| http://www.w3.org/ns/prov#value | - Rody, U.S. Pat. No. 4,288,593, patented Sept. 8, 1981, provides polyalkylpiperidine derivatives of s-triazines of the formula ##STR38## 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 polyalkylpiperi
|
