NL237286A - - Google Patents

Info

Publication number
NL237286A
NL237286A NL237286DA NL237286A NL 237286 A NL237286 A NL 237286A NL 237286D A NL237286D A NL 237286DA NL 237286 A NL237286 A NL 237286A
Authority
NL
Netherlands
Prior art keywords
maleic acid
gelatine
product
reaction product
acid derivative
Prior art date
Application number
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.)
Publication of NL237286A publication Critical patent/NL237286A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/14—Esterification
    • 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
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/30—Hardeners
    • G03C1/307—Macromolecular substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/30—Chemical modification of a polymer leading to the formation or introduction of aliphatic or alicyclic unsaturated groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

A process for hardening gelatine comprises adding to the gelatine a reaction product of maleic acid or a maleic acid derivative, with a macro-molecular product containing amino groups. The reaction product may be added to a solution of the gelatine or to a gelatine-silver halide emulsion which may be in the form of a layer. The macromolecular product may be gelatine, polyvinylamine, or casein and the maleic acid derivative may be a monoester of maleic acid, maleic acid anhydride or halogenated maleic acid.
NL237286D 1955-11-17 NL237286A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL202122 1955-11-17
BE2037942 1958-03-20

Publications (1)

Publication Number Publication Date
NL237286A true NL237286A (en)

Family

ID=25661553

Family Applications (3)

Application Number Title Priority Date Filing Date
NL237286D NL237286A (en) 1955-11-17
NL89302D NL89302C (en) 1955-11-17
NL202122D NL202122A (en) 1955-11-17

Family Applications After (2)

Application Number Title Priority Date Filing Date
NL89302D NL89302C (en) 1955-11-17
NL202122D NL202122A (en) 1955-11-17

Country Status (4)

Country Link
BE (2) BE565862A (en)
FR (1) FR1165518A (en)
GB (2) GB822061A (en)
NL (3) NL202122A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069867B (en) * 1958-03-20
GB982938A (en) * 1961-03-24 1965-02-10 Gevaert Photo Prod Nv Improvements in or relating to the hardening of proteinaceous material
BE635843A (en) * 1962-08-06
EP0204530B1 (en) 1985-05-31 1991-09-11 Konica Corporation Method for forming direct positive color image
JP3311874B2 (en) * 1994-10-14 2002-08-05 富士写真フイルム株式会社 Composition for lithographic printing dampening solution

Also Published As

Publication number Publication date
FR1165518A (en) 1958-10-27
GB860631A (en) 1961-02-08
NL89302C (en)
BE565862A (en)
NL202122A (en)
BE552537A (en)
GB822061A (en) 1959-10-21

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