Patent ID: 7498467

Claim:
A method of using an aromatic hydroxyamine derivative having a structure represented by the general formula (I) as an antioxidant: wherein R 1 , R 2 and R 3 are each independently a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; X is a hydrogen atom or an OH group; Y is a hydrogen atom or an NHR 1 group; A is a direct bond, —O—, —NH—, —SO 2 —, —CH 2 — or —C(CH 3 ) 2 —, and when an OH group and an NHR 1 group are introduced to a unilateral benzene ring, these groups are respectively bonded to adjacent positions of the benzene ring; and n is 0 or 1 with the proviso that when n is 0, R 1 is not a hydrogen atom.