GB245456A - Improvements in or relating to the manufacture of gelatine - Google Patents
Improvements in or relating to the manufacture of gelatineInfo
- Publication number
- GB245456A GB245456A GB32980/25A GB3298025A GB245456A GB 245456 A GB245456 A GB 245456A GB 32980/25 A GB32980/25 A GB 32980/25A GB 3298025 A GB3298025 A GB 3298025A GB 245456 A GB245456 A GB 245456A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gelatine
- inert
- manufacture
- peroxide
- sodium
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09H—PREPARATION OF GLUE OR GELATINE
- C09H3/00—Isolation of glue or gelatine from raw materials, e.g. by extracting, by heating
- C09H3/02—Purification of solutions of gelatine
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
245,456. Kodak, Ltd., (Assignees of Sheppard, S. E.). June 6, 1924, [Convention date]. Void [Published under Sect. 91 of the Acts]. Gelatine. - Inert gelatine for use in photographic emulsions is prepared by freeing, wholly or partly, ordinary gelatine from sensitizing compounds normally contained therein, as by treatment with an oxidising agent. The gelatine may be treated with sodium or other peroxide, and washed, or calcium hypochlorite or sodium peroxide may be introduced into the gelatine during its manufacture. To make photographic emulsions, a mixture of inert and active gelatine may be used, or inert gelatine may be activated by the addition of the sensitizing compounds described in Specification 235,211, [Class 98 (ii), Photographic processes &c.].
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US245456XA | 1924-06-06 | 1924-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB245456A true GB245456A (en) | 1927-05-02 |
Family
ID=21821154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32980/25A Expired GB245456A (en) | 1924-06-06 | 1925-06-05 | Improvements in or relating to the manufacture of gelatine |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB245456A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4713323A (en) * | 1985-12-19 | 1987-12-15 | Eastman Kodak Company | Chloride containing tabular grain emulsions and processes for their preparation employing a low methionine gelatino-peptizer |
| US4713320A (en) * | 1985-12-19 | 1987-12-15 | Eastman Kodak Company | Low methionine gelatino-peptizer tabular grain silver bromide and bromoiodide emulsions and processes for their preparation |
| US5412075A (en) * | 1992-03-11 | 1995-05-02 | Eastman Kodak Company | Control of methionine content in photographic grade gelatin |
-
1925
- 1925-06-05 GB GB32980/25A patent/GB245456A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4713323A (en) * | 1985-12-19 | 1987-12-15 | Eastman Kodak Company | Chloride containing tabular grain emulsions and processes for their preparation employing a low methionine gelatino-peptizer |
| US4713320A (en) * | 1985-12-19 | 1987-12-15 | Eastman Kodak Company | Low methionine gelatino-peptizer tabular grain silver bromide and bromoiodide emulsions and processes for their preparation |
| US5412075A (en) * | 1992-03-11 | 1995-05-02 | Eastman Kodak Company | Control of methionine content in photographic grade gelatin |
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