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:
Jun. 30, 2026
Filed:
Feb. 12, 2021
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
George J. Pehlert, Houston, TX (US);
Ranadip Ganguly, Houston, TX (US);
Christopher G. Bauch, Seabrook, TX (US);
Blu E. Englehorn, Houston, TX (US);
Xiaodan Zhang, Houston, TX (US);
Mark S. Chahl, Friendswood, TX (US);
Kevin W. Lawson, Houston, TX (US);
Xuejia Yan, Manvel, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
Processes for forming a polypropylene composition are provided herein comprising the steps of making a first propylene-based copolymer having a molecular weight distribution between 3 to 8.5, and making a second propylene-based polymer in the presence of the first propylene-based polymer to produce the polypropylene composition having a high molecular weight tail in the amount of between 1.0 wt. % and 10.0 wt. %. The polypropylene compositions produced have a broad molecular weight distribution and high molecular weight tail to provide improved stiffness while retaining toughness.