Patents by Inventor Jim Robert James

Jim Robert James 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).

  • Cellulosic fibres
    Patent number: 5731083
    Abstract: Carboxymethyl cellulose fiber having a degree of substitution of at least 0.1, preferably 0.2-0.5, carboxymethyl groups per glucose unit is derived from solvent-spun cellulose fiber, for example by reaction with a strong alkali and a monochloroacetate reagent. The fiber has an absorbency of at least 8 grams, usually at least 15 grams, 0.9% saline solution per gram of fibre and a tenacity of at least 10, usually at least 15, cN/tex. It can be used for absorbent personal products.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: March 24, 1998
    Assignee: Courtaulds PLC
    Inventors: Hardev Singh Bahia, Jim Robert James