FIELD: polymer production.
SUBSTANCE: invention relates to a method of producing polyether-polyols via catalytic addition of at least two alkylene oxides to H-functional initiators, during which operation at least one oxyalkylene unit is incorporated as a result of joint dosage of at least two alkylene oxides. Catalyst utilized is at least one metal cyanide-based compound. When performing joint dosage ratios of alkylene oxides to each other is varied.
EFFECT: enabled production of polyether-polyols without clouding and having processing-appropriate viscosity.
8 cl, 12 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING POLYOLS FOR SUPPLE BLOCKED FOAMED PLASTICS | 2000 |
|
RU2257394C2 |
| POLYESTER- AND POLYETHER-BASED BLOCK COPOLYMERS | 2000 |
|
RU2277545C2 |
| METHOD OF PRODUCING POLYESTER POLYOLS | 2011 |
|
RU2570701C2 |
| METHOD FOR PRODUCING RIGID POLYURETHANE FOAM MATERIALS | 2012 |
|
RU2597931C2 |
| POLYURETHANE FOAM PRODUCTION PROCESS AND POLYURETHANE FOAM THUS OBTAINED | 2002 |
|
RU2314321C2 |
| METHOD OF PRODUCING POLYESTER POLYOLS | 2011 |
|
RU2585629C2 |
| METHOD OF PRODUCING POLYOLS AND USE THEREOF IN PRODUCING POLYURETHANES | 2008 |
|
RU2492190C2 |
| POLYETHER POLYOLS CONTAINING PARTICLE | 2012 |
|
RU2615772C2 |
| METHOD FOR OBTAINING POLYESTER CARBONATE POLYOLS | 2013 |
|
RU2643804C2 |
| RIGID POLYURETHANE FOAMS | 2013 |
|
RU2632198C2 |
