Patents by Inventor Antonio Clarrocchi

Antonio Clarrocchi 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).

  • Component and catalysts for the polymerization of olefins
    Patent number: 5221651
    Abstract: Spherical catalyst components for the polymerization of olefins comprising a titanium compound and optionally an electron-donor supported on anhydrous magnesium chloride, characterized by a surface area between 20 and 250 m.sup.2 /g, porosity between 0.25 and 0.5 cc/g, and an X-ray spectrum where the magnesium chloride reflections are present at 2 .nu. of 35.degree. and 14.95.degree., or where the reflection at 35.degree. is substituted by a halo with the maximum intensity between 33.5.degree. and 35.degree. and the reflection of 2 .nu. at 14.95.degree. is absent.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: June 22, 1993
    Assignee: Himont Incorporated
    Inventors: Mario Sacchetti, Gabriele Govoni, Antonio Clarrocchi