Oxadiazolylphenyl aromatic ester compounds and their use as ultraviolet stabilizer in organic compositions

Claim 1

A compound having the formula ##STR15## wherein A is a member of the group comprising members having the structure ##STR16## wherein X and Y are a nitrogen atom; Z is an oxygen atom; R 1 is hydrogen, chloro, bromo, lower alkyl, chloro substituted lower alkyl, cyclohexyl, phenyl, alkoxy containing 1 to 20 carbon atoms, cyano, dimethyl substituted amino and phenyl substituted with not more than two members of the group consisting of chloro, phenyl, cyano, lower alkyl, and alkoxy containing 1 to 20 carbon atoms; I is the same as R 1 and is present on all positions of the benzenoid ring, except the carbon atom attached to the Y substituent and the carbon atom attached to the carboxyl group connecting the heterocyclic aromatic A group with the aromatic B group, said carboxyl connecting group is attached to the benzenoid ring in either the meta or para position from the carbon atom connected to the Y substituent; and B is a group having the formula ##STR17## wherein at least one R 2 or R 6 is hydrogen and the other R 2 , R 3 , R 4 , R 5 and R 6 are hydrogen, or not more than three members of the group consisting of lower alkyl, cyclohexyl, phenyl, phenyloxy, alkoxy containing 1 to 20 carbon atoms, hydroxy, nitrile, chloro and bromo.