PL128569B1 - Method of obtaining thermoplastic phenol-formaldehyde resins - Google Patents
Method of obtaining thermoplastic phenol-formaldehyde resins Download PDFInfo
- Publication number
- PL128569B1 PL128569B1 PL23046881A PL23046881A PL128569B1 PL 128569 B1 PL128569 B1 PL 128569B1 PL 23046881 A PL23046881 A PL 23046881A PL 23046881 A PL23046881 A PL 23046881A PL 128569 B1 PL128569 B1 PL 128569B1
- Authority
- PL
- Poland
- Prior art keywords
- formaldehyde resins
- thermoplastic phenol
- obtaining thermoplastic
- phenol
- weight
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims 3
- 229920001568 phenolic resin Polymers 0.000 title 1
- 229920001169 thermoplastic Polymers 0.000 title 1
- 239000004416 thermosoftening plastic Substances 0.000 title 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims 1
- 238000009835 boiling Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 230000003750 conditioning effect Effects 0.000 claims 1
- 239000011541 reaction mixture Substances 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
Landscapes
- Phenolic Resins Or Amino Resins (AREA)
Claims (1)
1. Zastrzezenia patentowe Sposób wytwarzania zywic noY.olakowych do tloczyw na drodze kondensacji fenolu z formaldehydem w. srodowisku kwasnym, znamienny t y a, za kondensacje prowadzi przy stosunku molowym fenolu do formaldehydu jak 0,8-0,9x1 w obacnesci kwasu szczawiowego jako katalizatora, uzytego w ilosci 0,3 - 1*4 % wag* korzystnie 0,6 - 0,8 % wag* w stosunku io zawartosci fenolu, przy czym proces kondansacji prowadzi sie w temperaturze wrzenia mieszaniny reakcyjnej az do momentu ^zjskania produktu o wspólczynniku zalamania swiatla9 n~ = 1,605 ± 0,006, po czym przerywa sie proces kondensacji i otrzymana zywice odwadnia w znany sposób pod obnizonym cisni3niem* PL
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL23046881A PL128569B1 (en) | 1981-03-31 | 1981-03-31 | Method of obtaining thermoplastic phenol-formaldehyde resins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL23046881A PL128569B1 (en) | 1981-03-31 | 1981-03-31 | Method of obtaining thermoplastic phenol-formaldehyde resins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL230468A1 PL230468A1 (pl) | 1982-10-11 |
| PL128569B1 true PL128569B1 (en) | 1984-02-29 |
Family
ID=20007915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL23046881A PL128569B1 (en) | 1981-03-31 | 1981-03-31 | Method of obtaining thermoplastic phenol-formaldehyde resins |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL128569B1 (pl) |
-
1981
- 1981-03-31 PL PL23046881A patent/PL128569B1/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL230468A1 (pl) | 1982-10-11 |
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