Patents by Inventor F. Holmes Simons

F. Holmes Simons 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).

  • Drawn polyester yarn having a high tenacity, a high modulus and a low shrinkage
    Patent number: 6015616
    Abstract: In the instant invention, drawn yarns, with the following properties, are obtained: tenacity of at least 8.5 gpd; initial modulus of at least 150 gpd/100%; and shrinkage of less than 6%. Alternatively, the yarn may be characterized as: tenacity of greater than 10 gpd; initial modulus of greater than 120 gpd/100%; and shrinkage of less than 6%. These yarns are made by a process directed mainly toward affecting the yarn properties as they are spun.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: January 18, 2000
    Assignee: Arteva North America S.A.R.L.
    Inventors: F. Holmes Simons, Ron L. Griffith
  • Fiber having improved properties, compositions for producing such fibers, and process for improving properties of fibers
    Patent number: 5714258
    Abstract: An improved polyester fiber, polymer composition for producing such fibers by spinning and drawing, and a process for improving the production of fibers from polyester is disclosed wherein an aliphatic diester such as ethylene glycol distearate is incorporated into the polyester resin prior to spinning fibers from the resin in trace amounts of from about 0.01 to about 0.4 percent by weight of the polyester. The composition improves the process of spinning and drawing fibers from the resin and produces superior fibers.
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: February 3, 1998
    Assignee: Hoechest Celanese Corporation
    Inventor: F. Holmes Simons
  • Polyester/polyamide composite fiber
    Patent number: 5582913
    Abstract: An improved polyester/polyamide composite fiber is provided. The composite fiber includes a polyamide component generally considered to lack compatibility with a polyester component. Advantageously, the composite fiber includes an adhesion-promoting polymer in an amount effective to provide adhesion of the polyamide component to the polyester component. The composite fiber beneficially provides strength and cost advantages.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: December 10, 1996
    Assignee: Hoechst Celanese Corporation
    Inventor: F. Holmes Simons
  • Drawn polyester yarn having a high tenacity and high modulus and a low shrinkage
    Patent number: 5238740
    Abstract: The instant invention is directed to a drawn polyester yarn. This yarn is characterized by an initial secant modulus greater than 150 grams per denier/100%. The yarn may be further characterized by either a shrinkage of less than 8% or a tenacity of greater than 7.5 grams per denier. Alternatively, the yarn is characterized by a tenacity of at least 10 grams per denier, an initial modulus of at least 120 grams per denier/100% and a shrinkage of less than 8%.
    Type: Grant
    Filed: November 20, 1992
    Date of Patent: August 24, 1993
    Assignee: Hoechst Celanese Corporation
    Inventors: F. Holmes Simons, Ronald L. Griffith
  • Spinning process for producing high strength, high modulus, low shrinkage yarns
    Patent number: 5186879
    Abstract: A process for spinning an organic synthetic melt spinnable polymer includes the steps of: extruding the polymer through a spinneret; passing the filaments from the spinneret through an elongated zone; maintaining the filaments at a temperature above the glass transition temperature of the polymer within the zone; and thereafter converging the filaments. Alternatively, the process includes the steps of: extruding the polymer through a spinneret; providing an elongated zone having a length of at least 5 meters or means for controlling the temperature within said zone from a predetermined maximum to a predetermined minimum; passing the filaments through the zone; and thereafter converging the filaments.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: February 16, 1993
    Assignee: Hoechst Celanese Corporation
    Inventors: F. Holmes Simons, Ronald L. Griffith
  • Novel hosiery yarn
    Patent number: 4031692
    Abstract: Poly(tetramethylene terephthalate) hosiery yarn.
    Type: Grant
    Filed: January 7, 1976
    Date of Patent: June 28, 1977
    Assignee: Fiber Industries, Inc.
    Inventors: F. Holmes Simons, Michael P. Taylor