Patents by Inventor Cecil W. Capps

Cecil W. Capps 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).

  • Continuous process for drying, crystallizing and solid state polymerizing polyesters
    Patent number: 3969324
    Abstract: A continuous process is provided for the drying, crystallizing and solid state polymerization of fiber-forming crystallizable polyesters by subjecting polyester pellets of a specific viscosity of about 0.34, with a carboxyl concentration of about 15 milequivalents per gram and a particle size of between -10 and +20 mesh, to a temperature of not more than about 80.degree.C. until the water content of the flake is below 0.05%; and then raising the temperature to about 230.degree.-240.degree.C. until the specific viscosity of the polymer is equal to or greater than about 0.55.
    Type: Grant
    Filed: November 12, 1973
    Date of Patent: July 13, 1976
    Assignee: Monsanto Company
    Inventors: Eugene E. Berkau, Cecil W. Capps