Patents Assigned to Avtex Fibers Inc.
  • Article and method for making high fluid-holding fiber mass
    Patent number: 4063558
    Abstract: Method for making alloy fibers having high fluid-holding capacity, the alloy fibers being comprised of a matrix of regenerated cellulose having alkali metal salts of alginic acid uniformly dispersed therein.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: December 20, 1977
    Assignee: Avtex Fibers Inc.
    Inventor: Frederick R. Smith
  • Textile fiber blend comprising cellulosic fibers and ethylene 2,6-naphthalene dicarboxylate-halogenated comonomers copolyester fibers
    Patent number: 4059546
    Abstract: A flame-retardant filament-forming copolyester of at least 75 mol % of ethylene-2,6-naphthalene dicarboxylate units and at least 3 mol % up to 25 mol % of randomly copolymerized esters units having bromine or chlorine chemically united with either the diacid residue or both the diacid residue and the diol residue of said ester units. In addition, fibers of the above flame-retardant copolyester resin and flame-retardant cellulosic fibers are blended together to provide flame-retardant yarns and fabrics of excellent physical properties.
    Type: Grant
    Filed: August 3, 1973
    Date of Patent: November 22, 1977
    Assignee: Avtex Fibers Inc.
    Inventor: William N. Knopka
  • Ethylene 2,6-naphthalene dicarboxylated-alkylene-2,5 dibromoterephthalate flame-retardant copolyesters
    Patent number: 4045513
    Abstract: A flame-retardant filament-forming copolyester resin of at least 75 mol % of ethylene-2,6-naphthalene dicarboxylate units and at least 5 mol % up to 25 mol % of alkylene-2,5-dibromoterephthalate units is disclosed herein. In addition, fibers of the above flame-retardant copolyester resin and flame-retardant cellulosic fibers are blended together to provide flame-retardant yarns and fabrics of excellent physical properties.
    Type: Grant
    Filed: January 30, 1973
    Date of Patent: August 30, 1977
    Assignee: Avtex Fibers Inc.
    Inventor: William N. Knopka
  • Method for making high fluid-holding fiber mass
    Patent number: 4041121
    Abstract: Method for making alloy fibers having high fluid-holding capacity, the alloy fibers being comprised of a matrix of regenerated cellulose having polyvinylpyrrolidone uniformly dispersed therein.
    Type: Grant
    Filed: October 24, 1975
    Date of Patent: August 9, 1977
    Assignee: Avtex Fibers Inc.
    Inventor: Frederick R. Smith
  • Method of preparing an alkali-metal salt of an alkoxysulfonated benzoic acid glycol ester
    Patent number: 4003878
    Abstract: An alkali-metal salt of an alkoxysulfonated benzoic acid glycol ester is prepared by reacting a meta- or para-hydroxy substituted benzoic acid with an alkali-metal alkoxide and a solvent reactant consisting essentially of an alkylene glycol, and then reacting the formed glycol ester with an alkane sultone.
    Type: Grant
    Filed: March 26, 1973
    Date of Patent: January 18, 1977
    Assignee: Avtex Fibers Inc.
    Inventors: Thomas F. Skaar, John A. Price