Patents Assigned to L'Air Liquide-Societe Anoyme a Directoire et Conseil de Surveillance Pour l'Etude et l'Exploitation des Procedes George Claude
  • Block polyester-ether gas separation membranes
    Patent number: 6860920
    Abstract: Gas separation membranes formed from polyester-polyether block copolymers which are useful for separating gases from gas mixtures. The membranes and processes are especially suited for separating polar gases from mixtures that contain polar and non-polar species. The novel membranes exhibit good permeability and permselectivity as well as durability, making them well suited for industrial applications such as removal of acid gases from natural gas and removal of carbon dioxide from synthesis gas.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: March 1, 2005
    Assignee: L'Air Liquide-Societe Anoyme a Directoire et Conseil de Surveillance Pour l'Etude et l'Exploitation des Procedes George Claude
    Inventor: John W. Simmons