Carbohydrate Or Protein Patents (Class 264/190)
  • Regenerated cellulose fiber
    Patent number: 11124629
    Abstract: The present invention relates to a regenerated cellulose fiber which contains a hydrophobic substance selected from the group consisting of alkyl ketene dimers, alkenyl ketene dimers, alkyl succinic anhydrides, alkenyl succinic anhydrides, alkyl glutaric acid anhydrides, alkenyl glutaric acid anhydrides, alkyl isocyanates, alkenyl isocyanates, fatty acid anhydrides as well as mixtures thereof incorporated in the cellulose matrix.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: September 21, 2021
    Assignee: KELHEIM FIBRES GMBH
    Inventors: Walter Roggenstein, Frank Hermanutz, Philipp Wimmer
  • Method of manufacturing a caramel-containing cellulosic article
    Patent number: 4778639
    Abstract: A caramel-containing cellulosic article, e.g. casing, with the caramel uniformly distributed and immobilized, without chemical bonding, in the cellulose so as to be substantially nonextractable in water and steam and method of producing said article by the alkali cellulose, xanthate, viscose, extrusion and acid-salt bath regeneration procedure.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: October 18, 1988
    Assignee: Viskase Corporation
    Inventors: Shiu-Chung Jon, Myron D. Nicholson
  • 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
  • Alloy rayon fibers having dispersed therein an amide polymer and a polyacrylic acid salt
    Patent number: 4179416
    Abstract: Alloy fibers having high fluid-holding capacity, and a method for making the same, the alloy fibers being comprised of a matrix of regenerated cellulose having polyvinylpyrrolidone dispersed therein. The polyvinylpyrrolidone may be present in combination with an anionic polymer.
    Type: Grant
    Filed: February 23, 1978
    Date of Patent: December 18, 1979
    Assignee: Avtex Fibers Inc.
    Inventor: Frederick R. Smith