RO83485B - Process for preparing polyurethanes and polyurethaneisocyanurates - Google Patents
Process for preparing polyurethanes and polyurethaneisocyanuratesInfo
- Publication number
- RO83485B RO83485B RO105083A RO10508381A RO83485B RO 83485 B RO83485 B RO 83485B RO 105083 A RO105083 A RO 105083A RO 10508381 A RO10508381 A RO 10508381A RO 83485 B RO83485 B RO 83485B
- Authority
- RO
- Romania
- Prior art keywords
- hexamethylenediamine
- acid
- water
- reaction
- adipic acid
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title 1
- 229920002635 polyurethane Polymers 0.000 title 1
- 239000004814 polyurethane Substances 0.000 title 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 abstract 4
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 abstract 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 abstract 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 239000001361 adipic acid Substances 0.000 abstract 2
- 235000011037 adipic acid Nutrition 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 239000012429 reaction media Substances 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
Landscapes
- Polyamides (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Inventia se refera la un procedeu de obtinere a unor termoadezivi de tip copoliamidic prin reactia dintre acid sebacic, acid adipic, 10...30% hexametilendiamina 10....50% apa distilata sau dedurizata si 0,05 ....0,5% acid acetic timp de 1...3h la temperatura de 180....230 degree C dupa care se elimina excesul de apa din sistem pîna la egalizarea presiunii din autoclava cu cea atmosferica continuîndu-se apoi încalzirea timp de 2....4 h pana la temperatura de 220....270 degree C în final eliminîndu-se apa din mediul de reactie la vid iar polimerul fiind extras sub forma de banda granulat si macinat procedeu prin care în scopul îmbunatatirii fluxului tehnologic se efectueaza reactia direct din materiile prime ca baza în proportie de 10....30% acid sebacic si 5....20% acid adipic în raport bine determinat cu hexametilendiamina.The invention relates to a process for obtaining copolyamide type thermoadhesives by reaction between sebacic acid, adipic acid, 10 ... 30% hexamethylenediamine 10 ... 50% distilled or softened water and 0.05 ... 0 , 5% acetic acid for 1 ... 3h at 180 ... 230 ° C, after which the excess water in the system is eliminated until the pressure in the autoclave and the atmospheric pressure equals, then the heating is continued for 2 hours. ... 4 h to 220 DEG C. to 270 DEG C. Finally, the water is removed from the vacuum reaction medium and the polymer is extracted as a granulated and milled strip process in order to improve the technological flow direct reaction from the starting materials as a base in a proportion of 10 ... 30% sebacic acid and 5 ... 20% adipic acid in a well-determined ratio with hexamethylenediamine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS590680A CS229504B1 (en) | 1980-08-29 | 1980-08-29 | Method for the producing hard polyurethan foams |
| CS590480A CS229503B1 (en) | 1980-08-29 | 1980-08-29 | Method for the producing hard polyurethanizokyanuratic foams |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO83485A RO83485A (en) | 1984-02-21 |
| RO83485B true RO83485B (en) | 1984-02-28 |
Family
ID=25746272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO105083A RO83485B (en) | 1980-08-29 | 1981-08-12 | Process for preparing polyurethanes and polyurethaneisocyanurates |
Country Status (3)
| Country | Link |
|---|---|
| AT (1) | ATA374281A (en) |
| PL (1) | PL132083B2 (en) |
| RO (1) | RO83485B (en) |
-
1981
- 1981-08-07 PL PL23253081A patent/PL132083B2/en unknown
- 1981-08-12 RO RO105083A patent/RO83485B/en unknown
- 1981-08-28 AT AT374281A patent/ATA374281A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| PL232530A2 (en) | 1982-04-26 |
| PL132083B2 (en) | 1985-01-31 |
| RO83485A (en) | 1984-02-21 |
| ATA374281A (en) | 1986-01-15 |
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