The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 21, 2005
Filed:
Apr. 16, 2003
Muhammad Atiqullah, Dhahran, SA;
Akhlaq Moman, Riyadh, SA;
Muhammad Naseem Akhtar, Dhahran, SA;
Atieh Abu-raqabah, Riyadh, SA;
Syriac J. Palackal, Riyadh, SA;
Muhammad A. Al-saleh, Dhahran, SA;
Faizur Rahman, Dhahran, SA;
Muhammad Ibrahim, Riyadh, SA;
Javaid H. Khan, Dhahran, SA;
Muhammad Atiqullah, Dhahran, SA;
Akhlaq Moman, Riyadh, SA;
Muhammad Naseem Akhtar, Dhahran, SA;
Atieh Abu-Raqabah, Riyadh, SA;
Syriac J. Palackal, Riyadh, SA;
Muhammad A. Al-Saleh, Dhahran, SA;
Faizur Rahman, Dhahran, SA;
Muhammad Ibrahim, Riyadh, SA;
Javaid H. Khan, Dhahran, SA;
Abstract
The present invention relates to a supported catalyst system for olefin polymerization which comprises at least one metallocene component and a support of an inorganic oxide of silica, aluminum or a polymer containing hydroxyl groups. The support is modified with an organogermane and/or organotin compound. The inventive catalyst system produces minimal reactor fouling, has excellent productivity and good hydrogen responsiveness. The present invention also relates to a process for preparing the catalyst system and to the slurry/suspension or gas-phase polymerization of olefins using the catalytic system, optionally with a small amount of aluminoxane cocatalyst.