PL419957A1 - Method for producing medium molecular weight epoxy resins - Google Patents
Method for producing medium molecular weight epoxy resinsInfo
- Publication number
- PL419957A1 PL419957A1 PL419957A PL41995716A PL419957A1 PL 419957 A1 PL419957 A1 PL 419957A1 PL 419957 A PL419957 A PL 419957A PL 41995716 A PL41995716 A PL 41995716A PL 419957 A1 PL419957 A1 PL 419957A1
- Authority
- PL
- Poland
- Prior art keywords
- water
- bisphenol
- isopropyl alcohol
- temperature
- mole
- Prior art date
Links
- 239000003822 epoxy resin Substances 0.000 title abstract 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 229920000647 polyepoxide Polymers 0.000 title abstract 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 abstract 15
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 abstract 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 6
- 229920005989 resin Polymers 0.000 abstract 3
- 239000011347 resin Substances 0.000 abstract 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- 238000007033 dehydrochlorination reaction Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 238000000746 purification Methods 0.000 abstract 2
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 abstract 1
- 239000012267 brine Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000012044 organic layer Substances 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
Landscapes
- Epoxy Resins (AREA)
Abstract
Przedmiotem zgłoszenia jest sposób wytwarzania średniocząsteczkowych żywic epoksydowych, który polega na tym, że proces prowadzi się wieloetapowo: etap addycji epichlorohydryny do bisfenolu A przy stosunku molowym 1,3 - 1,7 : 1 prowadzi się w temperaturze 70 - 85°C, w czasie 1 - 3 godzin, w obecności 0,05 - 0,25 mola wodorotlenku sodu na 1 mol bisfenolu A oraz mieszaniny toluenu, alkoholu izopropylowego i wody w ilości 100 - 150% w stosunku do masy bisfenolu A, zawierającej 25 - 55% alkoholu izopropylowego i nie więcej niż 10% wody, w etapie dehydrochlorowania do reaktora wprowadza się 1,15 - 1,75 mola wodorotlenku sodu na 1 mol bisfenolu A, w temperaturze 70 - 85°C w czasie 1 - 3 godzin, po czym mieszaninę reakcyjną wygrzewa się jeszcze w tej temperaturze przez 0,5 - 3 godzin, w etapie oczyszczania żywicy, po rozpuszczeniu powstałego chlorku sodu i oddzieleniu solanki, do reaktora wprowadza się strumień toluenu, alkoholu izopropylowego i wody w ilości 75 - 125% w stosunku do masy bisfenolu A, zawierający 25 - 55% alkoholu izopropylowego i nie więcej niż 10% wody, a następnie przeprowadza się przemywanie roztworu żywicy wodą w temperaturze 60 - 80°C i oddzielenie warstwy wodnej, etap destylacji warstwy organicznej, prowadzi się w 4 - stopniowym układzie wyparek cienkowarstwowych, usuwając alkohol izopropylowy, toluen i wodę w temperaturze końcowej 165 - 175°C pod ciśnieniem od 1 do 10 kPa, przy czym etap addycji, etap dehydrochlorowania i etap oczyszczania żywicy prowadzi się w reaktorze wyposażonym w minimum trzy mieszadła łopatkowe o czterech łopatkach w każdym mieszadle, osadzone na wspólnym wale.The subject of the application is a process for the production of medium-molecular epoxy resins, which consists in the fact that the process is carried out in several stages: the step of adding epichlorohydrin to bisphenol A at a molar ratio of 1.3 - 1.7: 1 is carried out at a temperature of 70 - 85 ° C, during 1 - 3 hours, in the presence of 0.05 - 0.25 mole of sodium hydroxide per 1 mole of bisphenol A and a mixture of toluene, isopropyl alcohol and water in an amount of 100 - 150% based on the weight of bisphenol A containing 25 - 55% isopropyl alcohol and not more than 10% water, in the dehydrochlorination step 1.15-1.75 moles of sodium hydroxide are introduced into the reactor per 1 mole of bisphenol A, at a temperature of 70 - 85 ° C for 1-3 hours, after which the reaction mixture is heated still at this temperature for 0.5-3 hours, in the resin purification stage, after dissolving the resulting sodium chloride and separating the brine, a stream of toluene, isopropyl alcohol and water in the amount of 75 - 125 is introduced into the reactor % in relation to the weight of bisphenol A, containing 25-55% isopropyl alcohol and not more than 10% water, followed by washing the resin solution with water at 60-80 ° C and separating the aqueous layer, distilling the organic layer, conducting in a 4-stage thin-film evaporator system, removing isopropyl alcohol, toluene and water at a final temperature of 165 - 175 ° C at a pressure of 1 to 10 kPa, with the addition step, dehydrochlorination step and resin purification step being carried out in a reactor equipped with a minimum of three paddle mixers with four blades in each mixer, mounted on a common shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL419957A PL231787B1 (en) | 2016-12-23 | 2016-12-23 | Method for producing medium molecular weight epoxy resins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL419957A PL231787B1 (en) | 2016-12-23 | 2016-12-23 | Method for producing medium molecular weight epoxy resins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL419957A1 true PL419957A1 (en) | 2018-07-02 |
| PL231787B1 PL231787B1 (en) | 2019-04-30 |
Family
ID=62705212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL419957A PL231787B1 (en) | 2016-12-23 | 2016-12-23 | Method for producing medium molecular weight epoxy resins |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL231787B1 (en) |
-
2016
- 2016-12-23 PL PL419957A patent/PL231787B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL231787B1 (en) | 2019-04-30 |
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