PL416232A1 - Method for obtaining low-molecular polyesters - Google Patents
Method for obtaining low-molecular polyestersInfo
- Publication number
- PL416232A1 PL416232A1 PL416232A PL41623216A PL416232A1 PL 416232 A1 PL416232 A1 PL 416232A1 PL 416232 A PL416232 A PL 416232A PL 41623216 A PL41623216 A PL 41623216A PL 416232 A1 PL416232 A1 PL 416232A1
- Authority
- PL
- Poland
- Prior art keywords
- water
- reaction
- solution
- koh
- temperature
- Prior art date
Links
- 229920000728 polyester Polymers 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 5
- 150000001298 alcohols Chemical class 0.000 abstract 3
- 238000005886 esterification reaction Methods 0.000 abstract 3
- 239000011541 reaction mixture Substances 0.000 abstract 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 150000001991 dicarboxylic acids Chemical class 0.000 abstract 2
- 230000032050 esterification Effects 0.000 abstract 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 abstract 1
- 239000005909 Kieselgur Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- 239000003463 adsorbent Substances 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000003456 ion exchange resin Substances 0.000 abstract 1
- 229920003303 ion-exchange polymer Polymers 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000002894 organic compounds Chemical class 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 125000001302 tertiary amino group Chemical group 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
Landscapes
- Polyesters Or Polycarbonates (AREA)
Abstract
Sposób otrzymywania niskocząsteczkowych poliestrów w reakcji estryfikacji kwasów dikarboksylowych alkoholami polega na tym, że co najmniej jeden kwas dikarboksylowy I rozpuszcza się w roztworze o temperaturze nie niższej niż 100°C zawierającym alkohole mono i dihydroksylowe, przy czym alkoholi dihydroksylowych jest nie więcej niż 80% wagowych, następnie z otrzymanego roztworu usuwa się wodę tak, aby jej stężenie w roztworze było nie wyższe niż 0,1% wagowych, do odwodnionego roztworu dodaje się organiczne związki cyny i/lub tytanu jako katalizatora estryfikacji, a temperaturę mieszaniny reakcyjnej podwyższa się do nie mniej niż 160°C i w sposób ciągły usuwa się wodę powstającą w reakcji, aż do momentu zaprzestania się wydzielania wody, po czym do mieszaniny reakcyjnej o temperaturze nie niższej 180°C wprowadza się kwas dikarboksylowy II lub kwasy dikarboksylowe II i/lub poliestry o średnim ciężarze cząsteczkowym Mw nie wyższym niż 1500 g/mol i ponownie usuwa się wodę do momentu osiągnięcia liczby kwasowej nie niższej niż 10,0 mg KOH/g, korzystnie 10 do 50 mg KOH/g, następnie dodaje się w nadmiarze alkohol monohydroksylowy (R2-OH), w którym R2 jest podstawnikiem alkilowym od 8 do 10 atomach węgla i prowadzi się estryfikację usuwając wodę reakcyjną do uzyskania liczby kwasowej nie wyższej niż 0,2 mg KOH/g po czym z mieszaniny poreakcyjnej oddestylowuje się nadmiar alkoholu monohydroksylowego R2-OH, a otrzymaną mieszaninę poliestrów chłodzi się do temperatury 80 - 140°C, kontaktuje się z adsorbentem składającym się z ziemi okrzemkowej i zasadowej żywicy jonowymiennej zawierającej III-rzędowe grupy aminowe, po czym zawiesinę poddaje się filtracji.The method of obtaining low molecular weight polyesters in the esterification reaction of dicarboxylic acids with alcohols is that at least one dicarboxylic acid I dissolves in a solution at a temperature not lower than 100 ° C containing mono and dihydroxyl alcohols, with dihydroxyl alcohols not more than 80% by weight then the water is removed from the obtained solution so that its concentration in the solution is not higher than 0.1% by weight, organic compounds of tin and / or titanium are added to the dehydrated solution as an esterification catalyst, and the temperature of the reaction mixture is raised to not less than 160 ° C and the water formed in the reaction is continuously removed until the cessation of water evolution, then dicarboxylic acid II or dicarboxylic acids II and / or medium weight polyesters are introduced into the reaction mixture at a temperature not lower than 180 ° C molecular Mw not higher than 1500 g / mol and again the water is removed until an acid value of not less than 10.0 mg KOH / g, preferably 10 to 50 mg KOH / g is reached, followed by an excess of monohydroxy alcohol (R2-OH) in which R2 is an alkyl substituent from 8 to 10 carbon atoms and esterification is carried out by removing the reaction water to obtain an acid number not higher than 0.2 mg KOH / g, after which the excess of R2-OH monohydroxy alcohol is distilled off from the reaction mixture, and the obtained polyester mixture is cooled to 80 - 140 ° C, is contacted with an adsorbent consisting of diatomaceous earth and basic ion exchange resin containing tertiary amine groups, after which the suspension is subjected to filtration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL416232A PL230251B1 (en) | 2016-02-23 | 2016-02-23 | Method for obtaining low-molecular polyesters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL416232A PL230251B1 (en) | 2016-02-23 | 2016-02-23 | Method for obtaining low-molecular polyesters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL416232A1 true PL416232A1 (en) | 2017-07-31 |
| PL230251B1 PL230251B1 (en) | 2018-10-31 |
Family
ID=59383806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL416232A PL230251B1 (en) | 2016-02-23 | 2016-02-23 | Method for obtaining low-molecular polyesters |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL230251B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL423453A1 (en) * | 2017-11-15 | 2019-05-20 | Pcc Mcaa Spolka Z Ograniczona Odpowiedzialnoscia | Method for obtaining low- and / or medium-molecular polymeric surfactants with a defined hydrophilic-lipophilic balance |
-
2016
- 2016-02-23 PL PL416232A patent/PL230251B1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL423453A1 (en) * | 2017-11-15 | 2019-05-20 | Pcc Mcaa Spolka Z Ograniczona Odpowiedzialnoscia | Method for obtaining low- and / or medium-molecular polymeric surfactants with a defined hydrophilic-lipophilic balance |
| WO2019098865A1 (en) * | 2017-11-15 | 2019-05-23 | Pcc Mcaa Sp.Z O.O. | The method for the preparation of low and/or medium molecular weight polymeric surfactants with a defined hydrophilic-lipophilic balance |
| EP3710509A4 (en) * | 2017-11-15 | 2021-07-14 | PCC MCAA Sp. z o.o. | PROCESS FOR PREPARING POLYMERIC SURFACTANTS OF LOW AND / OR MEDIUM MOLECULAR WEIGHT PROVIDED WITH A DEFINED HYDROPHIL-LIPOPHILIC BALANCE |
Also Published As
| Publication number | Publication date |
|---|---|
| PL230251B1 (en) | 2018-10-31 |
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