GB448802A - Improvements in photographic stripping films - Google Patents
Improvements in photographic stripping filmsInfo
- Publication number
- GB448802A GB448802A GB36049/34A GB3604934A GB448802A GB 448802 A GB448802 A GB 448802A GB 36049/34 A GB36049/34 A GB 36049/34A GB 3604934 A GB3604934 A GB 3604934A GB 448802 A GB448802 A GB 448802A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- stripping films
- cellulose acetate
- content
- acetyl
- 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
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 abstract 2
- 229920008347 Cellulose acetate propionate Polymers 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 125000002252 acyl group Chemical group 0.000 abstract 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 229920002301 cellulose acetate Polymers 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
- G03C1/805—Photosensitive materials characterised by the base or auxiliary layers characterised by stripping layers or stripping means
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Laminated Bodies (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The water permeable layer of a stripping photographic film comprises a cellulose aliphatic acid ester having a low acyl content. Cellulose acetate with an acetyl value of 33--36 per cent is most practical. Cellulose acetate propionate hydrolyzed to a content of 26 per cent acetyl and 4--5 per cent propionyl may also be used.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US702560A US1973476A (en) | 1933-12-15 | 1933-12-15 | Photographic stripping film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB448802A true GB448802A (en) | 1936-06-15 |
Family
ID=24821721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36049/34A Expired GB448802A (en) | 1933-12-15 | 1934-12-15 | Improvements in photographic stripping films |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1973476A (en) |
| DE (1) | DE653716C (en) |
| FR (1) | FR782728A (en) |
| GB (1) | GB448802A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE564233A (en) * | 1957-01-28 | |||
| NL132073C (en) * | 1959-10-03 | |||
| JPH02286299A (en) * | 1989-04-26 | 1990-11-26 | Inax Corp | Patterning film and method |
-
1933
- 1933-12-15 US US702560A patent/US1973476A/en not_active Expired - Lifetime
-
1934
- 1934-12-13 DE DEK136233D patent/DE653716C/en not_active Expired
- 1934-12-14 FR FR782728D patent/FR782728A/en not_active Expired
- 1934-12-15 GB GB36049/34A patent/GB448802A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE653716C (en) | 1937-12-01 |
| FR782728A (en) | 1935-06-11 |
| US1973476A (en) | 1934-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB406917A (en) | Improvements in photographic bleaching-out layers | |
| GB448802A (en) | Improvements in photographic stripping films | |
| GB513694A (en) | Improvements in or relating to photographic film | |
| GB476314A (en) | Improved treatment of polyvinyl alcohols or their partial derivatives | |
| GB974920A (en) | Improvements in and relating to the manufacture of suppositories | |
| GB530618A (en) | Improvements in and relating to photographic elements | |
| GB459665A (en) | Improvements in photographic developers | |
| GB468791A (en) | Improvements relating to photographic films | |
| GB586322A (en) | Improvements relating to photographic films | |
| GB391729A (en) | Improved treatment of photographic films made from cellulose esters | |
| GB558921A (en) | Improvements relating to photographic films | |
| GB598393A (en) | Sensitive photographic paper | |
| GB1223633A (en) | Process for the hydrolysis of cellulose esters | |
| GB338202A (en) | Improvements in or relating to the manufacture of cellulose esters | |
| FR49461E (en) | Improvements to canoes and light boats | |
| AU1318619A (en) | Improvements in and relating' to photographic films | |
| FR823864A (en) | Improvements in subtitling processes for images of cinematographic films and resulting films | |
| GB432772A (en) | Manufacture of transparent discs | |
| GB792430A (en) | Improvements relating to films and film forming solutions | |
| CA325532A (en) | Manufacture of cellulose acetate films | |
| GB369609A (en) | Improvements in or relating to the manufacture of sheets or films of compositions containing cellulose esters or ethers | |
| CA350034A (en) | Sled and boat with air propeller | |
| GB419763A (en) | Manufacture of cellulose esters | |
| AU102802B2 (en) | Improvements in or relating to apparatus for translating values of light and shade into electrical currents to produce electrical picture signals | |
| CA324735A (en) | Non-corrosive water and alcohol solution |