Patents by Inventor Sherri Elder

Sherri Elder 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).

  • Polymerization inhibition of isoprene
    Patent number: 6262323
    Abstract: It has been discovered that the polymerization of diene compounds, such as isoprene, may be inhibited by the addition of a composition that contains a at least one phenylenediamine, at least one sterically hindered phenol, and at least one hydroxylamine. This three-component composition exhibits synergistically improved results over the use of the components individually or in paired combinations. In one preferred embodiment, the polymerization inhibiting composition includes phenylenediamine (PDA), butylated hydroxytoluene (BHT), and N,N′-diethylhydroxylamine (DEHA).
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: July 17, 2001
    Assignee: Baker Hughes Incorporated
    Inventor: Sherri Elder