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:
May. 10, 2022
Filed:
Sep. 08, 2020
Applicant:
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Inventors:
William J. Zafian, Houston, TX (US);
Henri A. Lammens, Antwerp, BE;
Assignee:
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
C08F 110/02 (2006.01); C08F 2/02 (2006.01); H01B 3/44 (2006.01);
U.S. Cl.
CPC ...
C08F 110/02 (2013.01); H01B 3/441 (2013.01);
Abstract
Methods for producing polyethylene compositions having broader melt index ratio and narrower molecular weight distribution in high pressure multi-feed tubular reactors are provided. The methods are useful in multi-feed tubular reactors comprising three or more reaction zones. The first reaction zone or the first and second reaction zone having a peak temperature that is lower than standard peak temperatures for polymerization of ethylene monomer in a tubular reactor.