GB563991A - Improvements in or relating to the production of polyvinyl compounds - Google Patents
Improvements in or relating to the production of polyvinyl compoundsInfo
- Publication number
- GB563991A GB563991A GB729743A GB729743A GB563991A GB 563991 A GB563991 A GB 563991A GB 729743 A GB729743 A GB 729743A GB 729743 A GB729743 A GB 729743A GB 563991 A GB563991 A GB 563991A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- per cent
- acetate
- polyvinyl
- dispersible
- 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
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/12—Hydrolysis
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Polyvinyl esters, e.g. polyvinyl chloride, acetate or butyrate, are saponified in a medium comprising an alkali, a lower aliphatic alcohol and water in an amount of 1 to 10 per cent of the total weight of liquid to yield products soluble or dispersible in water. The original esters may be partial esters containing hydroxyl groups; the amount of base is preferably small, e.g. 0.5-2 and preferably 0.5-1 per cent of weight of the ester. In examples, polyvinyl acetate (100 per cent acetate) is refluxed with methyl alcohol until dissolved, the solution then mixed with caustic soda dissolved in aqueous methyl alcohol and the mixture vigorously stirred at 50 DEG C. until the saponified compound separates out. The products are useful for the manufacture of yarns &c. soluble or dispersible in water, e.g. as described in Specification 563,960.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB729743A GB563991A (en) | 1941-11-21 | 1941-11-21 | Improvements in or relating to the production of polyvinyl compounds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB729743A GB563991A (en) | 1941-11-21 | 1941-11-21 | Improvements in or relating to the production of polyvinyl compounds |
Publications (1)
Publication Number | Publication Date |
---|---|
GB563991A true GB563991A (en) | 1944-09-07 |
Family
ID=9830407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB729743A Expired GB563991A (en) | 1941-11-21 | 1941-11-21 | Improvements in or relating to the production of polyvinyl compounds |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB563991A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2513488A (en) * | 1949-06-17 | 1950-07-04 | Du Pont | Methanolysis of polyvinyl esters |
US2640816A (en) * | 1952-05-03 | 1953-06-02 | Shawinigan Chem Ltd | Preparation of solutions of polyvinyl alcohol-acetate |
-
1941
- 1941-11-21 GB GB729743A patent/GB563991A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2513488A (en) * | 1949-06-17 | 1950-07-04 | Du Pont | Methanolysis of polyvinyl esters |
US2640816A (en) * | 1952-05-03 | 1953-06-02 | Shawinigan Chem Ltd | Preparation of solutions of polyvinyl alcohol-acetate |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB651412A (en) | Improvements in or relating to process of preparing procaine penicillin and the product resulting therefrom | |
GB623669A (en) | Manufacture of glycol esters of terephthalic acid | |
GB476314A (en) | Improved treatment of polyvinyl alcohols or their partial derivatives | |
GB563991A (en) | Improvements in or relating to the production of polyvinyl compounds | |
ES248326A1 (en) | Paper sizing agents | |
GB1198829A (en) | Process for Preparing Pyrryl-(2)-Acetic Acid Esters | |
GB991550A (en) | Process for the manufacture of stable aqueous dispersions of copolymers of vinyl esters of organic acids and ethylene | |
GB639173A (en) | Improvements in or relating to aqueous solutions containing soapless detergents | |
US2082804A (en) | Preparation of metallic salts of dicarboxylic acid esters of cellulose | |
GB539893A (en) | Improvements in the preparation of water-soluble derivatives of 2-sulfanilylamidopyridine | |
GB620733A (en) | Improvements in and relating to carbazole derivatives | |
GB415472A (en) | Improvements in or relating to the manufacture of oxalic acid and esters thereof | |
GB515756A (en) | Manufacture of ª‡-chloro-ª‰-alkoxybutyraldehydes | |
GB744543A (en) | Improvements in and relating to the production of cyclohexa-1,4-diene-1,4-dicarboxylic acid and esters thereof | |
GB682823A (en) | Manufacture of 3:3-carbalkoxy-methylene-bis-(4-hydroxy-coumarins) | |
GB177809A (en) | Manufacture of cellulose derivatives | |
GB349455A (en) | Improvements relating to barbituric acid derivatives | |
GB706440A (en) | Improvements in or relating to trichloroacetic acid, esters of trichloroacetic acid and salts of trichloroacetic acid | |
GB697290A (en) | A new composition containing hydrofluoric acid | |
GB516542A (en) | Manufacture of cyclopentanopolyhydrophenanthrene derivatives | |
GB495050A (en) | Process for the production of 2-keto-ª•-gulonic acid | |
GB590130A (en) | Improvements relating to ethyl cellulose moulding compositions and articles producedtherefrom | |
GB539279A (en) | Improvements in or relating to the production of organic esters of cellulose | |
GB547409A (en) | Process for the preparation of 4-acetamido-2-hydroxyphenylarsenoxide | |
GB968870A (en) | Esters of the androstane series and process for their manufacture |