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:
Jul. 19, 2022
Filed:
Jun. 14, 2017
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Narayanaswami Dharmarajan, Houston, TX (US);
Francis C. Rix, Houston, TX (US);
Jo Ann M. Canich, Houston, TX (US);
Danica L. Nguyen, Houston, TX (US);
Peijun Jiang, Katy, TX (US);
Rhutesh K. Shah, Katy, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
Compositions are provided which include blends of (A) branched and/or bimodal ethylene copolymers and (B) linear ethylene copolymers. The branched and/or bimodal ethylene copolymers may be produced using a dual metallocene catalyst system comprising two different metallocene catalysts: one capable of producing high Mooney-viscosity polymers and one suitable for producing polymers having at least a portion of vinyl terminations. The linear ethylene copolymers may be produced using a metallocene catalyst capable of producing high Mooney-viscosity polymers, which may be the same as such catalyst of the dual metallocene catalyst system. Processes for making such blends, including parallel and/or series polymerization processes, are also provided. The blends may have excellent cure properties suitable in curable rubber compound applications.