RO92130B - Procedeu pentru prepararea copolimerilor pe baza de stiren - Google Patents
Procedeu pentru prepararea copolimerilor pe baza de stirenInfo
- Publication number
- RO92130B RO92130B RO112409A RO11240983A RO92130B RO 92130 B RO92130 B RO 92130B RO 112409 A RO112409 A RO 112409A RO 11240983 A RO11240983 A RO 11240983A RO 92130 B RO92130 B RO 92130B
- Authority
- RO
- Romania
- Prior art keywords
- mass
- reactors
- styrene
- cooling
- cascade
- Prior art date
Links
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 title abstract 5
- 229920001577 copolymer Polymers 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000001816 cooling Methods 0.000 abstract 3
- 238000001704 evaporation Methods 0.000 abstract 2
- 238000006116 polymerization reaction Methods 0.000 abstract 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 abstract 1
- 229920001893 acrylonitrile styrene Polymers 0.000 abstract 1
- 150000008360 acrylonitriles Chemical class 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000007334 copolymerization reaction Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 abstract 1
- 230000003134 recirculating effect Effects 0.000 abstract 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Abstract
Inventia de fata se refera la un procedeu pentru prepararea copolimerilor de baza de stiren prin copolimerilor a amestecului de acrilonitril stiren si/sau metacrilat de metil sau prin copolimerizarea în masa a stirenului cu acrilonitril modificat cucauciuc la temperatura de 90..135 degree C într-o cascada de n reactoare complet umplute, unde n este 1..8, de preferinta 2..4 prin departarea continua a unei parti din masa de polimerizare din n-m reactoare, într-o zona de racire legata cu fiecare din acestea cu conditia ca atunci cand n este 1, m sa fie zero, cand n este 2, m sa fie zero sau 1 si cand n este 3..8 m, sa fie 1 sau 2, proportia între cantitatea masei de îndepartat si capacitatea cascadei fiind 1/1..15/1. de preferinta 2/1..12/1, racirea acestei mase prin evaporarea unei parti din componenta cu punct de fierbere coborat cu masa de polimerizare îndepartata si recircularea masei de polimerizare racite în reactorul respectiv, procesul de recirculare a portiunii scoase din reactorsi supusa racirii fiind astfel încat continutul în polimer în masa de reactie sa fie 28..75%, presiunea de evaporare sa fie 0,065..0,080 MPa, temperatura la iesirea din evaporator sa fie 75..125 degree C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO112409A RO92130B (ro) | 1983-10-25 | 1983-10-25 | Procedeu pentru prepararea copolimerilor pe baza de stiren |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833338736 DE3338736A1 (de) | 1983-10-25 | 1983-10-25 | Kontinuierliches verfahren zur herstellung von copolymeren |
| RO112409A RO92130B (ro) | 1983-10-25 | 1983-10-25 | Procedeu pentru prepararea copolimerilor pe baza de stiren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO92130A RO92130A (ro) | 1987-07-30 |
| RO92130B true RO92130B (ro) | 1987-07-31 |
Family
ID=25815125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO112409A RO92130B (ro) | 1983-10-25 | 1983-10-25 | Procedeu pentru prepararea copolimerilor pe baza de stiren |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO92130B (ro) |
-
1983
- 1983-10-25 RO RO112409A patent/RO92130B/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO92130A (ro) | 1987-07-30 |
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