB1217534A/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
    • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
    • G03C8/02—Photosensitive materials characterised by the image-forming section
    • G03C8/04—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of inorganic or organo-metallic compounds derived from photosensitive noble metals
    • G03C8/06—Silver salt diffusion transfer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1,217,534. Silver salt diffusion transfer process. EASTMAN KODAK CO. Jan. 25, 1968 [Jan.25, 1967], No.4012/68. Heading G2C. The invention relates to a silver salt diffusion transfer process in which the silver halide emulsion layer contains as the binder (a) a water insoluble polymer or a copolymer of an acrylate or an alphasubstituted acrylate; the alcohol residue of the ester or the alpha-substitutent containing an active methylene group and the amount of acrylate in the copolymer being at least 50% or (b) a copolymer containing 3-20% by weight of a sulphoester of formula CH 2 = C-CO.O R 3 SO 2 OM wherein R 4 R 4 is H or alkyl R 3 is alkylene, cycloakylene or alkylene interrupted by at least one O or S atom and M is a cation and the remainder being an alkyl acrylate or an alkyl alpha-substituted acrylate, the alkyl group containing 1-10 carbon atoms. The silver halide emulsion may be overcoated with a layer containing the acrylate polymer or copolymer. Preferably the acrylate used is of the formula: CH 2 = C-CO OR 2 wherein R 1 is H or alkyl or R 1 R-O-CO-CH 2 X wherein R is alkylene and X is aliphatic acyl or cyano and R 2 is alkyl, cycloalkyl, aryl or R-O-CO-CH 2 -X, the alkyl or alkylene groups having from 1-10 cations. Alternatively the acrylate copolymers listed in Specification 1,181, 508 may be used. The acrylate polymer is preferably mixed with gelatine. Acrylate interpolymers containing (i) at least 50% by weight of a monomer of formula CH 2 = C-CO-OR o " where | R<SP>1</SP> 0 R<SP>1</SP> 0 is hydrogen or methyl and Ro is alkyl, (ii) either (a) 3 to 20% by weight of a sulphoester monomer of formula set out above or (b) from 3 to 20% by weight of acrylic acid and (iii) an acrylate of formula CH 2 = C - COÀOR 2 | R 1 wherein the values of R 1 and R 2 are as above. In the examples, the gelatine silver halide emulsion layer either contains, or is overcoated with, methyl acrylate/sulphopropyl acrylate/2- acetoacetoxyethyl methacrylate interpolymer, butyl acrylate/ sulphopropyl acrylate copolymer or butyl acrylate/ sulphopropyl acrylate/2- acetoacetoxyethyl methaerylate, imagewise exposed, developed and pressed against a receptor sheet containing palladium nuclei in an alkyl acrylate/ acrylic acid latex.
GB4012/68A 1967-01-25 1968-01-25 Photographic silver salt diffusion transfer process Expired GB1217534A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61159267A 1967-01-25 1967-01-25

Publications (1)

Publication Number Publication Date
GB1217534A true GB1217534A (en) 1970-12-31

Family

ID=24449636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4012/68A Expired GB1217534A (en) 1967-01-25 1968-01-25 Photographic silver salt diffusion transfer process

Country Status (2)

Country Link
US (1) US3576628A (en)
GB (1) GB1217534A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1389548A (en) * 1972-11-22 1975-04-03 Ilford Ltd Photographic colloid layers in silver halide materials
US4476213A (en) * 1982-12-10 1984-10-09 The Mead Corporation Non-aqueous silver halide diffusion imaging system
US4507381A (en) * 1982-12-10 1985-03-26 The Mead Corporation Non-aqueous silver halide diffusion imaging system
US5015566A (en) * 1988-09-08 1991-05-14 Eastman Kodak Company Tabular grain photographic elements exhibiting reduced pressure sensitivity (II)
US5066572A (en) * 1990-03-22 1991-11-19 Eastman Kodak Company Control of pressure-fog with gelatin-grafted and case-hardened gelatin-grafted soft polymer latex particles
US5026632A (en) * 1990-03-22 1991-06-25 Eastman Kodak Company Use of gelatin-grafted and case-hardened gelatin-grafted polymer particles for relief from pressure sensitivity of photographic products
US5248558A (en) * 1990-03-22 1993-09-28 Eastman Kodak Company Case-hardened gelatin-grafted polymer particles
JPH05188528A (en) * 1991-06-25 1993-07-30 Eastman Kodak Co Photograph element containing pressure-absorption protecting layer
JPH05188527A (en) * 1991-06-25 1993-07-30 Eastman Kodak Co Photograph element containing pressure absorbing intermediate layer
US5298376A (en) * 1991-10-01 1994-03-29 Eastman Kodak Company Photographic silver halide material with improved color saturation
US5254441A (en) * 1991-10-01 1993-10-19 Eastman Kodak Company Development inhibitor reflector layers
US5399480A (en) * 1993-09-14 1995-03-21 Eastman Kodak Company Attachment of gelatin-grafted polymer particles to pre-precipitated silver halide grains

Also Published As

Publication number Publication date
US3576628A (en) 1971-04-27

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