RO83610B1 - Procedeu de obtinere a polifenilenoxidului - Google Patents
Procedeu de obtinere a polifenilenoxiduluiInfo
- Publication number
- RO83610B1 RO83610B1 RO106180A RO10618081A RO83610B1 RO 83610 B1 RO83610 B1 RO 83610B1 RO 106180 A RO106180 A RO 106180A RO 10618081 A RO10618081 A RO 10618081A RO 83610 B1 RO83610 B1 RO 83610B1
- Authority
- RO
- Romania
- Prior art keywords
- polyphenylene oxide
- carried out
- preparing polyphenylene
- temperatures
- reaction
- Prior art date
Links
- 239000004721 Polyphenylene oxide Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 229920006380 polyphenylene oxide Polymers 0.000 title abstract 2
- 238000006116 polymerization reaction Methods 0.000 abstract 2
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- -1 aromatic transition metal Chemical class 0.000 abstract 1
- 125000003710 aryl alkyl group Chemical group 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000008034 disappearance Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000178 monomer Substances 0.000 abstract 1
- 238000005691 oxidative coupling reaction Methods 0.000 abstract 1
- 150000002989 phenols Chemical class 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 229910052723 transition metal Inorganic materials 0.000 abstract 1
Landscapes
- Polyethers (AREA)
Abstract
Inventia se refera la un procedeu de obtinere a polifenilenoxidului prin cuplarea oxidativa a fenolilor alchil, aril, sau aralchil substituiti, în prezenta unor complecsi catalitici, metale tranzitionale-amine alifatice sau aromatice, în care reactia de polimerizare este condusa în doua trepte de temperatura, si anume, în prima treapta utilizîndu-se temperaturile uzuale de polimerizare de la 0 la 30 degree C, iar treapta a doua de reactie fiind efectuata la temperaturi mai ridicate, respectiv de 40...80 degree C, ridicarea temperaturii fiind efectuata dupa disparitia monomerului din sistem, cînd polimerii formati au viscozitatea intrinseca...
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO106180A RO83610B1 (ro) | 1981-12-30 | 1981-12-30 | Procedeu de obtinere a polifenilenoxidului |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO106180A RO83610B1 (ro) | 1981-12-30 | 1981-12-30 | Procedeu de obtinere a polifenilenoxidului |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO83610A2 RO83610A2 (ro) | 1984-05-12 |
| RO83610B1 true RO83610B1 (ro) | 1984-06-30 |
Family
ID=20110864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO106180A RO83610B1 (ro) | 1981-12-30 | 1981-12-30 | Procedeu de obtinere a polifenilenoxidului |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO83610B1 (ro) |
-
1981
- 1981-12-30 RO RO106180A patent/RO83610B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO83610A2 (ro) | 1984-05-12 |
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