Lubricant compositions containing N-substituted naphthylamines as antioxidants (US Patent 3944492)

Patent number: 3944492 Granted: 1976-03-16 Filed: 1972-05-22 Inventors: Edward L. Wheeler (Woodbury, CT, US) Assignees: Uniroyal, Inc. (New York, NY, US)

Abstract

Derivatives of diphenylamine or phenylnaphthylamine of the types ##SPC1## Where R.sub.1, R.sub.9 and R.sub.12 are phenyl or p-tolyl groups and the remaining R's, X and Y may be alkyl or various other substituents, are useful antioxidants for lubricating oils or for various polymeric substrates (e.g. polypropylene) especially in