RO91050B1 - Procedeu pentru obtinerea unor polimeri fenolformaldehidici pentru uz electrotehnic - Google Patents
Procedeu pentru obtinerea unor polimeri fenolformaldehidici pentru uz electrotehnicInfo
- Publication number
- RO91050B1 RO91050B1 RO116346A RO11634684A RO91050B1 RO 91050 B1 RO91050 B1 RO 91050B1 RO 116346 A RO116346 A RO 116346A RO 11634684 A RO11634684 A RO 11634684A RO 91050 B1 RO91050 B1 RO 91050B1
- Authority
- RO
- Romania
- Prior art keywords
- phenol
- electrotechnics
- formaldehyde polymers
- formaldehyde
- alkylphenol
- Prior art date
Links
- 229920000642 polymer Polymers 0.000 title abstract 5
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title abstract 4
- 229920001568 phenolic resin Polymers 0.000 title abstract 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000004254 Ammonium phosphate Substances 0.000 abstract 1
- -1 aliphatic alcohols Chemical class 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 abstract 1
- 235000019289 ammonium phosphates Nutrition 0.000 abstract 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000007928 solubilization Effects 0.000 abstract 1
- 238000005063 solubilization Methods 0.000 abstract 1
Landscapes
- Phenolic Resins Or Amino Resins (AREA)
Abstract
Prezenta inventie se refera la un procedeu pentru obtinerea de polimeri fenolformaldehidici cu înalte proprietati pentru obtinerea de polimeri fenolformaldehidici cu înalte proprietati pentru electrotehnica, recomandat pentru fabricarea de materiale stratificate si mase de presare, proprietati fizico-mecanice combinate cu o rezistenta la flacara si termica, îmbunatatite. Procedeul propus consta în obtinerea de polimeri fenolformaldehidici prin condensarea fenolului sau alchilfenolului la un raport molar formaldehida pe fenol sau alchilfenol de 0,75-2 si la un pH de 5,5-8,5 realizat cu acid fosforic sau cu fosfat de amoniu, în proportie de 5-35 parti si apoi solubilizarea polimerului obtinut cu un alfametilpirolidona: alcooli alifatici în proportie de 1/10-25 parti.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO116346A RO91050B1 (ro) | 1984-11-20 | 1984-11-20 | Procedeu pentru obtinerea unor polimeri fenolformaldehidici pentru uz electrotehnic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO116346A RO91050B1 (ro) | 1984-11-20 | 1984-11-20 | Procedeu pentru obtinerea unor polimeri fenolformaldehidici pentru uz electrotehnic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO91050A2 RO91050A2 (ro) | 1987-02-27 |
| RO91050B1 true RO91050B1 (ro) | 1987-02-28 |
Family
ID=20115848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO116346A RO91050B1 (ro) | 1984-11-20 | 1984-11-20 | Procedeu pentru obtinerea unor polimeri fenolformaldehidici pentru uz electrotehnic |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO91050B1 (ro) |
-
1984
- 1984-11-20 RO RO116346A patent/RO91050B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO91050A2 (ro) | 1987-02-27 |
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