Patents by Inventor Christopher David Potter

Christopher David Potter 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).

  • Patent number: 5882356
    Abstract: The fibrillation tendency of solvent-spun cellulose fiber is reduced by treating the previously dried fiber with a chemical reagent containing at least two functional groups which are reactive with cellulose and which are electrophilic carbon--carbon double bonds, particularly vinyl sulfone groups, or precursors thereof or electrophilic three-membered heterocyclic rings or precursors thereof. The chemical reagent is preferably colorless and is preferably applied to the fiber from aqueous solution. The fiber may be contained in a woven or knotted fabric.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: March 16, 1999
    Assignee: Courtaulds Fibres (Holdings) Limited
    Inventor: Christopher David Potter
  • Patent number: 5779737
    Abstract: The present invention relates to a method for reducing the fibrillation tendency of lyocell fibre. Never-dried fibre is treated by an inorganic alkali solution and a chemical reagent having an average of greater than 2.1 acrylamido groups, and then heated. This method produces cellulose materials with a smooth white appearance resistant to creasing in the wet state.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: July 14, 1998
    Assignee: Courtaulds Fibres Holdings Limited
    Inventors: Christopher David Potter, Peter Dobson
  • Patent number: 5759210
    Abstract: The fibrillation tendency of lyocell fabrics, and the degree of fibrillation of fibrillated lyocell fabrics, can be reduced by treating such fabrics with a cross-linking agent in the presence of an acid catalyst. Good results may be obtained when the ratio by weight of the catalyst to the optional cross-linking agent is at least about 0.5:1. Good results may be obtained when the amount of cross-linking agent fixed on the fabric is in the range 0.5 to 1.5 percent on weight of fabric.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: June 2, 1998
    Assignee: Courtaulds Fibres (Holdings) Limited
    Inventors: Christopher David Potter, James Martin Taylor