NL6902834A - Cellulose ethers - Google Patents
Cellulose ethersInfo
- Publication number
- NL6902834A NL6902834A NL6902834A NL6902834A NL6902834A NL 6902834 A NL6902834 A NL 6902834A NL 6902834 A NL6902834 A NL 6902834A NL 6902834 A NL6902834 A NL 6902834A NL 6902834 A NL6902834 A NL 6902834A
- Authority
- NL
- Netherlands
- Prior art keywords
- hydroxy alkyl
- cellulose ethers
- reacting
- alkali metal
- metal hydroxide
- 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
- C08B11/193—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
- C08B11/02—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
- C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
- C08B11/10—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals
- C08B11/12—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals substituted with carboxylic radicals, e.g. carboxymethylcellulose [CMC]
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
Mixed carboxymethyl-hydroxy alkyl cellulose ethers, in which the hydroxy alkyl gps. contain 2-4 C, are prepared by reacting carboxymethyl celluose, an alkali metal hydroxide, and chloracetate, then reacting the product with a liquid proton-doanting acid. The cellulose deriv. is then reacted with an alkylene oxide (2-4C) in the presence of at least 0.01wt% of a catalyst, for example an alkali metal hydroxide, and a hydroxy alkyl ether. Cpds. are useful suspension stabilisers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL6902834A NL6902834A (en) | 1969-02-24 | 1969-02-24 | Cellulose ethers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL6902834A NL6902834A (en) | 1969-02-24 | 1969-02-24 | Cellulose ethers |
Publications (1)
Publication Number | Publication Date |
---|---|
NL6902834A true NL6902834A (en) | 1970-08-26 |
Family
ID=19806237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL6902834A NL6902834A (en) | 1969-02-24 | 1969-02-24 | Cellulose ethers |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL6902834A (en) |
-
1969
- 1969-02-24 NL NL6902834A patent/NL6902834A/en unknown
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