ES212109A1 - Polymerisation process - Google Patents
Polymerisation processInfo
- Publication number
- ES212109A1 ES212109A1 ES0212109A ES212109A ES212109A1 ES 212109 A1 ES212109 A1 ES 212109A1 ES 0212109 A ES0212109 A ES 0212109A ES 212109 A ES212109 A ES 212109A ES 212109 A1 ES212109 A1 ES 212109A1
- Authority
- ES
- Spain
- Prior art keywords
- molecular weight
- high molecular
- polymer
- aqueous
- polymerization
- 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
- C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
Abstract
Grafted acrylonitrile polymers are obtained by polymerizing acrylonitrile in aqueous medium alone or in the presence of not greater than 15 per cent of other copolymerizable materials, together with a water-soluble high molecular weight organic substance containing the C-H bond, having a molecular weight greater than 1000, so that the amount of high molecular weight substance in the grafted acrylonitrile polymer formed is between 5 and 40 per cent, then separating the polymer from the aqueous phase, the aqueous phase so separated, with, if desired, any aqueous washings of the polymer, being used again in polymerization. Water-soluble high molecular weight substances specified are polyvinyl alcohol, polyvinyl sulphonate, polyacrylic and polymethacrylic acids, polymethacrylamide, polyethylene oxide, starch, cellulose methyl ether, and gelatin. Copolymerizable monomers specified are vinyl acetate, vinyl chloride, esters of acrylic and methacrylic acids, e.g. methyl methacrylate, styrene, isobutylene, and 2-vinyl pyridine. Polymerization may be carried out in the presence of catalysts such as azo-di-isobutyronitrile, benzoyl peroxide, hydrogen peroxide, and persulphates, or a reduction activation pair such as ammonium persulphate and sodium metabisulphite. The aqueous medium may also contain sodium sulphate in order to obtain an p easily filterable product, ethyl alcohol, and dilute sulphuric acid. The process may be carried out batchwise or continuously, and yields polymers from which fibres may be formed. Specification 715,194 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3019752A GB733093A (en) | 1952-11-28 | 1952-11-28 | Polymerisation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES212109A1 true ES212109A1 (en) | 1955-02-16 |
Family
ID=10303814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0212109A Expired ES212109A1 (en) | 1952-11-28 | 1953-11-17 | Polymerisation process |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE524596A (en) |
| ES (1) | ES212109A1 (en) |
| FR (1) | FR1094976A (en) |
| GB (1) | GB733093A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1162342B (en) * | 1955-09-21 | 1964-02-06 | Polymer Corp | Process for grafting monomers onto polysaccharides and proteins or their derivatives |
| US2956884A (en) * | 1957-03-26 | 1960-10-18 | Eastman Kodak Co | Compositions of polyacrylates with gelatin and other proteins |
| NL114122C (en) * | 1959-03-13 | |||
| US3062760A (en) * | 1959-10-06 | 1962-11-06 | Electric Storage Battery Co | Method of producing a microporous polymeric resin |
| US3313749A (en) * | 1960-12-15 | 1967-04-11 | Staley Mfg Co A E | Method of producing a modified proteinethyleneically unsaturated monomer graft co-polymer |
| US4255532A (en) * | 1979-02-21 | 1981-03-10 | American Cyanamid Company | Acrylic polymer composition for melt-spinning |
-
0
- BE BE524596D patent/BE524596A/xx unknown
-
1952
- 1952-11-28 GB GB3019752A patent/GB733093A/en not_active Expired
-
1953
- 1953-11-17 ES ES0212109A patent/ES212109A1/en not_active Expired
- 1953-11-28 FR FR1094976D patent/FR1094976A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB733093A (en) | 1955-07-06 |
| BE524596A (en) | |
| FR1094976A (en) | 1955-05-25 |
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