GB523191A - Improvements in manufacture of cellulose ethers - Google Patents
Improvements in manufacture of cellulose ethersInfo
- Publication number
- GB523191A GB523191A GB10673/39A GB1067339A GB523191A GB 523191 A GB523191 A GB 523191A GB 10673/39 A GB10673/39 A GB 10673/39A GB 1067339 A GB1067339 A GB 1067339A GB 523191 A GB523191 A GB 523191A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inches
- chipped
- chips
- sheet
- mixed
- 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
523,191. Cellulose ethers. HERCULES POWDER CO. April 5, 1939, No. 10673. Convention date, Aug. 25, 1938. [Class 2 (ii)] Lengths chipped from a sheet of lightly felted cellulosic material according to the method of Specification 463,437, are subjected to treatment with an aqueous alkaline solution and an alkylating agent and converted into a cellulose ether. The chipped cellulosic material may be mixed with the alkali solution without any prior mastication treatment. The chipped material may be mixed with the alkali solution and alkyl halide at the same time. The sheet from which the chips are obtained may be formed from cotton-linters or wood-pulp. It may be of high alpha-cellulose content. The chips may have a thickness of 0.01 inches, a width of 0.015 inches, and a length up to about 2 inches. Methyl chloride, dimethyl sulphate, ethyl bromide, propyl chloride, or butyl chloride, or other alkylating agent may be used. Diluents or solvents such as alcohol, benzene, toluene, or dioxane may be present. The reaction may be carried out in an autoclave and at raised temperature.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US523191XA | 1938-08-25 | 1938-08-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB523191A true GB523191A (en) | 1940-07-08 |
Family
ID=21976822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10673/39A Expired GB523191A (en) | 1938-08-25 | 1939-04-05 | Improvements in manufacture of cellulose ethers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB523191A (en) |
-
1939
- 1939-04-05 GB GB10673/39A patent/GB523191A/en not_active Expired
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