Patents Assigned to Antirouille
  • Apparatus intended to contain hydrofluoric acid, with a metal wall coated with a protective material
    Patent number: 5236750
    Abstract: The present invention relates to protection against the corrosive action of hydrofluoric acid.According to the invention it has been found that a material consisting of an elastomeric substrate or matrix and a filler of metal particles dispersed in the substrate, of a metal which can be oxidized by ionized hydrofluoric acid, can limit or prevent the diffusion of hydrofluoric acid.The materials according to the invention can be employed in all the suitable forms, especially as sheets, for protecting metal walls.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: August 17, 1993
    Assignee: Antirouille
    Inventors: Robert Duret, Gilles Finaz, Cu Cuong Trinh, Olivier Vittori