FIELD: chemistry.
SUBSTANCE: method comprises glyoxal interation with urea. At that, urea is dissolved in 40% aqueous glyoxal solution and heated at 50-70°C in a neutral medium up to precipitation at a molar ratio of components: 1-3 of urea; 1-2 of glyoxal.
EFFECT: invention allows to create an eco-friendly method of urea and glyoxal oligomers production with a possibility to control the final product properties.
1 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF OBTAINING GLYCOURIL | 2014 |
|
RU2583110C1 |
| METHOD OF PRODUCING COMPOSITE BASED ON IRON COMPOUNDS | 2018 |
|
RU2701738C1 |
| METHOD OF PREPARING CROSSLINKING COMPOSITION | 2008 |
|
RU2531809C2 |
| METHOD OF PRODUCING 2,4,6,8-TETRAAZBICYCLO[3,3,0]OCTANE-3,7-DIONE | 2010 |
|
RU2439072C1 |
| AMINOPLASTIC OR PHENOLPLASTIC RESIN BASED ON GLYOXAL MONOACETAL AND GLYOXALIC ACID AND USE THEREOF | 2007 |
|
RU2434026C2 |
| 0 |
|
SU523118A1 | |
| METHOD FOR PRODUCTION OF POWDER OF 1,4-BIS(4-PHENOXYBENZOYL)BENZENE AND POLYESTERKETONKETONE BASED ON IT | 2021 |
|
RU2780571C1 |
| 0 |
|
SU551342A1 | |
| METHOD OF PURIFYING GLYCOLURIL FROM HYDANTOIN IMPURITY | 2019 |
|
RU2708590C1 |
| METHOD OF PRODUCING OLIGOPHENYLENES | 0 |
|
SU852882A1 |
