Patents Represented by Attorney James Costello

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  • Preparing crosslinkable polymers employing macromonomer chain transfer agents
    Patent number: 5773534
    Abstract: An improved method of free radical polymerization conducted in the presence of a relatively low molecular weight macromonomer such as can be made with a metal chelate chain transfer catalyst. This method has various uses, including reducing the molecular weight of a variety of crosslinkable polymers and copolymers.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: June 30, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Joseph A. Antonelli, Charles T. Berge, Michael J. Darmon, Christopher E. Murphy