Title:
OXYGEN TAILORING OF POLYETHYLENE
Document Type and Number:
WIPO Patent Application WO/2013/137953
Kind Code:
A8
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) O2). Polyethylene compositions having improved properties, particularly for wire and cable applications are disclosed.
Inventors:
ALLERMANN GERD A (BE)
VAN HOYWEGHEN DANNY (BE)
BEST STEVEN A (US)
POLOSO ANTHONY (US)
DE KETELAERE NICOLAS M (BE)
VAN HOYWEGHEN DANNY (BE)
BEST STEVEN A (US)
POLOSO ANTHONY (US)
DE KETELAERE NICOLAS M (BE)
Application Number:
PCT/US2012/069125
Publication Date:
December 19, 2013
Filing Date:
December 12, 2012
Export Citation:
Assignee:
EXXONMOBIL CHEM PATENTS INC (US)
International Classes:
C08F8/06; C08F8/00; C08F8/50; C08F10/02; H01B3/44; C08F210/16
Attorney, Agent or Firm:
ABDON, Robert, L. et al. (Law TechnologyP.O.box 214, Baytown TX, US)
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