Patents by Inventor Robina Hogan

Robina Hogan 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).

  • Manufacture of cellulose ester filaments: Lubrication in the spinning cabinet
    Publication number: 20070222102
    Abstract: In the manufacture of cellulose ester fibers, a dope is extruded into filaments. Extrusion occurs in an elongated cabinet having an outlet for the filaments. The filaments are taken up after exiting the outlet. The filaments are lubricated at the outlet of the cabinet.
    Type: Application
    Filed: March 24, 2006
    Publication date: September 27, 2007
    Inventors: Heather Clarkson, Cheryl Corallo, Robina Hogan, Ramiro Diaz, Ronald Nivins
  • Cellulose acetate tow and method of making same
    Publication number: 20050287368
    Abstract: A fiber finish, particularly for cellulose acetate tow, is an emulsion of 62.0 to 65.0 weight percent mineral oil, 27.0 to 28.0 weight percent emulsifiers, and the balance being water. The emulsifiers are a mixture of 50.0 to 520. weight percent sorbitan monolaurate and 48.0 to 50.0 weight percent POE (20) sorbitan monolaurate. The finish has an add-on weight of 3 to 8 weight percent of the total weight of the tow.
    Type: Application
    Filed: June 25, 2004
    Publication date: December 29, 2005
    Inventors: Cheryl Corallo, Robina Hogan