Patents by Inventor Jacques Breulet

Jacques Breulet 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).

  • Ethylene polymer and processes for obtaining it
    Patent number: 6201078
    Abstract: Ethylene polymer having a die swell ratio (RB) of at least 1.4, a resistance to crazing under stress (ESCR) of at least 55 h and a melt index (MI5) of at least 0.2 g/10 min. Processes for obtaining this ethylene polymer using different catalytic systems, the first based on titanium and zirconium used in a polymerization in two reactors; the second consisting of a mixture of a titanium catalyst and a titanium and zirconium catalyst, used in a polymerization in two reactors; the third based on chromium on a support comprising at least two constituents chosen from silica, alumina and aluminum phosphates, used in a polymerization in a single or in two reactors.
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: March 13, 2001
    Assignee: Solvay Polyolefins Europe-Belgium
    Inventors: Jacques Breulet, Benoît Koch, Michel Promel, Jiang Bian, Olivier LHost