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:
Nov. 30, 2021
Filed:
Aug. 27, 2019
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Matthew W. Holtcamp, Huffman, TX (US);
Charles J. Harlan, Houston, TX (US);
Subramaniam Kuppuswamy, Mont Belvieu, TX (US);
Matthew S. Bedoya, Humble, TX (US);
Kevin A. Stevens, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
This invention relates to metallocene compounds represented by the formula: catalyst systems comprising said metallocene compound and an activator or a reaction product of the metallocene compound with the at least one activator, and polymerization processes using such metallocene compounds and activators, where Cpand Cpare optionally-substituted cyclopentadienyl rings; A is bridging group; q is zero or 1; Q is O, O(CRR), (CRR)O, or (CRR); m is 0 to 18; Z is (CRR); LA is a Lewis acid; M is a transition metal; Xand Xare independently Ror OR; Rand Rare independently selected from optionally-substituted hydrocarbyl groups; Rand Rare independently selected from the group consisting of H, halogen, and an optionally-substituted hydrocarbyl group; and Ris alkyl, aryl, perfluoroalkyl, or perfluoroaryl.