Patents Assigned to Cheming S.A. Luxembourg
  • Terminated silane Michael polyaddition polymer
    Patent number: 6221994
    Abstract: A terminated silane polymer is produced by reacting an organic derivative of silicon with the terminal groups of polymers that are obtained by a Michael polyaddition reaction of organic compounds that contain at least two active hydrogens to organic components that contain at least two ethylene bonds that are activated by the presence, in the alpha position with regard to each ethylene bond, of an electronegative group.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: April 24, 2001
    Assignee: Cheming, S.A. Luxembourg
    Inventors: Paolo Galbiati, Alessandro Galbiati
  • Method and device for the extrusion of a polymeric substance
    Patent number: 6189735
    Abstract: The polymeric substance delivery method and device, in which the outflow is determined from a first container (5) of a monomeric substance able to polymerize autonomously upon air contact, and eventually, the outflow from a second container (7) is determined of a hardening substance able to accelerate the polymerization of the monomeric substance, by sending the same hardening substance towards a mixing zone of the hardening substance with the same monomeric substance.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: February 20, 2001
    Assignee: Cheming S.A. Luxembourg
    Inventor: Maria Teresa Plasmati-Lüchinger