FIELD: chemistry.
SUBSTANCE: invention relates to a polyester polyol, a method for production thereof and to use thereof to produce rigid foam materials from polyurethanes/polyisocyanurates. The polyester polyol with concentration of ether groups between 9.0 mol/kg polyester polyol and 16 mol/kg polyester polyol is obtained from a mixture containing: A) terephthalic acid (A), B) oligoethylene glycol of formula H-(OCH2CH2)n-OH with an average number of oxyethylene groups n between 3.0 and 9.0, and C) at least one aliphatic dicarboxylic acid selected from a group consisting of succinic acid, glutaric acid, adipic acid, sebacic acid, suberic acid, azelaic acid, decane dicarboxylic acid, dodecane dicarboxylic acid and omega-hydroxycaproic acid.
EFFECT: obtaining polyester polyol which is easy to process when producing rigid foam materials from polyurethanes/polyisocyanurates and simultaneously improves fire-resistance.
13 cl, 2 tbl, 9 ex
| Title | Year | Author | Number |
|---|---|---|---|
| POLYESTER POLYOLS FROM ISOPHTHALIC ACID AND/OR TEREPHTHALIC ACID AND OLIGOALKYLENE OXIDES | 2010 |
|
RU2529864C2 |
| WEAKLY MODIFIED PREPOLYMERS AND USE THEREOF | 2011 |
|
RU2587302C2 |
| METHOD OF PRODUCING POLYESTER POLYOLS WITH LOW CONTENT OF SECONDARY DIOXANE | 2009 |
|
RU2519938C2 |
| POLYESTER POLYOLS BASED ON AROMATIC DICARBOXYLIC ACIDS | 2011 |
|
RU2609261C2 |
| METHOD OF OBTAINING POLYESTER POLYOLS WITH SMALL AMOUNT OF DIOXANE WASTES | 2009 |
|
RU2525391C9 |
| METHOD OF OBTAINING POLYURETHANE POLYMER, CONTAINING POLYESTHERPOLYOLS WITH TERMINAL SECONDARY HYDROXYL GROUPS | 2010 |
|
RU2543383C2 |
| METHOD FOR PRODUCING FOAM COMPOSITE ELEMENT | 2010 |
|
RU2551503C2 |
| HYDROFLUOROLEFIN/WATER-BLOWN SYSTEMS FOR RIGID FOAM MATERIALS | 2012 |
|
RU2611493C2 |
| POLYURETHANE CASTING RESINS AND GAS MASSES PRODUCED THEREFROM | 2013 |
|
RU2638555C2 |
| METHOD OF PRODUCING FOAMED COMPOSITE ELEMENT | 2010 |
|
RU2532203C2 |
