Patents Examined by Cynthia A. Prezlick
  • Inhibiting polymerization of vinyl aromatic monomers
    Patent number: 4434307
    Abstract: Vinyl aromatic compounds are stabilized against undesired polymerization by adding to the vinyl aromatic compounds small amounts of at least one N,N-diarylhydroxylamine and at least one mono-or ditertiary alkyl catechol and/or at least one mono-or ditertiary alkylhydroquinone.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: February 28, 1984
    Assignee: Atlantic Richfield Company
    Inventor: Richard F. Miller