GB722790A - Copolymers - Google Patents
CopolymersInfo
- Publication number
- GB722790A GB722790A GB22374/52A GB2237452A GB722790A GB 722790 A GB722790 A GB 722790A GB 22374/52 A GB22374/52 A GB 22374/52A GB 2237452 A GB2237452 A GB 2237452A GB 722790 A GB722790 A GB 722790A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium
- copolymers
- polymerization
- acrylonitrile
- initiator
- 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
- C08F220/00—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
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/42—Nitriles
- C08F220/44—Acrylonitrile
Abstract
Copolymers are prepared from acrylonitrile and N-vinyl pyrrolidone. Polymerization is preferably effected by mixing the monomers in appropriate proportions, adding an aqueous solution of a polymerization initiator, and agitating the reaction mixture at a suitable temperature to produce the copolymer in the form of a flocculent precipitate. The copolymers may also be obtained by bulk or emulsion polymerization. Polymerization initiators specified are benzoyl peroxide, tertiary butyl hydroperoxide, azo bis-isobutyronitrile, potassium persulphate, sodium perborate, hydrogen peroxide and ammonium persulphate. Activators for the initiator may be employed, those specified being sodium metabisulphite, sodium bisulphite, sodium hyposulphite, sodium hydrosulphide, thioglycollic acid, hydroxylamine hydrochloride, hydroquinone, pyrogallol, cuprous chloride, silver nitrate and finely powdered copper, silver, iron and nickel. Copolymers containing at least 49 per cent acrylonitrile may be dissolved in nitromethane, p-cresol, formic acid or dimethyl sulpholane to form spinning solutions from which may be produced filaments which can be dyed with dyes of the kind used in dyeing regenerated cellulose or cellulose acetate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US722790XA | 1951-09-07 | 1951-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB722790A true GB722790A (en) | 1955-01-26 |
Family
ID=22106625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22374/52A Expired GB722790A (en) | 1951-09-07 | 1952-09-05 | Copolymers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB722790A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3166525A (en) * | 1959-05-11 | 1965-01-19 | Gen Aniline & Film Corp | Copolymers of n-vinyl-2-pyrrolidones and vinyl esters as emulsions or latices |
| US4764575A (en) * | 1985-11-25 | 1988-08-16 | Highgate Donald J | Hydrophilic materials |
-
1952
- 1952-09-05 GB GB22374/52A patent/GB722790A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3166525A (en) * | 1959-05-11 | 1965-01-19 | Gen Aniline & Film Corp | Copolymers of n-vinyl-2-pyrrolidones and vinyl esters as emulsions or latices |
| US4764575A (en) * | 1985-11-25 | 1988-08-16 | Highgate Donald J | Hydrophilic materials |
| US4900764A (en) * | 1985-11-25 | 1990-02-13 | Highgate Donald J | Hydrophilic materials |
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