N-Heterocyclic substituted acryloyl polymeric compounds

Claim 1

A copolymeric compound useful as a light stabilizer and UV absorber in organic materials which carries side N-heterocyclic rings and contains the recurring structural unit of the formula (I) ##STR24## in which R 1 and R 2 are hydrogen and R 3 is hydrogen or C 1 -C 4 alkyl and R 4 is a N-heterocyclic substituent of the formulae (II), (III), (IV) or (V) ##STR25## in which R 5 is hydrogen, oxyl, C 1 -C 18 alkyl, C 3 -C 8 alkenyl, C 3 -C 6 alkynyl, C 7 -C 12 aralkyl, C 2 -C 21 alkoxyalkyl, cyanomethyl, an aliphatic acyl group having 1 to 4 carbon atoms or a group --CH 2 COOR 7 , in which R 7 is C 1 -C 12 alkyl, C 3 -C 8 alkenyl, phenyl, C 7 -C 8 aralkyl or cyclohexyl, and R 6 is hydrogen or methyl and Y is --O-- or ##STR26## in which R 9 is hydrogen, C 1 -C 12 alkyl, C 5 -C 8 cycloalkyl or C 7 -C 12 aralkyl, and X is a group of the formula --O--CH(R 10 )--CH 2 -- (VI), in which R 10 is hydrogen, methyl, ethyl, phenoxymethyl or phenyl, and n is 0 or 1, and R 11 is C 1 -C 18 allyl, cyclohexyl, phenyl, benzyl or a group of the formula --CH 2 --COOR 12 (VII), in which R 12 is C 1 -C 8 alkyl, and, furthermore, R 4 is one of the groups of the formulae (VIII), (IX), (X) or (XI) ##STR27## in which Y and Y have the meaning defined above for Y, and Y is --O-- or ##STR28## in which R 9 is hydrogen or C 1 -C 8 alkyl, and X is a group of the formula --CH(R 10 )--(CH 2 ) b --O-- (XII), in which b is 1 or 2 and R 10 is as defined above, and a is 0 or 1, and R 13 is hydrogen, methyl or chlorine and R 14 is hydrogen, methyl, methoxy or chlorine and R 15 is hydrogen or hydroxyl and R 16 is H, C 1 -C 12 alkyl, C 5 -C 8 cycloalkyl, phenyl, C 7 -C 12 aralkyl or chlorine and X is a group of the formula (XII), in which R 10 is as defined above and b is 1, and R 17 is hydrogen or C 1 -C 4 alkyl and R 18 is C 1 -C 12 alkyl, C 5 -C 8 cycloalkyl or a group of the formula (XIII) ##STR29## in which R 5 is hydrogen, C 1 -C 8 alkyl, C 3 -C 8 alkenyl, C 7 -C 12 aralkyl or an aliphatic acyl group having 1 to 4 carbon atoms and R 6 is as defined above, and R 19 is --CN or a group of the formula --COOR 18 (XV), in which R 18 is as defined above, with the proviso that, in the copolymeric molecule containing the recurring structural unit I, at least one (A) of the substituents R 4 is one of the groups of the formula (II), (III), (IV) or (V) and at least one (B) of the substituents R 4 is one of the groups of the formulae (VIII), (IX), (X) or (XI), (A):(B) being in a ratio of 50:1 to 1:50.