Patents by Inventor Jean-Baptiste Matteodo

Jean-Baptiste Matteodo 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).

  • Stabilized polyethylene composition
    Patent number: 5132344
    Abstract: A stabilized polyethylene composition containing catalyst residues comprising at least one transition metal comprises (a) polyethylene, (b) 100 to 2000 ppm by weight based on the total weight of the composition of one or more antioxidants of the phenolic type and (c) 100 to less than 2000 ppm by weight, based on the total weight of the composition of zinc oxide but substantially no calcium stearate. The composition has improved color and improved resistance to coloration effects.
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: July 21, 1992
    Assignee: BP Chemicals Limited
    Inventor: Jean-Baptiste Matteodo