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:
May. 17, 2005
Filed:
Oct. 23, 2003
Abbas Razavi, Mons, BE;
Margarito Lopez, Pasadena, TX (US);
Didier Baekelmans, Munich, DE;
Vladimir Marin, Houston, TX (US);
Abbas Razavi, Mons, BE;
Margarito Lopez, Pasadena, TX (US);
Didier Baekelmans, Munich, DE;
Vladimir Marin, Houston, TX (US);
Fina Technology, Inc., Houston, TX (US);
Abstract
A catalyst system having the following formula is described herein.wherein M is a metal; each X is an atom or group banded to M and may be the same or different; Rand Rmay be the same or each may be different and are substituted or unsubstituted cyclopentadienyl or aromatic groups; Ris a structural bridge between Rand Rimparting stereorigidity thereto and including at least one heteroatom bonded to M, with each of Rand Rbonded to the same or different heteroatom of Rwhich heteroatom is also bonded to M; Z is the coordination number of M and is greater than or equal to 4 and m is the number of bonds between M and heteroatoms of R.