GB437451A - Improvements relating to photographic anti-halation layers - Google Patents
Improvements relating to photographic anti-halation layersInfo
- Publication number
- GB437451A GB437451A GB1299134A GB1299134A GB437451A GB 437451 A GB437451 A GB 437451A GB 1299134 A GB1299134 A GB 1299134A GB 1299134 A GB1299134 A GB 1299134A GB 437451 A GB437451 A GB 437451A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- polymerization
- halation
- styrene
- produced
- 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
- G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
- G03C1/835—Macromolecular substances therefor, e.g. mordants
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Laminated Bodies (AREA)
Abstract
437,451. Photographic anti-halation layers. I. G. FARBENINDUSTRIE AKT.- GES., Frankfort-on-Main, Germany. April 30, 1934, No. 12991. Addition to 397,740. [Class 98 (ii)] An anti-halation layer is coated with a protective layer of a resinous polymerization product or mixed polymerization product containing a salt-forming carboxyl group and derived from an unsaturated carboxylic acid. Polymerization products referred to are polyacrylic acid, polystyrenecarboxylic acid, polyvinylchloride-polyacrylic acid, polyacrylic acid nitrile-polystyrenecarboxylic acid, polystyrenemaleic acid (produced by the polymerization of equimolecular proportions of styrene and maleic anhydride followed by the addition of water) and polystyreneacrylic acid (produced by the polymerization of equimolecular proportions of acrylic acid and styrene). A suitable solvent is a mixture of propanol and isobutanol. The coatings are soluble in alkaline developers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1299134A GB437451A (en) | 1934-04-30 | 1934-04-30 | Improvements relating to photographic anti-halation layers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1299134A GB437451A (en) | 1934-04-30 | 1934-04-30 | Improvements relating to photographic anti-halation layers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB437451A true GB437451A (en) | 1935-10-30 |
Family
ID=10014824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1299134A Expired GB437451A (en) | 1934-04-30 | 1934-04-30 | Improvements relating to photographic anti-halation layers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB437451A (en) |
-
1934
- 1934-04-30 GB GB1299134A patent/GB437451A/en not_active Expired
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