GB798448A - Cold-sealing water-soluble thermoplastic cellulose ether composition - Google Patents
Cold-sealing water-soluble thermoplastic cellulose ether compositionInfo
- Publication number
- GB798448A GB798448A GB3165356A GB3165356A GB798448A GB 798448 A GB798448 A GB 798448A GB 3165356 A GB3165356 A GB 3165356A GB 3165356 A GB3165356 A GB 3165356A GB 798448 A GB798448 A GB 798448A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cellulose
- per cent
- methyl
- weight
- solvent
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/26—Cellulose ethers
- C08L1/28—Alkyl ethers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A thermoplastic composition comprises (1) 4-26 per cent by weight of a water-soluble alkyl hydroxyalkyl cellulose ether in which the number of carbon atoms in the alkyl group is 1-3 and the number of carbon atoms in the hydroxyalkyl group is 2 or 3; (2) 64-91 per cent by weight of a solvent for said ether above 100 DEG C.; and (3) 4-21 per cent by weight of a solvent for said ether below 50 DEG C. Specified cellulose ethers are methyl hydroxyethyl cellulose and methyl hydroxypropyl cellulose. The specified hot solvent is propylene glycol, and the specified cold solvents are water, ethylene carbonate, propylene carbonate and a 50 per cent aqueous solution of gluconic acid. A one-stage process for producing methyl hydroxypropyl or methyl hydroxyethyl cellulose is described in which alkali cellulose is treated simultaneously with methyl chloride and propylene oxide or ethylene oxide. Examples are given.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3165356A GB798448A (en) | 1956-10-17 | 1956-10-17 | Cold-sealing water-soluble thermoplastic cellulose ether composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3165356A GB798448A (en) | 1956-10-17 | 1956-10-17 | Cold-sealing water-soluble thermoplastic cellulose ether composition |
Publications (1)
Publication Number | Publication Date |
---|---|
GB798448A true GB798448A (en) | 1958-07-23 |
Family
ID=10326391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3165356A Expired GB798448A (en) | 1956-10-17 | 1956-10-17 | Cold-sealing water-soluble thermoplastic cellulose ether composition |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB798448A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4508895A (en) * | 1982-05-05 | 1985-04-02 | Bayer Aktiengesellschaft | Process for the production of hydroxyalkyl methyl celluloses |
-
1956
- 1956-10-17 GB GB3165356A patent/GB798448A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4508895A (en) * | 1982-05-05 | 1985-04-02 | Bayer Aktiengesellschaft | Process for the production of hydroxyalkyl methyl celluloses |
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