Patents by Inventor Daniel C. Viger

Daniel C. Viger 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 Preparing Polymers and Compositions Thereof
    Publication number: 20130310291
    Abstract: The present invention provides a process for preparing a polymer, employing the steps of: (1) contacting a free radical initiator; a chain transfer agent containing a thiocarbonyl thio group and a free radical leaving group; and a radically polymerisable monomer, to form a polymer chain; and (2) contacting the polymer chain of step (1) with at least one of a polyvalent coupling agent, a polymerisation inhibitor, a grafting acylating agent, an amine and an oil of lubricating viscosity. The invention further provides compositions and uses for the polymer.
    Type: Application
    Filed: July 8, 2013
    Publication date: November 21, 2013
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Marina Baum, Barton J. Schober, Mark C. Davies, Daniel C. Viger, John R. Johnson