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:
Oct. 15, 1996
Filed:
Mar. 10, 1995
Konstantinos Patsidis, Bayreuth, DE;
Bernd Peifer, Bayreuth, DE;
Syriac J Palackal, Bartlesville, OK (US);
Helmut G Alt, Bayreuth, DE;
M Bruce Welch, Bartlesville, OK (US);
Rolf L Geerts, Bartlesville, OK (US);
Darryl R Fahey, Bartlesville, OK (US);
Harold R Deck, Bartlesville, OK (US);
Phillips Petroleum Company, Bartlesville, OK (US);
Abstract
A method is provided for forming a supported cyclopentadiene-type compound comprising contacting a cyclopentadiene-type compound containing an active halogen with an inorganic support having surface hydroxyl group. Also there is provided a method of preparing a supported metallocene comprising reacting the supported cyclopentadiene-type compound with a transition metal compound under suitable conditions. There is also provided a process for producing bridged cyclopentadiene-type ligands having a bridge having branch that has a terminal vinyl group. Also metallocenes of these ligands are provided. Still further there is provided a process for producing bridged cyclopentadiene-type ligands having a bridge having a branch that has a terminal active halogen. The resulting new ligands and supported metallocenes produced therefrom are also provided. There is further provided supported metallocene catalysts wherein at least two metallocenes of differing effectiveness are both bonded to an inorganic support having surface hydroxy groups. Olefin polymerization employing the inventive bridged supported metallocenes is also provided, as well the resulting polymer products.