Patents by Inventor Elizabeth C. Cooper

Elizabeth C. Cooper 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).

  • Foamable compositions
    Patent number: 5242494
    Abstract: This invention relates to a foamable silicate composition comprising (a) one or more alkali metal silicates, (b) a blowing agent, (c) a hardener which can be an acetate or a formate ester of a di-polyhydric alcohol or a polyoxyalkylene glycol and (d) a surfactant having a hydrophilic-lypophilic balance of at least 8. The formulations are readily produced by mixing the components, are pourable, pumpable and sprayable, and give rise to foams of excellent compressive strength and thermal insulation properties under ambient conditions.
    Type: Grant
    Filed: August 5, 1991
    Date of Patent: September 7, 1993
    Assignee: British Technology Group Ltd.
    Inventors: Ian C. Callaghan, Elizabeth C. Cooper, Anne Lepre, Alistair S. Taylor