light stabilisers based on amines with steric congestion is mixed functionalization

摘要

The invention relates to a compound of formula (I, I).1. One or two R1 radicals independently represent C1 to C20 oxy or C3 to C12 oxy alkyl or C3 cycloalkyl, and the rest R1 radicals independently represent hydrogen atom, C1 to C20 alkyl or C3 to C12 cycloalkyl; R0 and R2 radicals represent hydrogen atom, c1-c20alkyl group, c3-c12 cycloalkyl group or a group of formula (ll-a), respectively, wherein R3 represents hydrogen atom, c1-c20alkyl group, c3-c12 cycloalkyl group or 12-c3 cycloalkyl group.Y is the alkyl group of C2 to C12; m is 0 or 1; n is 1, 2 or 3; n is 1, X is the hydrogen atom, C1 to C20 alkyl group, C3 cycloalkyl group of C3 to C12 or a set of formulas ("L-A");When n equals 2, X represents an alkyl group of C2 to C12; when n equals 3, X represents an alkyl group of C2 to C12 when n equals 3.