Patents Assigned to Polymerexpert SA
  • Patent number: 11535695
    Abstract: The invention relates to new oil gelling polyurethanes useful for preparing clear gels in organic media (oils, solvents) and to a process for their preparation. The invention also relates to the gels formed from these gelling polyurethanes and to compositions containing them, in particular cosmetic compositions.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: December 27, 2022
    Assignee: POLYMEREXPERT SA
    Inventors: Marc Dolatkhani, Marie Odile Hecht, Eric Lutz, Anne Pagnoux
  • Patent number: 11318044
    Abstract: The invention relates to an aqueous viscoelastic solution comprising: at least one polymer selected from among hyaluronic acid and the salts thereof, and cellulosic derivatives and the salts thereof, in particular hydroxypropyl methylcellulose and the salts thereof; and at least one water-soluble polymer of the polyether-polyurethane or polyether-polyester-urethane type, and to the use thereof in a device intended for the injection of an intraocular implant.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: May 3, 2022
    Assignee: POLYMEREXPERT SA
    Inventors: Marc Dolatkhani, Anne Pagnoux, Sonia Dakhli
  • Patent number: 9708480
    Abstract: The invention relates to metastable polymer compositions, use thereof for manufacturing medical devices or medical device components having a slippery surface as well as the devices with slippery surfaces resulting from these metastable polymer compositions, in particular in the field of ophthalmic injectors.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: July 18, 2017
    Assignee: POLYMEREXPERT SA
    Inventors: Marc Dolatkhani, Christophe Hupin
  • Patent number: 9393346
    Abstract: The invention relates to a process for preparing cements used for reparative or reconstructive bone surgery, in particular for fixing prostheses, for bone repair and for vertebroplasty, and obtained from liquid single-phase formulations. It also relates to the cements prepared from these single-phase formulations and to a device for injecting them.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: July 19, 2016
    Assignee: POLYMEREXPERT SA
    Inventors: Marc Dolatkhani, Christophe Hupin
  • Publication number: 20110269839
    Abstract: The invention relates to a composition for treating and/or preventing snoring, comprising at least one thermogelling polymer that includes water-soluble units as well as units having a lower critical demixing temperature in water. Said composition has the specific feature of being liquid in the packaging thereof and becoming a gel upon contacting mucus membranes at 37° C. Thermogelling makes it possible to precisely target the area to be treated while avoiding any running or migration of the material, and makes the sprayed composition difficult to wash off, thus increasing the duration of the presence thereof in the treatment area.
    Type: Application
    Filed: January 7, 2010
    Publication date: November 3, 2011
    Applicant: POLYMEREXPERT SA
    Inventors: Marc Dolatkhani, Anne Pagnoux
  • Patent number: 7339013
    Abstract: Polymers which comprise polymer chains of terpolymer type which are constituted by poly(ethylene oxide) (PEO) and poly(propylene oxide) (PPO) of PEO-PPO-PEO form, which are modified at their termini by groups which can essentially be other chains of PEO-PPO-PEO, acid segments, amine groups or PEOs, these chains being linked to the terpolymer chains via chemical bridges which are constituted by urethane bridges, urea bridges, allophanate bridges and biuret bridges, and which comprise more than 80% by weight of said PEO-PPO-PEO. Thermoreversible physical gels of high viscosification index, which contain these polymers, and their uses. Preparation of these polymers and of these gels.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: March 4, 2008
    Assignee: Polymerexpert SA
    Inventors: Anne Pagnoux, Marc Dolatkhani, Patricia Chaffaux