Patents by Inventor Simon Ashley Mortimer

Simon Ashley Mortimer 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).

  • Process for the manufacture of lyocell fibre
    Patent number: 5725821
    Abstract: A process of manufacturing lyocell fiber with an increased tendency to fibrillation which includes dissolving cellulose in a tertiary amine N-oxide solvent to form a solution. The degree of polymerization of the cellulose is not more than about 450 and the concentration of cellulose in the solution is at least 16 percent by weight. The solution is extruded through a die to form a plurality of filaments which are washed to remove the solvent, thereby forming the lyocell fiber which is then dried.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: March 10, 1998
    Assignee: Courtaulds Fibres (Holdings) Limited
    Inventors: James Martin Gannon, Ian Graveson, Simon Ashley Mortimer