GB219926A - Process of manufacturing cellulose esters - Google Patents
Process of manufacturing cellulose estersInfo
- Publication number
- GB219926A GB219926A GB3112/24A GB311224A GB219926A GB 219926 A GB219926 A GB 219926A GB 3112/24 A GB3112/24 A GB 3112/24A GB 311224 A GB311224 A GB 311224A GB 219926 A GB219926 A GB 219926A
- Authority
- GB
- United Kingdom
- Prior art keywords
- higher fatty
- pyridine
- benzene
- esters containing
- referred
- 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
- C08B7/00—Preparation of cellulose esters of both organic and inorganic acids
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Cellulose esters containing both higher fatty acid radicals and nitric acid or other organic acid radicals are prepared by treating esters containing one or more of the last-mentioned groups with the acid chlorides of the higher fatty acids in the presence of pyridine and a diluent such as benzene. To separate the ester, the reaction mass is precipitated with alcohol, and the ester so separated may be purified by solution in benzene and re-precipitation with alcohol. In an example, di-nitrocellulose dissolved in pyridine is treated with lauryl chloride dissolved in toluene, and the mixture heated to 40-45 DEG C. Specification 201,510 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) includes the manufacture of carbohydrate esters by a process similar to that for the cellulose esters; and Specification 208,685, [Class 2 (iii), Dyes &c.], is referred to. This subject-matter does not appear in the Specification as accepted.ALSO:The Specification as open to inspection under Sect. 91 (3) (a) includes the manufacture of carbohydrate esters containing both higher fatty acid radicals and nitric acid or other organic acid radicals, by treating esters containing one or more of the last-mentioned groups with the acid chlorides of the higher fatty acids in the presence of pyridine and a diluent such as benzene. Specification 201,510 is referred to. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR219926X | 1923-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB219926A true GB219926A (en) | 1924-11-13 |
Family
ID=8881504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3112/24A Expired GB219926A (en) | 1923-07-31 | 1924-02-06 | Process of manufacturing cellulose esters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB219926A (en) |
-
1924
- 1924-02-06 GB GB3112/24A patent/GB219926A/en not_active Expired
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