Patents by Inventor Adrian L. Wallace

Adrian L. Wallace 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).

  • Method for the preparation of non-crystalline polymers of high molecular weight
    Patent number: 4358572
    Abstract: A process for the preparation of a drag reducing substance which comprises:(a) a transition metal catalyst slurry containing:1. crystalline titanium halide having the general formula TiXn where n=2.5 to 3.0 and X is halogen,2. a hydrocarbon diluent, and3. an ether;(b) a co-catalyst;(c) alpha-monoolefinic hydrocarbons containing from 2 to 30 carbon atoms under suitable polymerization conditions providing for an ultrahigh molecular weight polymer that is soluble in hydrocarbons; and(d) ceasing the polymerization at a polymer content of 20 percent by weight or less.
    Type: Grant
    Filed: May 7, 1981
    Date of Patent: November 9, 1982
    Assignee: Conoco Inc.
    Inventors: Mark P. Mack, Lewis B. Decker, Jr., Adrian L. Wallace