Patents by Inventor Jean M. M. Basset

Jean M. M. Basset 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).

  • Catalyst for the metathesis of olefins
    Patent number: 4639429
    Abstract: Improved catalyst for the metathesis of olefins comprising a compound of W with a halogen and with a phenoxy group which can carry substituents. It contains 4 halogen atoms and 2 phenoxy groups per atom of W. Preferably, the phenoxy group is halogenated. This catalyst allows the more rapid carrying out of various types of metathesis reactions, when it is used as a co-catalyst in conjunction with organo-metallic compounds, particularly Al or Sn. Amongst others, it allows the economical preparation of pheromones. It is practically insensitive to traces of water and oxygen.
    Type: Grant
    Filed: July 18, 1985
    Date of Patent: January 27, 1987
    Assignee: Societe Nationale Elf Aquitaine
    Inventors: Jean M. M. Basset, Michel Leconte, Jean Ollivier, Francoise Quignard
  • Catalyst for the metathesis of olefins
    Patent number: 4550216
    Abstract: Improved catalyst for the metathesis of olefins comprising a compound of W with a halogen and with a phenoxy group which can carry substituents. It contains 4 halogen atoms and 2 phenoxy groups per atom of W. Preferably, the phenoxy group is halogenated. This catalyst allows the more rapid carrying out of various types of metathesis reactions, when it is used as a co-catalyst in conjunction with organo-metallic compounds, particularly Al or Sn. Among others, it allows the economical preparation of pheromones. It is practically insensitive to traces of water and oxygen.
    Type: Grant
    Filed: June 15, 1984
    Date of Patent: October 29, 1985
    Assignee: Societe Nationale Elf Aquitaine
    Inventors: Jean M. M. Basset, Michel Leconte, Jean Ollivier, Francoise Quignard