Patents by Inventor Roger G. Weatherhead

Roger G. Weatherhead 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).

  • Epoxy resin accelerator
    Patent number: 3988257
    Abstract: A process for preparing cured epoxy resins, the cured epoxy products, and the curing composition employed, are disclosed. The process comprises contacting an epoxy resin with the curing composition, i.e., a polyamine curing agent and a phenyl urea accelerator.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: October 26, 1976
    Assignee: Shell Oil Company
    Inventors: Tony Harrison, Roger G. Weatherhead
  • Phenyl urea epoxy resin accelerator
    Patent number: 3945971
    Abstract: A process for preparing cured epoxy resins, the cured epoxy products, and the curing composition employed, are disclosed. The process comprises contacting an epoxy resin with the curing composition, i.e., a polyamine curing agent and a phenyl urea accelerator. Also disclosed are cured epoxy resin compositions useful in adhesives, coatings, floorings, laminates and civil engineering applications.
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: March 23, 1976
    Assignee: Shell Oil Company
    Inventors: Tony Harrison, Roger G. Weatherhead