GB933494A - Photographic silver halide emulsions and photographic elements containing them - Google Patents

Photographic silver halide emulsions and photographic elements containing them

Info

Publication number
GB933494A
GB933494A GB20294/61A GB2029461A GB933494A GB 933494 A GB933494 A GB 933494A GB 20294/61 A GB20294/61 A GB 20294/61A GB 2029461 A GB2029461 A GB 2029461A GB 933494 A GB933494 A GB 933494A
Authority
GB
United Kingdom
Prior art keywords
photographic
silver halide
halide emulsions
elements containing
hydroxyethyl
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
GB20294/61A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB933494A publication Critical patent/GB933494A/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
    • G03C1/043—Polyalkylene oxides; Polyalkylene sulfides; Polyalkylene selenides; Polyalkylene tellurides
    • 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
    • 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
    • C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/20—Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

The Specification refers to b -hydroxyethyl and b -hydroxypropyl ethers and mixed ethers of polyvinyl alcohol. In the examples, b -hydroxyethyl vinyl ether and vinyl acetate are copolymerized in t-butyl alcohol using azobisisobutyronitrile catalyst. The copolymer produced is then hydrolysed by refluxing with sodium methoxide in methanol. In Example III, b -hydroxyethyl vinyl ether is polymerized in t-butyl alcohol with azobis-isobutyronitrile catalyst. Specifications 592,676, 600,058, 658,588, 658,826, 718,422, 786,176, 853,588, French Specification 708,236 and U.S.A. Specification 1,925 508 are referred to.
GB20294/61A 1960-08-18 1961-06-05 Photographic silver halide emulsions and photographic elements containing them Expired GB933494A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50324A US3043698A (en) 1960-08-18 1960-08-18 Photographic gelatin-silver halide emulsions containing beta-hydroxyalkyl ethers of polyvinyl alcohol

Publications (1)

Publication Number Publication Date
GB933494A true GB933494A (en) 1963-08-08

Family

ID=21964593

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20294/61A Expired GB933494A (en) 1960-08-18 1961-06-05 Photographic silver halide emulsions and photographic elements containing them

Country Status (5)

Country Link
US (1) US3043698A (en)
BE (1) BE605724A (en)
DE (1) DE1133242B (en)
FR (1) FR1296441A (en)
GB (1) GB933494A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE627760A (en) * 1962-01-31
US3152906A (en) * 1962-05-07 1964-10-13 Du Pont Gelatin silver halide compositions and elements containing a water-soluble hydroxyalkyl ether derivative of starch
JPS5323875B2 (en) * 1973-06-12 1978-07-17
CA2326557C (en) * 1999-11-18 2006-03-14 Kuraray Co., Ltd. Saponified, alkoxyl group-containing ethylene-vinyl acetate copolymer, and its processed products
DE10120492A1 (en) * 2001-04-26 2002-11-07 Wacker Chemie Gmbh Use of etherified vinyl alcohol polymers as thickeners

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE500540A (en) * 1950-01-13

Also Published As

Publication number Publication date
BE605724A (en)
US3043698A (en) 1962-07-10
DE1133242B (en) 1962-07-12
FR1296441A (en) 1962-06-15

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