| abstract |
The present invention relates to compounds containing dual substitutions of an aromatic amine and hindered phenol functionality useful as stabilizers for organic materials. These compounds are of the general formula: <IMAGE> (I) wherein: PHI <IMAGE> R1 and R2 are independently selected from the group consisting of hydrogen, substituted or unsubstituted aryl, and substituted or unsubstituted alkyl of 1 to 20 carbon atoms; R3 is alkylene of 1 to 10 carbon atoms; m is 0 or 1; n is an integer of 1 to 10; q is an integer of 0 to 8; z is 1 or 2, provided that, when q is 0, z must be 1; X represents the links of a chain q links in length, said links being selected from the group consisting of carbon, nitrogen, oxygen, sulfur, silicon, and mixtures thereof; and Y is an aromatic group or PHI , provided that Y can be PHI only when q is 0 and m is 1. |