| abstract |
The present invention relates to a process for preparing ester plasticizers from ethylene glycol or the dimers, trimers or tetramers of this compound and linear or branched aliphatic monocarboxylic acids having from 3 to 20 carbon atoms. The reaction is carried out in the presence of organic substances having a boiling point of < 112°C, in particular cyclohexane, as azeotrope formers (entrainers) for removing the water of reaction. |