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. 12, 2010
Filed:
Jan. 18, 2008
JO Ann M. Canich, Houston, TX (US);
Peijun Jiang, League City, TX (US);
Gary L. Casty, Easton, PA (US);
Gabor Kiss, Hampton, NJ (US);
Alexander Z. Voskoboynikov, Moscow, RU;
Jo Ann M. Canich, Houston, TX (US);
Peijun Jiang, League City, TX (US);
Gary L. Casty, Easton, PA (US);
Gabor Kiss, Hampton, NJ (US);
Alexander Z. Voskoboynikov, Moscow, RU;
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
In a process for producing a propylene-based olefin homopolymer or copolymer, a monomer composition comprising propylene is contacted with a polymerization catalyst system under homogeneous polymerization conditions (such as solution, supersolution or supercritical conditions), wherein the polymerization catalyst system includes an activator and a bridged bis-indenyl transition metal (group 4) compound substituted with a carbazole (unsubstituted or substituted) at the 4 position.