FIELD: polymer production.
SUBSTANCE: invention relates to polyester- and polyether-based block copolymers prepared via catalytic addition of alkylene oxides to polyester-polyols. Polyesters are obtained by reaction of bifunctional alcohols with bifunctional carboxylic acids. Catalyst is selected from compounds based on metal cyanides.
EFFECT: enabled production of polyols with polyester and polyether groups in molecule by simple ways, which polyols have no disadvantages of products obtained by reaction of polyether-polyols with multifunctional carboxylic acids.
6 cl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| POLYETHER-POLYOLS | 2000 |
|
RU2263684C2 |
| METHOD OF PRODUCING VISCOELASTIC POLYURETHANE PLASTICISED FOAM PLASTIC WITH OPEN CELLS | 2007 |
|
RU2435795C2 |
| METHOD OF PREPARING POLYOLS FOR SUPPLE BLOCKED FOAMED PLASTICS | 2000 |
|
RU2257394C2 |
| METHOD OF PRODUCING POLYETHER-ESTER POLYOLS AND USE THEREOF TO PRODUCE HARD OR FOAMED POLYURETHANE MATERIALS | 2009 |
|
RU2517702C2 |
| POLYURETHANE COMPOSITION AND ITS APPLICATION FOR OBTAINING HOLOGRAPHIC MEDIA | 2009 |
|
RU2518125C9 |
| POLYURETHANE COMPOSITION AND USE THEREOF TO PRODUCE HOLOGRAPHIC MEDIA | 2009 |
|
RU2510666C2 |
| POLYESTER POLYOLS FROM ISOPHTHALIC ACID AND/OR TEREPHTHALIC ACID AND OLIGOALKYLENE OXIDES | 2010 |
|
RU2529864C2 |
| METHOD OF OBTAINING POROUS POLYETHERPOLYOLS | 2013 |
|
RU2532429C1 |
| METHOD FOR OBTAINING POLYURETHANE FOAM WITH EMULSIFIED FOAMING AGENT | 2013 |
|
RU2641119C2 |
| REINFORCED POLYURETHANE PULTRUDATES AND PRODUCTION THEREOF | 2012 |
|
RU2598070C2 |
