AT238726B - Verfahren zur Herstellung von Hydroxyäthylcellulose erniedrigten Polymerisationsgrades - Google Patents
Verfahren zur Herstellung von Hydroxyäthylcellulose erniedrigten PolymerisationsgradesInfo
- Publication number
- AT238726B AT238726B AT898362A AT898362A AT238726B AT 238726 B AT238726 B AT 238726B AT 898362 A AT898362 A AT 898362A AT 898362 A AT898362 A AT 898362A AT 238726 B AT238726 B AT 238726B
- Authority
- AT
- Austria
- Prior art keywords
- polymerization
- production
- hydroxyethyl cellulose
- reduced degree
- degree
- Prior art date
Links
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 title 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 title 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000006116 polymerization reaction Methods 0.000 title 1
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
- C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
-
- 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
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
- D01F2/08—Composition of the spinning solution or the bath
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Catalysts (AREA)
- Glass Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US188835A US3296248A (en) | 1962-04-19 | 1962-04-19 | Process of oxidative aging of hydroxyethylcellulose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT238726B true AT238726B (de) | 1965-02-25 |
Family
ID=22694729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT898362A AT238726B (de) | 1962-04-19 | 1962-11-15 | Verfahren zur Herstellung von Hydroxyäthylcellulose erniedrigten Polymerisationsgrades |
Country Status (8)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3498971A (en) * | 1967-02-13 | 1970-03-03 | Allied Chem | Process for the preparation of sodium carboxymethylcellulose |
| DE2917104A1 (de) * | 1979-04-27 | 1980-11-06 | Hoechst Ag | Verfahren zur viskositaetserniedrigung von celluloseethern durch ozon und seine verwendung |
| FI895708A0 (fi) * | 1989-02-10 | 1989-11-29 | Alko Ab Oy | Vattenloeslig soenderdelningsprodukt. |
| US5366755A (en) * | 1989-02-10 | 1994-11-22 | Maritta Timonen | Foodstuffs containing novel degraded cellulose derivatives |
| ATE167488T1 (de) * | 1990-07-02 | 1998-07-15 | Aqualon Co | Niedrigviskose-polysaccharidzusammensetzung mit hohem festkörpergehalt |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2512338A (en) * | 1947-04-29 | 1950-06-20 | Hercules Powder Co Ltd | Preparation of cellulose ethers |
| US2682536A (en) * | 1952-05-22 | 1954-06-29 | Rayonier Inc | Aging alkali cellulose |
| US2841579A (en) * | 1954-04-06 | 1958-07-01 | Int Paper Canada | Depolymerization of cellulose in alkaline medium |
| US2847411A (en) * | 1955-02-15 | 1958-08-12 | Rayonier Inc | Process for producing hydroxyethoxycellulose |
-
0
- BE BE626042D patent/BE626042A/xx unknown
-
1962
- 1962-04-19 US US188835A patent/US3296248A/en not_active Expired - Lifetime
- 1962-10-10 GB GB38404/62A patent/GB948248A/en not_active Expired
- 1962-10-20 ES ES281718A patent/ES281718A1/es not_active Expired
- 1962-11-15 AT AT898362A patent/AT238726B/de active
- 1962-11-26 CH CH1387862A patent/CH423225A/fr unknown
- 1962-12-10 FR FR918037D patent/FR1345271A/fr not_active Expired
-
1963
- 1963-04-11 DE DE19631468538 patent/DE1468538A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| BE626042A (US20020193084A1-20021219-M00002.png) | |
| FR1345271A (fr) | 1963-12-06 |
| US3296248A (en) | 1967-01-03 |
| ES281718A1 (es) | 1963-01-16 |
| CH423225A (fr) | 1966-10-31 |
| GB948248A (en) | 1964-01-29 |
| DE1468538A1 (de) | 1968-12-19 |
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