The present invention relates to synergistic mixtures for stabilising polymeric organic materials against light, heat and oxidation; said synergistic mixtures contain sterically hindered cyclic amines and particular derivatives of 3-pyrazolidinone or 1,2,4-triazolidine-3,5-dione. In addition, the present invention relates to some new derivatives of 3-pyrazolidinone or 1,2,4-triazolidine-3,5-dione.
本发明涉及用于稳定聚合有机材料,使其免受光、热和氧化影响的增效混合物;所述增效混合物包含立体受阻环胺和 3-
吡唑烷酮或
1,2,4-三唑烷-3,5-二酮的特定衍
生物。此外,本发明还涉及 3-
吡唑烷酮或
1,2,4-三唑烷-3,5-二酮的一些新衍
生物。