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:
Apr. 14, 2025
Filed:
Oct. 15, 2023
Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);
Jeremy M. Praetorius, Bartlesville, OK (US);
Yongwoo Inn, Bartlesville, OK (US);
Alfred E. Brown, Jr., Collinsville, OK (US);
Brandy Rutledge-Ryal, Bartlesville, OK (US);
Carlos A. Cruz, Kingwood, TX (US);
Jay M. Chaffin, Bartlesville, OK (US);
Chevron Phillips Chemical Company LP, The Woodlands, TX (US);
Abstract
Ethylene-based polymers having a density of 0.952 to 0.968 g/cm, a ratio of HLMI/MI from 185 to 550, an IB parameter from 1.46 to 1.80, a tan δ at 0.1 secfrom 1.05 to 1.75 degrees, and a slope of a plot of viscosity versus shear rate at 100 secfrom 0.18 to 0.28 are described, with low melt flow versions having a HLMI from 10 to 30 g/10 min and a Mw from 250,000 to 450,000 g/mol, and high melt flow versions having a HLMI from 30 to 55 g/10 min and a Mw from 200,000 to 300,000 g/mol. These polymers have the processability of chromium-based resins, but with improved stress crack resistance and topload strength for bottles and other blow molded products.