GB1343804A - Method of preparing acrylonitrile polymers - Google Patents
Method of preparing acrylonitrile polymersInfo
- Publication number
- GB1343804A GB1343804A GB2298371A GB2298371A GB1343804A GB 1343804 A GB1343804 A GB 1343804A GB 2298371 A GB2298371 A GB 2298371A GB 2298371 A GB2298371 A GB 2298371A GB 1343804 A GB1343804 A GB 1343804A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium
- acrylonitrile
- catalyst components
- methyl acrylate
- sulphonate
- 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
- C08F20/42—Nitriles
- C08F20/44—Acrylonitrile
-
- 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
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
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
1343804 Polymerizing acrylonitrile MITSUBISHI RAYON CO Ltd 19 April 1971 [16 March 1970 6 May 1970] 22983/71 Heading C3P Acrylonitrile is polymerized, optionally with other copolymerizable monomers, using nitrous acid or salts thereof and reducing sulphoxy compounds as catalyst components, by a process wherein some or all of the catalyst components are continuously reacted in an aqueous medium at a pH of 1 to 7 and for a substantially constant time in the reaction system of 5 to 60 minutes, and the product is continuously fed together with any remaining catalyst components into a polymerization vessel during polymerization which is carried out in an aqueous medium at a pH of 1 to 3 and temperature of 40 to 60‹ C. Specified sulphoxy compounds are sulphurous acid and sodium, potassium and ammonium sulphites, bisulphites and metabisulphites; and specified comonomers are vinyl acetate, methyl acrylate, methyl methacrylate, methacrylonitrile, vinyl pyridines, sodium styrene sulphonate and sodium methallyl sulphonate. In examples (1, 2, 4 and 5) acrylonitrile, methyl acrylate and sodium methallyl sulphonate are copolymerized with catalysts continuously preformed from sodium nitrite and sodium metabisulphite; (3 and 6) acrylonitrile is polymerized with catalysts formed from sodium nitrite and sodium bisulphite; and (7 and 8) acrylonitrile, methyl acrylate and sodium methallyl sulphonate are copolymerized with catalysts formed from sodium nitrite and sulphurous acid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2154970A JPS4825745B1 (en) | 1970-03-16 | 1970-03-16 | |
| JP3848170A JPS4825746B1 (en) | 1970-05-06 | 1970-05-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1343804A true GB1343804A (en) | 1974-01-16 |
Family
ID=26358631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2298371A Expired GB1343804A (en) | 1970-03-16 | 1971-04-19 | Method of preparing acrylonitrile polymers |
Country Status (3)
| Country | Link |
|---|---|
| BG (1) | BG18621A3 (en) |
| BR (1) | BR7101538D0 (en) |
| GB (1) | GB1343804A (en) |
-
1971
- 1971-03-11 BR BR1538/71A patent/BR7101538D0/en unknown
- 1971-03-16 BG BG017063A patent/BG18621A3/en unknown
- 1971-04-19 GB GB2298371A patent/GB1343804A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BG18621A3 (en) | 1975-02-25 |
| BR7101538D0 (en) | 1973-05-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |