Patents by Inventor E. Renee Perusich

E. Renee Perusich 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).

  • Spinnable dopes for making oriented, shaped articles of lyotropic polysaccharide/thermally-consolidatable polymer blends
    Patent number: 5073581
    Abstract: Spinnable dopes containing fiber-forming polymers being at least about 55% and less than about 80% lyotropic polysaccharide and at least about 20 percent and less than about 45% thermally-consolidatable polymer and a process for making oriented, shaped articles of lyotropic polysaccharide/thermally-consolidatable polymer blends by orienting the dopes and removing the solvent.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: December 17, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Carmen A. Covelli, E. Renee Perusich
  • Process for making oriented, shaped articles of lyotropic polysaccharide/thermally-consolidatable polymer blends
    Patent number: 5000898
    Abstract: A process for making oriented, shaped articles of lyotropic polysaccharide/thermally-consolidatable polymer blends by orienting spinnable dopes containing fiber-forming polymers being at least about 55% and less than about 80% lyotropic polysaccharide and at least about 20 percent and less than about 45% thermally-consolidatable polymer and removing the solvent.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: March 19, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Carmen A. Gabriel, E. Renee Perusich