| 摘要 |
<p>A composition for stabilizing synthetic polymers consisting of a derivative of a low molecular weight polymethylpiperidine of formula (I) <CHEM> wherein the groups are as defined hereinafter and a derivative of a high molecular weight polymethylpiperidine of formula (II) <CHEM> wherein the groups are as defined of hereinafter is disclosed. These compositions show photostabilizing and antioxidant properties.</p> |
