SULPHUR-CONTAINING N,N'-DISUBSTITUTED P-PHENYLENEDIAMINES THEIR PREPARATION AND USE AS ANTIOXIDANT OR ANTIOZONANTS FOR POLYMERS

摘要

N,N'-disubstituted-p-phenylenediamines, wherein one of the substituents is a R-thiomethylphenyl moiety, are produced by a reaction of thiols, formaldehyde, and an N-phenyl-p-phenylenediamine in the presence of an acid. These compounds are antioxidants and antiozonants in rubber compounds.