Patents by Inventor Debra H. Stutts

Debra H. Stutts 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).

  • Chain extenders for polyurethanes
    Patent number: 4931487
    Abstract: Polyurethanes are produced from compositions comprising at least one relatively high equivalent weight component and at least one chain extender selected from the group consisting of heterocyclic diamines, diaromatic disulfides, alkyl ethers of halogen-substituted aromatic diamines, polysubstituted alkyl diamines and alkyl acid esters of halogen-substituted diamino phenols of designated structures. Polyurethanes having high thermal stability, high tear strength and high modulus are produced.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: June 5, 1990
    Assignee: Dow Chemical Company
    Inventors: Ralph D. Priester, Jr., Edwin J. Strojny, Debra H. Stutts