Patents Assigned to Nylstar
  • Cosmetic textile fiber, method for obtaining it and use thereof
    Patent number: 9174378
    Abstract: The present invention describes a polyamide textile fiber comprising conjugated nanoparticles homogeneously dispersed in the fiber, selected from polyethylene glycol-conjugated platinum nanoparticles, hyaluronic acid-conjugated gold nanoparticles and mixtures thereof. The invention also describes how to obtain it as well as its use in a cosmetic skin treatment as a system for the release of said conjugated nanoparticles.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: November 3, 2015
    Assignee: NYLSTAR, S.A.
    Inventors: Alfonso Cirera Santasusana, Esteve Soy Fabra
  • COSMETIC TEXTILE FIBER, METHOD FOR OBTAINING IT AND USE THEREOF
    Publication number: 20130302386
    Abstract: The present invention describes a polyamide textile fiber comprising conjugated nanoparticles homogeneously dispersed in the fiber, selected from polyethylene glycol-conjugated platinum nanoparticles, hyaluronic acid-conjugated gold nanoparticles and mixtures thereof. The invention also describes how to obtain it as well as its use in a cosmetic skin treatment as a system for the release of said conjugated nanoparticles.
    Type: Application
    Filed: July 28, 2011
    Publication date: November 14, 2013
    Applicant: NYLSTAR, S.A.
    Inventors: Alfonso Cirera Santasusana, Esteve Soy Fabra
  • Method for making stabilised polyamide compositions
    Patent number: 7074851
    Abstract: The invention relates to a process for preparing stabilized compositions based on polyamide. The stabilizer is a phosphorus stabilizer selected from phosphorous acid and hypophosphorous acid. It is introduced before or during the polymerization of the polyamide. The use of these stabilizers prevents foaming phenomena.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: July 11, 2006
    Assignee: Nylstar S.A.
    Inventors: Thierry Charbonneaux, Jean-François Thierry
  • Multifilament textile yarns with hollow section, method for making same, and textile surfaces obtained from said yarns
    Patent number: 6565972
    Abstract: The invention concerns a multifilament textile yarn whereof the filaments or staples have a hollow section, a method for making said hollow yarn, and textile surfaces obtained from said yarns. More particularly, it concerns a method for making multifilament yarns comprising hollow filaments obtained by melt-drawing of a polyamide composition having a yarn count less than 10 dtex for each staple and whereof the staples with hollow section have a central hollow surface representing at least 5% of the total surface in said staple transfer section. The invention is characterized in that the yarn has an USTER coefficient (U %) less than 3% and a number of staple with arc-shaped section less than 30% of the total number of staples with hollow section. The flat yarns, twisted and textured are used in particular for mixing textile surfaces, such as woven or knitted fabric.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: May 20, 2003
    Assignee: Nylstar
    Inventors: Vincent Pellerin, Walter Roggenstein, Uwe Schaffner