Patents Assigned to Laboratoire 3 S
  • Oil and alcohol repellent fluorinated surfactants and intermediates, derivatives and uses thereof
    Patent number: 6180826
    Abstract: New water-soluble polyperfluoroalkyl surfactants derived from functional polycarboxylic polymers, characterized by the fact they have alco-oleophobic properties, to be used in the make-up of protein or synthetic foam for extinguishing fires caused not only by hydrocarbons, but also by polar liquids (alcohol, ethers, esters, etc.) without requiring the use of thickening agents, such as polysaccharides.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: January 30, 2001
    Assignee: Laboratoire 3 S
    Inventors: Istvan Szonyi, Stephane Szonyi, Francois Szonyi