Novel piperidine-spiro-hydantoin derivatives represented by the general formula (I) and use thereof as light stabilizers for synthetic polymers are described:
The compounds are distinguished by an improved stabilizing effect in various synthetic polymer compositions, such as polyolefins, against light- and/or heat-induced deterioration thereof, low volatility upon heat- processing or during storage of shaped articles containing the compounds, and resistance to extraction with water and solvents.
描述了通式 (I) 所代表的新型
哌啶-螺-
海因衍
生物及其作为合成
聚合物光稳定剂的用途:该化合物的显著特点是在各种合成
聚合物(如聚
烯烃)组合物中具有更好的稳定效果,可防止光和/或热引起的劣化,在热加工或含有该化合物的成型物品储存期间具有低挥发性,并且耐
水和溶剂萃取。