GB725336A - Improvements in or relating to silver halide photographic film elements - Google Patents
Improvements in or relating to silver halide photographic film elementsInfo
- Publication number
- GB725336A GB725336A GB6073/53A GB607353A GB725336A GB 725336 A GB725336 A GB 725336A GB 6073/53 A GB6073/53 A GB 6073/53A GB 607353 A GB607353 A GB 607353A GB 725336 A GB725336 A GB 725336A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- acid
- complex
- chromium
- carboxylic 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
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
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/85—Photosensitive materials characterised by the base or auxiliary layers characterised by antistatic additives or coatings
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Laminated Bodies (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
725,336. Anti-static photographic film. DU PONT DE NEMOURS & CO., E. I. March 4, 1953 [April 9, 1952], No. 6073/63. Drawings to Specification. Class 98 (2). A film support carries on one side a colloidsilver halide emulsion layer and on the other side a layer of a film-forming binding agent containing a Wemer-type chromium complex in which trivalent chromium is co-ordinated with an aliphatic carboxylic acid group containing less than six carbon atoms, an aromatic carboxylic acid group containing seven carbon atoms, an aralkyl carboxylic acid group containing not more than eight carbon atoms, or any such acid group containing at least one dipole group such as Cl, Br, I, nitro, hydroxy or phenoxy. In eight specific examples the film support is always polyethylene terephthalate; the binding agent is a polyvinyl alcohol base acid complex, polyvinyl alcohol or gelatin; and the chromium complex that of p-nitrophenylacetic acid, p-nitrobenzoic acid, phenyl acetic trichloroacetic acid or thioglycollic acid; but numerous other film supports generally of hydrophobic type, other binding agents of both water-permeable and resinous or hydrophobic types, and other chromium complexes are quoted. The complex may be mixed with a solution of the binding agent in water or organic solvent as appropriate and applied to the film support as from extrusion orifices or transfer rollers, or by skim coating, followed by drying, and then a sublayer, a colloid silver halide emulsion layer or a plurality of such and filter or protective layers if required are applied to the obverse side of the support. An apparatus for measuring static charges acquired by a film travelling over a roller is described, results showing that untreated polyethylene terephthalate film builds up a charge of - 20 kilovolts when passing over a brass roller and treated film only - 0.35 to - 3 kilovolts, with reduced tendency to show static markings. The chromium complexes may be made by reacting chromyl chloride with a carboxylic acid as described above in organic solvent, or by making a solution of chromium trioxide and hydrochloric acid in water with a monohydric aliphatic alcohol and then with a carboxylic acid, and preparation of the complex of p-nitrophenylacetic acid, used in Examples I and II, by this latter method is described in detail. Specifications 550,246, [Group IV], and 654,342, [Group IV (a)], are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US281325A US2647836A (en) | 1952-04-09 | 1952-04-09 | Photographic film elements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB725336A true GB725336A (en) | 1955-03-02 |
Family
ID=23076805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6073/53A Expired GB725336A (en) | 1952-04-09 | 1953-03-04 | Improvements in or relating to silver halide photographic film elements |
Country Status (2)
Country | Link |
---|---|
US (1) | US2647836A (en) |
GB (1) | GB725336A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2745770A (en) * | 1952-04-09 | 1956-05-15 | Du Pont | Organic shaped structures coated with werner-type chromium compounds and method of making the same |
DE1068008B (en) * | 1958-02-26 | 1959-10-29 | Kalk &. Co. Aktiengesellschaft, Wiesbaden-Biebrich | Process for increasing the adhesion of sheet-like structures made from polyterephthalic acid glycol esters |
US3072483A (en) * | 1958-12-22 | 1963-01-08 | Eastman Kodak Co | Photographic element comprising polyethylene terephthalate film base |
US3437484A (en) * | 1965-07-26 | 1969-04-08 | Eastman Kodak Co | Antistatic film compositions and elements |
JP2010256908A (en) | 2010-05-07 | 2010-11-11 | Fujifilm Corp | Silver halide photographic photosensitive material for movie |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2403533A (en) * | 1943-08-18 | 1946-07-09 | Gen Aniline & Film Corp | Nonstatic photographic film |
-
1952
- 1952-04-09 US US281325A patent/US2647836A/en not_active Expired - Lifetime
-
1953
- 1953-03-04 GB GB6073/53A patent/GB725336A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2647836A (en) | 1953-08-04 |
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