Polyesterols, useful for the production of polyurethanes, are prepared by contact of the reaction mixture with absorbents and filtration before, during and/or after the reaction

摘要

Polyesterols (I) are prepared by catalytic polycondensation of dicarboxylic acids and/or their derivatives with H-functional compounds whereby the reaction mixture is brought into contact with absorbents and filtered before, during and/or after the reaction.