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:
Nov. 01, 2005
Filed:
Feb. 08, 2001
Francis C. Rix, League City, TX (US);
Terry J. Burkhardt, Kingwood, TX (US);
Robert T. LI, Houston, TX (US);
William T. Haygood, Jr., Houston, TX (US);
Francis C. Rix, League City, TX (US);
Terry J. Burkhardt, Kingwood, TX (US);
Robert T. Li, Houston, TX (US);
William T. Haygood, Jr., Houston, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
The present invention relates to ligands and the synthesis of those ligands for use in metallocene complexes. More particularly, the present invention relates to the synthesis of diarylsilyl bridged biscyclopentadienes using diarylsilyldisulfonates. Even more particularly, the present invention describes Group IV metallocenes containing diarylsilyl bridged bis-cyclopentadienyl ligands prepared from contacting a diarylsilyldisulfonate with an organometallic indenyl reagent.