POLYALKYLPIPERIDINE DERIVATIVES OF S-TRIAZINES, THEIR USE AS STABILIZERS FOR POLYMERS AND POLYMER COMPOSITIONS STABILIZED WITH THESE COMPOUNDS

摘要

Novel polyalkylpiperidine derivatives of s-triazines of the formula in which X and X' are a divalent organic radical, X'', X1 and X2 are a direct bond or a divalent organic radical, Y, Y', Y'', Y1, Y2, Z and Z' are -O-, -S-, -NH- or -NR3-, R is H or CH3 and R1, R2 and R3 are a monovalent organic radical or a polyalkylpiperidine group, or the group R1-X''-Y''- is chlorine, and R4 is H, O, alkyl, allyl or benzyl, are valuable stabilizers for polymeric materials, in particular to protect them against photochemical degradation. The derivatives are prepared by stepwise reaction of cyanuric chloride with the corresponding YH, Y'H and Y''H compounds. If 2 or 3 of these components are identical, the corresponding symmetrically substituted triazine compounds, which are preferred, are formed.