Patent ID: 6521681
Filing Date: 2003-02-18
Classification: C08K,D01F

Abstract:
A composition comprisinga) a polyolefin subject to oxidative, thermal or light-induced degradation, b) from 0.0005 to 5% based on the weight of component (a) of at least one compound of the formula V â€ƒin which R2 is hydrogen or C1-C6alkyl, R3 is hydrogen, R4 is hydrogen, C1-C6alkyl or a radical of the formula IIIa R5 is hydrogen, R7, R8, R9, R10 and R11 independently of one another are hydrogen, C1-C4alkyl, C1-C4alkoxy, C2-C6alkanoyloxy or â€ƒwith the proviso that at least two of the radicals R7, R8, R9, R10 or R11 are hydrogen, R16 and R17, together with the C atom to which they are attached, form a cyclohexylidene ring which is unsubstituted or substituted by C1-C4alkyl; R20, R21 and R22 are hydrogen, and R23 is hydrogen or C1-C18alkanoyl, and c) from 0.01 to 10% based on the weight of component (a) of at least one compound having at least one sterically hindered amine radical of the formula XII or XIII â€ƒin which G is hydrogen or methyl, and G1 and G2 are hydrogen, methyl or together are oxygen, and with the proviso that the sterically hindered amine compound does not additionally contain a phosphite or phosphonite moiety.