Verwendung von Piperidinverbindungen

摘要

Piperidine compounds having the formula (I) are used to produce light-stabilised, EPDM-modified polypropylene, useful in particular in the automobile industry, for example for shock absorbers, covering sections and the like. In the formula (I), R1 stands for hydrogen, hydroxyl, low-molecular alkyl, low-molecular alkoxy, acyl or oxygen; R2 stands for a mono or binuclear rest of aromatic character and optional substituents; R3 stands for oxygen, -NH- or -N(C1-4-alkyl)- and all R8 independently represent hydrogen or methyl. Also disclosed is the combination of said piperidine compounds with known UV-absorbers, as well as EPDM-modified polypropylene that contains 0.05 to 2.5 % by weight, preferably 0.1 to 0.6 % by weight, of a rest of a compound having the formula (I), and products made thereof.