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. 11, 2002
Filed:
Nov. 23, 1998
Helmut G. Alt, Bayreuth, DE;
Syriac J. Palackal, Bartlesville, OK (US);
Konstantinos Patsidis, Bayreuth, DE;
M. Bruce Welch, Bartlesville, OK (US);
Rolf L. Geerts, Bartlesville, OK (US);
Eric T. Hsieh, Bartlesville, OK (US);
Max P. McDaniel, Bartlesville, OK (US);
Gil R. Hawley, Dewey, OK (US);
Paul D. Smith, Seabrook, TX (US);
Phillips Petroleum Company, Bartlesville, OK (US);
Abstract
Bridged fluorenyl-containing metallocenes of metals of Groups 4-6 and their use in forming homopolymers of alpha olefins or polymers of ethylene and optionally minor amounts of alpha olefins, wherein in each case at least one of the cyclic groups of the bridged ligand is a fluorenyl and the other is selected from indenyl, tetrahydroindenyl, fluorenyl, and in the case of the polymerization of ethylene optionally cyclopentadienyl.