GB203346A - Manufacture of cellulose derivatives - Google Patents
Manufacture of cellulose derivativesInfo
- Publication number
- GB203346A GB203346A GB22160/23A GB2216023A GB203346A GB 203346 A GB203346 A GB 203346A GB 22160/23 A GB22160/23 A GB 22160/23A GB 2216023 A GB2216023 A GB 2216023A GB 203346 A GB203346 A GB 203346A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cellulose
- alkali
- solid caustic
- kneading
- weight
- 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
- C08B11/00—Preparation of cellulose ethers
- C08B11/02—Alkyl or cycloalkyl ethers
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)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The alkyl-derivatives of cellulose which are soluble in alkali solutions but not in water, described in Specification 177,810, are prepared by heating cellulose or an alkali-insoluble conversion product of cellulose with an alkylating-agent in the presence of a quantity of solid caustic which is less than the weight of the air-dried starting material, say, less than 75 per cent of such weight. The cellulose &c. is mixed with the solid caustic alkali preferably in powder form, or with a mixture of solid caustic alkali and saturated alkali lye, in a shredder, edge runner, or kneading-machine, and the mass heated with the alkylating agent, the conditions to be observed in the reaction being for instance those laid down in the Specificacation above referred to. If the kneading of the cellulose and caustic alkali is carried out with access of air, the mass will take up moisture therefrom. Reference has been directed by the Comptroller to Specification 163,018.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT203346X | 1921-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB203346A true GB203346A (en) | 1923-10-01 |
Family
ID=3669564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22160/23A Expired GB203346A (en) | 1921-04-02 | 1922-04-01 | Manufacture of cellulose derivatives |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB203346A (en) |
-
1922
- 1922-04-01 GB GB22160/23A patent/GB203346A/en not_active Expired
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