HFO COMPOSITION CONTAINING PU Russian patent published in 2021 - IPC C08G18/48 C08G18/76 

FIELD: chemistry.

SUBSTANCE: present invention relates to polyol compositions for producing polyurethane foams. A polyol composition is proposed containing a polyol mixture (PM) that contains simple polyether alcohol (P1) based on polyatomic alcohol and simple polyether alcohol (P2) based on diamine; and at least one hydrogaloolefin (HFO) as a foam-forming agent. Diamine is selected from ethylene diamine, toluol diamine and mixtures thereof, and simple polyether alcohol (P2) is present in the polyol mixture in the range of 1-40 wt. p. of the total weight of the polyol mixture. Hydrogaloolefin is haloalkene selected from fluoroalkene and chloroalkene containing from 2 to 5 carbon atoms and at least one double bond of carbon-carbon. A method for producing polyurethane foam using the specified polyol composition and polyurethane foam produced by the specified method are also proposed.

EFFECT: ensuring the possibility of producing polyurethane foams with good stability during storage.

13 cl, 3 tbl, 3 ex