Patents Assigned to Societe d'Application et de Developpement de Techniques Nouvelles, S.A.D.E.V.
  • Method of producing a cellular resin suitable for use as an insulating material
    Patent number: 4467051
    Abstract: A cellular foam particularly suitable for use as thermal or accoustic insulation is produced by the condensation in an acidic medium in the presence of a catalyst hardener of methyloldihydroxydiphenylmethylene ether isomers.
    Type: Grant
    Filed: September 20, 1983
    Date of Patent: August 21, 1984
    Assignee: Societe d'Application et de Developpement de Techniques Nouvelles, S.A.D.E.V.
    Inventors: Gilles Finaz, Robert Michon, Michel Rasclard