Patents by Inventor Walter W. Toy

Walter W. Toy 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).

  • Alloy rayon fibers of regenerated cellulose and copolymeric acrylic acid salts
    Patent number: 4399255
    Abstract: Alloy rayon fiber of regenerated cellulose and an at least partially neutralized copolymer of acrylic or methacrylic acid and a comonomer selected from an hydroxyalkyl (C.sub.2 -C.sub.6) ester of such acid or a styrenic monomer. The copolymer is present in an amount effective to increase the fluid holding capacity of the fiber. Masses of the fibers are useful as surgical dressings, tampons and other fluid-absorbing articles.
    Type: Grant
    Filed: September 10, 1982
    Date of Patent: August 16, 1983
    Assignees: Avtex Fibers Inc., Rohm & Haas Co.
    Inventors: Frederick R. Smith, Walter W. Toy, David Witiak