PL421802A1 - Method for obtaining bio-polyurethanes - Google Patents
Method for obtaining bio-polyurethanesInfo
- Publication number
- PL421802A1 PL421802A1 PL421802A PL42180217A PL421802A1 PL 421802 A1 PL421802 A1 PL 421802A1 PL 421802 A PL421802 A PL 421802A PL 42180217 A PL42180217 A PL 42180217A PL 421802 A1 PL421802 A1 PL 421802A1
- Authority
- PL
- Poland
- Prior art keywords
- reaction
- carried out
- amount
- prepolymer
- polyurethanes
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 229920002635 polyurethane Polymers 0.000 title abstract 2
- 239000004814 polyurethane Substances 0.000 title abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 abstract 2
- 239000004970 Chain extender Substances 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 125000005442 diisocyanate group Chemical group 0.000 abstract 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 239000012948 isocyanate Substances 0.000 abstract 1
- 150000002513 isocyanates Chemical class 0.000 abstract 1
- 235000011007 phosphoric acid Nutrition 0.000 abstract 1
- 229920005862 polyol Polymers 0.000 abstract 1
- 150000003077 polyols Chemical class 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
Landscapes
- Polyurethanes Or Polyureas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Przedmiotem zgłoszenia jest sposób otrzymywania bio-poliuretanów, który charakteryzuje się tym, że w pierwszym etapie przygotowuje się dwa prepolimery o różnej zawartości niezwiązanych grup izocyjanianowych od 5 do 12% w wyniku reakcji poliolu pochodzenia naturalnego o średniej masie cząsteczkowej od 1000 do 3000 g/mol z diizocyjanianem oraz ze stężonym kwasem H3PO4 w ilości 0,03 do 0,2% wagowymi w stosunku do ilości prepolimeru. Reakcję prowadzi się w temperaturze od 60 do 90°C przez okres od 2 go 6 godzin. Następnie przeprowadza się drugi etap syntezy w ten sposób, że miesza się otrzymane dwa układy prepolimerowe o różnej zawartości niezwiązanych grup izocyjanianowych z przedłużaczem łańcucha prepolimeru w postaci glikolu pochodzenia naturalnego użytego w takiej ilości aby otrzymać stosunek molowy grup izocyjanianowych do hydroksylowych [NCO]/[OH] równy od 0,9 do 1,05, przy czym reakcję prowadzi się w obecności katalizatora.The subject of the application is a method of obtaining bio-polyurethanes, which is characterized in that in the first stage two prepolymers with different content of unbound isocyanate groups from 5 to 12% are prepared as a result of the reaction of a polyol of natural origin with an average molecular weight from 1000 to 3000 g / mol with diisocyanate and with concentrated H3PO4 acid in an amount of 0.03 to 0.2% by weight based on the amount of prepolymer. The reaction is carried out at a temperature of 60 to 90 ° C for a period of 2 to 6 hours. The second stage of the synthesis is then carried out in such a way that the two prepolymer systems obtained with different content of unbound isocyanate groups are mixed with the prepolymer chain extender in the form of natural glycol used in such an amount to obtain a molar ratio of isocyanate to hydroxyl groups [NCO] / [OH ] from 0.9 to 1.05, the reaction being carried out in the presence of a catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL42180217A PL233447B1 (en) | 2017-06-06 | 2017-06-06 | Method for obtaining bio-polyurethanes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL42180217A PL233447B1 (en) | 2017-06-06 | 2017-06-06 | Method for obtaining bio-polyurethanes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL421802A1 true PL421802A1 (en) | 2018-12-17 |
| PL233447B1 PL233447B1 (en) | 2019-10-31 |
Family
ID=64634208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL42180217A PL233447B1 (en) | 2017-06-06 | 2017-06-06 | Method for obtaining bio-polyurethanes |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL233447B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL443832A1 (en) * | 2023-02-20 | 2024-08-26 | Politechnika Gdańska | Method of obtaining bio-poly(ester-ether)urethanes and bio-poly(ester-ether)urethanes |
| PL446662A1 (en) * | 2023-11-07 | 2025-05-12 | Politechnika Gdańska | Cast polyurethane with increased bio-based carbon content and its production method |
-
2017
- 2017-06-06 PL PL42180217A patent/PL233447B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL233447B1 (en) | 2019-10-31 |
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