Patents by Inventor William H. Selcer

William H. Selcer 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).

  • Stabilization of organic materials
    Patent number: 4154723
    Abstract: Organic materials normally subject to oxidative deterioration (e.g. polymers such as polyolefins) can be stabilized against such deterioration by incorporating therein a stabilizing amount of an N,N'-bis[alkylhydroxyphenyl)alkanoyloxyhydrocarbyl]oxamide.
    Type: Grant
    Filed: December 21, 1977
    Date of Patent: May 15, 1979
    Assignee: Monsanto Company
    Inventors: Richard H. Hirsch, William H. Selcer
  • Oxamide stabilizers for organic materials
    Patent number: 4145556
    Abstract: Novel N,N'-bis?(alkylhydroxyphenyl)alkanoyloxyhydrocarbyl!oxamides which can be prepared by reacting an alkylhydroxyphenylalkanoic acid, an ester or anhydride thereof or a corresponding acid halide with an N,N'-bis(hydroxyhydrocarbyl)oxamide, are useful as stabilizers of organic materials normally subject to oxidative deterioration, e.g. polymers such as polyolefins.
    Type: Grant
    Filed: December 21, 1977
    Date of Patent: March 20, 1979
    Assignee: Monsanto Company
    Inventors: Richard H. Hirsch, William H. Selcer