Patent ID: 7642303

Claim:
A thermoplastic article, the article having a form and thickness and comprising: (a) a clear or translucent thermoplastic, and (b) an amount of at least one UV absorbing compound that is thermally stable to thermoplastic processing temperatures, of formulas (I), (II), (III), (IV), (V) or (VI) sufficient to reduce the transmission of ultraviolet radiation into the article, wherein M is -GCH═N—N═CHG- L 1 is H, C 1 -C 12 alkyl, (CH 2 ) n OH, COOR, SO 2 R, OR 1 , Cl, phenyl, C(W)R 7 , NHCOR, NR 2 , phenyl, or imino, provided R is H or C 1 -C 12 alkyl, R 1 is H or C 1 -C 12 alkyl, n is an integer ranging from about 2 to about 8, R 7 is C 1 -C 12 alkyl, phenyl or phenalkyl and W is O or S; L 2 is (a) A, A-V—B, [V—B] i , or V where (i) A and B are independently (ii) i is an integer ranging from about 1 to about 6; and (iii) V is independently (CHR 10 ) o —U r —(CH 2 ) p where U is an aliphatic ring containing from 4 to 10 carbons or an aryl group, R 10 is H or CH 3 , r is 0 or 1, o is 0 or an integer ranging from about 1 to about 9 and p is 0 or an integer ranging from about 1 to about 9; or (b) where Z, T and Y are independently carbon or nitrogen and J is OR, Cl, OAc, NH 2 or NHR where R is C 1 -C 12 alkyl; D, E and G are independently phenyl, substituted phenyl, naphthyl, substituted naphthyl, thienyl, substituted thienyl, thiazoyl, substituted thiazoyl, thiadiazolyl, substituted thiadiazolyl, oxadiazolyl, substituted oxadiazolyl, pyridyl, substituted pyridyl, quinolyl or substituted quinolyl; m is 1 or 2; when m is 1, L is L 1 or when m is 2, L is L 2 ; and s is 0 or an integer ranging from about 1 to about 8.