ES294129A1 - Process for the manufacture of silver halide emulsions by the flocculation method - Google Patents

Process for the manufacture of silver halide emulsions by the flocculation method

Info

Publication number
ES294129A1
ES294129A1 ES0294129A ES294129A ES294129A1 ES 294129 A1 ES294129 A1 ES 294129A1 ES 0294129 A ES0294129 A ES 0294129A ES 294129 A ES294129 A ES 294129A ES 294129 A1 ES294129 A1 ES 294129A1
Authority
ES
Spain
Prior art keywords
silver halide
flocculation method
manufacture
halide emulsions
moles
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
ES0294129A
Other languages
Spanish (es)
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.)
Filing date
Publication date
Application filed by Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of ES294129A1 publication Critical patent/ES294129A1/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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
    • G03C1/053—Polymers obtained by reactions involving only carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
    • 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
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/62—Monocarboxylic acids having ten or more carbon atoms; Derivatives thereof
    • 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
    • C08F26/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
    • C08F26/06—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

Process for preparing photographic emulsions of silver halide by the flocculation method, characterized in that as linear flocculating additives are used as flocculating agents, constituted essentially by polymeric units of: 1) 15 to 70%, in moles, of a saturated 2-oxo-N-vinylheterocyclic compound in the ring, and 2) 30 to 85%, in moles, of a salt, soluble in water, of acrylic acid or methacrylic acid. (Machine-translation by Google Translate, not legally binding)
ES0294129A 1962-12-04 1963-12-03 Process for the manufacture of silver halide emulsions by the flocculation method Expired ES294129A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1420062A CH441994A (en) 1962-12-04 1962-12-04 Process for preparing photographic silver halide emulsions by the flocculation method

Publications (1)

Publication Number Publication Date
ES294129A1 true ES294129A1 (en) 1964-06-01

Family

ID=4398761

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0294129A Expired ES294129A1 (en) 1962-12-04 1963-12-03 Process for the manufacture of silver halide emulsions by the flocculation method

Country Status (8)

Country Link
US (1) US3360373A (en)
AT (1) AT245928B (en)
BE (1) BE640736A (en)
CH (1) CH441994A (en)
DE (1) DE1212839B (en)
ES (1) ES294129A1 (en)
GB (1) GB1005404A (en)
NL (1) NL301289A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1101409A (en) * 1965-06-01 1968-01-31 Fuji Photo Film Co Ltd Improvements in and relating to photographic light sensitive materials
US3479186A (en) * 1966-01-27 1969-11-18 Polaroid Corp Emulsion binders
US3505067A (en) * 1967-03-16 1970-04-07 Gaf Corp Alkylated poly-n-vinyl-lactam stabilized silver halide emulsions
US3421896A (en) * 1967-08-03 1969-01-14 Gen Aniline & Film Corp Prevention of silver occulsion in color photography
JPS4838417B1 (en) * 1969-09-22 1973-11-17
GB1401768A (en) * 1971-12-20 1975-07-30 Agfa Gevaert Polymerisable unsaturated oxazolidines and tetrahydro-1,3-oxa zines and polymers thereof
JPS4993013A (en) * 1973-01-08 1974-09-04

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592107A (en) * 1948-11-19 1952-04-08 Hercules Powder Co Ltd Synthetic amphoteric polymers containing free amino groups and free acid groups
DE1094099B (en) * 1958-04-10 1960-12-01 Ferrania Spa Photographic photosensitive emulsion and process for the preparation thereof
GB889760A (en) * 1958-04-10 1962-02-21 Ferrania Spa Improvements in the preparation of photographic emulsions

Also Published As

Publication number Publication date
AT245928B (en) 1966-03-25
GB1005404A (en) 1965-09-22
BE640736A (en) 1964-06-03
US3360373A (en) 1967-12-26
NL301289A (en)
CH441994A (en) 1967-08-15
DE1212839B (en) 1966-03-17

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