Patents by Inventor Raymond A. Schell

Raymond A. Schell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Phenolic antioxidants and stabilized organic compositions
    Patent number: 5075367
    Abstract: The 2-alkyl-6-t-butyl-4-(pentamethylbenzyl)phenols in which the 2-alkyl group is t-butyl or methyl are novel compounds having melting points sufficiently low to make them attractive as antioxidants for low melting polymers such as polyethylene, polypropylene, and polystyrene.
    Type: Grant
    Filed: December 11, 1990
    Date of Patent: December 24, 1991
    Assignee: Ethyl Corporation
    Inventors: Raymond A. Schell, George L. Mina
  • Antioxidant
    Patent number: 4870214
    Abstract: Antioxidant compounds having the structure: ##STR1## in which p is 1 or 2 and + is a tert-butyl group provide excellent oxidation stability, melt flow index and yellow index, especially in polypropylene.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: September 26, 1989
    Assignee: Ethyl Corporation
    Inventors: George L. Mina, Raymond A. Schell
  • Preparation of unsaturated alcohols
    Patent number: 3956408
    Abstract: A process for preparing unsaturated organic compounds by reacting an allylic alcohol and a ketone or aldehyde, in the presence of carbon monoxide and a Group VIII metal salt/germanium or tin salt combination catalyst is described. The unsaturated organic compounds are principally unsaturated alcohols having a molecular weight greater than the allylic alcohol reactant.
    Type: Grant
    Filed: June 5, 1975
    Date of Patent: May 11, 1976
    Assignee: Ethyl Corporation
    Inventors: Raymond A. Schell, Lawrence J. Kehoe