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. 12, 2026
Filed:
Apr. 13, 2021
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Martin Antensteiner, Houston, TX (US);
Nathaniel B. Guy, Sewickely, PA (US);
Porter C. Shannon, Seabrook, TX (US);
Richard E. Pequeno, Baytown, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
Provided are polyethylene copolymers with improved stress crack resistance, methods for making such copolymers, and films made from the same. The polyethylene copolymers include at least 95 wt % ethylene and at most 5 wt % of at least one comonomer having 3 to 18 carbon atoms; and further have a 30% single point notched constant tensile load of at least 1,000 hours, a density of 0.931 to 0.936 g/cm, a melt index (I) of 0.1 to 0.5 g/10 min, and a 25-75 chemical composition distribution index of 0.3 or more.