Patents by Inventor Antonio Diaz-Barrios

Antonio Diaz-Barrios 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).

  • Olefin polymerization catalyst with additive comprising aluminum-silicon composition, calixarene derivatives or cyclodextrin derivatives
    Patent number: 5767034
    Abstract: An olefin polymerization catalyst includes a halogen-containing magnesium compound; a titanium compound; and an additive selected from the group consisting of (a) a mixture of an aluminum alkoxide compound and polydimethylsiloxane, (b) an aluminosiloxane, (c) the reaction product of an aluminum alkyl and a calixarene, (d) the reaction product of an aluminum alkyl and a cyclodextrin, and mixtures of (a)-(d).
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: June 16, 1998
    Assignee: Intevep, S.A.
    Inventors: Antonio Diaz-Barrios, Jose Liscano, Marianela Trujillo, Giuseppe Agrifoglio, Jose Orlando Matos