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:
Aug. 23, 2005
Filed:
Jun. 22, 2001
James M. Farley, League City, TX (US);
Richard W. Halle, Houston, TX (US);
George Panagopoulos, Cypress, TX (US);
Jerry M. Johnson, League City, TX (US);
Douglas J. Laurent, Appleton, WI (US);
Alan M. Malakoff, Houston, TX (US);
James M. Farley, League City, TX (US);
Richard W. Halle, Houston, TX (US);
George Panagopoulos, Cypress, TX (US);
Jerry M. Johnson, League City, TX (US);
Douglas J. Laurent, Appleton, WI (US);
Alan M. Malakoff, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
A very low density polyethylene having a density of 0.890 to 0.915 and a Dart Drop value of at least about 450 g/mil or above is disclosed. Gas phase polymerization methods are also disclosed for making very low density linear polyolefins utilizing a metallocene catalyst, and the resulting polyolefin products. In a specific embodiment, a gas phase polymerization process is disclosed relating to the formation of a linear polyethylene having a very low density, e.g., ranging from 0.890 to 0.915, but with improved toughness.