Patents by Inventor Agreda Tomas C.

Agreda Tomas C. 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).

  • Olefin hydrogenation procedure
    Patent number: 5321175
    Abstract: Procedure of olefin hydrogenation in liquid phase in the presence of homogeneous catalysts that contain, as essential component, a titanocene of general formula Cp CpTiR.sub.2, Cp CpTiR.sub.2, Cp Cp[CpTiR.sub.2 ].sub.2, or Cp Cp[Cp TiR.sub.2 ].sub.2 where Cp is a pentamethylcyclopentadienyl, Cp cyclopentadienyl, Cp Cp are two cyclopentadienyl rings linked together by a dimethylsililene (Me.sub.2 Si), and R is an alyl, aryl, alkylaryl, or alcoxide group containing between 1 and 20 carbon atoms or a halogen atom, a PPh.sub.2, CH.sub.2 SiMe.sub.3, CH.sub.2 PPh.sub.2, or H.These catalysts are very active in the hydrogenation of linear and branched, internal and external olefins, cycloolefins and diolefins.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: June 14, 1994
    Assignee: Repsol Quimica S.A.
    Inventors: Juan Antonio Barrio Calle, Maria Dolores Parellada Ferrer, Agreda Tomas C., Juan C. F. Serrano, Pascual R. Gracia