GB510705A - Process for preparing nitrocellulose - Google Patents
Process for preparing nitrocelluloseInfo
- Publication number
- GB510705A GB510705A GB3480/38A GB348038A GB510705A GB 510705 A GB510705 A GB 510705A GB 3480/38 A GB3480/38 A GB 3480/38A GB 348038 A GB348038 A GB 348038A GB 510705 A GB510705 A GB 510705A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- cellulose
- refined
- acid
- feb
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B5/00—Preparation of cellulose esters of inorganic acids, e.g. phosphates
- C08B5/02—Cellulose nitrate, i.e. nitrocellulose
-
- 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
- G03C1/795—Photosensitive materials characterised by the base or auxiliary layers the base being of macromolecular substances
Landscapes
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
510,705. Nitro-cellulose. KODAK, Ltd. Feb. 4, 1938, No. 3480. Convention date, Feb. 4, 1937. [Class 2(ii)] Cellulose, having a cuprammonium viscosity of not more than 12 seconds, and not more than 7 per cent. of which is soluble in 7.14 per cent. caustic soda or 10 per cent. caustic potash, is nitrated with a nitrating bath containing 14-35 per cent. nitric acid, 66-47 per cent. sulphuric acid and a total combined content of nitric and sulphuric acids of 79-83 per cent., the sum of the equivalent percentages of these acids (which are determined by dividing the percentage of each acid by its equivalent weight) being 1.57 to 1.52. The method of determining the cuprammonium viscosity of the cellulose is indicated. The nitrocellulose obtained by the process is completely soluble in methyl alcohol, and sheeting made therefrom, for instance by coating out a solution thereof in methyl alcohol containing a little acetone, may be employed as a base for photographic film. Examples are given of the nitration of refined cotton linters, but refined wood pulp, particularly refined sulphite pulp, may also be used.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US510706XA | 1937-02-04 | 1937-02-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB510705A true GB510705A (en) | 1939-08-04 |
Family
ID=21969146
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3549/38A Expired GB510706A (en) | 1937-02-04 | 1938-02-04 | Sheeting suitable for use as photographic film base and solutions for the manufacture thereof |
GB3480/38A Expired GB510705A (en) | 1937-02-04 | 1938-02-04 | Process for preparing nitrocellulose |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3549/38A Expired GB510706A (en) | 1937-02-04 | 1938-02-04 | Sheeting suitable for use as photographic film base and solutions for the manufacture thereof |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE736309C (en) |
GB (2) | GB510706A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102321183A (en) * | 2011-08-05 | 2012-01-18 | 四川北方硝化棉股份有限公司 | Wood pulp nitrocotton production method |
CN110794083A (en) * | 2019-11-11 | 2020-02-14 | 四川北方硝化棉股份有限公司 | Method for analyzing nitrocotton mixed acid components |
-
1938
- 1938-01-27 DE DEK149351D patent/DE736309C/en not_active Expired
- 1938-02-04 GB GB3549/38A patent/GB510706A/en not_active Expired
- 1938-02-04 GB GB3480/38A patent/GB510705A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102321183A (en) * | 2011-08-05 | 2012-01-18 | 四川北方硝化棉股份有限公司 | Wood pulp nitrocotton production method |
CN110794083A (en) * | 2019-11-11 | 2020-02-14 | 四川北方硝化棉股份有限公司 | Method for analyzing nitrocotton mixed acid components |
Also Published As
Publication number | Publication date |
---|---|
GB510706A (en) | 1939-08-04 |
DE736309C (en) | 1943-06-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB317608A (en) | Manufacture of artificial materials from viscose | |
GB510705A (en) | Process for preparing nitrocellulose | |
US2069974A (en) | Cellulose esters and process of preparing them | |
GB438643A (en) | Improvements in or relating to the manufacture of cellulose | |
US2118275A (en) | Process for preparing nitrocellulose | |
DE634938C (en) | Process for the production of nitrocellulose | |
US2131764A (en) | Art of nitrating cellulose by pretreatment of the cellulose | |
US2105627A (en) | Process of nitrating cellulose | |
US1729628A (en) | Process of conditioning cellulosic material for preparation of cellulose derivatives and product of same | |
GB812745A (en) | Compositions for removing corrosion products from metals | |
SU43153A1 (en) | Method for producing purified low viscosity fiber for the production of cellulose ethers and esters | |
US2105609A (en) | Method for the production of cellulose esters | |
SU41679A1 (en) | The method of preparation of suitable dispersion of nitrocellulose and other cellulose ethers | |
DE832542C (en) | Photographic layer material, casting base or film | |
GB469424A (en) | Improvements in or relating to the manufacture of nitrocellulose | |
GB427613A (en) | Process of preparing solutions of cellulose in sulphuric acid and artificial silk threads, films, bands, and such like artificial products thereof | |
DE659769C (en) | Process for the preparation of highly viscous acetyl cellulose soluble in acetone | |
US1883215A (en) | Low viscosity nitrocellulose and process of making the same | |
US2043946A (en) | Method of dehydrating cellulose derivatives and products therefrom | |
GB427611A (en) | Process of preparing homogeneous solutions of cellulose in sulphuric and other acids or mixtures of acids, more particularly for the preparation of artificial threads, films, ribbons and such like artificial products | |
GB523566A (en) | Improvements in or relating to the manufacture of cellulosic films, filaments or the like | |
GB323019A (en) | Improvements in the manufacture of nitro-cellulose | |
GB526370A (en) | Improvements in or relating to the manufacture of water-soluble cellulose ethers | |
US2059326A (en) | Manufacture of nitrocellulose | |
GB348292A (en) | Improved process for the manufacture of cellulose acetates |