Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith

A composition which comprises

• (a) an organic polymer subject to the adverse effects of heat, oxygen and light, and
• (b) an effective stabilizing amount of one or more compounds selected from the compounds of formula (16) to formula (28)
• wherein
• G1 and G2 are independently alkyl of 1 to 4 carbon atoms, or G1 and G2 together are pentamethylene;
• E is a straight or branched chain alkylene of 1 to 18 carbon atoms, cycloalkylene of 5 to 18 carbon atoms, cycloalkenylene of 5 to 18 carbon atoms, a straight or branched chain alkylene of 1 to 4 carbon atoms substituted by phenyl or phenyl substituted by one or two alkyl groups of 1 to 4 carbon atoms;
• b is 1, 2 or 3 with the proviso that b cannot exceed the number of carbon atoms in E or L, and when b is 2 or 3, each hydroxyl group is attached to a different carbon atoms of E or L;
• the two hindered amine groups are generally, but not always, attached to two different carbon atoms of L;
• each of the formulas (16) to (28)
• m is 0 or 1;
• R1 is hydrogen, hydroxyl or hydroxymethyl;
• R2 is hydrogen, alkyl of 1 to 12 carbon atoms or alkenyl of 2 to 12 carbon atoms;
• R7 and R8 are independently chlorine, alkoxy of 1 to 18 carbon atoms, —O—T1, amino substituted by 2-hydroxyethyl, —NH(alkyl) of 1 to 18 carbon atoms, —N(alkyl)T1 with alkyl of 1 to 18 carbon atoms, or —N(alkyl)2 of 2 to 36 carbon atoms,
• R9 is a divalent oxygen atom, or R9 is a divalent nitrogen atom substituted by either hydrogen, alkyl of 1 to 12 carbon atoms or T1
• R10 is hydrogen or methyl,
• q is 2 or 8,
• R13 is hydrogen, phenyl, straight or branched alkyl of 1 to 12 carbon atoms, alkoxy of 1 to 12 carbon atoms, straight or branched alkyl of 1 to 4 carbon atoms substituted by phenyl, cycloalkyl of 5 to 8 carbon atoms, cycloalkenyl of 5 to 8 carbon atoms, alkenyl of 2 to 12 carbon atoms, glycidyl, allyloxy, straight or branched hydroxyalkyl of 1 to 4 carbon atoms, or silyl or silyloxy substituted three times independently by hydrogen, by phenyl, by alkyl of 1 to 4 carbon atoms or by alkoxy of 1 to 4 carbon atoms;
• R14 is hydrogen or silyl substituted three times independently by hydrogen, by phenyl, by alkyl of 1 to 4 carbon atoms or by alkoxy of 1 to 4 carbon atoms;
• d is 0 or 1;
• h is 0 to 4;
• k is 0 to 5;
• L is straight or branched chain alkylene of 1 to 18 carbon atoms, cycloalkylene of 5 to 8 carbon atoms, cycloalkenylene of 5 to 8 carbon atoms, alkenylene of 3 to 18 carbon atoms, a straight or branched chain alkylene of 1 to 4 carbon atoms substituted by phenyl or by phenyl substituted by one or two alkyl of 1 to 4 carbon atoms,
• R19 is hydrogen, alkyl of 1 to 18 carbon atoms, alkenyl of 2 to 18 carbon atoms, glycidyl, 2,3-dihydroxypropyl, 2-hydroxy or 2-(hydroxymethyl) substituted alkyl of 3 to 12 carbon atoms which alkyl is interrupted by oxygen, an acyl radical of an aliphatic or unsaturated aliphatic carboxylic or carbamic acid containing 2 to 18 carbon atoms, an acyl radical of a cycloaliphatic carboxylic or carbamic acid containing 7 to 12 carbon atoms, or acyl radical of an aromatic acid containing 7 to 15 carbon atoms;
• R20 is alkylene of 2 to 18 carbon atoms, a divalent acyl radical of an aliphatic or unsaturated aliphatic dicarboxylic or dicarbamic acid containing 2 to 18 carbon atoms, a divalent acyl radical of a cycloaliphatic dicarboxylic or dicarbamic acid containing 7 to 12 carbon atoms, or a divalent acyl radical of an aromatic dicarboxylic acid containing 8 to 15 carbon atoms;
• R21 is hydrogen, alkyl of 1 to 18 carbon atoms or acyl of 2 to 6 carbon atoms;
• R22 is hydrogen, alkyl of 1 to 18 carbon atoms, an acyl radical of an aliphatic or unsaturated aliphatic carboxylic or carbamic acid containing 2 to 18 carbon atoms, an acyl radical of a cycloaliphatic carboxylic or carbamic acid containing 7 to 12 carbon atoms, an acyl radical of an aromatic carboxylic acid containing 7 to 15 carbon atoms, or R4 and R5 together are —(CH2)5CO—, phthaloyl or a divalent acyl radical of maleic acid;
• R23 is hydrogen, alkyl of 1 to 4 carbon atoms or acyl of 2 to 6 carbon atoms;
• R24 is alkylene of 2 to 18 carbon atoms, a divalent acyl radical of an aliphatic or unsaturated aliphatic dicarboxylic or dicarbamic acid containing 2 to 18 carbon atoms, a divalent acyl radical of a cycloaliphatic dicarboxylic or dicarbamic acid containing 7 to 12 carbon atoms, or a divalent acyl radical of an aromatic dicarboxylic acid containing 8 to 15 carbon atoms;
• R25 is alkoxy of 1 to 18 carbon atoms, alkenyloxy of 2 to 18 carbon atoms, —NHalkyl of 1 to 18 carbon atoms or —N(alkyl)2 of 2 to 36 carbon atoms,
• R26 is alkylenedioxy of 2 to 18 carbon atoms, alkenylenedioxy of 2 to 18 carbon atoms, —NH-alkylene-NH— of 2 to 18 carbon atoms or —N(alkyl)— alkylene-N(alkyl)- of 3 to 18 carbon atoms.