Polymeric light stabilizers for plastics

Claim 1

A polyamine of the formula ##STR61## wherein A represents a divalent radical of the formulae XXXI to XXXIX, ##STR62## in which R represents hydrogen or alkyl of 1-5 C atoms, R' represents hydrogen, alkyl of 1-12 C atoms, allyl, benzyl, acetyl, acryloyl or crotonyl, X" is oxygen or NH, Z represents a direct bond, --CH 2 CH 2 -- or --OCH 2 CH 2 CH 2 --, Z 2 represents one of the radicals --N(R")--, --NR 3 --CO--NR 3 --, --NR 3 --CO--CO--NR 3 --, --NR 3 --CO--Z 3 --CO--NR 3 --, alkylene of 4-10 C atoms, p-xylylene, ##STR63## -O-alkylene-O- of 1-10 C atoms, -O-alkenylene-O- of 4-8 C atoms or -O-xylylene-O-, in which R 3 represents hydrogen, alkyl of 1-12 C atoms, cyclohexyl, benzyl or aryl of 6-14 C atoms, R" represents alkanoyl of 1-8 C atoms or alkenoyl of 3-5 C atoms and Z 3 represents alkylene of 1-10 C atoms or phenylene, B" represents an alkylene radical of 2-12 C atoms, an alkenylene radical of 4-8 C atoms, a xylylene or hexahydroxylylene radical, a cyclohexylene radical or a radical of the formula --CH 2 CH 2 OCH 2 CH 2 -- or --CH 2 CH 2 O-phenylene-OCH 2 CH 2 -, R 5 is hydrogen, methyl or phenyl, Z 5 represents alkylene or alkenylene of 4-8 C atoms, p-xylylene or a group of the formula ##STR64## wherein R 5 is as previously defined, Z 7 is alkylene of 2-12 C atoms, arylene of 6-12 C atoms, 4,4'-dicyclohexylenemethane or a radical -phenylene-Z 4 -phenylene- in which Z 4 represents --CH 2 --, C(CH 3 ) 2 , --O-- or --SO 2 --, Z 7' represents alkylene or alkenylene of 4-8 C atoms or p-xylylene and Z 8 represents an alkylene radical of 1-6 C atoms or phenylene, Y represents hydrogen, alkyl of 1-12 C atoms, cyclohexyl, benzyl, or a polyalkylpiperidine radical of the formula ##STR65## wherein R, R' and Z are as previously defined and F is alkenylene of 4-8 C atoms, xylylene, hexahydroxylylene or one of the radicals ##STR66## --CH 2 --CH(OH)--CH 2 --, --CH 2 --CH(OH)--CH 2 --O--Z 10 --O--CH 2 --CH(OH)--CH 2 -- or --CH 2 CH 2 --O--CH 2 CH 2 -- in which Z 10 represents alkylene of 2-6 C atoms, --CH 2 CH 2 --O--CH 2 CH 2 --, cyclohexylene, phenylene or ##STR67## and n denotes a value of from 2 to about 50.