GB423062A - Process for the production of cellulose acetate soluble in acetone - Google Patents
Process for the production of cellulose acetate soluble in acetoneInfo
- Publication number
- GB423062A GB423062A GB3416533A GB3416533A GB423062A GB 423062 A GB423062 A GB 423062A GB 3416533 A GB3416533 A GB 3416533A GB 3416533 A GB3416533 A GB 3416533A GB 423062 A GB423062 A GB 423062A
- Authority
- GB
- United Kingdom
- Prior art keywords
- triacetate
- production
- cellulose acetate
- acetone
- fibrous
- 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
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
In a process for the production of acetone soluble cellulose acetate from fibrous or precipitated cellulose triacetate, particularly cellulose triacetate produced according to Specification 381,991, the triacetate is treated with a 20--75 per cent aqueous solution of pyridine which swells but does not dissolve the triacetate. The ripening process is carried out at a temperature less than 150 DEG C. and preferably between 25 DEG C. and 100 DEG C. In a specific example, 1 part of fibrous or precipitated cellulose triacetate is swollen and hydrolized by heating it for about 8 hours at 60--80 DEG C. in 12 parts of aqueous pyridine of 50 per cent strength and is separated, washed, stabilized, and dried. Specification 402,692 also is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3416533A GB423062A (en) | 1933-12-05 | 1933-12-05 | Process for the production of cellulose acetate soluble in acetone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3416533A GB423062A (en) | 1933-12-05 | 1933-12-05 | Process for the production of cellulose acetate soluble in acetone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB423062A true GB423062A (en) | 1935-01-24 |
Family
ID=10362198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3416533A Expired GB423062A (en) | 1933-12-05 | 1933-12-05 | Process for the production of cellulose acetate soluble in acetone |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB423062A (en) |
-
1933
- 1933-12-05 GB GB3416533A patent/GB423062A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB427626A (en) | Improvements in or relating to the manufacture of cellulose | |
| GB576510A (en) | Improvements in or relating to the production of cellulose | |
| GB497771A (en) | A process for the preparation of wash out reliefs | |
| GB423062A (en) | Process for the production of cellulose acetate soluble in acetone | |
| US1831101A (en) | Treatment of materials consisting substantially of cellulose and the production of cellulose esters therefrom | |
| US1834040A (en) | Process for reducing the viscosity characteristics of cellulose ethers | |
| GB474475A (en) | Improvements in or relating to the making of pectin-containing extracts | |
| GB368271A (en) | Manufacture of cellulose derivatives | |
| GB415329A (en) | Process for stabilising cellulose esters | |
| GB427386A (en) | Refined ethers of polysaccharides and processes of making same | |
| GB364794A (en) | Improved process of acetylating cellulose | |
| GB343712A (en) | Improvements in or relating to processes for the production of organic acid esters of cellulose | |
| GB344151A (en) | Manufacture of cellulose esters | |
| GB348292A (en) | Improved process for the manufacture of cellulose acetates | |
| GB488683A (en) | New or improved process for the production of starch for food purposes | |
| GB472974A (en) | Process of treating vegetable matter containing protopectin | |
| GB380822A (en) | Manufacture of cellulose esters | |
| GB301036A (en) | ||
| GB310434A (en) | Process of preparing partially hydrolysed cellulose acetates and of articles made therefrom | |
| GB165743A (en) | Method of manufacture of raw alkali-cellulose for working into viscose | |
| CA308394A (en) | Process of extracting formic acid from lye resulting from the purification of vegetable cellulose | |
| GB402692A (en) | Improvements relating to the production of cellulose triacetate | |
| GB571010A (en) | Improvements in the production of organic esters of cellulose | |
| GB294415A (en) | Improvements in the manufacture of cellulose acetate | |
| GB258020A (en) | Improvements in or relating to the manufacture of cellulose acetate |