Patents by Inventor Orass Hamed

Orass Hamed 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).

  • Supported metallocene catalyst system for olefin polymerization
    Publication number: 20020099154
    Abstract: A catalyst composition has a catalyst component which includes a metallocene transition metal compound, a magnesium compound, a hydroxyl containing compound, and a polymeric material. The catalyst component may also include asilicon compound and an aluminum compound. The catalyst component is combined with a cocatalyst and used in olefin polymerization.
    Type: Application
    Filed: September 10, 2001
    Publication date: July 25, 2002
    Applicant: Saudi Basic Industries Corporation.
    Inventors: Orass Hamed, Akhlaq Moman, Atieh Abu-Raqabah
  • Catalyst compositions for polymerizing olefins to multimodal molecular weight distribution polymer, processes for production and use of the catalyst
    Patent number: 6403520
    Abstract: A solid catalyst component comprises a transition metal-containing metallocene compound, a non-cyclopentadienyl transition metal compound, a magnesium compound and a polymeric material which acts as a support. The catalyst component is combined with co-catalyst organoaluminum compound or a mixture of organoaluminum compounds to provide a catalyst composition useful for olefin polymerization, e.g., to produce linear low, medium and high density polyethylenes or copolymerization of ethylene with alpha-olefins. Product polyolefin polymers have a varied range of molecular weight distributions. The catalyst composition is prepared by a process comprising combining polymer support particles, magnesium compound, transition metal-containing metallocene compound, and non-cyclopentadienyl transition metal compound to provide a solid catalyst component, and, combining the solid catalyst component with a cocatalyst compound to provide a polyolefin polymerization catalyst composition.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: June 11, 2002
    Assignee: Saudi Basic Industries Corporation
    Inventors: Orass Hamed, Akhlaq Moman, Atieh Abu-Raqabah
  • Supported metallocene catalyst system for olefin polymerization
    Patent number: 6288182
    Abstract: A catalyst composition has a catalyst component which includes a metallocene transition metal compound, a magnesium compound, a hydroxyl containing compound, and a polymeric material. The catalyst component may also include asilicon compound and an aluminum compound. The catalyst component is combined with a cocatalyst and used in olefin polymerization.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: September 11, 2001
    Assignee: Saudi Basic Industries Corporation
    Inventors: Orass Hamed, Akhlaq Moman, Atieh Abu-Raqabah