Patents Assigned to PurThread Technologies, Inc.
  • Patent number: 10506805
    Abstract: A method for producing fibers with improved color and anti-microbial properties is described. One embodiment includes a method for generating a halogen stable antimicrobial synthetic fiber, the method comprising creating a mixture that includes a polymer, an anti-microbial agent, and a non-halogen pigment, and extruding the mixture to form an anti-microbial synthetic fiber.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: December 17, 2019
    Assignee: PurThread Technologies, Inc.
    Inventors: Stephen Woodrow Foss, Reyad Ilayan Sawafta
  • Patent number: 10508188
    Abstract: High-melting antimicrobial polymer fibers and antimicrobial fabrics comprising such fibers are prepared by preparing a masterbatch of polymer pellets (e.g., PET), silver and copper salts, and a compounding agent which provides free flowing polymer pellets which can be prepared in advance, with a long shelf life. Polymer masterbatches prepared by the methods of the invention can produce limited color or off-white antimicrobial fibers and fabrics using conventional melt spinning manufacturing methods. Fabrics incorporating fibers of the present invention are potent inhibitors of Athlete's foot fungi, gram negative and gram positive bacteria, and drug resistant pathogens.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: December 17, 2019
    Assignee: PurThread Technologies, Inc.
    Inventors: Stephen W. Foss, Stanley Chamberlain, Lloyd Frick
  • Patent number: 10080363
    Abstract: A method for producing fibers with improved color and anti-microbial properties is described. One embodiment includes a method for generating a halogen stable antimicrobial synthetic fiber, the method comprising creating a mixture that includes a polymer, an anti-microbial agent, and a non-halogen pigment, and extruding the mixture to form an anti-microbial synthetic fiber.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: September 25, 2018
    Assignee: PurThread Technologies, Inc.
    Inventors: Stephen Woodrow Foss, Reyad Ilayan Sawafta
  • Patent number: 9908987
    Abstract: High-melting antimicrobial polymer fibers and antimicrobial fabrics comprising such fibers are prepared by preparing a masterbatch of polymer pellets (e.g., PET), silver and copper salts, and a compounding agent which provides free flowing polymer pellets which can be prepared in advance, with a long shelf life. Polymer masterbatches prepared by the methods of the invention can produce limited color or off-white antimicrobial fibers and fabrics using conventional melt spinning manufacturing methods. Fabrics incorporating fibers of the present invention are potent inhibitors of Athlete's foot fungi, gram negative and gram positive bacteria, and drug resistant pathogens.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: March 6, 2018
    Assignee: PurThread Technologies, Inc.
    Inventors: Stephen W. Foss, Stanley Chamberlain, Lloyd Frick
  • Patent number: 9878480
    Abstract: A method of making synthetic polymer pellet feedstock having a high concentration of an anti-microbial agent includes the steps of: introducing a polymer into a mixing vessel; introducing a polysiloxane dispersant into the mixing vessel; introducing an anti-microbial agent comprised of a powdered metal material into the mixing vessel; heating and mixing the polymer, the polysiloxane dispersant and the anti-microbial agent to form a molten blend that exhibits a generally homogenous dispersal of the anti-microbial agent; extruding the molten blend to form filaments; and cutting the filaments to form metalized synthetic polymer pellet feedstock. The powdered metal material includes particles of silver in metallic or salt form measuring between about 2 micrometers and about 12 micrometers and particles of copper in metallic or salt form measuring between about 2 micrometers and about 12 micrometers.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: January 30, 2018
    Assignee: PurThread Technologies, Inc.
    Inventors: Lisa Thomas Grimes, David John Reed, Martin Wade Beasley, Alan Fenner Boyd, Lloyd Walter Frick
  • Publication number: 20140374941
    Abstract: A method for producing fibers with improved color and anti-microbial properties is described. One embodiment includes a method for generating a halogen stable anti-microbial synthetic fiber, the method comprising creating a mixture that includes a polymer, an anti-microbial agent, and a non-halogen pigment, and extruding the mixture to form an anti-microbial synthetic fiber.
    Type: Application
    Filed: September 10, 2014
    Publication date: December 25, 2014
    Applicant: PurThread Technologies, Inc.
    Inventors: Stephen Woodrow Foss, Reyad Ilayan Sawafta
  • Publication number: 20120222826
    Abstract: An improved removable curtain is described. One embodiment includes a curtain comprising an upper section; and a lower section, wherein at least one of the upper section or the lower section has anti-microbial properties, and wherein the lower section is connected to the upper section with a quick change mechanism such as a zipper or snaps. The anti-microbial properties of the curtain may be from anti-microbial fibers incorporated into the curtain, from an anti-microbial coating, or from both.
    Type: Application
    Filed: April 24, 2012
    Publication date: September 6, 2012
    Applicant: PurThread Technologies, inc.
    Inventors: Stephen W. Foss, Richard S. Bodman
  • Publication number: 20120094120
    Abstract: A method for producing fibers with improved color and anti-microbial properties is described. One embodiment includes a method for generating a halogen stable anti-microbial synthetic fiber, the method comprising creating a mixture that includes a polymer, an anti-microbial agent, and a cationic pigment, and extruding the mixture to form an anti-microbial synthetic fiber.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 19, 2012
    Applicant: PurThread Technologies, Inc.
    Inventors: Stephen Woodrow Foss, Reyad Ilayan Sawafta