Patents by Inventor Sandra K. Morin

Sandra K. Morin 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).

  • Coal tar containing foaming urethane composition and a method for repairing defects in structural components
    Patent number: 4661532
    Abstract: Hydrophobic polyurethane compositions can be used to repair or fill-in surface defects in structural components. The hydrophobic composition can be packaged in two parts, a hydrophobic polyol part and a isocyanate part wherein the polyol part comprises a polyol and a coal tar or pitch composition and the isocyanate part comprises a reactive isocyanate compound. The parts of the composition can be mixed and applied to surface defects of structural members such as railroad ties and can rapidly form a hard, permanent, strongly bonded repair.
    Type: Grant
    Filed: June 25, 1985
    Date of Patent: April 28, 1987
    Assignee: H. B. Fuller Company
    Inventor: Sandra K. Morin