Hindered amine light stabilized polymer compositions

A polymeric composition stabilized against degradative effects of heat or light comprising a synthetic or natural polymer mixed with a compound of formula I in an amount effective to stabilize the polymer against the degradative effects of heat or light, wherein the compound of formula I is:

• ##STR29## wherein R.sup.1 is hydrogen or substituted or unsubstituted alkyl of 1-4 carbons;
• ##STR30## R.sup.2 is oxyl, hydroxy, substituted or unsubstituted aliphatic acyl of 1-20 carbons, substituted or unsubstituted alicyclic acyl of 6-14 carbons, substituted or unsubstituted aryl acyl of 7-11 carbons, substituted or unsubstituted araliphatic acyl of 7 22 carbons, --C(.dbd.O) N(R.sup.4)(R.sup.5) or C(.dbd.O)--O--R.sup.6 ;
• R.sup.3 is hydrogen, substituted or unsubstituted aliphatic of 1-20 carbons, substituted or unsubstituted araliphatic of 7-22 carbons, alkoxyalkyl of 2-21 carbons or --CH.sub.2 --C(.dbd.O)--O--R.sup.7 ;
• R.sup.4, R.sup.5 and R.sup.7 are independently hydrogen substituted or unsubstituted aliphatic of 1-20 carbons, substituted or unsubstituted aryl of 6-10 carbons, substituted or unsubstituted araliphatic of 7-22 carbons or a substituted or unsubstituted alicyclic group of 5-12 carbons which may optionally contain --N(R.sup.9)-- as a group member and R.sup.4 and R.sup.5 may optionally be linked together to form an alicyclic group of 5-7 atoms or may be linked together through a heteroatom --N(R.sup.10)-- or --O-- to form a heterocyclic ring of 5-7 atoms;
• R.sup.6 is substituted or unsubstituted aliphatic of 1-20 carbons, substituted or unsubstituted aryl of 6-10 carbons, substituted or unsubstituted araliphatic of 7-22 carbons or a substituted or unsubstituted alicyclic group of 5-12 carbons which may optionally contain --N(R.sup.9)-- as a group member;
• R.sup.8 is hydroxy, --O.sup..crclbar., halogen --NH.sub.2, --NHNH.sub.2 or the residue from a substituted or unsubstituted, compound or polymer containing at least one hydroxy, amine, mercaptan or hydrazine group or molecular mixture thereof, wherein hydroxy-containing, amine-containing, mercaptan-containing or hydrazine-containing polymers may be backbone, pendant or terminally functionalized;
• R.sup.9 and R.sup.10 are independently hydrogen or substituted or unsubstituted alkyl of 1-4 carbons;
• s is an integer of 1 to a number corresponding to the number of free valences of R.sup.8 ;
• A is an anion chloride, bromide, sulfate, acid sulfate, sulfite, acid sulfite, p-toluenesulfonate, phenylsulfonate, methylsulfonate, phosphate, acid phosphate, carboxylate from any carboxylic acid or R.sup.8 when R.sup.8 is --O.sup..crclbar. ;
• substitutents for the alkyl, aliphatic, aryl, araliphatic, alicyclic, aliphatic acyl, aryl acyl or araliphatic acyl radicals, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9 and R.sup.10 independently are one or more of aliphatic of 1-8 carbons, alkoxy of 1-4 carbons, alkanoyl of 1-12 carbons, alkanoyloxy of 1-12 carbons, alkoxycarbonyl of 2-5 carbons, arylcarbonyl of 7-11 carbons, acryloyloxy, methacryloyloxy, aryloxy of 6-10 carbons, aralkyl of 7-10 carbons, aryloxycarbonyl of 7-11 carbons, aryl of 6-10 carbons, amino, hydroxy, carboxy, nitrile, chloro, bromo, epoxy, vinyl, alkyl mercapto of 1-4 carbons, benzoyloxy, aryl mercapto of 6-10 carbons, alkylamino of 1-4 carbons, dialkylamino of 2-8 carbons, arylamino of 6-10 carbons, aryl alkyl amino of 7-10 carbons or trialkoxysilyl of 3-9 carbons.