GB1276912A - Process for the preparation of silver halide emulsions - Google Patents

Process for the preparation of silver halide emulsions

Info

Publication number
GB1276912A
GB1276912A GB42164/69A GB4216469A GB1276912A GB 1276912 A GB1276912 A GB 1276912A GB 42164/69 A GB42164/69 A GB 42164/69A GB 4216469 A GB4216469 A GB 4216469A GB 1276912 A GB1276912 A GB 1276912A
Authority
GB
United Kingdom
Prior art keywords
silicic acid
preparation
silver halide
halide emulsions
acid
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
GB42164/69A
Inventor
Harald Huckstadt
Wilhelm Saleck
Wolfgang Himmelmann
Rudolf Meyer
Franz Moll
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert 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
Priority claimed from DE19681797254 external-priority patent/DE1797254C3/en
Application filed by Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of GB1276912A publication Critical patent/GB1276912A/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

Abstract

1276912 Colloidal silica AGFA-GEVAERT AG 25 Aug 1969 [5 Sept 1968] 42164/69 Heading C1A [Also in Divisions C3 and G2] In Example XVIII a colloidal silicic acid sol containing 10% of polyacrylic acid is made by heating a 30% aqueous colloidal silicic acid sol of particle size 14-15 nm. and surface 195- 215 m.<SP>2</SP>/g. with sodium acrylate in the presence of potassium persulphate. The polymer prevents agglomeration of the silicic acid particles. Other polymers which can be formed are those of acrylonitrile, acrylamide and vinylsulphonic acid.
GB42164/69A 1968-09-05 1969-08-25 Process for the preparation of silver halide emulsions Expired GB1276912A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681797254 DE1797254C3 (en) 1968-09-05 Process for the preparation of silver halide emulsions

Publications (1)

Publication Number Publication Date
GB1276912A true GB1276912A (en) 1972-06-07

Family

ID=5708582

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42164/69A Expired GB1276912A (en) 1968-09-05 1969-08-25 Process for the preparation of silver halide emulsions

Country Status (5)

Country Link
US (1) US3637391A (en)
BE (1) BE738444A (en)
CH (1) CH534900A (en)
FR (1) FR2017463A1 (en)
GB (1) GB1276912A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3877944A (en) * 1971-11-24 1975-04-15 Agfa Gevaert Ag Photographic silver salt emulsions comprising polymers with disulfonimide groups
US4046586A (en) * 1974-08-19 1977-09-06 American Optical Corporation Stabilized photochromic materials
US4001022A (en) * 1975-08-13 1977-01-04 Minnesota Mining And Manufacturing Company Photographic materials comprising developer layers and binders comprising silica sol
DE2824249A1 (en) * 1978-06-02 1979-12-06 Agfa Gevaert Ag PRODUCTION OF PHOTOGRAPHICAL MATERIALS
DE68918267T2 (en) * 1989-04-11 1995-03-02 Agfa Gevaert Nv Process for the preparation of light-sensitive silver halide emulsions.
US5013641A (en) * 1989-12-19 1991-05-07 Eastman Kodak Company Formation of tabular silver halide emulsions utilizing high pH digestion
DE69129148T2 (en) * 1991-06-11 1998-10-08 Agfa Gevaert Nv Process for the preparation of light-sensitive silver halide emulsions
EP0528476B1 (en) * 1991-08-15 1997-03-05 Agfa-Gevaert N.V. Method of preparing a silver halide light-sensitive photographic material
JP2873326B2 (en) * 1991-08-23 1999-03-24 富士写真フイルム株式会社 Silver halide photographic material
EP0586748A1 (en) * 1992-09-11 1994-03-16 Agfa-Gevaert N.V. Filter dyes for rapid processing applications
US5340613A (en) * 1993-03-12 1994-08-23 Minnesota Mining And Manufacturing Company Process for simultaneously coating multiple layers of thermoreversible organogels and coated articles produced thereby
EP0696363B1 (en) * 1993-04-26 2001-09-05 Eastman Kodak Company Photothermographic elements
DE69425557T2 (en) * 1994-05-09 2001-05-23 Agfa Gevaert Nv Process for the preparation of light-sensitive silver halide emulsions containing chloride-rich crystals
EP0831362A1 (en) * 1996-09-18 1998-03-25 Agfa-Gevaert N.V. Silver halide light-sensitive material with colloidal silica as protective colloid coated from layers without or with minimum amounts of gelatin as a binder material
US20090092538A1 (en) 2007-10-08 2009-04-09 Amit Khanolkar Methods for forming stabilized metal salt particles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2626867A (en) * 1947-12-04 1953-01-27 Du Pont Light-sensitive photographic element
US2694637A (en) * 1951-07-19 1954-11-16 Du Pont Photographic emulsions containing a silanic sensitizer
BE529419A (en) * 1953-06-16
US3411907A (en) * 1965-03-04 1968-11-19 Eastman Kodak Co Photographic compositions containing combination of soft and hard matting agents
DE1267931B (en) * 1965-07-07 1968-05-09 Rudolf Pfeilmaier Paste or solution for cleaning and silver plating

Also Published As

Publication number Publication date
FR2017463A1 (en) 1970-05-22
DE1797254A1 (en) 1971-07-29
CH534900A (en) 1973-03-15
BE738444A (en) 1970-03-05
DE1797254B2 (en) 1976-07-22
US3637391A (en) 1972-01-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee