Patents by Inventor Martine Anstett

Martine Anstett has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the production of zeolite membranes supported on porous glass and a zeolite membrane so produced
    Patent number: 6197427
    Abstract: A process for the production of a composite membrane constituted by a continuous zeolite layer which is principally located on the surface of a glass support is described. The process comprises, in succession, at least one step in which partial hydrolysis of the silica of the internal and external surfaces of the porous support is carried out, and a zeolite crystallization step. The supported zeolite membranes obtained are advantageously used in continuous separation processes.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: March 6, 2001
    Assignee: Institut Francais du Petrole
    Inventors: Martine Anstett, Ronan Le Dred, Jean-Louis Guth, Alain Methivier, Christian Streicher
  • Process for the production of supported zeolite membranes, and zeolite membranes so produced
    Patent number: 6140263
    Abstract: A process for the production of a controlled supported zeolite membrane comprises: (a) forming a gel which is principally localised at the surface of a porous support by bringing it into contact, in succession, with two immiscible liquids which contain the agents necessary for formation of said gel, then (b) crystallising the zeolite from said gel and finally (c) eliminating the residual agents. The supported zeolite membranes obtained are advantageously used in continuous gas separation processes.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: October 31, 2000
    Assignee: Institute Francais du Petrole
    Inventors: Martine Anstett, Ronan Le Dred, Jean-Louis Guth, Alain Methivier, Christian Streicher