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. 21, 2008
Filed:
Oct. 10, 2003
Palanisamy Arjunan, Houston, TX (US);
Thottinal A. Mathew, Houston, TX (US);
Patrick Brant, Seabrook, TX (US);
James C. Vizzini, Pasadena, TX (US);
Palanisamy Arjunan, Houston, TX (US);
Thottinal A. Mathew, Houston, TX (US);
Patrick Brant, Seabrook, TX (US);
James C. Vizzini, Pasadena, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
Branched crystalline polypropylene compositions and methods for the preparation of branched crystalline polypropylene compositions are provided. For example, described herein is a process of preparing a branched crystalline polypropylene composition that includes combining two or more different metallocene catalyst compounds with a polymerization medium that includes propylene, for a time sufficient to provide branched crystalline polypropylene that has from 0.0 wt % to 2.0 wt % ethylene and a heat of fusion of 70 J/g or more.