METHOD FOR PREPARING OLIGOMER BASED ON EPOXY RESIN E-40 AND 4-HYDROXY-2,2,6,6-TETRAMETHYLPIPERIDINE

摘要

FIELD: organic chemistry, polymers, chemical technology. ^ SUBSTANCE: invention relates to a method for preparing oligomer based on epoxy resin E-40. Method involves carrying out the condensation reaction of epoxy resin E-40 and 4-hydroxy-2,2,6,6-tetramethylpiperidine in melt at temperature 130-200°C for 2-14 h. Prepared oligomer can be used as a highly effective non-staining photostabilizing agent of polymer materials (polyolefins, polyurethanes and others). Invention provides reducing the process time and energy consumptions and to carry out the process in the absence of solvent. ^ EFFECT: improved preparing method. ^ 4 ex