Patents by Inventor Stephen M. Oswalt

Stephen M. Oswalt 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).

  • Primer and sealant for glass and coated metal
    Patent number: 4643794
    Abstract: The process of this invention uses a single primer and a fast curing two component adhesive sealant to adhere automotive glass surfaces to coated metal surfaces.
    Type: Grant
    Filed: March 4, 1986
    Date of Patent: February 17, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Jeffrey W. Saracsan, Stephen M. Oswalt
  • Sag resistant at essentially 1:1 ratio two component adhesive
    Patent number: 4552934
    Abstract: Improved two component adhesives allowing the components to be mixed at essentially a 1:1 ratio, giving excellent sag resistance, low viscosity, excellent handling ability and satisfactory gel time, said adhesives being composed of a prepolymer composition and a curative composition that can be mixed preferably at 1:2 to 2:1 ratio and a curative composition composed of a mixture of a reaction product of a multiple hydroxyl polyol of relatively low equivalent weight with a small amount of an organic polyiisocyanate and a polyamine.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: November 12, 1985
    Assignee: Ashland Oil, Inc.
    Inventors: Thomas G. Rabito, Richard L. Cline, Stephen M. Oswalt, Marvin T. Randleman, Michael E. Kimball
  • Sealer for polyester and method of use to obtain laminates
    Patent number: 4500606
    Abstract: A sealer for solid polyester composition to reduce evolution of vapors at temperature 190.degree. C. or higher for 1 hour or more and to improve the bond at these temperatures with isocyanate polyurethane adhesives, epoxy adhesive or acrylic adhesive, the sealer comprising a mixture of 100 to 1000 parts of phenol-formaldehyde resin, 90 to 110 parts of a polyvinyl acetal resin, 10 to 40 parts of epoxy resin, and sufficient solvent to render the mixture brushable, sprayable or flowable.
    Type: Grant
    Filed: November 16, 1983
    Date of Patent: February 19, 1985
    Assignee: Ashland Oil, Inc.
    Inventors: Thomas G. Rabito, Stephen M. Oswalt, Richard L. Cline