METHOD OF PRODUCING POLYOLS Russian patent published in 2020 - IPC B01J31/18 B01J31/22 C08G64/32 C08G64/34 C08G18/48 C08G65/10 

FIELD: chemical or physical processes.

SUBSTANCE: present invention relates to a method of producing polycarbonate ether polyol, a polymerisation system, a polycarbonate ether polyol and polyurethane or other high-molecular polymer. Disclosed is a method of producing polycarbonate ether polyol, involving reaction of carbon dioxide and epoxide in the presence of a double metal cyanide (DMC) catalyst, catalyst of formula (I) and starting compound, in which catalyst of formula (I) has the following structural formula:

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Polycarbonate ether polyol obtained using said method is used to produce polyurethane or other high-molecular polymer, which is used as heat-insulating panels, high-performance adhesives, high-strength foam seats, sealants and seals, wheels and tires, synthetic fibers.

EFFECT: technical result is a method of producing polycarbonate ether polyol, which has a narrow molecular weight distribution of 500 to about 10000 Da and which has a wide range of ratios of carbonate bonds to ether bonds (can be greater than zero but less than 1).

21 cl, 10 dwg, 6 tbl, 13 ex