GB360311A - Manufacture of mixed cellulose esters derived from both nitric acid and a fatty acid - Google Patents
Manufacture of mixed cellulose esters derived from both nitric acid and a fatty acidInfo
- Publication number
- GB360311A GB360311A GB5790/31A GB579031A GB360311A GB 360311 A GB360311 A GB 360311A GB 5790/31 A GB5790/31 A GB 5790/31A GB 579031 A GB579031 A GB 579031A GB 360311 A GB360311 A GB 360311A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- fatty acid
- chloride
- per cent
- thionyl chloride
- 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)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Artificial Filaments (AREA)
Abstract
Cellulose nitrate-carboxylates are produced by reacting on a fatty acid, if desired with addition of its anhydride, in the presence of a cellulose nitrate containing at least two nitrate groups to the molecule, with a substance which transforms the fatty acid into its acid chloride. Examples of such substances are thionyl chloride, sulphuryl chloride, phosphorus oxychloride, phosphorus trichloride or pentachloride, and phosgene. The reaction, which is preferably carried out in the presence of a small quantity of water, proceeds with the partial elimination of the nitrate groups. In an example, collodion cotton containing 11,1 per cent of nitrogen is dissolved in glacial acetic acid, and thionyl chloride is added. The product is separated in flakes by pouring into water and contains 5,2 per cent of nitrogen. According to a further example in which the original structure of the fibre is retained, collodion cotton having a 20 per cent moisture content is introduced into a solution in benzene of acetic anhydride and acetic acid, to which has been added thionyl chloride and sulphuryl chloride. The products may be converted into artificial threads, films and the like.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE360311X | 1930-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB360311A true GB360311A (en) | 1931-11-05 |
Family
ID=6293160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5790/31A Expired GB360311A (en) | 1930-02-24 | 1931-02-24 | Manufacture of mixed cellulose esters derived from both nitric acid and a fatty acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB360311A (en) |
-
1931
- 1931-02-24 GB GB5790/31A patent/GB360311A/en not_active Expired
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