FIELD: chemistry.
SUBSTANCE: invention relates to method of polyester polyols producing. Method is implemented by converting a) of aromatic amines with b) alkylene oxides in presence of c) catalyst. Alkylene oxide includes b) contains at least 90 WT. % of propylene oxide in terms of weight of component b) and catalyst c) used is amine. Invention also describes polyester polyols obtained using said method and use thereof to produce polyurethanes.
EFFECT: technical result is obtaining polyester polyols with low viscosity and low content of not converted aromatic amines, used as starting compounds.
6 cl, 7 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING SOLID POLYURETHANE FOAM MATERIALS | 2012 |
|
RU2585290C2 |
| METHOD OF OBTAINING HARD FOAM POLYURETHANES | 2010 |
|
RU2525240C2 |
| POLYETHER POLYOLS CONTAINING PARTICLE | 2012 |
|
RU2615772C2 |
| METHOD OF PRODUCING POLYESTER POLYOLS | 2011 |
|
RU2570701C2 |
| METHOD FOR PRODUCING RIGID POLYURETHANE FOAM MATERIALS | 2012 |
|
RU2597931C2 |
| METHOD OF PRODUCING POLYETHER POLYOLS | 2011 |
|
RU2566295C2 |
| POLYETHER-POLYOLS | 2000 |
|
RU2263684C2 |
| FOAMED POLYURETHANES WITH IMPROVED FATIGUE STRENGTH DURING REPEATED BENDING | 2008 |
|
RU2487899C2 |
| METHOD OF PRODUCING POLYETHER ALCOHOLS | 2008 |
|
RU2448125C2 |
| RIGID POLYURETHANE FOAMS | 2013 |
|
RU2632198C2 |
