GB415329A - Process for stabilising cellulose esters - Google Patents
Process for stabilising cellulose estersInfo
- Publication number
- GB415329A GB415329A GB309134A GB309134A GB415329A GB 415329 A GB415329 A GB 415329A GB 309134 A GB309134 A GB 309134A GB 309134 A GB309134 A GB 309134A GB 415329 A GB415329 A GB 415329A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methanol
- petrol
- parts
- cellulose esters
- stabilising
- 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
- C08B3/00—Preparation of cellulose esters of organic acids
- C08B3/22—Post-esterification treatments, including purification
- C08B3/26—Isolation of the cellulose ester
- C08B3/28—Isolation of the cellulose ester by precipitation
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Cellulose esters obtained with the aid of sulphuric acid are stabilized by treating with methanol, alone or in solution in water, petrol, benzol or carbon tetrachloride, without pressure or heating. Some acetone or diacetone alcohol may be added to the methanol. In an example, fibrous cellulose triacetate, e.g. as produced according to Specification 381,991, is drained and treated for 3 hours at 25 DEG C. in a bath of 98 per cent methanol, then removed and dried. In a further example, nitrocellulose is drained and treated for 3 hours at 25 DEG C. with a mixture of 10 parts of methanol and 90 parts of petrol, or 85 parts of petrol and 5 of acetone, and then removed and dried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB309134A GB415329A (en) | 1934-01-30 | 1934-01-30 | Process for stabilising cellulose esters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB309134A GB415329A (en) | 1934-01-30 | 1934-01-30 | Process for stabilising cellulose esters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB415329A true GB415329A (en) | 1934-08-23 |
Family
ID=9751769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB309134A Expired GB415329A (en) | 1934-01-30 | 1934-01-30 | Process for stabilising cellulose esters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB415329A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4415734A (en) * | 1981-07-10 | 1983-11-15 | Daicel Chemical Industries, Ltd. | Process for preparation of cellulose acetate |
-
1934
- 1934-01-30 GB GB309134A patent/GB415329A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4415734A (en) * | 1981-07-10 | 1983-11-15 | Daicel Chemical Industries, Ltd. | Process for preparation of cellulose acetate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB317608A (en) | Manufacture of artificial materials from viscose | |
| GB416549A (en) | Improvements in the manufacture of cellulose and lignocellulosic materials | |
| GB427626A (en) | Improvements in or relating to the manufacture of cellulose | |
| GB415329A (en) | Process for stabilising cellulose esters | |
| GB544219A (en) | Improved process for obtaining fibres, more particularly bast fibres, from vegetablematerials | |
| GB459820A (en) | Process for stabilising cellulose esters | |
| GB417383A (en) | Manufacture of alcohols from marine animal waxes | |
| GB491583A (en) | Process for the production of cellulose esters | |
| GB459531A (en) | Improvements in or relating to the manufacture of cellulose | |
| SU43153A1 (en) | Method for producing purified low viscosity fiber for the production of cellulose ethers and esters | |
| US2304792A (en) | Preparation of high viscosity mixed fatty acid esters of cellulose | |
| GB377795A (en) | Improvements in the manufacture and production of cellulose compounds | |
| GB399508A (en) | Improvements in cellulosic materials | |
| GB495056A (en) | Improved process of producing hydrolysed cellulose esters of reduced viscosity and manufacture of yarn and other products therefrom | |
| GB343712A (en) | Improvements in or relating to processes for the production of organic acid esters of cellulose | |
| GB471894A (en) | Improvements in the manufacture of mixed esters of cellulose | |
| GB496887A (en) | Improvements in or relating to the manufacture of cellulose | |
| GB358980A (en) | Process for working up crude cellulose ester solutions | |
| GB489720A (en) | Improvements in or relating to the manufacture of cellulose esters | |
| GB185433A (en) | Improvements in the preliminary treatment of cellulose intended for the manufacture of viscose | |
| GB419763A (en) | Manufacture of cellulose esters | |
| GB364794A (en) | Improved process of acetylating cellulose | |
| GB217095A (en) | A process for hardening wood | |
| GB478716A (en) | Process for the manufacture of highly acetylated cellulose | |
| GB441919A (en) | Improvements in the manufacture and production of nitrodibenzanthrones |