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:
Mar. 15, 2016
Filed:
Dec. 12, 2012
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Gerd A. Allermann, Overijse, BE;
Danny Van Hoyweghen, Heverlee, BE;
Steven A. Best, The Woodlands, TX (US);
Anthony Poloso, Houston, TX (US);
Nicolas M. De Ketelaere, Tourinnes-la-Grosse, BE;
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
Processes are disclosed for oxygen-tailoring polyethylene, particularly polyethylenes suitable for wire and cable applications. One process includes conveying a first polyethylene having a melt index ≦5.0 and an MWD ≦5.0 through mixing or extrusion apparatus having a feed zone, a melt-mixing zone downstream of the feed zone, and a melt zone downstream of the melt-mixing zone, wherein the temperature of the first polyethylene in the melt zone ranges from about 180° C. to about 300° C.; and contacting the first polyethylene with an amount of an oxygen-containing gas having at least about 20.0 parts by weight oxygen per million per parts by weight of the first polyethylene (ppm (wt) O). Polyethylene compositions having improved properties, particularly for wire and cable applications are disclosed.