Contains Two Or More Diverse Non-transition Elemental Metals, Different Non-transition Hydride Compounds, Different Carbon To Non Transition Metal Compounds, Or Mixture Thereof Patents (Class 526/148)
At least one atom of as, sb, or bi, in elemental form or bonded to hydrogen or carbon atom (Class 526/149)
At least one atom of ge, sn, or pb in elemental form or bonded to hydrogen or carbon atom (Class 526/150)
At least one atom of group iiia metal (al, ga, in, tl) in elemental form or bonded to hydrogen or carbon atom (Class 526/151)
  • Method of producing solid polymers
    Patent number: 3954909
    Abstract: A method for producing solid polymers having a molecular weight greater than 50,000 from olefins wherein the olefin is polymerized in the absence of a liquid dispersion agent of a nature different from that of the olefin to be polymerized, and in contact with a prepolymer containing a small amount of transition metal of subgroups IV-b, V-b and VI-b having been produced by the polymerization of an olefin in a dispersion liquid containing a Ziegler-type catalyst.
    Type: Grant
    Filed: July 16, 1973
    Date of Patent: May 4, 1976
    Assignee: Naphtachimie
    Inventors: Lazlo J. Havas, Pierre M. Mangin