AT252955B - Verfahren zur Herstellung klarer Lösungen von Hydroxyäthylcellulose in wässeriger Natronlauge - Google Patents
Verfahren zur Herstellung klarer Lösungen von Hydroxyäthylcellulose in wässeriger NatronlaugeInfo
- Publication number
- AT252955B AT252955B AT814263A AT814263A AT252955B AT 252955 B AT252955 B AT 252955B AT 814263 A AT814263 A AT 814263A AT 814263 A AT814263 A AT 814263A AT 252955 B AT252955 B AT 252955B
- Authority
- AT
- Austria
- Prior art keywords
- preparation
- sodium hydroxide
- aqueous sodium
- hydroxide solution
- hydroxyethyl cellulose
- Prior art date
Links
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 title 3
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 title 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 title 1
- 235000019447 hydroxyethyl cellulose Nutrition 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Artificial Filaments (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US234127A US3312685A (en) | 1962-10-30 | 1962-10-30 | Solubilizing hydroxyethylcellulose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT252955B true AT252955B (de) | 1967-03-10 |
Family
ID=22880043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT814263A AT252955B (de) | 1962-10-30 | 1963-10-10 | Verfahren zur Herstellung klarer Lösungen von Hydroxyäthylcellulose in wässeriger Natronlauge |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3312685A (de) |
| AT (1) | AT252955B (de) |
| CH (1) | CH458722A (de) |
| DE (1) | DE1470945C3 (de) |
| ES (1) | ES288246A1 (de) |
| GB (1) | GB970836A (de) |
| NL (1) | NL292906A (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003298827A1 (en) * | 2002-12-04 | 2004-06-23 | Cerus Corporation | Methods for preparing antigen masked red blood cells having reduced hemolysis by sera |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2036257A (en) * | 1932-09-29 | 1936-04-07 | Ici Ltd | Cellulose derivative solutions and process of making the same |
| US2090808A (en) * | 1934-02-10 | 1937-08-24 | Brown Co | Activation of hydroxy-cellulose ethers |
| GB729440A (en) * | 1951-12-18 | 1955-05-04 | Courtaulds Ltd | Improvements in and relating to apparatus for the de-aeration of viscous liquids |
| US2763030A (en) * | 1953-05-07 | 1956-09-18 | Erickson Donald Robert | Method of precipitating and forming hydroxy alkyl cellulose into films |
-
0
- NL NL292906D patent/NL292906A/xx unknown
-
1962
- 1962-10-30 US US234127A patent/US3312685A/en not_active Expired - Lifetime
-
1963
- 1963-05-08 GB GB18238/63A patent/GB970836A/en not_active Expired
- 1963-06-07 CH CH713863A patent/CH458722A/fr unknown
- 1963-06-22 ES ES288246A patent/ES288246A1/es not_active Expired
- 1963-10-10 AT AT814263A patent/AT252955B/de active
- 1963-10-24 DE DE1470945A patent/DE1470945C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL292906A (de) | |
| DE1470945B2 (de) | 1973-05-24 |
| GB970836A (en) | 1964-09-23 |
| ES288246A1 (es) | 1963-11-01 |
| DE1470945C3 (de) | 1973-12-20 |
| US3312685A (en) | 1967-04-04 |
| DE1470945A1 (de) | 1969-06-26 |
| CH458722A (fr) | 1968-06-30 |
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