Patent ID: 8524812
Filing Date: 2013-09-03
Classification: C07D,C08K

Abstract:
1. A composition comprising (a) a natural or synthetic polymer subject to degradation induced by light, heat or oxidation, and (b) 0.001 to 10% by weight, relative to the weight of the natural or synthetic polymer, of a product mixture containing components b-I, b-II, b-III and b-IV; component b-I being a compound of formula (I) with a degree of substitution of 1 in an amount of from 5 to 25 parts by weight, component b-II being a compound of formula (I) with a degree of substitution of 2 in an amount of from 5 to 35 parts by weight, component b-III being a compound of formula (I) with a degree of substitution of 3 in an amount of from 10 to 45 parts by weight and component b-IV being a compound of formula (I) with a degree of substitution of 4 in an amount of from 10 to 45 parts by weight, the sum of the parts of components bI to bIV being 100; formula (I) being wherein the radicals R wherein for component b-I, b-II and b-III the radicals R where degree of substitution denotes the number of substituents R C and the radicals R C wherein R the radicals R