Patent ID: 6927295

Claim:
A 1-oxy-polyalkyl-piperidine compound selected from the group consisting of wherein G 1 , G 2 , G 3 and G 4 are independently alkyl of 1 to 4 carbon atoms with the proviso that at least one is not methyl or G 1 and G 2 or G 3 and G 4 , or G 1 and G 2 and G 3 and G 4 together are pentamethylene; G 5 and G 6 independently are hydrogen or C 1 -C 4 alkyl; m is 1, 2, 3 or 4; R, if m is 1, is hydrogen, C 1 -C 18 aIkyl which is uninterrupted or C 2 -C 18 alkyl which is interrupted by one or more oxygen atoms, cyanoethyl, benzoyl, glycidyl, a monovalent radical of an aliphatic carboxylic acid having 2 to 18 carbon atoms, of a cycloaliphatic carboxylic acid having 7 to 15 carbon atoms, or an α,β-unsaturated carboxylic acid having 3 to 5 carbon atoms or of an aromatic carboxylic acid having 7 to 15 carbon atoms; or R is a monovalent radical of a carbamic acid or phosphorus-containing acid or a monovalent silyl radical; R, if m is 2, is C 2 -C 12 alkylene, C 4 -C 12 alkenylene, xylylene, a divalent radical of an aliphatic dicarboxylic acid having 2 to 36 carbon atoms, or a cycloaliphatic or aromatic dicarboxylic acid having 8-14 carbon atoms or of an aliphatic, cycloaliphatic or aromatic dicarbamic acid having 8-14 carbon atoms; or R is a divalent radical of a phosphorus-containing acid or a divalent silyl radical; R, if m is 3, is a trivalent radical of an aliphatic, cycloaliphatic or aromatic tricarboxylic acid, R, if m is 4, is a tetravalent radical of an aliphatic, cycloaliphatic or aromatic tetracarboxylic acid; p is 1; R 1 is C 1 -C 12 alkyl, C 5 -C 7 cycloalkyl or benzoyl; and R 2 is C 1 -C 18 alkyl, C 5 -C 7 cycloalkyl or a group of the formula —CO-Z- wherein Z is hydrogen, methyl or phenyl; with the proviso that 2,4,6-trimethyl-4-oxo-6-isobutylpiperidine-1-oxyl, 2,6-diethyl-2,6-dimethyl-4-oxo-piperidine-1-oxyl, 4oxo-2,6-diethyl-2,3,6trimethyl-piperdine-1-oxyl, 4-hydroxy-2,6-diethyl-2,6-dimethyl-piperidine1-oxyl, 4-acetoxy-2,6-diethyl-2,3,6-trimethyl-piperidine-1-oxyl, 4-benzoyl-2,6-diethyl-2,3,6-trimethyl-piperidine-1-oxyl, 2,6,diethyl-2,3,6-trimethyl-4-methyl carbamoyloxy piperidine-1-oxyl, 4-benzyloxy-2,6-diethyl-2,3,6-trimethyl-piperidine-1-oxyl and 4-hydroxy-2,6-diethyl-2,3,6,-triemethyl-piperdine-1-oxyl are excluded.