GB570329A - Improvements in or relating to the emulsion polymerisation and copolymerisation of methyl alpha-chloroacrylate - Google Patents
Improvements in or relating to the emulsion polymerisation and copolymerisation of methyl alpha-chloroacrylateInfo
- Publication number
- GB570329A GB570329A GB620/43A GB62043A GB570329A GB 570329 A GB570329 A GB 570329A GB 620/43 A GB620/43 A GB 620/43A GB 62043 A GB62043 A GB 62043A GB 570329 A GB570329 A GB 570329A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methyl
- chloroacrylate
- acid
- vinyl
- long chain
- 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
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/10—Esters
- C08F20/22—Esters containing halogen
Landscapes
- 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
Methyl alpha-chloroacrylate is polymerized in emulsion at a temperature between the freezing point of the emulsion and 80 DEG C. The aqueous medium contains a dissolved salt of perdisulphuric acid and an "acid-stable" dispersing agent comprising a long chain acyclic hydrocarbon substituted with only one radical which is either -SO2OX or -OSO2OX where X is an alkali metal. "Acid-stable" refers to agents whose activity is unaffected in media of pH 3 to 5, e.g. excludes soaps. The process is equally applicable to the copolymerization of methyl a -chloroacrylate with one or more other polymerizable compounds which contain a single ethylenic linkage. As dispersing agents a list of long chain alkyl acid sulphates and sulphonates is given. The polymerization system may also contain inorganic salts, long chain primary alcohols, carbohydrate derivatives and polyvinyl alcohol. Polymerizable materials include esters of acrylic and methacrylic acids, (list); acrylo- and methacrylamides or mono-alkyl substitution products thereof; unsaturated ketones, e.g. methyl vinyl, phenyl vinyl and methyl isopropenyl ketones; and vinyl carboxylates, e.g. vinyl acetate, propionate and stearate. In examples the catalyst is ammonium perdisulphate and the dispersing agent sodium cetyl sulphate or the sodium salt of sulphonated paraffin oil, and the polymerization is described of methyl a -chloroacrylate alone or together with (1) methyl acrylate, (2) butyl methacrylate, (3) vinyl acetate, (4) diethyl itaconate, (5) furylethylene, and (6) unsymmetrical dichlorethylene. Specification 570,330 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US570329XA | 1942-01-15 | 1942-01-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB570329A true GB570329A (en) | 1945-07-03 |
Family
ID=22008078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB620/43A Expired GB570329A (en) | 1942-01-15 | 1943-01-13 | Improvements in or relating to the emulsion polymerisation and copolymerisation of methyl alpha-chloroacrylate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB570329A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6884760B1 (en) | 1999-06-18 | 2005-04-26 | M-I, L.L.C. | Water based wellbore fluids |
-
1943
- 1943-01-13 GB GB620/43A patent/GB570329A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6884760B1 (en) | 1999-06-18 | 2005-04-26 | M-I, L.L.C. | Water based wellbore fluids |
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