CH469030A - Verfahren zur Herstellung von wasserlöslichen Celluloseäthern - Google Patents
Verfahren zur Herstellung von wasserlöslichen CelluloseäthernInfo
- Publication number
- CH469030A CH469030A CH787164A CH787164A CH469030A CH 469030 A CH469030 A CH 469030A CH 787164 A CH787164 A CH 787164A CH 787164 A CH787164 A CH 787164A CH 469030 A CH469030 A CH 469030A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- water
- cellulose ethers
- soluble cellulose
- soluble
- Prior art date
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
- C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
- C08B11/08—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals thereof
-
- 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
-
- 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
- C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
- C08B11/14—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with nitrogen-containing groups
- C08B11/155—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with nitrogen-containing groups with cyano groups, e.g. cyanoalkyl ethers
-
- 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
- C08B11/193—Mixed ethers, i.e. ethers with two or more different etherifying groups
-
- 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
- C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3222363 | 1963-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH469030A true CH469030A (de) | 1969-02-28 |
Family
ID=12352936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH787164A CH469030A (de) | 1963-06-19 | 1964-06-17 | Verfahren zur Herstellung von wasserlöslichen Celluloseäthern |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3355449A (de) |
| CH (1) | CH469030A (de) |
| DE (1) | DE1493247A1 (de) |
| GB (1) | GB1003662A (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4438262A (en) | 1981-10-06 | 1984-03-20 | Sumitomo Chemical Company, Limited | Highly dielectric polysaccharides |
| DE3151681A1 (de) * | 1981-12-28 | 1983-07-07 | Henkel KGaA, 4000 Düsseldorf | "hydroxyalkylcellulosen mit verbesserter stabilitaet gegen abbau, verfahren zu ihrer herstellung und ihre verwendung" |
| DE3316124A1 (de) * | 1983-05-03 | 1984-11-08 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von wasserloeslichen cellulosemischethern |
| US4456751A (en) * | 1983-09-22 | 1984-06-26 | The Dow Chemical Company | Multiple stage process for preparing mixed hydroxyalkylcellulose ethers |
| EP1401873A1 (de) * | 2001-05-21 | 2004-03-31 | Dow Global Technologies Inc. | Verfaren zur herstellung von alkylhydroxyalkylcelluloseethern |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2644818A (en) * | 1949-02-25 | 1953-07-07 | British Celanese | Manufacture of cellulose ethers |
| US2618632A (en) * | 1949-04-05 | 1952-11-18 | Hercules Powder Co Ltd | Mixed cellulose ether and preparation thereof |
-
1964
- 1964-06-10 US US374183A patent/US3355449A/en not_active Expired - Lifetime
- 1964-06-11 GB GB24367/64A patent/GB1003662A/en not_active Expired
- 1964-06-13 DE DE19641493247 patent/DE1493247A1/de not_active Withdrawn
- 1964-06-17 CH CH787164A patent/CH469030A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1493247A1 (de) | 1969-01-23 |
| US3355449A (en) | 1967-11-28 |
| GB1003662A (en) | 1965-09-08 |
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