DISCOLORATION INHIBITORS FOR AROMATIC AMINES

摘要

DISCLORATION INHIBITORS FOR AROMATIC AMINES Substituted aromatic amines containing a discoloration inhibiting amount of a substituted phenol selected from 2,6-dialkylphenols, 2,4,6-trialkylphenols and dibenzylphenol. A method and composition are provided for inhibiting discoloration of alkylated aromatic amines and diamines. A minor portion of the substituted phenol described above is combined with a fresh, water white substituted aromatic amine of structure wherein m is 1 or 2, n is 1 to 5, m + n is not greater than 6, and the R are independently selected alkyl, cycloalkyl, aryl, aralkyl, or alkaryl, said amine being subject to gradual discoloration.