Polymer bound hindered amine light stabilizers

Claim 2

A polymer with recurring units selected from ##STR8## or both in which the units occur either in the polymer backbone, or as pendant units, or both and wherein R 1 and R 2 are independently selected from hydrogen, alkyl of 1 to 6 carbons, cycloakyl of 5 to 7 carbons, phenyl, chlorine, or bromine, x is an integer of 0 or 1, and ##STR9## represents the residue of a hydrazido substituted hindered amine light stabilizer group.

Claim 3

The polymer bound hindered amine light stabilizer composition of claim 1 wherein G has the structure ##STR10## where R 4 is selected from hydrogen, oxyl, hydroxyl, alkyl of 1 to 20 carbons, alkenyl or alkynyl of 3 to 8 carbons, aralkyl of 7 to 12 carbons, aliphatic acyl of 1 to 10 carbons, aromatic acyl of 7 to 13 carbons, alkoxycarbonyl of 2 to 9 carbons, aryloxycarbonyl of 7 to 15 carbons, alkyl, aryl, cycloalkyl or aralkyl substituted carbamoyl of 2 to 13 carbons, hydroxyalkyl of 1 to 5 carbons, 2-cyanoethyl, epoxyalkyl of 3 to 10 carbons, or poly(oxyalkylene) of 4 to 30 carbons, R 5 is selected from hydrogen or alkyl of 1 to 4 carbons, R 6 is hydrogen, hydroxyl, or alkoxy of 1 to 4 carbons, and when R 6 is hydrogen, X is a divalent radical selected from --Z--R 7 --C(═O)--N(R 8 )--, --Z--C(═O)--N(R 8 )--, --Z--C(═O)--R 9 --C(═O)--N(R 8 )--, --R 7 --C(═O)--N(R 8 )--, or --C(═O)--N(R 8 )--, and Z is --O--, --N(R 10 )--, or --N(R 12 )--R 11 --N(R 12 )-- and when R 6 is hydroxyl or alkoxy, X is a divalent radical selected from --R 7 --C(═O)--N(R 8 )-- or --C(═O)--N(R 8 )-- and R 7 is an alkylene diradical of 1 to 4 carbons, R 8 is selected from hydrogen, primary or secondary alkyl of 1 to 8 carbons, aralkyl of 7 to 12 carbons or cycloalkyl of 5 to 12 carbons, R 9 is selected from a direct bond, or a substituted or unsubstituted radical of alkylene of 1 to 14 carbons, oxydialkylene of 4 to 10 carbons, thiodialkylene of 4 to 10 carbons, alkenylene of 2 to 10 carbons, o, m, or p-phenylene wherein the substituents are selected from lower alkyl, lower alkoxy, hydroxy, bromine, chlorine, mercapto or lower alkylmercapto, R 10 and R 12 are selected from hydrogen, alkyl of 1 to 10 carbons, aryl of 6 to 12 carbons or cycloalkyl of 5 to 12 carbons and R 10 may also be a radical of the formula ##STR11## or a 2-cyanoethyl radical and R 11 is alkylene of 2 to 12 carbons.

Claim 4

The polymer bound hindered amine light stabilizer composition of claim 2 wherein R 4 is hydrogen, methyl, acetyl, benzoyl, 2-hydroxyethyl or benzyl, R 5 is hydrogen or methyl, R 6 is hydrogen, X is selected from --Z--C(═O)--N(R 8 )--, --Z--R 7 --C(═O)--N(R 8 )-- or --Z--C(═O)--R 9 --C(═O)--N(R 8 )--, Z is --O-- or --N(R 10 )--, R 7 is --(CH 2 ) b --, R 8 is hydrogen or methyl, R 9 is a direct bond or alkylene diradical of 1-7 carbons, b is 1 or 2 and R 10 is hydrogen or a 2,2,6,6-tetramethyl-4-piperidinyl radical.

Claim 5

The composition of claim 3 wherein R 4 is hydrogen or methyl, X is --Z--R 7 --C(═O)--N(R 8 )--, Z is --N(R 10 )--, R 5 , R 6 , R 8 and R 10 are hydrogen, and R 7 is --(CH 2 ) b --.

Claim 6

The composition of claim 4 wherein R 4 is hydrogen and b is 1.

Claim 7

The composition of claim 4 wherein R 4 is hydrogen and b is 2.

Claim 8

The composition of claim 3 wherein R 4 is hydrogen, methyl, or acetyl, X is --Z--C(═O)--R 9 --C(═O)--N(R 8 )--, Z is --N(R 10 )--, and R 5 , R 6 , R 8 and R 10 are hydrogen.

Claim 9

The composition of claim 7 wherein R 4 is hydrogen and R 9 is a direct bond.

Claim 10

The composition of claim 7 wherein R 4 is hydrogen and R 9 is a 1,2-ethylene diradical.

Claim 11

The composition of claim 7 wherein R 4 is hydrogen and R 9 is a 1,4-butylene diradical.

Claim 12

The composition of claim 7 wherein R 4 is hydrogen and R 9 is a 1,7-heptylene diradical.

Claim 13

The composition of claim 7 wherein R 4 is acetyl and R 9 is a direct bond.

Claim 14

The composition of claim 3 wherein X is --Z--C(═O)--R 9 --C(═O)--N--(R 8 )--, Z is --N(R 10 )--, R 4 , R 5 , R 6 and R 10 are hydrogen, R 8 is methyl and R 9 is a direct bond.

Claim 15

The composition of claim 3 wherein X is --Z--C(═O)--N(R 8 )--, Z is --O--, R 4 is methyl and R 5 , R 6 and R 8 are hydrogen.

Claim 16

The composition of claim 3 wherein X is --Z--C(═O)--N(R 8 )--, Z is --N(R 10 )-- and R 4 , R 5 , R 6 , R 8 and R 10 are hydrogen.

Claim 17

A polymer composition comprising a synthetic polymer which is subject to thermal, oxidative, or actinic light degradation and an effective amount of the composition of claim 1 to stabilize the polymer composition against the degradative effects of heat or light.

Claim 18

The composition of claim 16 wherein the synthetic polymer or copolymer is selected from polystyrene, rubber-modified polystyrene, polyolefins, polyphenylene ether, polyamide or mixtures thereof.

Claim 19

The composition of claim 17 wherein the synthetic polymer is polypropylene.

Claim 20

The composition of claim 17 wherein the synthetic polymer is polyethylene.